Aug 02 02:34:29.151 INFO checking pdf-0.6.2 against 1.27.2 for lazy_static-1
Aug 02 02:34:29.151 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:34:29.151 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:34:29.152 INFO running `"docker" "create" "-v" "/tmp/crater.cmvOAEDLya0Z:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 02 02:34:29.426 INFO blam! 4f39f1cb6a14428edb1479d1c082801cf52141cbe03227d64833e6351a1d22d9
Aug 02 02:34:29.431 INFO running `"docker" "start" "-a" "4f39f1cb6a14428edb1479d1c082801cf52141cbe03227d64833e6351a1d22d9"`
Aug 02 02:34:30.374 INFO kablam!    Compiling pdf_derive v0.1.16
Aug 02 02:34:30.374 INFO kablam!     Checking tuple v0.1.7
Aug 02 02:34:30.398 INFO kablam!     Checking error-chain v0.9.0
Aug 02 02:34:33.532 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 02:34:33.532 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/tuple-0.1.7/src/lib.rs:154:1
Aug 02 02:34:33.532 INFO kablam!     |
Aug 02 02:34:33.532 INFO kablam! 154 | #![feature(associated_consts)]
Aug 02 02:34:33.532 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 02:34:33.532 INFO kablam! 
Aug 02 02:34:33.532 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 02:34:33.532 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/tuple-0.1.7/src/lib.rs:155:1
Aug 02 02:34:33.532 INFO kablam!     |
Aug 02 02:34:33.532 INFO kablam! 155 | #![feature(trace_macros)]
Aug 02 02:34:33.533 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 02:34:33.533 INFO kablam! 
Aug 02 02:34:33.533 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 02:34:33.533 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/tuple-0.1.7/src/lib.rs:156:1
Aug 02 02:34:33.534 INFO kablam!     |
Aug 02 02:34:33.534 INFO kablam! 156 | #![feature(try_from)] 
Aug 02 02:34:33.534 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^
Aug 02 02:34:33.534 INFO kablam! 
Aug 02 02:34:33.534 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 02:34:33.534 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/tuple-0.1.7/src/lib.rs:157:1
Aug 02 02:34:33.534 INFO kablam!     |
Aug 02 02:34:33.534 INFO kablam! 157 | #![feature(slice_patterns)]
Aug 02 02:34:33.534 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 02:34:33.534 INFO kablam! 
Aug 02 02:34:33.535 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 02:34:33.535 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/tuple-0.1.7/src/lib.rs:158:1
Aug 02 02:34:33.535 INFO kablam!     |
Aug 02 02:34:33.535 INFO kablam! 158 | #![feature(cfg_target_feature)]
Aug 02 02:34:33.535 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 02:34:33.535 INFO kablam! 
Aug 02 02:34:33.623 INFO kablam! error: aborting due to 5 previous errors
Aug 02 02:34:33.623 INFO kablam! 
Aug 02 02:34:33.623 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 02:34:33.647 INFO kablam! error: Could not compile `tuple`.
Aug 02 02:34:33.647 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 02:34:38.054 INFO kablam! error: build failed
Aug 02 02:34:38.056 INFO kablam! su: No module specific data is present
Aug 02 02:34:38.926 INFO running `"docker" "rm" "-f" "4f39f1cb6a14428edb1479d1c082801cf52141cbe03227d64833e6351a1d22d9"`
Aug 02 02:34:39.076 INFO blam! 4f39f1cb6a14428edb1479d1c082801cf52141cbe03227d64833e6351a1d22d9