Oct 13 01:25:59.644 INFO checking alexcrichton/cancelbot against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 13 01:25:59.646 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-6/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 13 01:26:00.136 INFO blam! b52d38e2f3aaa79d21938222620b65a9755772e0679254cf0395c69d31d78087
Oct 13 01:26:00.138 INFO running `"docker" "start" "-a" "b52d38e2f3aaa79d21938222620b65a9755772e0679254cf0395c69d31d78087"`
Oct 13 01:26:01.819 INFO kablam! usermod: no changes
Oct 13 01:26:02.033 INFO kablam!    Compiling libz-sys v1.0.12
Oct 13 01:26:02.034 INFO kablam!    Compiling curl-sys v0.3.7
Oct 13 01:26:02.044 INFO kablam!     Checking backtrace-sys v0.1.5
Oct 13 01:26:03.085 INFO kablam!     Checking backtrace v0.2.3
Oct 13 01:26:04.837 INFO kablam!     Checking error-chain v0.5.0
Oct 13 01:26:07.484 INFO kablam!     Checking curl v0.4.4
Oct 13 01:26:08.982 INFO kablam!     Checking tokio-curl v0.1.9
Oct 13 01:26:10.340 INFO kablam!     Checking cancelbot v0.1.0 (/source)
Oct 13 01:26:13.653 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 11.81s
Oct 13 01:26:13.666 INFO kablam! su: No module specific data is present
Oct 13 01:26:14.982 INFO running `"docker" "rm" "-f" "b52d38e2f3aaa79d21938222620b65a9755772e0679254cf0395c69d31d78087"`
Oct 13 01:26:15.292 INFO blam! b52d38e2f3aaa79d21938222620b65a9755772e0679254cf0395c69d31d78087