Oct 27 02:37:34.551 INFO checking jtdowney/b2sum-rs against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192-2
Oct 27 02:37:34.553 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-4/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-55192-2/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-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 27 02:37:35.050 INFO blam! 1e3dfc9f14d29b72251c2ac533347fb308493ffb2f8385dbe37be7a5d37d1adb
Oct 27 02:37:35.052 INFO running `"docker" "start" "-a" "1e3dfc9f14d29b72251c2ac533347fb308493ffb2f8385dbe37be7a5d37d1adb"`
Oct 27 02:37:36.562 INFO kablam! usermod: no changes
Oct 27 02:37:36.739 INFO kablam!    Compiling gcc v0.3.48
Oct 27 02:37:36.755 INFO kablam!     Checking blake2-rfc v0.2.17
Oct 27 02:37:36.755 INFO kablam!     Checking docopt v0.7.0
Oct 27 02:37:41.313 INFO kablam!    Compiling backtrace-sys v0.1.11
Oct 27 02:37:55.923 INFO kablam!     Checking backtrace v0.3.2
Oct 27 02:37:56.539 INFO kablam!     Checking error-chain v0.10.0
Oct 27 02:37:57.369 INFO kablam!     Checking b2sum v0.2.0 (/source)
Oct 27 02:37:59.197 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 22.60s
Oct 27 02:37:59.202 INFO kablam! su: No module specific data is present
Oct 27 02:38:00.476 INFO running `"docker" "rm" "-f" "1e3dfc9f14d29b72251c2ac533347fb308493ffb2f8385dbe37be7a5d37d1adb"`
Oct 27 02:38:00.780 INFO blam! 1e3dfc9f14d29b72251c2ac533347fb308493ffb2f8385dbe37be7a5d37d1adb