Nov 01 02:54:34.110 INFO checking jtdowney/b2sum-rs against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 02:54:34.112 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-3/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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"`
Nov 01 02:54:34.594 INFO blam! 16064302d63a12944a4d1bb4de3f97e20bf11b63e0faea6458055408e0ad39fa
Nov 01 02:54:34.608 INFO running `"docker" "start" "-a" "16064302d63a12944a4d1bb4de3f97e20bf11b63e0faea6458055408e0ad39fa"`
Nov 01 02:54:36.191 INFO kablam! usermod: no changes
Nov 01 02:54:36.308 INFO kablam!    Compiling gcc v0.3.48
Nov 01 02:54:36.308 INFO kablam!     Checking blake2-rfc v0.2.17
Nov 01 02:54:36.308 INFO kablam!     Checking docopt v0.7.0
Nov 01 02:54:40.214 INFO kablam!    Compiling backtrace-sys v0.1.11
Nov 01 02:54:56.409 INFO kablam!     Checking backtrace v0.3.2
Nov 01 02:54:57.053 INFO kablam!     Checking error-chain v0.10.0
Nov 01 02:54:57.825 INFO kablam!     Checking b2sum v0.2.0 (/source)
Nov 01 02:54:59.949 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 23.74s
Nov 01 02:54:59.955 INFO kablam! su: No module specific data is present
Nov 01 02:55:01.532 INFO running `"docker" "rm" "-f" "16064302d63a12944a4d1bb4de3f97e20bf11b63e0faea6458055408e0ad39fa"`
Nov 01 02:55:01.805 INFO blam! 16064302d63a12944a4d1bb4de3f97e20bf11b63e0faea6458055408e0ad39fa