Nov 06 19:44:10.096 INFO checking jtdowney/b2sum-rs against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 06 19:44:10.097 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-4/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/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 +24e66c28980442a48d9458f1a4f9b76cc722dc8a-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 06 19:44:10.568 INFO blam! 74a76e9b245cbe68428f0ab9644a31622958489c01682a3ab0b8cfac2abfc638
Nov 06 19:44:10.571 INFO running `"docker" "start" "-a" "74a76e9b245cbe68428f0ab9644a31622958489c01682a3ab0b8cfac2abfc638"`
Nov 06 19:44:12.673 INFO kablam! usermod: no changes
Nov 06 19:44:12.889 INFO kablam!    Compiling gcc v0.3.48
Nov 06 19:44:12.904 INFO kablam!     Checking constant_time_eq v0.1.2
Nov 06 19:44:12.956 INFO kablam!     Checking docopt v0.7.0
Nov 06 19:44:13.604 INFO kablam!     Checking blake2-rfc v0.2.17
Nov 06 19:44:17.321 INFO kablam!    Compiling backtrace-sys v0.1.11
Nov 06 19:44:32.256 INFO kablam!     Checking backtrace v0.3.2
Nov 06 19:44:32.848 INFO kablam!     Checking error-chain v0.10.0
Nov 06 19:44:33.680 INFO kablam!     Checking b2sum v0.2.0 (/source)
Nov 06 19:44:35.542 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 22.84s
Nov 06 19:44:35.552 INFO kablam! su: No module specific data is present
Nov 06 19:44:36.465 INFO running `"docker" "rm" "-f" "74a76e9b245cbe68428f0ab9644a31622958489c01682a3ab0b8cfac2abfc638"`
Nov 06 19:44:36.837 INFO blam! 74a76e9b245cbe68428f0ab9644a31622958489c01682a3ab0b8cfac2abfc638