Dec 15 15:08:56.983 INFO testing fe_session-0.5.0 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 15 15:08:56.983 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-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"`
Dec 15 15:08:57.223 INFO [stdout] 560fe9f35bf4547c19dfe68f0650df324e39dff84467931320c3c384c5e52a75
Dec 15 15:08:57.225 INFO running `"docker" "start" "-a" "560fe9f35bf4547c19dfe68f0650df324e39dff84467931320c3c384c5e52a75"`
Dec 15 15:08:57.645 INFO [stderr] usermod: no changes
Dec 15 15:08:57.797 INFO [stderr]    Compiling hyper v0.8.1
Dec 15 15:08:57.802 INFO [stderr]    Compiling hyper v0.9.18
Dec 15 15:09:07.314 INFO [stderr]    Compiling iron v0.3.1
Dec 15 15:09:07.823 INFO [stderr]    Compiling iron v0.4.0
Dec 15 15:09:12.515 INFO [stderr]    Compiling oven v0.3.0
Dec 15 15:09:16.065 INFO [stderr]    Compiling fe_session v0.5.0 (/source)
Dec 15 15:09:19.044 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.38s
Dec 15 15:09:19.051 INFO [stderr] su: No module specific data is present
Dec 15 15:09:19.365 INFO running `"docker" "inspect" "560fe9f35bf4547c19dfe68f0650df324e39dff84467931320c3c384c5e52a75"`
Dec 15 15:09:19.456 INFO running `"docker" "rm" "-f" "560fe9f35bf4547c19dfe68f0650df324e39dff84467931320c3c384c5e52a75"`
Dec 15 15:09:19.575 INFO [stdout] 560fe9f35bf4547c19dfe68f0650df324e39dff84467931320c3c384c5e52a75
Dec 15 15:09:19.578 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-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"`
Dec 15 15:09:19.843 INFO [stdout] 01489bf79275edbc190fa7b78af11105c1073eb1e161dac25f4551c5b52b0dff
Dec 15 15:09:19.845 INFO running `"docker" "start" "-a" "01489bf79275edbc190fa7b78af11105c1073eb1e161dac25f4551c5b52b0dff"`
Dec 15 15:09:20.359 INFO [stderr] usermod: no changes
Dec 15 15:09:20.477 INFO [stderr]    Compiling fe_session v0.5.0 (/source)
Dec 15 15:09:24.549 INFO [stderr] warning: unused import: `std::io::Read`
Dec 15 15:09:24.549 INFO [stderr]   --> tests/lib.rs:19:5
Dec 15 15:09:24.549 INFO [stderr]    |
Dec 15 15:09:24.549 INFO [stderr] 19 | use std::io::Read;
Dec 15 15:09:24.549 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 15 15:09:24.549 INFO [stderr]    |
Dec 15 15:09:24.549 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 15 15:09:24.549 INFO [stderr] 
Dec 15 15:09:27.686 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.31s
Dec 15 15:09:27.695 INFO [stderr] su: No module specific data is present
Dec 15 15:09:28.350 INFO running `"docker" "inspect" "01489bf79275edbc190fa7b78af11105c1073eb1e161dac25f4551c5b52b0dff"`
Dec 15 15:09:28.648 INFO running `"docker" "rm" "-f" "01489bf79275edbc190fa7b78af11105c1073eb1e161dac25f4551c5b52b0dff"`
Dec 15 15:09:28.783 INFO [stdout] 01489bf79275edbc190fa7b78af11105c1073eb1e161dac25f4551c5b52b0dff