Dec 04 22:50:21.935 INFO checking alexcrichton/l4c against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 22:50:21.935 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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"`
Dec 04 22:50:22.863 INFO [stdout] 886cd664824719b86a552ef82b19d466fa1872bb75e0a86c234b2d491dded167
Dec 04 22:50:22.865 INFO running `"docker" "start" "-a" "886cd664824719b86a552ef82b19d466fa1872bb75e0a86c234b2d491dded167"`
Dec 04 22:50:23.817 INFO [stderr] usermod: no changes
Dec 04 22:50:23.919 INFO [stderr]     Checking log v0.4.5
Dec 04 22:50:23.921 INFO [stderr]     Checking driver v0.1.0 (/source/driver)
Dec 04 22:50:25.309 INFO [stderr] warning: field is never used: `retry`
Dec 04 22:50:25.309 INFO [stderr]   --> driver/src/main.rs:33:5
Dec 04 22:50:25.309 INFO [stderr]    |
Dec 04 22:50:25.309 INFO [stderr] 33 |     retry: bool,
Dec 04 22:50:25.309 INFO [stderr]    |     ^^^^^^^^^^^
Dec 04 22:50:25.309 INFO [stderr]    |
Dec 04 22:50:25.309 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 22:50:25.309 INFO [stderr] 
Dec 04 22:50:25.359 INFO [stderr]     Checking env_logger v0.5.13
Dec 04 22:50:25.491 INFO [stderr] warning: field is never used: `retry`
Dec 04 22:50:25.491 INFO [stderr]   --> driver/src/main.rs:33:5
Dec 04 22:50:25.491 INFO [stderr]    |
Dec 04 22:50:25.491 INFO [stderr] 33 |     retry: bool,
Dec 04 22:50:25.491 INFO [stderr]    |     ^^^^^^^^^^^
Dec 04 22:50:25.491 INFO [stderr]    |
Dec 04 22:50:25.491 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 22:50:25.491 INFO [stderr] 
Dec 04 22:50:26.355 INFO [stderr]     Checking l4c v0.0.0 (/source)
Dec 04 22:50:29.359 INFO [stderr] warning: unused import: `Display`
Dec 04 22:50:29.360 INFO [stderr]  --> src/front/pp.rs:1:16
Dec 04 22:50:29.360 INFO [stderr]   |
Dec 04 22:50:29.360 INFO [stderr] 1 | use std::fmt::{Display, Write};
Dec 04 22:50:29.360 INFO [stderr]   |                ^^^^^^^
Dec 04 22:50:29.360 INFO [stderr]   |
Dec 04 22:50:29.360 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 22:50:29.360 INFO [stderr] 
Dec 04 22:50:30.390 INFO [stderr] warning: unused import: `Display`
Dec 04 22:50:30.390 INFO [stderr]  --> src/front/pp.rs:1:16
Dec 04 22:50:30.390 INFO [stderr]   |
Dec 04 22:50:30.390 INFO [stderr] 1 | use std::fmt::{Display, Write};
Dec 04 22:50:30.390 INFO [stderr]   |                ^^^^^^^
Dec 04 22:50:30.390 INFO [stderr]   |
Dec 04 22:50:30.390 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 22:50:30.390 INFO [stderr] 
Dec 04 22:50:31.903 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.06s
Dec 04 22:50:31.908 INFO [stderr] su: No module specific data is present
Dec 04 22:50:32.794 INFO running `"docker" "inspect" "886cd664824719b86a552ef82b19d466fa1872bb75e0a86c234b2d491dded167"`
Dec 04 22:50:33.069 INFO running `"docker" "rm" "-f" "886cd664824719b86a552ef82b19d466fa1872bb75e0a86c234b2d491dded167"`
Dec 04 22:50:33.479 INFO [stdout] 886cd664824719b86a552ef82b19d466fa1872bb75e0a86c234b2d491dded167