Dec 11 22:51:43.249 INFO checking alexcrichton/l4c against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 22:51:43.249 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 11 22:51:44.090 INFO [stdout] 7dec38ab6b21b863624866c3eced81beb1e26017758288262c5a9669233aac21
Dec 11 22:51:44.092 INFO running `"docker" "start" "-a" "7dec38ab6b21b863624866c3eced81beb1e26017758288262c5a9669233aac21"`
Dec 11 22:51:46.399 INFO [stderr] usermod: no changes
Dec 11 22:51:46.534 INFO [stderr]     Checking log v0.4.5
Dec 11 22:51:46.534 INFO [stderr]     Checking wait-timeout v0.1.5
Dec 11 22:51:47.626 INFO [stderr]     Checking driver v0.1.0 (/source/driver)
Dec 11 22:51:47.725 INFO [stderr]     Checking env_logger v0.5.13
Dec 11 22:51:49.640 INFO [stderr] warning: field is never used: `retry`
Dec 11 22:51:49.640 INFO [stderr]   --> driver/src/main.rs:33:5
Dec 11 22:51:49.640 INFO [stderr]    |
Dec 11 22:51:49.640 INFO [stderr] 33 |     retry: bool,
Dec 11 22:51:49.640 INFO [stderr]    |     ^^^^^^^^^^^
Dec 11 22:51:49.640 INFO [stderr]    |
Dec 11 22:51:49.640 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 22:51:49.640 INFO [stderr] 
Dec 11 22:51:49.872 INFO [stderr] warning: field is never used: `retry`
Dec 11 22:51:49.873 INFO [stderr]   --> driver/src/main.rs:33:5
Dec 11 22:51:49.873 INFO [stderr]    |
Dec 11 22:51:49.873 INFO [stderr] 33 |     retry: bool,
Dec 11 22:51:49.874 INFO [stderr]    |     ^^^^^^^^^^^
Dec 11 22:51:49.874 INFO [stderr]    |
Dec 11 22:51:49.874 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 22:51:49.875 INFO [stderr] 
Dec 11 22:51:50.010 INFO [stderr]     Checking l4c v0.0.0 (/source)
Dec 11 22:51:54.528 INFO [stderr] warning: unused import: `Display`
Dec 11 22:51:54.528 INFO [stderr]  --> src/front/pp.rs:1:16
Dec 11 22:51:54.529 INFO [stderr]   |
Dec 11 22:51:54.529 INFO [stderr] 1 | use std::fmt::{Display, Write};
Dec 11 22:51:54.529 INFO [stderr]   |                ^^^^^^^
Dec 11 22:51:54.529 INFO [stderr]   |
Dec 11 22:51:54.530 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 22:51:54.530 INFO [stderr] 
Dec 11 22:51:54.764 INFO [stderr] warning: unused import: `Display`
Dec 11 22:51:54.764 INFO [stderr]  --> src/front/pp.rs:1:16
Dec 11 22:51:54.764 INFO [stderr]   |
Dec 11 22:51:54.764 INFO [stderr] 1 | use std::fmt::{Display, Write};
Dec 11 22:51:54.764 INFO [stderr]   |                ^^^^^^^
Dec 11 22:51:54.764 INFO [stderr]   |
Dec 11 22:51:54.764 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 22:51:54.764 INFO [stderr] 
Dec 11 22:51:56.860 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.41s
Dec 11 22:51:56.860 INFO [stderr] su: No module specific data is present
Dec 11 22:51:57.920 INFO running `"docker" "inspect" "7dec38ab6b21b863624866c3eced81beb1e26017758288262c5a9669233aac21"`
Dec 11 22:51:58.192 INFO running `"docker" "rm" "-f" "7dec38ab6b21b863624866c3eced81beb1e26017758288262c5a9669233aac21"`
Dec 11 22:51:58.549 INFO [stdout] 7dec38ab6b21b863624866c3eced81beb1e26017758288262c5a9669233aac21