Dec 19 17:48:09.036 INFO checking drakemain/rust-web-server against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 17:48:09.036 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/drakemain/rust-web-server:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 17:48:09.219 INFO [stdout] 7b9098a8d20d13f636d4e17dd570feadd09e4b201c8aff40c585bdbabdfbb484
Dec 19 17:48:09.222 INFO running `"docker" "start" "-a" "7b9098a8d20d13f636d4e17dd570feadd09e4b201c8aff40c585bdbabdfbb484"`
Dec 19 17:48:09.748 INFO [stderr]     Checking webserver v0.1.0 (/opt/crater/workdir)
Dec 19 17:48:09.952 INFO [stderr] warning: field is never used: `workers`
Dec 19 17:48:09.952 INFO [stderr]  --> src/lib.rs:7:3
Dec 19 17:48:09.952 INFO [stderr]   |
Dec 19 17:48:09.952 INFO [stderr] 7 |   workers: Vec<Worker>,
Dec 19 17:48:09.952 INFO [stderr]   |   ^^^^^^^^^^^^^^^^^^^^
Dec 19 17:48:09.952 INFO [stderr]   |
Dec 19 17:48:09.952 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 17:48:09.952 INFO [stderr] 
Dec 19 17:48:09.952 INFO [stderr] warning: field is never used: `id`
Dec 19 17:48:09.952 INFO [stderr]   --> src/lib.rs:12:3
Dec 19 17:48:09.952 INFO [stderr]    |
Dec 19 17:48:09.952 INFO [stderr] 12 |   id: usize,
Dec 19 17:48:09.952 INFO [stderr]    |   ^^^^^^^^^
Dec 19 17:48:09.952 INFO [stderr] 
Dec 19 17:48:09.952 INFO [stderr] warning: field is never used: `thread`
Dec 19 17:48:09.952 INFO [stderr]   --> src/lib.rs:13:3
Dec 19 17:48:09.952 INFO [stderr]    |
Dec 19 17:48:09.952 INFO [stderr] 13 |   thread: thread::JoinHandle<()>
Dec 19 17:48:09.952 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:48:09.952 INFO [stderr] 
Dec 19 17:48:09.957 INFO [stderr] warning: field is never used: `workers`
Dec 19 17:48:09.958 INFO [stderr]  --> src/lib.rs:7:3
Dec 19 17:48:09.958 INFO [stderr]   |
Dec 19 17:48:09.958 INFO [stderr] 7 |   workers: Vec<Worker>,
Dec 19 17:48:09.958 INFO [stderr]   |   ^^^^^^^^^^^^^^^^^^^^
Dec 19 17:48:09.958 INFO [stderr]   |
Dec 19 17:48:09.958 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 17:48:09.958 INFO [stderr] 
Dec 19 17:48:09.958 INFO [stderr] warning: field is never used: `id`
Dec 19 17:48:09.958 INFO [stderr]   --> src/lib.rs:12:3
Dec 19 17:48:09.958 INFO [stderr]    |
Dec 19 17:48:09.958 INFO [stderr] 12 |   id: usize,
Dec 19 17:48:09.958 INFO [stderr]    |   ^^^^^^^^^
Dec 19 17:48:09.958 INFO [stderr] 
Dec 19 17:48:09.964 INFO [stderr] warning: field is never used: `thread`
Dec 19 17:48:09.964 INFO [stderr]   --> src/lib.rs:13:3
Dec 19 17:48:09.964 INFO [stderr]    |
Dec 19 17:48:09.964 INFO [stderr] 13 |   thread: thread::JoinHandle<()>
Dec 19 17:48:09.964 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:48:09.964 INFO [stderr] 
Dec 19 17:48:10.182 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
Dec 19 17:48:10.388 INFO running `"docker" "inspect" "7b9098a8d20d13f636d4e17dd570feadd09e4b201c8aff40c585bdbabdfbb484"`
Dec 19 17:48:10.510 INFO running `"docker" "rm" "-f" "7b9098a8d20d13f636d4e17dd570feadd09e4b201c8aff40c585bdbabdfbb484"`
Dec 19 17:48:10.593 INFO [stdout] 7b9098a8d20d13f636d4e17dd570feadd09e4b201c8aff40c585bdbabdfbb484