[INFO] crate td_rthreadpool 0.1.2 is already in cache
[INFO] extracting crate td_rthreadpool 0.1.2 into work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/reg/td_rthreadpool/0.1.2
[INFO] extracting crate td_rthreadpool 0.1.2 into work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/reg/td_rthreadpool/0.1.2
[INFO] validating manifest of td_rthreadpool-0.1.2 on toolchain master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of td_rthreadpool-0.1.2 on toolchain try#bad365140e1e8233b42b21af70a407f14ce5fec5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing td_rthreadpool-0.1.2
[INFO] finished frobbing td_rthreadpool-0.1.2
[INFO] frobbed toml for td_rthreadpool-0.1.2 written to work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/reg/td_rthreadpool/0.1.2/Cargo.toml
[INFO] started frobbing td_rthreadpool-0.1.2
[INFO] finished frobbing td_rthreadpool-0.1.2
[INFO] frobbed toml for td_rthreadpool-0.1.2 written to work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/reg/td_rthreadpool/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking td_rthreadpool-0.1.2 against try#bad365140e1e8233b42b21af70a407f14ce5fec5 for pr-56896
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56896/worker-7/try#bad365140e1e8233b42b21af70a407f14ce5fec5:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/reg/td_rthreadpool/0.1.2:/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" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e7980b20b985f3ff5367ace0dbe88556910525d1b06010226b31b4523921d690
[INFO] running `"docker" "start" "-a" "e7980b20b985f3ff5367ace0dbe88556910525d1b06010226b31b4523921d690"`
[INFO] [stderr]     Checking td_rthreadpool v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> tests/test.rs:3:19
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::thread::{self, sleep};
[INFO] [stderr]   |                   ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/test.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut pool = ThreadPool::new(TEST_TASKS);
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]   --> tests/test.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |             1 + 1;
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `"docker" "inspect" "e7980b20b985f3ff5367ace0dbe88556910525d1b06010226b31b4523921d690"`
[INFO] running `"docker" "rm" "-f" "e7980b20b985f3ff5367ace0dbe88556910525d1b06010226b31b4523921d690"`
[INFO] [stdout] e7980b20b985f3ff5367ace0dbe88556910525d1b06010226b31b4523921d690