[INFO] crate threader 0.0.4 is already in cache
[INFO] checking threader-0.0.4 against master#6d69caba110c0c2fb90180df1cbc8be5033b91d4 for pr-69530
[INFO] extracting crate threader 0.0.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate threader 0.0.4 on toolchain 6d69caba110c0c2fb90180df1cbc8be5033b91d4
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate threader 0.0.4
[INFO] finished tweaking crates.io crate threader 0.0.4
[INFO] tweaked toml for crates.io crate threader 0.0.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2727f47cb04b834e9e1eecec45f6191ba938070e8049882aab26f49edcc1c34e
[INFO] running `"docker" "start" "-a" "2727f47cb04b834e9e1eecec45f6191ba938070e8049882aab26f49edcc1c34e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking serde_json v1.0.52
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking flame v0.2.2
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking threader v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `ptr`
[INFO] [stderr]  --> src/thread_pool/task/raw.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     ptr,
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `InvalidGuard`
[INFO] [stderr]  --> src/thread_pool/task/mod.rs:6:19
[INFO] [stderr]   |
[INFO] [stderr] 6 | use raw::{Header, InvalidGuard, RawTask};
[INFO] [stderr]   |                   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ptr`
[INFO] [stderr]  --> src/thread_pool/task/raw.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     ptr,
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `InvalidGuard`
[INFO] [stderr]  --> src/thread_pool/task/mod.rs:6:19
[INFO] [stderr]   |
[INFO] [stderr] 6 | use raw::{Header, InvalidGuard, RawTask};
[INFO] [stderr]   |                   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `try_clone`
[INFO] [stderr]    --> src/net/tcp.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     fn try_clone(&self) -> io::Result<TcpStream> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `count`
[INFO] [stderr]   --> src/thread_pool/mod.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     count: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `try_clone`
[INFO] [stderr]    --> src/net/tcp.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     fn try_clone(&self) -> io::Result<TcpStream> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `count`
[INFO] [stderr]   --> src/thread_pool/mod.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     count: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.23s
[INFO] running `"docker" "inspect" "2727f47cb04b834e9e1eecec45f6191ba938070e8049882aab26f49edcc1c34e"`
[INFO] running `"docker" "rm" "-f" "2727f47cb04b834e9e1eecec45f6191ba938070e8049882aab26f49edcc1c34e"`
[INFO] [stdout] 2727f47cb04b834e9e1eecec45f6191ba938070e8049882aab26f49edcc1c34e