[INFO] fetching crate secc 0.0.10...
[INFO] checking secc-0.0.10 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate secc 0.0.10 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate secc 0.0.10
[INFO] finished tweaking crates.io crate secc 0.0.10
[INFO] tweaked toml for crates.io crate secc 0.0.10 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate secc 0.0.10 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00d2d1a2d362d9e36ef39fdc1fb9a5ae9e20095c9691e2c6a4c570ddb3e7ec65
[INFO] running `Command { std: "docker" "start" "-a" "00d2d1a2d362d9e36ef39fdc1fb9a5ae9e20095c9691e2c6a4c570ddb3e7ec65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00d2d1a2d362d9e36ef39fdc1fb9a5ae9e20095c9691e2c6a4c570ddb3e7ec65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00d2d1a2d362d9e36ef39fdc1fb9a5ae9e20095c9691e2c6a4c570ddb3e7ec65", kill_on_drop: false }`
[INFO] [stdout] 00d2d1a2d362d9e36ef39fdc1fb9a5ae9e20095c9691e2c6a4c570ddb3e7ec65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0dedef66a530804c60deb65994492576cfecd8245351b798f741c577f777976a
[INFO] running `Command { std: "docker" "start" "-a" "0dedef66a530804c60deb65994492576cfecd8245351b798f741c577f777976a", kill_on_drop: false }`
[INFO] [stderr]     Checking secc v0.0.10 (/opt/rustwide/workdir)
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]    --> src/lib.rs:363:26
[INFO] [stdout]     |
[INFO] [stdout] 363 |                     let (_, result) = condvar.wait_timeout(receive_ptrs, timeout).unwrap();
[INFO] [stdout]     |                          ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider immediately dropping the value using `drop(..)` after the `let` statement
[INFO] [stdout]     = note: `#[deny(let_underscore_lock)]` on by default
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 363 |                     let (_unused, result) = condvar.wait_timeout(receive_ptrs, timeout).unwrap();
[INFO] [stdout]     |                           ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]    --> src/lib.rs:563:26
[INFO] [stdout]     |
[INFO] [stdout] 563 |                     let (_, result) = condvar.wait_timeout(send_ptrs, timeout).unwrap();
[INFO] [stdout]     |                          ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider immediately dropping the value using `drop(..)` after the `let` statement
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 563 |                     let (_unused, result) = condvar.wait_timeout(send_ptrs, timeout).unwrap();
[INFO] [stdout]     |                           ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `secc` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]    --> src/lib.rs:363:26
[INFO] [stdout]     |
[INFO] [stdout] 363 |                     let (_, result) = condvar.wait_timeout(receive_ptrs, timeout).unwrap();
[INFO] [stdout]     |                          ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider immediately dropping the value using `drop(..)` after the `let` statement
[INFO] [stdout]     = note: `#[deny(let_underscore_lock)]` on by default
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 363 |                     let (_unused, result) = condvar.wait_timeout(receive_ptrs, timeout).unwrap();
[INFO] [stdout]     |                           ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]    --> src/lib.rs:563:26
[INFO] [stdout]     |
[INFO] [stdout] 563 |                     let (_, result) = condvar.wait_timeout(send_ptrs, timeout).unwrap();
[INFO] [stdout]     |                          ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider immediately dropping the value using `drop(..)` after the `let` statement
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 563 |                     let (_unused, result) = condvar.wait_timeout(send_ptrs, timeout).unwrap();
[INFO] [stdout]     |                           ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `secc` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "0dedef66a530804c60deb65994492576cfecd8245351b798f741c577f777976a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dedef66a530804c60deb65994492576cfecd8245351b798f741c577f777976a", kill_on_drop: false }`
[INFO] [stdout] 0dedef66a530804c60deb65994492576cfecd8245351b798f741c577f777976a