[INFO] fetching crate secc 0.0.10...
[INFO] testing secc-0.0.10 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate secc 0.0.10 into /workspace/builds/worker-0-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-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate secc 0.0.10 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 321b544f8b8a063f272333b0ce04c4e80ec89b7b38f2a7e5705b7c1f9881e2d9
[INFO] running `Command { std: "docker" "start" "-a" "321b544f8b8a063f272333b0ce04c4e80ec89b7b38f2a7e5705b7c1f9881e2d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "321b544f8b8a063f272333b0ce04c4e80ec89b7b38f2a7e5705b7c1f9881e2d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "321b544f8b8a063f272333b0ce04c4e80ec89b7b38f2a7e5705b7c1f9881e2d9", kill_on_drop: false }`
[INFO] [stdout] 321b544f8b8a063f272333b0ce04c4e80ec89b7b38f2a7e5705b7c1f9881e2d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 61710d73ac42d3f727505e04755f48d2f4b749085d8ff4956ff9239bb2bf8e18
[INFO] running `Command { std: "docker" "start" "-a" "61710d73ac42d3f727505e04755f48d2f4b749085d8ff4956ff9239bb2bf8e18", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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] running `Command { std: "docker" "inspect" "61710d73ac42d3f727505e04755f48d2f4b749085d8ff4956ff9239bb2bf8e18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61710d73ac42d3f727505e04755f48d2f4b749085d8ff4956ff9239bb2bf8e18", kill_on_drop: false }`
[INFO] [stdout] 61710d73ac42d3f727505e04755f48d2f4b749085d8ff4956ff9239bb2bf8e18