[INFO] fetching crate choir 0.7.0... [INFO] testing choir-0.7.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] extracting crate choir 0.7.0 into /workspace/builds/worker-5-tc1/source [INFO] started tweaking crates.io crate choir 0.7.0 [INFO] finished tweaking crates.io crate choir 0.7.0 [INFO] tweaked toml for crates.io crate choir 0.7.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate choir 0.7.0 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 80 packages to latest compatible versions [INFO] [stderr] Adding criterion v0.5.1 (available: v0.6.0) [INFO] [stderr] Adding env_logger v0.9.3 (available: v0.11.8) [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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c5e1e0ec7f01c625b290c7804d6783210a147aa8a7ac1f924cd01247c4982871 [INFO] running `Command { std: "docker" "start" "-a" "c5e1e0ec7f01c625b290c7804d6783210a147aa8a7ac1f924cd01247c4982871", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c5e1e0ec7f01c625b290c7804d6783210a147aa8a7ac1f924cd01247c4982871", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c5e1e0ec7f01c625b290c7804d6783210a147aa8a7ac1f924cd01247c4982871", kill_on_drop: false }` [INFO] [stdout] c5e1e0ec7f01c625b290c7804d6783210a147aa8a7ac1f924cd01247c4982871 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1e3d5b3f6ee6c6b9b5773e50bcb85a2ad04337859d4f09c1e2f9a027fe0a2399 [INFO] running `Command { std: "docker" "start" "-a" "1e3d5b3f6ee6c6b9b5773e50bcb85a2ad04337859d4f09c1e2f9a027fe0a2399", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.95 [INFO] [stderr] Compiling crossbeam-epoch v0.9.18 [INFO] [stderr] Compiling crossbeam-deque v0.8.6 [INFO] [stderr] Compiling quote v1.0.40 [INFO] [stderr] Compiling syn v2.0.104 [INFO] [stderr] Compiling profiling-procmacros v1.0.17 [INFO] [stderr] Compiling profiling v1.0.17 [INFO] [stderr] Compiling choir v0.7.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary qualification [INFO] [stdout] --> src/lib.rs:54:28 [INFO] [stdout] | [INFO] [stdout] 54 | const MAX_WORKERS: usize = mem::size_of::() * BITS_PER_BYTE; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 31 | unused_qualifications, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] help: remove the unnecessary path segments [INFO] [stdout] | [INFO] [stdout] 54 - const MAX_WORKERS: usize = mem::size_of::() * BITS_PER_BYTE; [INFO] [stdout] 54 + const MAX_WORKERS: usize = size_of::() * BITS_PER_BYTE; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:129:32 [INFO] [stdout] | [INFO] [stdout] 129 | pub fn fork>(&self, name: N) -> ProtoTask { [INFO] [stdout] | ^^^^^ --------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 129 | pub fn fork>(&self, name: N) -> ProtoTask<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: non-binding let on a synchronization lock [INFO] [stdout] --> src/lib.rs:709:17 [INFO] [stdout] | [INFO] [stdout] 709 | let _ = condvar.wait_while(guard, |cont| cont.is_some()); [INFO] [stdout] | ^ this lock is not assigned to a binding and is immediately dropped [INFO] [stdout] | [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] 709 | let _unused = condvar.wait_while(guard, |cont| cont.is_some()); [INFO] [stdout] | ++++++ [INFO] [stdout] help: consider immediately dropping the value [INFO] [stdout] | [INFO] [stdout] 709 - let _ = condvar.wait_while(guard, |cont| cont.is_some()); [INFO] [stdout] 709 + drop(condvar.wait_while(guard, |cont| cont.is_some())); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `choir` (lib) due to 1 previous error; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "1e3d5b3f6ee6c6b9b5773e50bcb85a2ad04337859d4f09c1e2f9a027fe0a2399", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1e3d5b3f6ee6c6b9b5773e50bcb85a2ad04337859d4f09c1e2f9a027fe0a2399", kill_on_drop: false }` [INFO] [stdout] 1e3d5b3f6ee6c6b9b5773e50bcb85a2ad04337859d4f09c1e2f9a027fe0a2399