[INFO] fetching crate choir 0.7.0... [INFO] testing choir-0.7.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1 [INFO] extracting crate choir 0.7.0 into /workspace/builds/worker-5-tc2/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-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate choir 0.7.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 91 packages to latest compatible versions [INFO] [stderr] Adding criterion v0.5.1 (available: v0.7.0) [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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2279940b3eb89f224714b62367bbf1f73f0c14e786c9c1e3c13c6656d995b4b0 [INFO] running `Command { std: "docker" "start" "-a" "2279940b3eb89f224714b62367bbf1f73f0c14e786c9c1e3c13c6656d995b4b0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2279940b3eb89f224714b62367bbf1f73f0c14e786c9c1e3c13c6656d995b4b0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2279940b3eb89f224714b62367bbf1f73f0c14e786c9c1e3c13c6656d995b4b0", kill_on_drop: false }` [INFO] [stdout] 2279940b3eb89f224714b62367bbf1f73f0c14e786c9c1e3c13c6656d995b4b0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 50acd699362bfb54fb15a5d1144f76f808f4cab221bf5df9f67c6ee0120dc411 [INFO] running `Command { std: "docker" "start" "-a" "50acd699362bfb54fb15a5d1144f76f808f4cab221bf5df9f67c6ee0120dc411", kill_on_drop: false }` [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling crossbeam-epoch v0.9.18 [INFO] [stderr] Compiling crossbeam-deque v0.8.6 [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: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:129:32 [INFO] [stdout] | [INFO] [stdout] 129 | pub fn fork>(&self, name: N) -> ProtoTask { [INFO] [stdout] | ^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type 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)]` (part of `#[deny(let_underscore)]`) 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" "50acd699362bfb54fb15a5d1144f76f808f4cab221bf5df9f67c6ee0120dc411", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "50acd699362bfb54fb15a5d1144f76f808f4cab221bf5df9f67c6ee0120dc411", kill_on_drop: false }` [INFO] [stdout] 50acd699362bfb54fb15a5d1144f76f808f4cab221bf5df9f67c6ee0120dc411