[INFO] cloning repository https://github.com/imhassane/thread_rust_multiplier [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/imhassane/thread_rust_multiplier" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimhassane%2Fthread_rust_multiplier", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimhassane%2Fthread_rust_multiplier'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 681ed6d5142d27b2258c2a43643be9b218b5ebb9 [INFO] testing imhassane/thread_rust_multiplier against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimhassane%2Fthread_rust_multiplier" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/imhassane/thread_rust_multiplier on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/imhassane/thread_rust_multiplier [INFO] finished tweaking git repo https://github.com/imhassane/thread_rust_multiplier [INFO] tweaked toml for git repo https://github.com/imhassane/thread_rust_multiplier written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/imhassane/thread_rust_multiplier already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6387c93d0b96090fc3bc71178956e044651f2016e3951be7f79c6d5ec59cb289 [INFO] running `Command { std: "docker" "start" "-a" "6387c93d0b96090fc3bc71178956e044651f2016e3951be7f79c6d5ec59cb289", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6387c93d0b96090fc3bc71178956e044651f2016e3951be7f79c6d5ec59cb289", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6387c93d0b96090fc3bc71178956e044651f2016e3951be7f79c6d5ec59cb289", kill_on_drop: false }` [INFO] [stdout] 6387c93d0b96090fc3bc71178956e044651f2016e3951be7f79c6d5ec59cb289 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4f5fbc2d9707cbce381ae972c23d496e5f2eb9b481c81af9b0a71167f843e089 [INFO] running `Command { std: "docker" "start" "-a" "4f5fbc2d9707cbce381ae972c23d496e5f2eb9b481c81af9b0a71167f843e089", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.67 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling ppv-lite86 v0.2.6 [INFO] [stderr] Compiling c2-chacha v0.2.3 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling rev1 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:75:13 [INFO] [stdout] | [INFO] [stdout] 75 | let mut prod = lock.lock().unwrap(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `MutexGuard` that must be used [INFO] [stdout] --> src/main.rs:68:17 [INFO] [stdout] | [INFO] [stdout] 68 | cvar.wait(prod).unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if unused the Mutex will immediately unlock [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `MutexGuard` that must be used [INFO] [stdout] --> src/main.rs:82:17 [INFO] [stdout] | [INFO] [stdout] 82 | cvar.wait(prod).unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if unused the Mutex will immediately unlock [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.48s [INFO] running `Command { std: "docker" "inspect" "4f5fbc2d9707cbce381ae972c23d496e5f2eb9b481c81af9b0a71167f843e089", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4f5fbc2d9707cbce381ae972c23d496e5f2eb9b481c81af9b0a71167f843e089", kill_on_drop: false }` [INFO] [stdout] 4f5fbc2d9707cbce381ae972c23d496e5f2eb9b481c81af9b0a71167f843e089 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e3011ab960c3fdd30dc4907f3835d6c9616e527ec07754d7fd913f60012ee703 [INFO] running `Command { std: "docker" "start" "-a" "e3011ab960c3fdd30dc4907f3835d6c9616e527ec07754d7fd913f60012ee703", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling rev1 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:75:13 [INFO] [stdout] | [INFO] [stdout] 75 | let mut prod = lock.lock().unwrap(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `MutexGuard` that must be used [INFO] [stdout] --> src/main.rs:68:17 [INFO] [stdout] | [INFO] [stdout] 68 | cvar.wait(prod).unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if unused the Mutex will immediately unlock [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `MutexGuard` that must be used [INFO] [stdout] --> src/main.rs:82:17 [INFO] [stdout] | [INFO] [stdout] 82 | cvar.wait(prod).unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if unused the Mutex will immediately unlock [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.03s [INFO] running `Command { std: "docker" "inspect" "e3011ab960c3fdd30dc4907f3835d6c9616e527ec07754d7fd913f60012ee703", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e3011ab960c3fdd30dc4907f3835d6c9616e527ec07754d7fd913f60012ee703", kill_on_drop: false }` [INFO] [stdout] e3011ab960c3fdd30dc4907f3835d6c9616e527ec07754d7fd913f60012ee703 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] ec8f7e8201aa46c67f706ae36c70d1556f2dd2406011b15f4e97d206d68a5816 [INFO] running `Command { std: "docker" "start" "-a" "ec8f7e8201aa46c67f706ae36c70d1556f2dd2406011b15f4e97d206d68a5816", kill_on_drop: false }` [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:75:13 [INFO] [stderr] | [INFO] [stderr] 75 | let mut prod = lock.lock().unwrap(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `MutexGuard` that must be used [INFO] [stderr] --> src/main.rs:68:17 [INFO] [stderr] | [INFO] [stderr] 68 | cvar.wait(prod).unwrap(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if unused the Mutex will immediately unlock [INFO] [stderr] [INFO] [stderr] warning: unused `MutexGuard` that must be used [INFO] [stderr] --> src/main.rs:82:17 [INFO] [stderr] | [INFO] [stderr] 82 | cvar.wait(prod).unwrap(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if unused the Mutex will immediately unlock [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rev1-c90216b986a3a9f0) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "ec8f7e8201aa46c67f706ae36c70d1556f2dd2406011b15f4e97d206d68a5816", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec8f7e8201aa46c67f706ae36c70d1556f2dd2406011b15f4e97d206d68a5816", kill_on_drop: false }` [INFO] [stdout] ec8f7e8201aa46c67f706ae36c70d1556f2dd2406011b15f4e97d206d68a5816