[INFO] fetching crate bit_field 0.10.1...
[INFO] checking bit_field-0.10.1 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate bit_field 0.10.1 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate bit_field 0.10.1 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bit_field 0.10.1
[INFO] finished tweaking crates.io crate bit_field 0.10.1
[INFO] tweaked toml for crates.io crate bit_field 0.10.1 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80bbe44c2254900453b8e0aabb5a6fa4b7095f253846281f3d970f9826f90176
[INFO] running `Command { std: "docker" "start" "-a" "80bbe44c2254900453b8e0aabb5a6fa4b7095f253846281f3d970f9826f90176", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80bbe44c2254900453b8e0aabb5a6fa4b7095f253846281f3d970f9826f90176", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80bbe44c2254900453b8e0aabb5a6fa4b7095f253846281f3d970f9826f90176", kill_on_drop: false }`
[INFO] [stdout] 80bbe44c2254900453b8e0aabb5a6fa4b7095f253846281f3d970f9826f90176
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fee3be9c4a6c0842aaef161d47767e740b0a4ff86738dbce91050f19a5c52a27
[INFO] running `Command { std: "docker" "start" "-a" "fee3be9c4a6c0842aaef161d47767e740b0a4ff86738dbce91050f19a5c52a27", kill_on_drop: false }`
[INFO] [stderr]     Checking bit_field v0.10.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> benches/bench.rs:114:43
[INFO] [stdout]     |
[INFO] [stdout] 114 |         v.as_mut_slice().set_bit(i, true);;
[INFO] [stdout]     |                                           ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/tests.rs:360:5
[INFO] [stdout]     |
[INFO] [stdout] 360 |     &test_val.set_bit(0, false);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/tests.rs:362:5
[INFO] [stdout]     |
[INFO] [stdout] 362 |     &test_val.set_bit(4, false);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/tests.rs:366:5
[INFO] [stdout]     |
[INFO] [stdout] 366 |     &test_array.set_bit(7, false);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/tests.rs:367:5
[INFO] [stdout]     |
[INFO] [stdout] 367 |     &test_array.set_bit(8, true);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/tests.rs:368:5
[INFO] [stdout]     |
[INFO] [stdout] 368 |     &test_array.set_bit(16, false);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "fee3be9c4a6c0842aaef161d47767e740b0a4ff86738dbce91050f19a5c52a27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fee3be9c4a6c0842aaef161d47767e740b0a4ff86738dbce91050f19a5c52a27", kill_on_drop: false }`
[INFO] [stdout] fee3be9c4a6c0842aaef161d47767e740b0a4ff86738dbce91050f19a5c52a27