[INFO] cloning repository https://github.com/rocallahan/biased-work-queues
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rocallahan/biased-work-queues" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frocallahan%2Fbiased-work-queues", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frocallahan%2Fbiased-work-queues'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 07c946f1e2c3c0874cb8ace8d35be586cae8215f
[INFO] testing rocallahan/biased-work-queues against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frocallahan%2Fbiased-work-queues" "/workspace/builds/worker-40/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-40/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rocallahan/biased-work-queues on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rocallahan/biased-work-queues
[INFO] finished tweaking git repo https://github.com/rocallahan/biased-work-queues
[INFO] tweaked toml for git repo https://github.com/rocallahan/biased-work-queues written to /workspace/builds/worker-40/source/Cargo.toml
[INFO] crate git repo https://github.com/rocallahan/biased-work-queues already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 53884cc19ef4198b1d76cae8f826f6f6eca695e6801a07462058e27ba0d2c3b4
[INFO] running `Command { std: "docker" "start" "-a" "53884cc19ef4198b1d76cae8f826f6f6eca695e6801a07462058e27ba0d2c3b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53884cc19ef4198b1d76cae8f826f6f6eca695e6801a07462058e27ba0d2c3b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53884cc19ef4198b1d76cae8f826f6f6eca695e6801a07462058e27ba0d2c3b4", kill_on_drop: false }`
[INFO] [stdout] 53884cc19ef4198b1d76cae8f826f6f6eca695e6801a07462058e27ba0d2c3b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c74a2e4494fa90868c252bab44065336a2f1babdd9d4536eee29ea32ae11ff08
[INFO] running `Command { std: "docker" "start" "-a" "c74a2e4494fa90868c252bab44065336a2f1babdd9d4536eee29ea32ae11ff08", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling biased-work-queues v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:125:5
[INFO] [stdout]     |
[INFO] [stdout] 125 |     /// Make sure we do plenty of work per thread
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 126 |     let total_work_units_per_pool = threads * 50;
[INFO] [stdout]     |     --------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 127 | /     /// Each threadpool uses a bit over half of the available CPU power
[INFO] [stdout] 128 | |     /// if run alone.
[INFO] [stdout] 129 | |     /// We want to saturate the system, so run three instances at once.
[INFO] [stdout]     | |_______________________________________________________________________^
[INFO] [stdout] 130 |       let simultaneous_pools = 3;
[INFO] [stdout]     |       --------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 01s
[INFO] running `Command { std: "docker" "inspect" "c74a2e4494fa90868c252bab44065336a2f1babdd9d4536eee29ea32ae11ff08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c74a2e4494fa90868c252bab44065336a2f1babdd9d4536eee29ea32ae11ff08", kill_on_drop: false }`
[INFO] [stdout] c74a2e4494fa90868c252bab44065336a2f1babdd9d4536eee29ea32ae11ff08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23c56ef3b0a275986c620cb4952ffb2f156f2468e78693117dc9220ffed6d321
[INFO] running `Command { std: "docker" "start" "-a" "23c56ef3b0a275986c620cb4952ffb2f156f2468e78693117dc9220ffed6d321", kill_on_drop: false }`
[INFO] [stderr]    Compiling biased-work-queues v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:125:5
[INFO] [stdout]     |
[INFO] [stdout] 125 |     /// Make sure we do plenty of work per thread
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 126 |     let total_work_units_per_pool = threads * 50;
[INFO] [stdout]     |     --------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 127 | /     /// Each threadpool uses a bit over half of the available CPU power
[INFO] [stdout] 128 | |     /// if run alone.
[INFO] [stdout] 129 | |     /// We want to saturate the system, so run three instances at once.
[INFO] [stdout]     | |_______________________________________________________________________^
[INFO] [stdout] 130 |       let simultaneous_pools = 3;
[INFO] [stdout]     |       --------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "23c56ef3b0a275986c620cb4952ffb2f156f2468e78693117dc9220ffed6d321", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23c56ef3b0a275986c620cb4952ffb2f156f2468e78693117dc9220ffed6d321", kill_on_drop: false }`
[INFO] [stdout] 23c56ef3b0a275986c620cb4952ffb2f156f2468e78693117dc9220ffed6d321
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 84ede985ec93d140eb81861035b9f89b630b41e13fcf4800f790ebe78c23b3fc
[INFO] running `Command { std: "docker" "start" "-a" "84ede985ec93d140eb81861035b9f89b630b41e13fcf4800f790ebe78c23b3fc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/main.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     /// Make sure we do plenty of work per thread
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 126 |     let total_work_units_per_pool = threads * 50;
[INFO] [stderr]     |     --------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]     = help: use `//` for a plain comment
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/main.rs:127:5
[INFO] [stderr]     |
[INFO] [stderr] 127 | /     /// Each threadpool uses a bit over half of the available CPU power
[INFO] [stderr] 128 | |     /// if run alone.
[INFO] [stderr] 129 | |     /// We want to saturate the system, so run three instances at once.
[INFO] [stderr]     | |_______________________________________________________________________^
[INFO] [stderr] 130 |       let simultaneous_pools = 3;
[INFO] [stderr]     |       --------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr]     |
[INFO] [stderr]     = help: use `//` for a plain comment
[INFO] [stderr] 
[INFO] [stderr] warning: `biased-work-queues` (bin "biased-work-queues" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.85s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/biased_work_queues-b75547b347262f28)
[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" "84ede985ec93d140eb81861035b9f89b630b41e13fcf4800f790ebe78c23b3fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84ede985ec93d140eb81861035b9f89b630b41e13fcf4800f790ebe78c23b3fc", kill_on_drop: false }`
[INFO] [stdout] 84ede985ec93d140eb81861035b9f89b630b41e13fcf4800f790ebe78c23b3fc