[INFO] fetching crate mpsc_requests 0.3.4...
[INFO] checking mpsc_requests-0.3.4 against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723
[INFO] extracting crate mpsc_requests 0.3.4 into /workspace/builds/worker-6-tc2/source
[INFO] checking mpsc_requests-0.3.4 against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723
[INFO] extracting crate mpsc_requests 0.3.4 into /workspace/builds/worker-6-tc2/source
[INFO] checking mpsc_requests-0.3.4 against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723
[INFO] extracting crate mpsc_requests 0.3.4 into /workspace/builds/worker-6-tc2/source
[INFO] checking mpsc_requests-0.3.4 against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723
[INFO] extracting crate mpsc_requests 0.3.4 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate mpsc_requests 0.3.4 on toolchain 8d46be77cd48fdbcced888d027457e2c9cf2aa16
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mpsc_requests 0.3.4
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mpsc_requests 0.3.4
[INFO] tweaked toml for crates.io crate mpsc_requests 0.3.4 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate mpsc_requests 0.3.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be9763dc66ba79de38e9b19a9b0ebbe006786f4a26eff93b7702df41e12c4504
[INFO] running `Command { std: "docker" "start" "-a" "be9763dc66ba79de38e9b19a9b0ebbe006786f4a26eff93b7702df41e12c4504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be9763dc66ba79de38e9b19a9b0ebbe006786f4a26eff93b7702df41e12c4504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be9763dc66ba79de38e9b19a9b0ebbe006786f4a26eff93b7702df41e12c4504", kill_on_drop: false }`
[INFO] [stdout] be9763dc66ba79de38e9b19a9b0ebbe006786f4a26eff93b7702df41e12c4504
[INFO] checking mpsc_requests-0.3.4 against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723
[INFO] extracting crate mpsc_requests 0.3.4 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate mpsc_requests 0.3.4 on toolchain 8d46be77cd48fdbcced888d027457e2c9cf2aa16
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mpsc_requests 0.3.4
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mpsc_requests 0.3.4
[INFO] tweaked toml for crates.io crate mpsc_requests 0.3.4 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate mpsc_requests 0.3.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8e2d16463ef59e77c5f209ecb312d99a9789f81f973dff741cfc832d8bdcdf4
[INFO] running `Command { std: "docker" "start" "-a" "a8e2d16463ef59e77c5f209ecb312d99a9789f81f973dff741cfc832d8bdcdf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8e2d16463ef59e77c5f209ecb312d99a9789f81f973dff741cfc832d8bdcdf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8e2d16463ef59e77c5f209ecb312d99a9789f81f973dff741cfc832d8bdcdf4", kill_on_drop: false }`
[INFO] [stdout] a8e2d16463ef59e77c5f209ecb312d99a9789f81f973dff741cfc832d8bdcdf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5cac018dc986f44e79476245f503247230fcdc185c42ac7bd0fb2d07bd51761
[INFO] running `Command { std: "docker" "start" "-a" "b5cac018dc986f44e79476245f503247230fcdc185c42ac7bd0fb2d07bd51761", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]     Checking crossbeam-channel v0.5.13
[INFO] [stderr]     Checking mpsc_requests v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "b5cac018dc986f44e79476245f503247230fcdc185c42ac7bd0fb2d07bd51761", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5cac018dc986f44e79476245f503247230fcdc185c42ac7bd0fb2d07bd51761", kill_on_drop: false }`
[INFO] [stdout] b5cac018dc986f44e79476245f503247230fcdc185c42ac7bd0fb2d07bd51761