[INFO] fetching crate buf-mutex 0.2.1...
[INFO] checking buf-mutex-0.2.1 against try#411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51 for pr-138844
[INFO] extracting crate buf-mutex 0.2.1 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate buf-mutex 0.2.1 on toolchain 411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate buf-mutex 0.2.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate buf-mutex 0.2.1
[INFO] tweaked toml for crates.io crate buf-mutex 0.2.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate buf-mutex 0.2.1 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" "+411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51" "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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e9d76be5bc85e75710389f8bee30b0ab04300f274bc88ea0aeb26f0f11cc23f
[INFO] running `Command { std: "docker" "start" "-a" "6e9d76be5bc85e75710389f8bee30b0ab04300f274bc88ea0aeb26f0f11cc23f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e9d76be5bc85e75710389f8bee30b0ab04300f274bc88ea0aeb26f0f11cc23f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e9d76be5bc85e75710389f8bee30b0ab04300f274bc88ea0aeb26f0f11cc23f", kill_on_drop: false }`
[INFO] [stdout] 6e9d76be5bc85e75710389f8bee30b0ab04300f274bc88ea0aeb26f0f11cc23f
[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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98bb22c4f7b919f7a3b113094ffdeaeb85c2429f8dbcf3a913cff97ce802ab1b
[INFO] running `Command { std: "docker" "start" "-a" "98bb22c4f7b919f7a3b113094ffdeaeb85c2429f8dbcf3a913cff97ce802ab1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking buf-mutex v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.00s
[INFO] running `Command { std: "docker" "inspect" "98bb22c4f7b919f7a3b113094ffdeaeb85c2429f8dbcf3a913cff97ce802ab1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98bb22c4f7b919f7a3b113094ffdeaeb85c2429f8dbcf3a913cff97ce802ab1b", kill_on_drop: false }`
[INFO] [stdout] 98bb22c4f7b919f7a3b113094ffdeaeb85c2429f8dbcf3a913cff97ce802ab1b