[INFO] fetching crate ringbuf 0.4.4...
[INFO] checking ringbuf-0.4.4 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate ringbuf 0.4.4 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate ringbuf 0.4.4 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ringbuf 0.4.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate ringbuf 0.4.4
[INFO] tweaked toml for crates.io crate ringbuf 0.4.4 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate ringbuf 0.4.4 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded once_mut v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0bf910c0e79a3f342624c86bab5c7cfa962a79b7fd4ee5ee9305a46555492dbf
[INFO] running `Command { std: "docker" "start" "-a" "0bf910c0e79a3f342624c86bab5c7cfa962a79b7fd4ee5ee9305a46555492dbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bf910c0e79a3f342624c86bab5c7cfa962a79b7fd4ee5ee9305a46555492dbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bf910c0e79a3f342624c86bab5c7cfa962a79b7fd4ee5ee9305a46555492dbf", kill_on_drop: false }`
[INFO] [stdout] 0bf910c0e79a3f342624c86bab5c7cfa962a79b7fd4ee5ee9305a46555492dbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52bae1203e53d2b168aabdcf021d8b09762ab6c81a66efd990572ea9e7bbc0d3
[INFO] running `Command { std: "docker" "start" "-a" "52bae1203e53d2b168aabdcf021d8b09762ab6c81a66efd990572ea9e7bbc0d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking once_mut v0.1.1
[INFO] [stderr]     Checking ringbuf v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.05s
[INFO] running `Command { std: "docker" "inspect" "52bae1203e53d2b168aabdcf021d8b09762ab6c81a66efd990572ea9e7bbc0d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52bae1203e53d2b168aabdcf021d8b09762ab6c81a66efd990572ea9e7bbc0d3", kill_on_drop: false }`
[INFO] [stdout] 52bae1203e53d2b168aabdcf021d8b09762ab6c81a66efd990572ea9e7bbc0d3