[INFO] fetching crate once_cell 1.8.0-pre.1...
[INFO] checking once_cell-1.8.0-pre.1 against try#8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346 for pr-86194
[INFO] extracting crate once_cell 1.8.0-pre.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate once_cell 1.8.0-pre.1 on toolchain 8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate once_cell 1.8.0-pre.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate once_cell 1.8.0-pre.1
[INFO] tweaked toml for crates.io crate once_cell 1.8.0-pre.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate once_cell 1.8.0-pre.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex-syntax v0.6.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 53d71093a1f6c225b66c2eb89f3ba519b3f0b2f737015ab8589b8ee885d1a3f7
[INFO] running `Command { std: "docker" "start" "-a" "53d71093a1f6c225b66c2eb89f3ba519b3f0b2f737015ab8589b8ee885d1a3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53d71093a1f6c225b66c2eb89f3ba519b3f0b2f737015ab8589b8ee885d1a3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53d71093a1f6c225b66c2eb89f3ba519b3f0b2f737015ab8589b8ee885d1a3f7", kill_on_drop: false }`
[INFO] [stdout] 53d71093a1f6c225b66c2eb89f3ba519b3f0b2f737015ab8589b8ee885d1a3f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf9a0ed0ff2106ef1417358352401280fceb65363308f5b554ab76c16f073d2d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cf9a0ed0ff2106ef1417358352401280fceb65363308f5b554ab76c16f073d2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking ucd-util v0.1.4
[INFO] [stderr]     Checking once_cell v1.8.0-pre.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.6.9
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]     Checking regex v1.2.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.46s
[INFO] running `Command { std: "docker" "inspect" "cf9a0ed0ff2106ef1417358352401280fceb65363308f5b554ab76c16f073d2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf9a0ed0ff2106ef1417358352401280fceb65363308f5b554ab76c16f073d2d", kill_on_drop: false }`
[INFO] [stdout] cf9a0ed0ff2106ef1417358352401280fceb65363308f5b554ab76c16f073d2d