[INFO] fetching crate ffcnt 0.3.2...
[INFO] checking ffcnt-0.3.2 against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] extracting crate ffcnt 0.3.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ffcnt 0.3.2 on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ffcnt 0.3.2
[INFO] finished tweaking crates.io crate ffcnt 0.3.2
[INFO] tweaked toml for crates.io crate ffcnt 0.3.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate ffcnt 0.3.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ebdc216710de3f8be720d83ff8791811e464fc160e75881fcd69f9fcb3a5b9c
[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" "2ebdc216710de3f8be720d83ff8791811e464fc160e75881fcd69f9fcb3a5b9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ebdc216710de3f8be720d83ff8791811e464fc160e75881fcd69f9fcb3a5b9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ebdc216710de3f8be720d83ff8791811e464fc160e75881fcd69f9fcb3a5b9c", kill_on_drop: false }`
[INFO] [stdout] 2ebdc216710de3f8be720d83ff8791811e464fc160e75881fcd69f9fcb3a5b9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] cf5dc607c8b8a1ceb34a70a01ec17c3935dca1dcd0e64fdb8e174b8483a00e71
[INFO] running `Command { std: "docker" "start" "-a" "cf5dc607c8b8a1ceb34a70a01ec17c3935dca1dcd0e64fdb8e174b8483a00e71", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.90
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking uuid v0.3.1
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling case v0.1.0
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking minilzo-sys v0.1.0
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]     Checking mnt v0.3.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking minilzo v0.1.2
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]    Compiling derive-error v0.0.5
[INFO] [stderr]     Checking btrfs2 v1.2.2
[INFO] [stderr]     Checking platter-walk v0.1.3
[INFO] [stderr]     Checking ffcnt v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.36s
[INFO] running `Command { std: "docker" "inspect" "cf5dc607c8b8a1ceb34a70a01ec17c3935dca1dcd0e64fdb8e174b8483a00e71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf5dc607c8b8a1ceb34a70a01ec17c3935dca1dcd0e64fdb8e174b8483a00e71", kill_on_drop: false }`
[INFO] [stdout] cf5dc607c8b8a1ceb34a70a01ec17c3935dca1dcd0e64fdb8e174b8483a00e71