[INFO] fetching crate swimmer 0.3.0...
[INFO] checking swimmer-0.3.0 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate swimmer 0.3.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate swimmer 0.3.0 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate swimmer 0.3.0
[INFO] finished tweaking crates.io crate swimmer 0.3.0
[INFO] tweaked toml for crates.io crate swimmer 0.3.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+90442458ac46b1d5eed752c316da25450f67285b" "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] b759ae1fb2b5851de21c98d2f9118cfd30b845a1125167349b5c8f1d67e12b08
[INFO] running `Command { std: "docker" "start" "-a" "b759ae1fb2b5851de21c98d2f9118cfd30b845a1125167349b5c8f1d67e12b08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b759ae1fb2b5851de21c98d2f9118cfd30b845a1125167349b5c8f1d67e12b08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b759ae1fb2b5851de21c98d2f9118cfd30b845a1125167349b5c8f1d67e12b08", kill_on_drop: false }`
[INFO] [stdout] b759ae1fb2b5851de21c98d2f9118cfd30b845a1125167349b5c8f1d67e12b08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+90442458ac46b1d5eed752c316da25450f67285b" "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] d354cd443465c3f0b6956d67a57aaa8310406876c91c37db0a06d50f1e9296ec
[INFO] running `Command { std: "docker" "start" "-a" "d354cd443465c3f0b6956d67a57aaa8310406876c91c37db0a06d50f1e9296ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]     Checking lifeguard v0.6.1
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking swimmer v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.62s
[INFO] running `Command { std: "docker" "inspect" "d354cd443465c3f0b6956d67a57aaa8310406876c91c37db0a06d50f1e9296ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d354cd443465c3f0b6956d67a57aaa8310406876c91c37db0a06d50f1e9296ec", kill_on_drop: false }`
[INFO] [stdout] d354cd443465c3f0b6956d67a57aaa8310406876c91c37db0a06d50f1e9296ec