[INFO] cloning repository https://github.com/luser/sumfilesizes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luser/sumfilesizes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluser%2Fsumfilesizes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluser%2Fsumfilesizes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c9aa5958816489c9a40bc2d16e305f80a5921c33
[INFO] checking luser/sumfilesizes against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluser%2Fsumfilesizes" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luser/sumfilesizes on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luser/sumfilesizes
[INFO] finished tweaking git repo https://github.com/luser/sumfilesizes
[INFO] tweaked toml for git repo https://github.com/luser/sumfilesizes written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/luser/sumfilesizes already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded either v1.1.0
[INFO] [stderr]   Downloaded scopeguard v0.3.2
[INFO] [stderr]   Downloaded num_cpus v1.6.2
[INFO] [stderr]   Downloaded coco v0.1.1
[INFO] [stderr]   Downloaded number_prefix v0.2.7
[INFO] [stderr]   Downloaded rayon v0.8.2
[INFO] [stderr]   Downloaded futures v0.1.14
[INFO] [stderr]   Downloaded rayon-core v1.2.1
[INFO] [stderr]   Downloaded walkdir v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15bb90b0619da3a4ca2d187b47301724697e311f3e9a7528e7020a0b87c79a5f
[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" "15bb90b0619da3a4ca2d187b47301724697e311f3e9a7528e7020a0b87c79a5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15bb90b0619da3a4ca2d187b47301724697e311f3e9a7528e7020a0b87c79a5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15bb90b0619da3a4ca2d187b47301724697e311f3e9a7528e7020a0b87c79a5f", kill_on_drop: false }`
[INFO] [stdout] 15bb90b0619da3a4ca2d187b47301724697e311f3e9a7528e7020a0b87c79a5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "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] 646d8bb0ebfff1dc05ec23eda03f95d46d8203dd1e3d31114421d989740245d3
[INFO] running `Command { std: "docker" "start" "-a" "646d8bb0ebfff1dc05ec23eda03f95d46d8203dd1e3d31114421d989740245d3", 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] [stderr]     Checking libc v0.2.17
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]     Checking scopeguard v0.3.2
[INFO] [stderr]     Checking futures v0.1.14
[INFO] [stderr]     Checking lazy_static v0.2.2
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking walkdir v1.0.1
[INFO] [stderr]     Checking coco v0.1.1
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking num_cpus v1.6.2
[INFO] [stderr]     Checking number_prefix v0.2.7
[INFO] [stderr]     Checking rayon v0.8.2
[INFO] [stderr]     Checking sumfilesizes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.84s
[INFO] running `Command { std: "docker" "inspect" "646d8bb0ebfff1dc05ec23eda03f95d46d8203dd1e3d31114421d989740245d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "646d8bb0ebfff1dc05ec23eda03f95d46d8203dd1e3d31114421d989740245d3", kill_on_drop: false }`
[INFO] [stdout] 646d8bb0ebfff1dc05ec23eda03f95d46d8203dd1e3d31114421d989740245d3