[INFO] cloning repository https://github.com/jvff/dkr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jvff/dkr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjvff%2Fdkr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjvff%2Fdkr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1aef833fa9ac314e553e83deb78f0217bd5b9396
[INFO] checking jvff/dkr against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjvff%2Fdkr" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jvff/dkr on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jvff/dkr
[INFO] finished tweaking git repo https://github.com/jvff/dkr
[INFO] tweaked toml for git repo https://github.com/jvff/dkr written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/jvff/dkr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75365a30f6157729b665834c2655be91594271f3577c3c1b0d716bf9e7ea2343
[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" "75365a30f6157729b665834c2655be91594271f3577c3c1b0d716bf9e7ea2343", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75365a30f6157729b665834c2655be91594271f3577c3c1b0d716bf9e7ea2343", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75365a30f6157729b665834c2655be91594271f3577c3c1b0d716bf9e7ea2343", kill_on_drop: false }`
[INFO] [stdout] 75365a30f6157729b665834c2655be91594271f3577c3c1b0d716bf9e7ea2343
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 216f80dc0bf40e75bc9bf50492ff16ce13afc8bebcfecfb73f330e044bd35928
[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" "216f80dc0bf40e75bc9bf50492ff16ce13afc8bebcfecfb73f330e044bd35928", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.27
[INFO] [stderr]    Compiling winapi v0.3.6
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking rustc-demangle v0.1.11
[INFO] [stderr]     Checking linked-hash-map v0.5.1
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking dtoa v0.4.3
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking app_dirs v1.2.1
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking tempfile v3.0.5
[INFO] [stderr]     Checking nix v0.11.0
[INFO] [stderr]     Checking yaml-rust v0.4.2
[INFO] [stderr]     Checking shared_child v0.3.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.26
[INFO] [stderr]     Checking backtrace v0.3.13
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking os_pipe v0.7.0
[INFO] [stderr]     Checking duct v0.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking serde v1.0.82
[INFO] [stderr]     Checking serde_yaml v0.8.8
[INFO] [stderr]     Checking dkr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.23s
[INFO] running `Command { std: "docker" "inspect" "216f80dc0bf40e75bc9bf50492ff16ce13afc8bebcfecfb73f330e044bd35928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "216f80dc0bf40e75bc9bf50492ff16ce13afc8bebcfecfb73f330e044bd35928", kill_on_drop: false }`
[INFO] [stdout] 216f80dc0bf40e75bc9bf50492ff16ce13afc8bebcfecfb73f330e044bd35928