[INFO] cloning repository https://github.com/mistodon/pchomp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mistodon/pchomp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmistodon%2Fpchomp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmistodon%2Fpchomp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c3816669e30e8fd3411ccf839659967d0d1ff97
[INFO] checking mistodon/pchomp against master#c9228570668803e3e6402770d55f23a12c9ae686 for pr-79472
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmistodon%2Fpchomp" "/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/mistodon/pchomp on toolchain c9228570668803e3e6402770d55f23a12c9ae686
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mistodon/pchomp
[INFO] finished tweaking git repo https://github.com/mistodon/pchomp
[INFO] tweaked toml for git repo https://github.com/mistodon/pchomp written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/mistodon/pchomp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef6ff9966655f9fe264fc7ed92efe8f192aad10c6ceca39b4954a197979015c8
[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" "ef6ff9966655f9fe264fc7ed92efe8f192aad10c6ceca39b4954a197979015c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef6ff9966655f9fe264fc7ed92efe8f192aad10c6ceca39b4954a197979015c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef6ff9966655f9fe264fc7ed92efe8f192aad10c6ceca39b4954a197979015c8", kill_on_drop: false }`
[INFO] [stdout] ef6ff9966655f9fe264fc7ed92efe8f192aad10c6ceca39b4954a197979015c8
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "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] 9d04ffec996ccbe4ce38001a8601c28221bd1e594cc7641c1b89d44b13aa0d8f
[INFO] running `Command { std: "docker" "start" "-a" "9d04ffec996ccbe4ce38001a8601c28221bd1e594cc7641c1b89d44b13aa0d8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.28
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking rustc-demangle v0.1.14
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking pchomp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.41s
[INFO] running `Command { std: "docker" "inspect" "9d04ffec996ccbe4ce38001a8601c28221bd1e594cc7641c1b89d44b13aa0d8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d04ffec996ccbe4ce38001a8601c28221bd1e594cc7641c1b89d44b13aa0d8f", kill_on_drop: false }`
[INFO] [stdout] 9d04ffec996ccbe4ce38001a8601c28221bd1e594cc7641c1b89d44b13aa0d8f