[INFO] cloning repository https://github.com/n-yata/echo-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/n-yata/echo-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fn-yata%2Fecho-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fn-yata%2Fecho-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 387806767d36db769c2249b736aa8068eb126710
[INFO] checking n-yata/echo-server against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fn-yata%2Fecho-server" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/n-yata/echo-server on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/n-yata/echo-server
[INFO] finished tweaking git repo https://github.com/n-yata/echo-server
[INFO] tweaked toml for git repo https://github.com/n-yata/echo-server written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/n-yata/echo-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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] 2f0b25ef373d8242d7f31bddd99732cfbff6c883e877f089c5bbd66d04174ac8
[INFO] running `Command { std: "docker" "start" "-a" "2f0b25ef373d8242d7f31bddd99732cfbff6c883e877f089c5bbd66d04174ac8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f0b25ef373d8242d7f31bddd99732cfbff6c883e877f089c5bbd66d04174ac8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f0b25ef373d8242d7f31bddd99732cfbff6c883e877f089c5bbd66d04174ac8", kill_on_drop: false }`
[INFO] [stdout] 2f0b25ef373d8242d7f31bddd99732cfbff6c883e877f089c5bbd66d04174ac8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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] cc8c0dd3833ccf0c284e247c965eac9913d1d170a94f74071dcebf8dd503b2f2
[INFO] running `Command { std: "docker" "start" "-a" "cc8c0dd3833ccf0c284e247c965eac9913d1d170a94f74071dcebf8dd503b2f2", kill_on_drop: false }`
[INFO] [stderr]     Checking echo-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "cc8c0dd3833ccf0c284e247c965eac9913d1d170a94f74071dcebf8dd503b2f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc8c0dd3833ccf0c284e247c965eac9913d1d170a94f74071dcebf8dd503b2f2", kill_on_drop: false }`
[INFO] [stdout] cc8c0dd3833ccf0c284e247c965eac9913d1d170a94f74071dcebf8dd503b2f2