[INFO] cloning repository https://github.com/p4ymak/collector
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/p4ymak/collector" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fp4ymak%2Fcollector", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fp4ymak%2Fcollector'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6affe5b6a084c999c7b6bc69a74d58c13d66d2ed
[INFO] checking p4ymak/collector against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fp4ymak%2Fcollector" "/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/p4ymak/collector 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/p4ymak/collector
[INFO] finished tweaking git repo https://github.com/p4ymak/collector
[INFO] tweaked toml for git repo https://github.com/p4ymak/collector written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/p4ymak/collector 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-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: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] ce1bd775cbab059361534f8d5f2109c36fb93d513320a6719f14646e1f51be01
[INFO] running `Command { std: "docker" "start" "-a" "ce1bd775cbab059361534f8d5f2109c36fb93d513320a6719f14646e1f51be01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce1bd775cbab059361534f8d5f2109c36fb93d513320a6719f14646e1f51be01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce1bd775cbab059361534f8d5f2109c36fb93d513320a6719f14646e1f51be01", kill_on_drop: false }`
[INFO] [stdout] ce1bd775cbab059361534f8d5f2109c36fb93d513320a6719f14646e1f51be01
[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: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] 053b2e1fb6a0a9f279985e608a09d18ef7693261f611e1c9f3bf52e9ecd80cc5
[INFO] running `Command { std: "docker" "start" "-a" "053b2e1fb6a0a9f279985e608a09d18ef7693261f611e1c9f3bf52e9ecd80cc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking fs_extra v1.2.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking size_format v1.0.2
[INFO] [stderr]     Checking collector v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.22s
[INFO] running `Command { std: "docker" "inspect" "053b2e1fb6a0a9f279985e608a09d18ef7693261f611e1c9f3bf52e9ecd80cc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "053b2e1fb6a0a9f279985e608a09d18ef7693261f611e1c9f3bf52e9ecd80cc5", kill_on_drop: false }`
[INFO] [stdout] 053b2e1fb6a0a9f279985e608a09d18ef7693261f611e1c9f3bf52e9ecd80cc5