[INFO] cloning repository https://github.com/MROS/contest_helper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MROS/contest_helper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMROS%2Fcontest_helper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMROS%2Fcontest_helper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0851e53eb09276fe4b96d878e3f97000b71dca71
[INFO] checking MROS/contest_helper against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMROS%2Fcontest_helper" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MROS/contest_helper on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MROS/contest_helper
[INFO] finished tweaking git repo https://github.com/MROS/contest_helper
[INFO] tweaked toml for git repo https://github.com/MROS/contest_helper written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/MROS/contest_helper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9a7081966d79cb94f79b7e8443b489019e3c30f0e41a38ec3dfdfa387278373
[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" "b9a7081966d79cb94f79b7e8443b489019e3c30f0e41a38ec3dfdfa387278373", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9a7081966d79cb94f79b7e8443b489019e3c30f0e41a38ec3dfdfa387278373", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9a7081966d79cb94f79b7e8443b489019e3c30f0e41a38ec3dfdfa387278373", kill_on_drop: false }`
[INFO] [stdout] b9a7081966d79cb94f79b7e8443b489019e3c30f0e41a38ec3dfdfa387278373
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 245bdf26dbbac97ba6795c479603a9bba48f38c8853ba7ae889f71d7a95cb41f
[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" "245bdf26dbbac97ba6795c479603a9bba48f38c8853ba7ae889f71d7a95cb41f", kill_on_drop: false }`
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking ch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.32s
[INFO] running `Command { std: "docker" "inspect" "245bdf26dbbac97ba6795c479603a9bba48f38c8853ba7ae889f71d7a95cb41f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "245bdf26dbbac97ba6795c479603a9bba48f38c8853ba7ae889f71d7a95cb41f", kill_on_drop: false }`
[INFO] [stdout] 245bdf26dbbac97ba6795c479603a9bba48f38c8853ba7ae889f71d7a95cb41f