[INFO] cloning repository https://github.com/GovTechSG/chkr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GovTechSG/chkr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGovTechSG%2Fchkr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGovTechSG%2Fchkr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 767e4218499563f16683fc0b38f3e6505ef80480
[INFO] checking GovTechSG/chkr against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGovTechSG%2Fchkr" "/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/GovTechSG/chkr 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/GovTechSG/chkr
[INFO] finished tweaking git repo https://github.com/GovTechSG/chkr
[INFO] tweaked toml for git repo https://github.com/GovTechSG/chkr written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/GovTechSG/chkr 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] 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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4d99d0c1cb8a6fa38f0281e78ae8ffd64405abd51b514db5b173e55dac821850
[INFO] running `Command { std: "docker" "start" "-a" "4d99d0c1cb8a6fa38f0281e78ae8ffd64405abd51b514db5b173e55dac821850", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d99d0c1cb8a6fa38f0281e78ae8ffd64405abd51b514db5b173e55dac821850", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d99d0c1cb8a6fa38f0281e78ae8ffd64405abd51b514db5b173e55dac821850", kill_on_drop: false }`
[INFO] [stdout] 4d99d0c1cb8a6fa38f0281e78ae8ffd64405abd51b514db5b173e55dac821850
[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] f99ddb05885791c38ac373b314a4c3bae098aee6eb9c89bb611dd6a60a2956ab
[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" "f99ddb05885791c38ac373b314a4c3bae098aee6eb9c89bb611dd6a60a2956ab", kill_on_drop: false }`
[INFO] [stderr]     Checking rustc-serialize v0.3.22
[INFO] [stderr]     Checking lazy_static v0.2.2
[INFO] [stderr]     Checking strsim v0.5.2
[INFO] [stderr]     Checking md5 v0.3.3
[INFO] [stderr]     Checking assert_matches v1.1.0
[INFO] [stderr]     Checking docopt v0.6.86
[INFO] [stderr]     Checking csv v0.14.7
[INFO] [stderr]     Checking chkr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.10s
[INFO] running `Command { std: "docker" "inspect" "f99ddb05885791c38ac373b314a4c3bae098aee6eb9c89bb611dd6a60a2956ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f99ddb05885791c38ac373b314a4c3bae098aee6eb9c89bb611dd6a60a2956ab", kill_on_drop: false }`
[INFO] [stdout] f99ddb05885791c38ac373b314a4c3bae098aee6eb9c89bb611dd6a60a2956ab