[INFO] cloning repository https://github.com/ryanobeirne/monte_carlo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ryanobeirne/monte_carlo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanobeirne%2Fmonte_carlo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanobeirne%2Fmonte_carlo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 275da0d4053df07288ab333033610fdaedf0a4f3
[INFO] checking ryanobeirne/monte_carlo against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanobeirne%2Fmonte_carlo" "/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/ryanobeirne/monte_carlo on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ryanobeirne/monte_carlo
[INFO] finished tweaking git repo https://github.com/ryanobeirne/monte_carlo
[INFO] tweaked toml for git repo https://github.com/ryanobeirne/monte_carlo written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ryanobeirne/monte_carlo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86d52c15b87b1011e3ace96e075823c4ca1ac6cbe8dbcc8108478074975b90e6
[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" "86d52c15b87b1011e3ace96e075823c4ca1ac6cbe8dbcc8108478074975b90e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86d52c15b87b1011e3ace96e075823c4ca1ac6cbe8dbcc8108478074975b90e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86d52c15b87b1011e3ace96e075823c4ca1ac6cbe8dbcc8108478074975b90e6", kill_on_drop: false }`
[INFO] [stdout] 86d52c15b87b1011e3ace96e075823c4ca1ac6cbe8dbcc8108478074975b90e6
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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] 4dfd253bbca65d3c3dd02f26bb2929210530a784d2850d04c3d8886946e878e3
[INFO] running `Command { std: "docker" "start" "-a" "4dfd253bbca65d3c3dd02f26bb2929210530a784d2850d04c3d8886946e878e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking arrayvec v0.4.8
[INFO] [stderr]     Checking rand_xorshift v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]     Checking monte_carlo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.45s
[INFO] running `Command { std: "docker" "inspect" "4dfd253bbca65d3c3dd02f26bb2929210530a784d2850d04c3d8886946e878e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dfd253bbca65d3c3dd02f26bb2929210530a784d2850d04c3d8886946e878e3", kill_on_drop: false }`
[INFO] [stdout] 4dfd253bbca65d3c3dd02f26bb2929210530a784d2850d04c3d8886946e878e3