[INFO] cloning repository https://github.com/seanchen1991/listrank [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seanchen1991/listrank" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseanchen1991%2Flistrank", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseanchen1991%2Flistrank'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b398135fe621c4b9e178e31e439bd0620a23ebc2 [INFO] checking seanchen1991/listrank against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseanchen1991%2Flistrank" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/seanchen1991/listrank 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/seanchen1991/listrank [INFO] finished tweaking git repo https://github.com/seanchen1991/listrank [INFO] tweaked toml for git repo https://github.com/seanchen1991/listrank written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/seanchen1991/listrank 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rand_isaac v0.1.1 [INFO] [stderr] Downloaded scopeguard v0.3.3 [INFO] [stderr] Downloaded rand_hc v0.1.0 [INFO] [stderr] Downloaded bitflags v1.0.1 [INFO] [stderr] Downloaded either v1.5.0 [INFO] [stderr] Downloaded num_cpus v1.9.0 [INFO] [stderr] Downloaded crossbeam-epoch v0.3.1 [INFO] [stderr] Downloaded fuchsia-zircon-sys v0.3.3 [INFO] [stderr] Downloaded rand_pcg v0.1.1 [INFO] [stderr] Downloaded memoffset v0.2.1 [INFO] [stderr] Downloaded rayon-core v1.4.1 [INFO] [stderr] Downloaded semver-parser v0.7.0 [INFO] [stderr] Downloaded cfg-if v0.1.6 [INFO] [stderr] Downloaded rand_xorshift v0.1.0 [INFO] [stderr] Downloaded cloudabi v0.0.3 [INFO] [stderr] Downloaded rustc_version v0.2.3 [INFO] [stderr] Downloaded libc v0.2.40 [INFO] [stderr] Downloaded crossbeam-utils v0.2.2 [INFO] [stderr] Downloaded rand v0.6.1 [INFO] [stderr] Downloaded rand_chacha v0.1.0 [INFO] [stderr] Downloaded winapi v0.3.4 [INFO] [stderr] Downloaded rayon v1.0.3 [INFO] [stderr] Downloaded arrayvec v0.4.9 [INFO] [stderr] Downloaded crossbeam-deque v0.2.0 [INFO] [stderr] Downloaded semver v0.9.0 [INFO] [stderr] Downloaded nodrop v0.1.13 [INFO] [stderr] Downloaded lazy_static v1.2.0 [INFO] [stderr] Downloaded winapi-i686-pc-windows-gnu v0.4.0 [INFO] [stderr] Downloaded rand_core v0.3.0 [INFO] [stderr] Downloaded fuchsia-zircon v0.3.3 [INFO] [stderr] Downloaded winapi-x86_64-pc-windows-gnu v0.4.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 960aa137a896cf388cd43143d7c6f82e5ae893245bbc500ab95e5d66cb689653 [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" "960aa137a896cf388cd43143d7c6f82e5ae893245bbc500ab95e5d66cb689653", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "960aa137a896cf388cd43143d7c6f82e5ae893245bbc500ab95e5d66cb689653", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "960aa137a896cf388cd43143d7c6f82e5ae893245bbc500ab95e5d66cb689653", kill_on_drop: false }` [INFO] [stdout] 960aa137a896cf388cd43143d7c6f82e5ae893245bbc500ab95e5d66cb689653 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] 579bb25b5b9436d4a27a612e4c7eed8c5a4a451cebd5c693dd9c418d40b670f2 [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" "579bb25b5b9436d4a27a612e4c7eed8c5a4a451cebd5c693dd9c418d40b670f2", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking rand_core v0.3.0 [INFO] [stderr] Compiling arrayvec v0.4.9 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Checking libc v0.2.40 [INFO] [stderr] Compiling rayon-core v1.4.1 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling rayon v1.0.3 [INFO] [stderr] Checking either v1.5.0 [INFO] [stderr] Checking crossbeam-utils v0.2.2 [INFO] [stderr] Checking rand_xorshift v0.1.0 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking num_cpus v1.9.0 [INFO] [stderr] Checking crossbeam-epoch v0.3.1 [INFO] [stderr] Checking crossbeam-deque v0.2.0 [INFO] [stderr] Compiling rand_chacha v0.1.0 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Compiling rand v0.6.1 [INFO] [stderr] Checking listrank v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 16.57s [INFO] running `Command { std: "docker" "inspect" "579bb25b5b9436d4a27a612e4c7eed8c5a4a451cebd5c693dd9c418d40b670f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "579bb25b5b9436d4a27a612e4c7eed8c5a4a451cebd5c693dd9c418d40b670f2", kill_on_drop: false }` [INFO] [stdout] 579bb25b5b9436d4a27a612e4c7eed8c5a4a451cebd5c693dd9c418d40b670f2