[INFO] cloning repository https://github.com/treuherz/scriv
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/treuherz/scriv" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftreuherz%2Fscriv", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftreuherz%2Fscriv'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 67f81b1bb0f18729ddc35aa9ee0687ebf09bf79b
[INFO] checking treuherz/scriv against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftreuherz%2Fscriv" "/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/treuherz/scriv 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/treuherz/scriv
[INFO] finished tweaking git repo https://github.com/treuherz/scriv
[INFO] tweaked toml for git repo https://github.com/treuherz/scriv written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/treuherz/scriv 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] 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] f80d20295b2d4d257c2628641dbe47148287ee489aac1d113a9cafd4a55c18e2
[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" "f80d20295b2d4d257c2628641dbe47148287ee489aac1d113a9cafd4a55c18e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f80d20295b2d4d257c2628641dbe47148287ee489aac1d113a9cafd4a55c18e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f80d20295b2d4d257c2628641dbe47148287ee489aac1d113a9cafd4a55c18e2", kill_on_drop: false }`
[INFO] [stdout] f80d20295b2d4d257c2628641dbe47148287ee489aac1d113a9cafd4a55c18e2
[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] ad88296df58a658c95e91e9cece23c398317612cba024f0e4bf35c562af7c75b
[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" "ad88296df58a658c95e91e9cece23c398317612cba024f0e4bf35c562af7c75b", kill_on_drop: false }`
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking normalize-line-endings v0.2.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking rand_os v0.1.2
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stderr]     Checking backtrace v0.3.14
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling trackable_derive v0.1.2
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking predicates v1.0.0
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking libflate v0.1.20
[INFO] [stderr]     Checking slog-term v2.4.0
[INFO] [stderr]     Checking slog-kvfilter v0.7.0
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking crossbeam v0.6.0
[INFO] [stderr]     Checking trackable v0.2.21
[INFO] [stderr]     Checking slog-scope v4.1.1
[INFO] [stderr]     Checking slog-stdlog v3.0.2
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking sloggers v0.3.2
[INFO] [stderr]     Checking scriv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `file`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     file: Option<PathBuf>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking assert_cmd v0.11.0
[INFO] [stdout] warning: field is never read: `file`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     file: Option<PathBuf>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.46s
[INFO] running `Command { std: "docker" "inspect" "ad88296df58a658c95e91e9cece23c398317612cba024f0e4bf35c562af7c75b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad88296df58a658c95e91e9cece23c398317612cba024f0e4bf35c562af7c75b", kill_on_drop: false }`
[INFO] [stdout] ad88296df58a658c95e91e9cece23c398317612cba024f0e4bf35c562af7c75b