[INFO] cloning repository https://github.com/tazjin/nixdoc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tazjin/nixdoc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftazjin%2Fnixdoc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftazjin%2Fnixdoc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad0f363276fbaad9ef35dcef3b4d8df0fbf5ee6e
[INFO] checking tazjin/nixdoc against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftazjin%2Fnixdoc" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tazjin/nixdoc on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tazjin/nixdoc
[INFO] finished tweaking git repo https://github.com/tazjin/nixdoc
[INFO] tweaked toml for git repo https://github.com/tazjin/nixdoc written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/tazjin/nixdoc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smol_str v0.1.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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] c828af4d3136f980b189a8b56be74f66a552c234f9780408e729e0a736f9f21b
[INFO] running `Command { std: "docker" "start" "-a" "c828af4d3136f980b189a8b56be74f66a552c234f9780408e729e0a736f9f21b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c828af4d3136f980b189a8b56be74f66a552c234f9780408e729e0a736f9f21b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c828af4d3136f980b189a8b56be74f66a552c234f9780408e729e0a736f9f21b", kill_on_drop: false }`
[INFO] [stdout] c828af4d3136f980b189a8b56be74f66a552c234f9780408e729e0a736f9f21b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51d015e64bbe23e6b7079f99ca24eae1862d936e8a4febc4fc594dc688d02df8
[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" "51d015e64bbe23e6b7079f99ca24eae1862d936e8a4febc4fc594dc688d02df8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking arenatree v0.1.1 (https://gitlab.com/jD91mZM2/arenatree#f9bf7efa)
[INFO] [stderr]     Checking smol_str v0.1.7
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.15.15
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling structopt-derive v0.2.12
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]     Checking rnix v0.4.1 (https://gitlab.com/jD91mZM2/rnix.git?rev=10b86c94291b4864470158ef8750de85ddd8d4ba#10b86c94)
[INFO] [stderr]     Checking structopt v0.2.12
[INFO] [stderr]     Checking nixdoc v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/main.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | #[macro_use] extern crate structopt;
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/main.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | #[macro_use] extern crate structopt;
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.33s
[INFO] running `Command { std: "docker" "inspect" "51d015e64bbe23e6b7079f99ca24eae1862d936e8a4febc4fc594dc688d02df8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51d015e64bbe23e6b7079f99ca24eae1862d936e8a4febc4fc594dc688d02df8", kill_on_drop: false }`
[INFO] [stdout] 51d015e64bbe23e6b7079f99ca24eae1862d936e8a4febc4fc594dc688d02df8