[INFO] updating cached repository https://github.com/tazjin/nixdoc
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ad0f363276fbaad9ef35dcef3b4d8df0fbf5ee6e
[INFO] checking tazjin/nixdoc against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftazjin%2Fnixdoc" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tazjin/nixdoc on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-3/source/Cargo.toml
[INFO] crate git repo https://github.com/tazjin/nixdoc already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 678f2a850fc6002a866d8813e3b6faae879420df42e38703402673a33fccd736
[INFO] running `"docker" "start" "-a" "678f2a850fc6002a866d8813e3b6faae879420df42e38703402673a33fccd736"`
[INFO] [stderr]     Checking smol_str v0.1.7
[INFO] [stderr]     Checking arenatree v0.1.1 (https://gitlab.com/jD91mZM2/arenatree#f9bf7efa)
[INFO] [stderr]     Checking xml-rs v0.8.0
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.15.15
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure_derive v0.1.3
[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] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/main.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | #[macro_use] extern crate structopt;
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/main.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | #[macro_use] extern crate structopt;
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.29s
[INFO] running `"docker" "inspect" "678f2a850fc6002a866d8813e3b6faae879420df42e38703402673a33fccd736"`
[INFO] running `"docker" "rm" "-f" "678f2a850fc6002a866d8813e3b6faae879420df42e38703402673a33fccd736"`
[INFO] [stdout] 678f2a850fc6002a866d8813e3b6faae879420df42e38703402673a33fccd736