[INFO] fetching crate hole-punch 0.0.3...
[INFO] checking hole-punch-0.0.3 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate hole-punch 0.0.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate hole-punch 0.0.3 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hole-punch 0.0.3
[INFO] finished tweaking crates.io crate hole-punch 0.0.3
[INFO] tweaked toml for crates.io crate hole-punch 0.0.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate hole-punch 0.0.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] efd81c334a395da8c6f6ca585a08673eff093a11c93f36895c7b75d15c0503ee
[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" "efd81c334a395da8c6f6ca585a08673eff093a11c93f36895c7b75d15c0503ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "efd81c334a395da8c6f6ca585a08673eff093a11c93f36895c7b75d15c0503ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efd81c334a395da8c6f6ca585a08673eff093a11c93f36895c7b75d15c0503ee", kill_on_drop: false }`
[INFO] [stdout] efd81c334a395da8c6f6ca585a08673eff093a11c93f36895c7b75d15c0503ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "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] 9663383d3cadd532cb9b0db0ab2182391c1e4789a54403ef813742d456a83687
[INFO] running `Command { std: "docker" "start" "-a" "9663383d3cadd532cb9b0db0ab2182391c1e4789a54403ef813742d456a83687", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking errno v0.2.4
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking aho-corasick v0.7.9
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.11
[INFO] [stderr]    Compiling quickcheck_macros v0.9.1
[INFO] [stderr]     Checking thiserror v1.0.11
[INFO] [stderr]     Checking hole-punch v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/unix.rs:133:17
[INFO] [stdout]     |
[INFO] [stdout] 133 | /                 /// EINVAL indicates that the file system does not support
[INFO] [stdout] 134 | |                 /// SEEK_HOLE or SEEK_DATA, so we indicate as such
[INFO] [stdout]     | |__________________________________________________________________^
[INFO] [stdout] 135 |                   EINVAL => Err(ScanError::UnsupportedFileSystem),
[INFO] [stdout]     |                   ----------------------------------------------- rustdoc does not generate documentation for match arms
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/unix.rs:163:17
[INFO] [stdout]     |
[INFO] [stdout] 163 | /                 /// EINVAL indicates that the file system does not support
[INFO] [stdout] 164 | |                 /// SEEK_HOLE or SEEK_DATA, so we indicate as such
[INFO] [stdout]     | |__________________________________________________________________^
[INFO] [stdout] 165 |                   EINVAL => Err(ScanError::UnsupportedFileSystem),
[INFO] [stdout]     |                   ----------------------------------------------- rustdoc does not generate documentation for match arms
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/unix.rs:133:17
[INFO] [stdout]     |
[INFO] [stdout] 133 | /                 /// EINVAL indicates that the file system does not support
[INFO] [stdout] 134 | |                 /// SEEK_HOLE or SEEK_DATA, so we indicate as such
[INFO] [stdout]     | |__________________________________________________________________^
[INFO] [stdout] 135 |                   EINVAL => Err(ScanError::UnsupportedFileSystem),
[INFO] [stdout]     |                   ----------------------------------------------- rustdoc does not generate documentation for match arms
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/unix.rs:163:17
[INFO] [stdout]     |
[INFO] [stdout] 163 | /                 /// EINVAL indicates that the file system does not support
[INFO] [stdout] 164 | |                 /// SEEK_HOLE or SEEK_DATA, so we indicate as such
[INFO] [stdout]     | |__________________________________________________________________^
[INFO] [stdout] 165 |                   EINVAL => Err(ScanError::UnsupportedFileSystem),
[INFO] [stdout]     |                   ----------------------------------------------- rustdoc does not generate documentation for match arms
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.47s
[INFO] running `Command { std: "docker" "inspect" "9663383d3cadd532cb9b0db0ab2182391c1e4789a54403ef813742d456a83687", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9663383d3cadd532cb9b0db0ab2182391c1e4789a54403ef813742d456a83687", kill_on_drop: false }`
[INFO] [stdout] 9663383d3cadd532cb9b0db0ab2182391c1e4789a54403ef813742d456a83687