[INFO] fetching crate comrak 0.47.0...
[INFO] checking comrak-0.47.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate comrak 0.47.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate comrak 0.47.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate comrak 0.47.0
[INFO] tweaked toml for crates.io crate comrak 0.47.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate comrak 0.47.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate comrak 0.47.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 337c765d662ebf76191bb437d36990758876fbb12cc2c895586d173f253b7641
[INFO] running `Command { std: "docker" "start" "-a" "337c765d662ebf76191bb437d36990758876fbb12cc2c895586d173f253b7641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "337c765d662ebf76191bb437d36990758876fbb12cc2c895586d173f253b7641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "337c765d662ebf76191bb437d36990758876fbb12cc2c895586d173f253b7641", kill_on_drop: false }`
[INFO] [stdout] 337c765d662ebf76191bb437d36990758876fbb12cc2c895586d173f253b7641
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f113eda1829bda8969d3b06bf527a161504c7b6e4eab026752ae723de005084
[INFO] running `Command { std: "docker" "start" "-a" "9f113eda1829bda8969d3b06bf527a161504c7b6e4eab026752ae723de005084", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]    Compiling rustix v0.36.17
[INFO] [stderr]    Compiling prettyplease v0.2.25
[INFO] [stderr]     Checking phf_shared v0.11.1
[INFO] [stderr]    Compiling entities v1.0.1
[INFO] [stderr]     Checking os_str_bytes v6.6.1
[INFO] [stderr]    Compiling jetscii v0.5.3
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]     Checking phf v0.11.1
[INFO] [stderr]    Compiling comrak v0.47.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]  --> build.rs:6:28
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let out_dir: PathBuf = env::var("OUT_DIR").unwrap().parse().unwrap();
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `comrak` (build script) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9f113eda1829bda8969d3b06bf527a161504c7b6e4eab026752ae723de005084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f113eda1829bda8969d3b06bf527a161504c7b6e4eab026752ae723de005084", kill_on_drop: false }`
[INFO] [stdout] 9f113eda1829bda8969d3b06bf527a161504c7b6e4eab026752ae723de005084