[INFO] fetching crate ioprio 0.2.0...
[INFO] documenting ioprio-0.2.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate ioprio 0.2.0 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate ioprio 0.2.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ioprio 0.2.0
[INFO] finished tweaking crates.io crate ioprio 0.2.0
[INFO] tweaked toml for crates.io crate ioprio 0.2.0 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded iou v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9fa8dd2392f5ad8744505615950eb9ca77d392cd059fb64d8ac676f14e77fe7
[INFO] running `Command { std: "docker" "start" "-a" "b9fa8dd2392f5ad8744505615950eb9ca77d392cd059fb64d8ac676f14e77fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9fa8dd2392f5ad8744505615950eb9ca77d392cd059fb64d8ac676f14e77fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9fa8dd2392f5ad8744505615950eb9ca77d392cd059fb64d8ac676f14e77fe7", kill_on_drop: false }`
[INFO] [stdout] b9fa8dd2392f5ad8744505615950eb9ca77d392cd059fb64d8ac676f14e77fe7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 422c10a4f710a7754d41f5ac9d1f57db84c46272300b6ec549683bcebbf6e22e
[INFO] running `Command { std: "docker" "start" "-a" "422c10a4f710a7754d41f5ac9d1f57db84c46272300b6ec549683bcebbf6e22e", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]     Checking nix v0.21.0
[INFO] [stderr]  Documenting ioprio v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `iou_`
[INFO] [stdout]    --> src/lib.rs:290:30
[INFO] [stdout]     |
[INFO] [stdout] 290 |     impl private::Sealed for iou_::SQE<'_> {}
[INFO] [stdout]     |                              ^^^^ use of undeclared crate or module `iou_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `iou_`
[INFO] [stdout]    --> src/lib.rs:300:21
[INFO] [stdout]     |
[INFO] [stdout] 300 |     impl SqeExt for iou_::SQE<'_> {
[INFO] [stdout]     |                     ^^^^ use of undeclared crate or module `iou_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `ioprio`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name ioprio src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern libc=/opt/rustwide/target/debug/deps/liblibc-5843a6bc012a5731.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-1121e03445807e3f.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "422c10a4f710a7754d41f5ac9d1f57db84c46272300b6ec549683bcebbf6e22e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "422c10a4f710a7754d41f5ac9d1f57db84c46272300b6ec549683bcebbf6e22e", kill_on_drop: false }`
[INFO] [stdout] 422c10a4f710a7754d41f5ac9d1f57db84c46272300b6ec549683bcebbf6e22e
