[INFO] cloning repository https://github.com/dns2utf8/rustdoc_demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dns2utf8/rustdoc_demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdns2utf8%2Frustdoc_demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdns2utf8%2Frustdoc_demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f7a03948e0c587e8abbb31dbc44101b3d78041ce
[INFO] checking dns2utf8/rustdoc_demo against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdns2utf8%2Frustdoc_demo" "/workspace/builds/worker-107/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-107/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dns2utf8/rustdoc_demo on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dns2utf8/rustdoc_demo
[INFO] finished tweaking git repo https://github.com/dns2utf8/rustdoc_demo
[INFO] tweaked toml for git repo https://github.com/dns2utf8/rustdoc_demo written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] crate git repo https://github.com/dns2utf8/rustdoc_demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f53cc39f0f893cf103bcea1b8aab796f792f74c9a837f0b5e0d9130752bc140d
[INFO] running `Command { std: "docker" "start" "-a" "f53cc39f0f893cf103bcea1b8aab796f792f74c9a837f0b5e0d9130752bc140d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f53cc39f0f893cf103bcea1b8aab796f792f74c9a837f0b5e0d9130752bc140d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f53cc39f0f893cf103bcea1b8aab796f792f74c9a837f0b5e0d9130752bc140d", kill_on_drop: false }`
[INFO] [stdout] f53cc39f0f893cf103bcea1b8aab796f792f74c9a837f0b5e0d9130752bc140d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d641494a8498590cb2dca7aa9052e79cd8a0c52cdd9a6eefcd22c0ad285904d4
[INFO] running `Command { std: "docker" "start" "-a" "d641494a8498590cb2dca7aa9052e79cd8a0c52cdd9a6eefcd22c0ad285904d4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking sudo v0.6.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking rustdoc_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `content`
[INFO] [stdout]   --> src/mod1.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         content::should::be::irrelevant();
[INFO] [stdout]    |         ^^^^^^^ use of undeclared crate or module `content`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `content`
[INFO] [stdout]   --> src/mod1.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         content::should::be::irrelevant();
[INFO] [stdout]    |         ^^^^^^^ use of undeclared crate or module `content`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustdoc_demo` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d641494a8498590cb2dca7aa9052e79cd8a0c52cdd9a6eefcd22c0ad285904d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d641494a8498590cb2dca7aa9052e79cd8a0c52cdd9a6eefcd22c0ad285904d4", kill_on_drop: false }`
[INFO] [stdout] d641494a8498590cb2dca7aa9052e79cd8a0c52cdd9a6eefcd22c0ad285904d4