[INFO] updating cached repository https://github.com/tones111/rtfm_app
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 47627920ee1ed59891d8bcebea003f5d494d30f4
[INFO] documenting tones111/rtfm_app against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftones111%2Frtfm_app" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tones111/rtfm_app on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5/source/.cargo/config
[INFO] started tweaking git repo https://github.com/tones111/rtfm_app
[INFO] finished tweaking git repo https://github.com/tones111/rtfm_app
[INFO] tweaked toml for git repo https://github.com/tones111/rtfm_app written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/tones111/rtfm_app already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed59dbff73c4104b2b17d8bcb97d7fe47d31b1ce90121bc971b026148119bad9
[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" "ed59dbff73c4104b2b17d8bcb97d7fe47d31b1ce90121bc971b026148119bad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed59dbff73c4104b2b17d8bcb97d7fe47d31b1ce90121bc971b026148119bad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed59dbff73c4104b2b17d8bcb97d7fe47d31b1ce90121bc971b026148119bad9", kill_on_drop: false }`
[INFO] [stdout] ed59dbff73c4104b2b17d8bcb97d7fe47d31b1ce90121bc971b026148119bad9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "RUSTDOCFLAGS=--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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2a9a8dd33d4b7fbee307bb5d8896302ac06c0655f60f7b283006b29842a77cd
[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" "b2a9a8dd33d4b7fbee307bb5d8896302ac06c0655f60f7b283006b29842a77cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.10
[INFO] [stderr]    Compiling heapless v0.5.1
[INFO] [stderr]    Compiling lm3s6965 v0.1.3
[INFO] [stderr]    Compiling cortex-m-rtfm v0.5.1
[INFO] [stderr]     Checking rtfm-core v0.3.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking as-slice v0.1.2
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking aligned v0.3.1
[INFO] [stderr]     Checking cortex-m v0.6.1
[INFO] [stderr]     Checking cortex-m-semihosting v0.3.5
[INFO] [stderr]     Checking panic-semihosting v0.5.3
[INFO] [stderr]    Compiling rtfm-syntax v0.4.0
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.6
[INFO] [stderr]    Compiling cortex-m-rtfm-macros v0.5.0
[INFO] [stderr]  Documenting rtfm_app v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unused attribute
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![no_main]
[INFO] [stdout]   | ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/main.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![deny(warnings)]
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   = note: `#[deny(unused_attributes)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: crate-level attribute should be in the root module
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![no_main]
[INFO] [stdout]   | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `rtfm_app`.
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name rtfm_app src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-d21918282bb122a4.rmeta --extern rtfm=/opt/rustwide/target/debug/deps/librtfm-e94e60dcb08baf33.rmeta --extern cortex_m_semihosting=/opt/rustwide/target/debug/deps/libcortex_m_semihosting-6ed593b0efddd9e0.rmeta --extern heapless=/opt/rustwide/target/debug/deps/libheapless-c1295d9d1a594c9f.rmeta --extern lm3s6965=/opt/rustwide/target/debug/deps/liblm3s6965-6b819569de190a3c.rmeta --extern panic_semihosting=/opt/rustwide/target/debug/deps/libpanic_semihosting-0a9722fc13f0a08e.rmeta --cap-lints=forbid` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "b2a9a8dd33d4b7fbee307bb5d8896302ac06c0655f60f7b283006b29842a77cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2a9a8dd33d4b7fbee307bb5d8896302ac06c0655f60f7b283006b29842a77cd", kill_on_drop: false }`
[INFO] [stdout] b2a9a8dd33d4b7fbee307bb5d8896302ac06c0655f60f7b283006b29842a77cd