[INFO] fetching crate stabilizer 0.3.0...
[INFO] documenting stabilizer-0.3.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate stabilizer 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate stabilizer 0.3.0 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/.cargo/config
[INFO] started tweaking crates.io crate stabilizer 0.3.0
[INFO] finished tweaking crates.io crate stabilizer 0.3.0
[INFO] tweaked toml for crates.io crate stabilizer 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate stabilizer 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30a3e7bf2eba5e61551cc4138b0d5c43bd2e20223e5489696a50c5506a95e80f
[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" "30a3e7bf2eba5e61551cc4138b0d5c43bd2e20223e5489696a50c5506a95e80f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30a3e7bf2eba5e61551cc4138b0d5c43bd2e20223e5489696a50c5506a95e80f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30a3e7bf2eba5e61551cc4138b0d5c43bd2e20223e5489696a50c5506a95e80f", kill_on_drop: false }`
[INFO] [stdout] 30a3e7bf2eba5e61551cc4138b0d5c43bd2e20223e5489696a50c5506a95e80f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 148b967a8d4c07d292d7f293b50390cc504066750b9786154b99ca4769fad81d
[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" "148b967a8d4c07d292d7f293b50390cc504066750b9786154b99ca4769fad81d", 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]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cortex-m v0.6.2
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking vcell v0.1.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.11
[INFO] [stderr]    Compiling heapless v0.5.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling stm32h7 v0.9.0
[INFO] [stderr]    Compiling cortex-m-rtfm v0.5.1
[INFO] [stderr]    Compiling cortex-m-log v0.6.1
[INFO] [stderr]     Checking rtfm-core v0.3.0
[INFO] [stderr]     Checking managed v0.7.1
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling indexmap v1.3.1
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]     Checking smoltcp v0.6.0
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking as-slice v0.1.2
[INFO] [stderr]     Checking aligned v0.3.2
[INFO] [stderr]    Compiling rtfm-syntax v0.4.0
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.7
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling cortex-m-rtfm-macros v0.5.0
[INFO] [stderr]     Checking serde-json-core v0.1.0
[INFO] [stderr]  Documenting stabilizer v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `rtfm::cyccnt`
[INFO] [stdout]   --> src/main.rs:35:11
[INFO] [stdout]    |
[INFO] [stdout] 35 | use rtfm::cyccnt::{Instant, U32Ext as _};
[INFO] [stdout]    |           ^^^^^^ could not find `cyccnt` in `rtfm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `cyccnt` in `rtfm`
[INFO] [stdout]   --> src/main.rs:97:80
[INFO] [stdout]    |
[INFO] [stdout] 97 | #[rtfm::app(device = stm32h7::stm32h743, peripherals = true, monotonic = rtfm::cyccnt::CYCCNT)]
[INFO] [stdout]    |                                                                                ^^^^^^ could not find `cyccnt` in `rtfm`
[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] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `stabilizer`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name stabilizer 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-b93dec2816b242ca.rmeta --extern cortex_m_log=/opt/rustwide/target/debug/deps/libcortex_m_log-56e9e1141ed51f9e.rmeta --extern cortex_m_rt=/opt/rustwide/target/debug/deps/libcortex_m_rt-61696547e18d0a2f.rmeta --extern rtfm=/opt/rustwide/target/debug/deps/librtfm-ac545be3bbadb273.rmeta --extern heapless=/opt/rustwide/target/debug/deps/libheapless-dde36aef54343674.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-0811978887bdccc2.rmeta --extern panic_halt=/opt/rustwide/target/debug/deps/libpanic_halt-6b8023324bcde481.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-4c4e4da6fb1f444c.rmeta --extern serde_json_core=/opt/rustwide/target/debug/deps/libserde_json_core-4921782989f74312.rmeta --extern smoltcp=/opt/rustwide/target/debug/deps/libsmoltcp-034d891840d8df82.rmeta --extern stm32h7=/opt/rustwide/target/debug/deps/libstm32h7-303be82579ddbd20.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "148b967a8d4c07d292d7f293b50390cc504066750b9786154b99ca4769fad81d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "148b967a8d4c07d292d7f293b50390cc504066750b9786154b99ca4769fad81d", kill_on_drop: false }`
[INFO] [stdout] 148b967a8d4c07d292d7f293b50390cc504066750b9786154b99ca4769fad81d