[INFO] cloning repository https://github.com/AirborneEngineering/blethrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AirborneEngineering/blethrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAirborneEngineering%2Fblethrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAirborneEngineering%2Fblethrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3851267ecea56179aeaf4ec485609b7fcbcf1a5c
[INFO] documenting AirborneEngineering/blethrs against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAirborneEngineering%2Fblethrs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AirborneEngineering/blethrs 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 git repo https://github.com/AirborneEngineering/blethrs
[INFO] finished tweaking git repo https://github.com/AirborneEngineering/blethrs
[INFO] tweaked toml for git repo https://github.com/AirborneEngineering/blethrs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/AirborneEngineering/blethrs 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] 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] 87bd5faf8d78a6b0946f6e021406763bdedf1278e0f7f52e37f4910cafde8e38
[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" "87bd5faf8d78a6b0946f6e021406763bdedf1278e0f7f52e37f4910cafde8e38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87bd5faf8d78a6b0946f6e021406763bdedf1278e0f7f52e37f4910cafde8e38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87bd5faf8d78a6b0946f6e021406763bdedf1278e0f7f52e37f4910cafde8e38", kill_on_drop: false }`
[INFO] [stdout] 87bd5faf8d78a6b0946f6e021406763bdedf1278e0f7f52e37f4910cafde8e38
[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] 3f207051f0d7462b2083d55f6532710a89c98d71c0d6052e14303454e3b81731
[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" "3f207051f0d7462b2083d55f6532710a89c98d71c0d6052e14303454e3b81731", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling smallvec v1.3.0
[INFO] [stderr]    Compiling cortex-m v0.6.2
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking vcell v0.1.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.12
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]    Compiling stm32f4 v0.10.0
[INFO] [stderr]     Checking managed v0.7.1
[INFO] [stderr]     Checking ufmt-write v0.1.0
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking smoltcp v0.6.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]     Checking as-slice v0.1.3
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libgit2-sys v0.10.0
[INFO] [stderr]     Checking aligned v0.3.2
[INFO] [stderr]    Compiling git2 v0.11.0
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]    Compiling ufmt-macros v0.1.1
[INFO] [stderr]     Checking ufmt v0.1.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling cargo-lock v4.0.1
[INFO] [stderr]    Compiling built v0.4.0
[INFO] [stderr]    Compiling blethrs v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting blethrs v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![no_main]
[INFO] [stdout]   | ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![no_main]
[INFO] [stdout]   | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 16s
[INFO] running `Command { std: "docker" "inspect" "3f207051f0d7462b2083d55f6532710a89c98d71c0d6052e14303454e3b81731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f207051f0d7462b2083d55f6532710a89c98d71c0d6052e14303454e3b81731", kill_on_drop: false }`
[INFO] [stdout] 3f207051f0d7462b2083d55f6532710a89c98d71c0d6052e14303454e3b81731