[INFO] fetching crate lpc55-hal 0.0.3...
[INFO] documenting lpc55-hal-0.0.3 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate lpc55-hal 0.0.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate lpc55-hal 0.0.3 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5/source/.cargo/config
[INFO] started tweaking crates.io crate lpc55-hal 0.0.3
[INFO] finished tweaking crates.io crate lpc55-hal 0.0.3
[INFO] tweaked toml for crates.io crate lpc55-hal 0.0.3 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate lpc55-hal 0.0.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rtfm-syntax v0.4.0
[INFO] [stderr]   Downloaded cortex-m-rtfm-macros v0.5.0
[INFO] [stderr]   Downloaded rtfm-core v0.3.0
[INFO] [stderr]   Downloaded cortex-m-rtfm v0.5.1
[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" "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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df740fb5e982e9fcf4c499587c1da3c95a84a05af424ae8b3c094d99c41e7f7e
[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" "df740fb5e982e9fcf4c499587c1da3c95a84a05af424ae8b3c094d99c41e7f7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df740fb5e982e9fcf4c499587c1da3c95a84a05af424ae8b3c094d99c41e7f7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df740fb5e982e9fcf4c499587c1da3c95a84a05af424ae8b3c094d99c41e7f7e", kill_on_drop: false }`
[INFO] [stdout] df740fb5e982e9fcf4c499587c1da3c95a84a05af424ae8b3c094d99c41e7f7e
[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" "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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ac478e8bc2bac50fd97bc357b57e158f5ab89132046a9897a7f5408253f2036
[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" "3ac478e8bc2bac50fd97bc357b57e158f5ab89132046a9897a7f5408253f2036", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cortex-m v0.6.1
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling cortex-m-rt v0.6.11
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]    Compiling lpc55s6x-pac v0.0.5
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]    Compiling lpc55-hal v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking usb-device v0.2.3
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking embedded-hal v0.2.3
[INFO] [stderr]     Checking usbd-serial v0.1.0
[INFO] [stderr]     Checking as-slice v0.1.2
[INFO] [stderr]     Checking aligned v0.3.2
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.7
[INFO] [stderr]  Documenting lpc55-hal v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/drivers/usbd/endpoint_registers.rs:255:13
[INFO] [stdout]     |
[INFO] [stdout] 255 |             { self.bit(variant._bit()) }
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/drivers/usbd/endpoint_registers.rs:327:13
[INFO] [stdout]     |
[INFO] [stdout] 327 |             { self.bit(variant._bit()) }
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/drivers/usbd/endpoint_registers.rs:399:13
[INFO] [stdout]     |
[INFO] [stdout] 399 |             { self.bit(variant._bit()) }
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/drivers/usbd/endpoint_registers.rs:471:13
[INFO] [stdout]     |
[INFO] [stdout] 471 |             { self.bit(variant._bit()) }
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `Command { std: "docker" "inspect" "3ac478e8bc2bac50fd97bc357b57e158f5ab89132046a9897a7f5408253f2036", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ac478e8bc2bac50fd97bc357b57e158f5ab89132046a9897a7f5408253f2036", kill_on_drop: false }`
[INFO] [stdout] 3ac478e8bc2bac50fd97bc357b57e158f5ab89132046a9897a7f5408253f2036