[INFO] fetching crate nrf52 0.4.1...
[INFO] checking nrf52-0.4.1 against try#6686ffcefca4f92a784e49c45d735f79c0d1effa for pr-114489
[INFO] extracting crate nrf52 0.4.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate nrf52 0.4.1 on toolchain 6686ffcefca4f92a784e49c45d735f79c0d1effa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6686ffcefca4f92a784e49c45d735f79c0d1effa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nrf52 0.4.1
[INFO] finished tweaking crates.io crate nrf52 0.4.1
[INFO] tweaked toml for crates.io crate nrf52 0.4.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6686ffcefca4f92a784e49c45d735f79c0d1effa" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6686ffcefca4f92a784e49c45d735f79c0d1effa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+6686ffcefca4f92a784e49c45d735f79c0d1effa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0371923961c055b9b694c47449a79b5068e1a2795e8b454deb79299b04450382
[INFO] running `Command { std: "docker" "start" "-a" "0371923961c055b9b694c47449a79b5068e1a2795e8b454deb79299b04450382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0371923961c055b9b694c47449a79b5068e1a2795e8b454deb79299b04450382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0371923961c055b9b694c47449a79b5068e1a2795e8b454deb79299b04450382", kill_on_drop: false }`
[INFO] [stdout] 0371923961c055b9b694c47449a79b5068e1a2795e8b454deb79299b04450382
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+6686ffcefca4f92a784e49c45d735f79c0d1effa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38daba02d7d3e5d483643eb1e570b64b3e49dc09273dd0ad4814c5f587eb413d
[INFO] running `Command { std: "docker" "start" "-a" "38daba02d7d3e5d483643eb1e570b64b3e49dc09273dd0ad4814c5f587eb413d", kill_on_drop: false }`
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]    Compiling cortex-m v0.5.11
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]    Compiling nrf52 v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]     Checking aligned v0.3.5
[INFO] [stdout] warning: lint `private_no_mangle_statics` has been removed: no longer a warning, `#[no_mangle]` statics always exported
[INFO] [stdout]     --> src/lib.rs:1464:9
[INFO] [stdout]      |
[INFO] [stdout] 1464 | #[allow(private_no_mangle_statics)]
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `private_no_mangle_statics` has been removed: no longer a warning, `#[no_mangle]` statics always exported
[INFO] [stdout]     --> src/lib.rs:1464:9
[INFO] [stdout]      |
[INFO] [stdout] 1464 | #[allow(private_no_mangle_statics)]
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.93s
[INFO] running `Command { std: "docker" "inspect" "38daba02d7d3e5d483643eb1e570b64b3e49dc09273dd0ad4814c5f587eb413d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38daba02d7d3e5d483643eb1e570b64b3e49dc09273dd0ad4814c5f587eb413d", kill_on_drop: false }`
[INFO] [stdout] 38daba02d7d3e5d483643eb1e570b64b3e49dc09273dd0ad4814c5f587eb413d