[INFO] cloning repository https://github.com/timhoeppner/rtic-learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/timhoeppner/rtic-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimhoeppner%2Frtic-learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimhoeppner%2Frtic-learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd719ce2ebdb73c40035f265a5f0eb4d90dac9e8
[INFO] checking timhoeppner/rtic-learning against master#53709aedba198874ee50769f19f1e9ab00798bb5 for pr-108221
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimhoeppner%2Frtic-learning" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/timhoeppner/rtic-learning on toolchain 53709aedba198874ee50769f19f1e9ab00798bb5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+53709aedba198874ee50769f19f1e9ab00798bb5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/timhoeppner/rtic-learning
[INFO] finished tweaking git repo https://github.com/timhoeppner/rtic-learning
[INFO] tweaked toml for git repo https://github.com/timhoeppner/rtic-learning written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/timhoeppner/rtic-learning already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+53709aedba198874ee50769f19f1e9ab00798bb5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rtic-monotonic v1.0.0
[INFO] [stderr]   Downloaded atomic-polyfill v0.1.5
[INFO] [stderr]   Downloaded cortex-m-rtic-macros v1.0.0
[INFO] [stderr]   Downloaded rtic-syntax v1.0.0
[INFO] [stderr]   Downloaded stm32f4xx-hal v0.12.0
[INFO] [stderr]   Downloaded fugit-timer v0.1.3
[INFO] [stderr]   Downloaded defmt v0.3.0
[INFO] [stderr]   Downloaded defmt-macros v0.3.1
[INFO] [stderr]   Downloaded defmt-rtt v0.3.1
[INFO] [stderr]   Downloaded rtic-core v1.0.0
[INFO] [stderr]   Downloaded embedded-dma v0.2.0
[INFO] [stderr]   Downloaded heapless v0.7.10
[INFO] [stderr]   Downloaded cortex-m-rtic v1.0.0
[INFO] [stderr]   Downloaded fugit v0.3.5
[INFO] [stderr]   Downloaded embedded-hal v1.0.0-alpha.7
[INFO] [stderr]   Downloaded defmt-parser v0.3.0
[INFO] [stderr]   Downloaded gcd v2.1.0
[INFO] [stderr]   Downloaded hd44780-driver v0.4.0
[INFO] [stderr]   Downloaded stm32f4 v0.14.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:542af8c9c691278ea8427c9f55ce1005b509eeebcbbcbc893145cd6832507671" "/opt/rustwide/cargo-home/bin/cargo" "+53709aedba198874ee50769f19f1e9ab00798bb5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20088072223c520048dd7390366581f4d8acbd2159fa779dbdb99c9cce5b17e2
[INFO] running `Command { std: "docker" "start" "-a" "20088072223c520048dd7390366581f4d8acbd2159fa779dbdb99c9cce5b17e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20088072223c520048dd7390366581f4d8acbd2159fa779dbdb99c9cce5b17e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20088072223c520048dd7390366581f4d8acbd2159fa779dbdb99c9cce5b17e2", kill_on_drop: false }`
[INFO] [stdout] 20088072223c520048dd7390366581f4d8acbd2159fa779dbdb99c9cce5b17e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:542af8c9c691278ea8427c9f55ce1005b509eeebcbbcbc893145cd6832507671" "/opt/rustwide/cargo-home/bin/cargo" "+53709aedba198874ee50769f19f1e9ab00798bb5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8fca2a4aead743faa1ad9658aba44f1e2a4aa4d0b61dacfda47ce2b1b153149
[INFO] running `Command { std: "docker" "start" "-a" "d8fca2a4aead743faa1ad9658aba44f1e2a4aa4d0b61dacfda47ce2b1b153149", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling cortex-m v0.7.4
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling defmt v0.3.0
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling defmt-macros v0.3.1
[INFO] [stderr]    Compiling cortex-m-rt v0.7.1
[INFO] [stderr]    Compiling defmt-parser v0.3.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking gcd v2.1.0
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling stm32f4 v0.14.0
[INFO] [stderr]    Compiling heapless v0.7.10
[INFO] [stderr]     Checking fugit v0.3.5
[INFO] [stderr]    Compiling cortex-m-rtic v1.0.0
[INFO] [stderr]     Checking num_threads v0.1.3
[INFO] [stderr]    Compiling panic-probe v0.3.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking spin v0.9.2
[INFO] [stderr]    Compiling defmt-rtt v0.3.1
[INFO] [stderr]     Checking rtic-monotonic v1.0.0
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking hd44780-driver v0.4.0
[INFO] [stderr]     Checking embedded-dma v0.2.0
[INFO] [stderr]     Checking embedded-hal v1.0.0-alpha.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rtic-core v1.0.0
[INFO] [stderr]     Checking embedded-storage v0.2.0
[INFO] [stderr]     Checking fugit-timer v0.1.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking time v0.3.7
[INFO] [stderr]    Compiling rtic-syntax v1.0.0
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]    Compiling defmt-test-macros v0.3.0
[INFO] [stderr]    Compiling cortex-m-rtic-macros v1.0.0
[INFO] [stderr]     Checking defmt-test v0.3.0
[INFO] [stderr]     Checking stm32f4xx-hal v0.12.0
[INFO] [stderr]     Checking rtic-learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking testsuite v0.1.0 (/opt/rustwide/workdir/testsuite)
[INFO] [stdout] warning: unused variable: `core`
[INFO] [stdout]   --> src/bin/minimal.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let core: cortex_m::Peripherals = ctx.core;
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_core`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `core`
[INFO] [stdout]   --> src/bin/minimal.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let core: cortex_m::Peripherals = ctx.core;
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_core`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 [optimized + debuginfo] target(s) in 16.45s
[INFO] running `Command { std: "docker" "inspect" "d8fca2a4aead743faa1ad9658aba44f1e2a4aa4d0b61dacfda47ce2b1b153149", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8fca2a4aead743faa1ad9658aba44f1e2a4aa4d0b61dacfda47ce2b1b153149", kill_on_drop: false }`
[INFO] [stdout] d8fca2a4aead743faa1ad9658aba44f1e2a4aa4d0b61dacfda47ce2b1b153149