[INFO] cloning repository https://github.com/NikBel3476/stm32-dfplayer-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NikBel3476/stm32-dfplayer-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNikBel3476%2Fstm32-dfplayer-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNikBel3476%2Fstm32-dfplayer-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f67b2ab9ccc859eb86060442e9dc93f5faf84ce6
[INFO] checking NikBel3476/stm32-dfplayer-test against try#2c4819a380dbddb1f2a0f4405a49fb6ed90983ae for pr-152996
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNikBel3476%2Fstm32-dfplayer-test" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/NikBel3476/stm32-dfplayer-test
[INFO] finished tweaking git repo https://github.com/NikBel3476/stm32-dfplayer-test
[INFO] tweaked toml for git repo https://github.com/NikBel3476/stm32-dfplayer-test written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/NikBel3476/stm32-dfplayer-test on toolchain 2c4819a380dbddb1f2a0f4405a49fb6ed90983ae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2c4819a380dbddb1f2a0f4405a49fb6ed90983ae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/NikBel3476/stm32-dfplayer-test 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" "+2c4819a380dbddb1f2a0f4405a49fb6ed90983ae" "fetch" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded defmt-parser v1.0.0
[INFO] [stderr]   Downloaded vcell v0.1.3
[INFO] [stderr]   Downloaded defmt v0.3.100
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.7.5
[INFO] [stderr]   Downloaded defmt-macros v1.0.1
[INFO] [stderr]   Downloaded cortex-m-rt v0.7.5
[INFO] [stderr]   Downloaded defmt-rtt v0.4.2
[INFO] [stderr]   Downloaded volatile-register v0.2.2
[INFO] [stderr]   Downloaded embassy-hal-internal v0.2.0
[INFO] [stderr]   Downloaded embassy-executor-macros v0.6.2
[INFO] [stderr]   Downloaded dfplayer-async v0.3.0
[INFO] [stderr]   Downloaded block-device-driver v0.2.0
[INFO] [stderr]   Downloaded embassy-usb-driver v0.1.0
[INFO] [stderr]   Downloaded embedded-io-async v0.6.1
[INFO] [stderr]   Downloaded embassy-embedded-hal v0.3.0
[INFO] [stderr]   Downloaded embassy-sync v0.6.2
[INFO] [stderr]   Downloaded embedded-hal-nb v1.0.0
[INFO] [stderr]   Downloaded fugit v0.3.7
[INFO] [stderr]   Downloaded bitfield v0.13.2
[INFO] [stderr]   Downloaded embassy-net-driver v0.2.0
[INFO] [stderr]   Downloaded embassy-executor v0.7.0
[INFO] [stderr]   Downloaded stm32-fmc v0.3.2
[INFO] [stderr]   Downloaded panic-probe v0.3.2
[INFO] [stderr]   Downloaded bare-metal v1.0.0
[INFO] [stderr]   Downloaded embedded-dma v0.2.0
[INFO] [stderr]   Downloaded embassy-usb-synopsys-otg v0.2.0
[INFO] [stderr]   Downloaded sdio-host v0.5.0
[INFO] [stderr]   Downloaded embassy-time-driver v0.2.0
[INFO] [stderr]   Downloaded embassy-time-queue-utils v0.1.0
[INFO] [stderr]   Downloaded embedded-can v0.4.1
[INFO] [stderr]   Downloaded embedded-storage-async v0.4.1
[INFO] [stderr]   Downloaded fugit-timer v0.1.3
[INFO] [stderr]   Downloaded cortex-m v0.7.7
[INFO] [stderr]   Downloaded embassy-futures v0.1.1
[INFO] [stderr]   Downloaded static_cell v2.1.0
[INFO] [stderr]   Downloaded embedded-storage v0.3.1
[INFO] [stderr]   Downloaded gcd v2.3.0
[INFO] [stderr]   Downloaded bare-metal v0.2.5
[INFO] [stderr]   Downloaded defmt v1.0.1
[INFO] [stderr]   Downloaded embassy-stm32 v0.2.0
[INFO] [stderr]   Downloaded stm32-metapac v16.0.0
[INFO] [stderr]   Downloaded stm32f4-staging v0.19.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+2c4819a380dbddb1f2a0f4405a49fb6ed90983ae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a374a0a8f4a21c1aba4d5ba0767f2b75f6c0b5b191cfb1b93e058f906769da7
[INFO] running `Command { std: "docker" "start" "-a" "3a374a0a8f4a21c1aba4d5ba0767f2b75f6c0b5b191cfb1b93e058f906769da7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a374a0a8f4a21c1aba4d5ba0767f2b75f6c0b5b191cfb1b93e058f906769da7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a374a0a8f4a21c1aba4d5ba0767f2b75f6c0b5b191cfb1b93e058f906769da7", kill_on_drop: false }`
[INFO] [stdout] 3a374a0a8f4a21c1aba4d5ba0767f2b75f6c0b5b191cfb1b93e058f906769da7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+2c4819a380dbddb1f2a0f4405a49fb6ed90983ae" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5368b7331cea8352b73a3243c77c2f5de158f42051f4e990e3b7e788779a6b2c
[INFO] running `Command { std: "docker" "start" "-a" "5368b7331cea8352b73a3243c77c2f5de158f42051f4e990e3b7e788779a6b2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling defmt-macros v1.0.1
[INFO] [stderr]    Compiling defmt v1.0.1
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]    Compiling cortex-m-rt v0.7.5
[INFO] [stderr]     Checking critical-section v1.2.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling litrs v0.4.1
[INFO] [stderr]     Checking volatile-register v0.2.2
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]     Checking embedded-hal v1.0.0
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling embedded-io-async v0.6.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking hash32 v0.3.1
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embassy-time-driver v0.2.0
[INFO] [stderr]    Compiling embedded-hal-async v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]    Compiling portable-atomic v1.11.0
[INFO] [stderr]    Compiling embassy-sync v0.6.2
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling document-features v0.2.11
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling stm32-metapac v16.0.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling embassy-time-queue-utils v0.1.0
[INFO] [stderr]    Compiling embassy-executor v0.7.0
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking embedded-storage v0.3.1
[INFO] [stderr]     Checking as-slice v0.2.1
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking gcd v2.3.0
[INFO] [stderr]    Compiling stm32f4-staging v0.19.0
[INFO] [stderr]    Compiling embassy-hal-internal v0.2.0
[INFO] [stderr]     Checking deranged v0.4.0
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]     Checking aligned v0.4.2
[INFO] [stderr]     Checking embedded-storage-async v0.4.1
[INFO] [stderr]    Compiling defmt-rtt v0.4.2
[INFO] [stderr]    Compiling panic-probe v0.3.2
[INFO] [stderr]     Checking embassy-futures v0.1.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling stm32f4xx-hal v0.22.1 (https://github.com/stm32-rs/stm32f4xx-hal?rev=34ec683582f9b27c2a9868952a675e27f8bdc383#34ec6835)
[INFO] [stderr]     Checking time-core v0.1.4
[INFO] [stderr]     Checking block-device-driver v0.2.0
[INFO] [stderr]     Checking embedded-dma v0.2.0
[INFO] [stderr]     Checking bitflags v2.9.0
[INFO] [stderr]     Checking time v0.3.41
[INFO] [stderr]     Checking sdio-host v0.5.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]    Compiling stm32-dfplayer-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking static_cell v2.1.0
[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.5
[INFO] [stderr]    Compiling enumflags2_derive v0.7.11
[INFO] [stderr]     Checking enumflags2 v0.7.11
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling embassy-executor-macros v0.6.2
[INFO] [stderr]    Compiling defmt-parser v1.0.0
[INFO] [stderr]    Compiling embassy-stm32 v0.2.0
[INFO] [stderr]     Checking defmt v0.3.100
[INFO] [stderr]     Checking embedded-io v0.6.1
[INFO] [stderr]     Checking embassy-usb-driver v0.1.0
[INFO] [stderr]     Checking fugit v0.3.7
[INFO] [stderr]     Checking embassy-net-driver v0.2.0
[INFO] [stderr]     Checking embedded-hal-nb v1.0.0
[INFO] [stderr]     Checking embedded-can v0.4.1
[INFO] [stderr]     Checking fugit-timer v0.1.3
[INFO] [stderr]     Checking dfplayer-async v0.3.0
[INFO] [stderr]     Checking embassy-time v0.4.0
[INFO] [stderr]     Checking stm32-fmc v0.3.2
[INFO] [stdout] error[E0425]: cannot find value `n` in this scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/dfplayer-async-0.3.0/src/lib.rs:1109:53
[INFO] [stdout]      |
[INFO] [stdout] 1107 |                 Ok(_n) => {
[INFO] [stdout]      |                    -- `_n` defined here
[INFO] [stdout] 1108 |                     #[cfg(feature = "defmt")]
[INFO] [stdout] 1109 |                     info!("Cleared {} bytes: {:?}", n, &buffer[.._n]);
[INFO] [stdout]      |                                                     ^
[INFO] [stdout]      |
[INFO] [stdout] help: the leading underscore in `_n` marks it as unused, consider renaming it to `n`
[INFO] [stdout]      |
[INFO] [stdout] 1107 -                 Ok(_n) => {
[INFO] [stdout] 1107 +                 Ok(n) => {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dfplayer-async` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5368b7331cea8352b73a3243c77c2f5de158f42051f4e990e3b7e788779a6b2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5368b7331cea8352b73a3243c77c2f5de158f42051f4e990e3b7e788779a6b2c", kill_on_drop: false }`
[INFO] [stdout] 5368b7331cea8352b73a3243c77c2f5de158f42051f4e990e3b7e788779a6b2c