[INFO] cloning repository https://github.com/tc-dickson/Embedded_Rust_LED_Flashing_Message
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tc-dickson/Embedded_Rust_LED_Flashing_Message" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftc-dickson%2FEmbedded_Rust_LED_Flashing_Message", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftc-dickson%2FEmbedded_Rust_LED_Flashing_Message'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 87ae19f5b3807400c7d2253b458c0888344d1ae0
[INFO] fixing tc-dickson/Embedded_Rust_LED_Flashing_Message against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftc-dickson%2FEmbedded_Rust_LED_Flashing_Message" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/tc-dickson/Embedded_Rust_LED_Flashing_Message
[INFO] finished tweaking git repo https://github.com/tc-dickson/Embedded_Rust_LED_Flashing_Message
[INFO] tweaked toml for git repo https://github.com/tc-dickson/Embedded_Rust_LED_Flashing_Message written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tc-dickson/Embedded_Rust_LED_Flashing_Message on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tc-dickson/Embedded_Rust_LED_Flashing_Message 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ufmt-write v0.1.0
[INFO] [stderr]   Downloaded microbit-common v0.16.0
[INFO] [stderr]   Downloaded panic-rtt-target v0.2.0
[INFO] [stderr]   Downloaded rtt-target v0.6.2
[INFO] [stderr]   Downloaded microbit-v2 v0.16.0
[INFO] [stderr]   Downloaded embedded-io v0.7.1
[INFO] [stderr]   Downloaded nrf-hal-common v0.19.0
[INFO] [stderr]   Downloaded tiny-led-matrix v1.0.2
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.7.5
[INFO] [stderr]   Downloaded usb-device v0.3.2
[INFO] [stderr]   Downloaded nrf52833-hal v0.19.0
[INFO] [stderr]   Downloaded embedded-dma v0.2.0
[INFO] [stderr]   Downloaded cortex-m-rt v0.7.5
[INFO] [stderr]   Downloaded az v1.3.0
[INFO] [stderr]   Downloaded maybe-async-cfg v0.2.5
[INFO] [stderr]   Downloaded lsm303agr v1.1.0
[INFO] [stderr]   Downloaded nrf-usbd v0.3.0
[INFO] [stderr]   Downloaded zerocopy-derive v0.8.39
[INFO] [stderr]   Downloaded pulldown-cmark v0.11.3
[INFO] [stderr]   Downloaded fixed v1.30.0
[INFO] [stderr]   Downloaded zerocopy v0.8.39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b4411a943fee3f2cbec37fc197b3ffb997012ba16a5e9d4e9883571334bc822c
[INFO] running `Command { std: "docker" "start" "b4411a943fee3f2cbec37fc197b3ffb997012ba16a5e9d4e9883571334bc822c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b4411a943fee3f2cbec37fc197b3ffb997012ba16a5e9d4e9883571334bc822c" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4411a943fee3f2cbec37fc197b3ffb997012ba16a5e9d4e9883571334bc822c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b4411a943fee3f2cbec37fc197b3ffb997012ba16a5e9d4e9883571334bc822c" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]     Checking led_flashing_message v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/integrator/ring_buffer.rs:183:36
[INFO] [stdout]     |
[INFO] [stdout] 183 |         assert_eq!(buffer.push(1), Err(1));
[INFO] [stdout]     |                                    ^^^^^^ expected `Result<(), &str>`, found `Result<_, {integer}>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected enum `Result<(), &str>`
[INFO] [stdout]                found enum `Result<_, {integer}>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `led_flashing_message` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b4411a943fee3f2cbec37fc197b3ffb997012ba16a5e9d4e9883571334bc822c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4411a943fee3f2cbec37fc197b3ffb997012ba16a5e9d4e9883571334bc822c", kill_on_drop: false }`
[INFO] [stdout] b4411a943fee3f2cbec37fc197b3ffb997012ba16a5e9d4e9883571334bc822c
