[INFO] cloning repository https://github.com/Congyuwang/microbit-tug-of-war [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Congyuwang/microbit-tug-of-war" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCongyuwang%2Fmicrobit-tug-of-war", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCongyuwang%2Fmicrobit-tug-of-war'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7632ce0e5433cfd4ded669845258ca18d7cd4885 [INFO] checking Congyuwang/microbit-tug-of-war against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCongyuwang%2Fmicrobit-tug-of-war" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Congyuwang/microbit-tug-of-war on toolchain 506512391b1a75ae450d36c9420978402a91abcc [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Congyuwang/microbit-tug-of-war [INFO] finished tweaking git repo https://github.com/Congyuwang/microbit-tug-of-war [INFO] tweaked toml for git repo https://github.com/Congyuwang/microbit-tug-of-war written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Congyuwang/microbit-tug-of-war 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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rtt-target v0.3.1 [INFO] [stderr] Downloaded microbit-common v0.12.0 [INFO] [stderr] Downloaded nrf52833-hal v0.14.1 [INFO] [stderr] Downloaded panic-rtt-target v0.1.2 [INFO] [stderr] Downloaded critical-section v0.2.8 [INFO] [stderr] Downloaded embedded-storage v0.2.0 [INFO] [stderr] Downloaded tiny-led-matrix v1.0.2 [INFO] [stderr] Downloaded nrf-usbd v0.1.1 [INFO] [stderr] Downloaded nrf-hal-common v0.14.1 [INFO] [stderr] Downloaded fixed v1.26.0 [INFO] [stderr] Downloaded nrf52833-pac v0.10.1 [INFO] [stderr] Downloaded microbit-v2 v0.12.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f01830cc072ee4a70b4f0725c0cf6c50d834af7509d9cf569626e6297488bd49 [INFO] running `Command { std: "docker" "start" "-a" "f01830cc072ee4a70b4f0725c0cf6c50d834af7509d9cf569626e6297488bd49", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f01830cc072ee4a70b4f0725c0cf6c50d834af7509d9cf569626e6297488bd49", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f01830cc072ee4a70b4f0725c0cf6c50d834af7509d9cf569626e6297488bd49", kill_on_drop: false }` [INFO] [stdout] f01830cc072ee4a70b4f0725c0cf6c50d834af7509d9cf569626e6297488bd49 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f9692f6b0f6e992427e6e5dae5ed8d6fbfd1bf6a0ddf6017535a87bc67aabd3a [INFO] running `Command { std: "docker" "start" "-a" "f9692f6b0f6e992427e6e5dae5ed8d6fbfd1bf6a0ddf6017535a87bc67aabd3a", kill_on_drop: false }` [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling cortex-m v0.7.7 [INFO] [stderr] Checking nb v1.1.0 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking vcell v0.1.3 [INFO] [stderr] Checking bitfield v0.13.2 [INFO] [stderr] Compiling cortex-m-rt v0.7.3 [INFO] [stderr] Compiling typenum v1.17.0 [INFO] [stderr] Compiling az v1.2.1 [INFO] [stderr] Compiling nrf52833-pac v0.10.1 [INFO] [stderr] Compiling fixed v1.26.0 [INFO] [stderr] Checking critical-section v1.1.2 [INFO] [stderr] Checking bare-metal v1.0.0 [INFO] [stderr] Checking half v2.4.0 [INFO] [stderr] Compiling nrf-hal-common v0.14.1 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking volatile-register v0.2.2 [INFO] [stderr] Checking usb-device v0.2.9 [INFO] [stderr] Checking bytemuck v1.15.0 [INFO] [stderr] Checking nb v0.1.3 [INFO] [stderr] Checking embedded-dma v0.1.2 [INFO] [stderr] Checking critical-section v0.2.8 [INFO] [stderr] Checking embedded-hal v0.2.7 [INFO] [stderr] Checking embedded-storage v0.2.0 [INFO] [stderr] Compiling nrf52833-hal v0.14.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking cast v0.3.0 [INFO] [stderr] Checking ufmt-write v0.1.0 [INFO] [stderr] Checking tiny-led-matrix v1.0.2 [INFO] [stderr] Compiling tug-of-war v0.1.1 (/opt/rustwide/workdir/tug-of-war) [INFO] [stderr] Checking panic-halt v0.2.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling bare-metal v0.2.5 [INFO] [stderr] Checking nrf-usbd v0.1.1 [INFO] [stderr] Checking rtt-target v0.3.1 [INFO] [stderr] Checking embed-mutex v0.1.0 (/opt/rustwide/workdir/embed-mutex) [INFO] [stderr] Checking panic-rtt-target v0.1.2 [INFO] [stderr] Compiling cortex-m-rt-macros v0.7.0 [INFO] [stderr] Checking microbit-common v0.12.0 [INFO] [stderr] Checking microbit-v2 v0.12.0 [INFO] [stdout] error: unwinding panics are not supported without std [INFO] [stdout] | [INFO] [stdout] = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding [INFO] [stdout] = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `tug-of-war` (bin "tug-of-war") due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "f9692f6b0f6e992427e6e5dae5ed8d6fbfd1bf6a0ddf6017535a87bc67aabd3a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f9692f6b0f6e992427e6e5dae5ed8d6fbfd1bf6a0ddf6017535a87bc67aabd3a", kill_on_drop: false }` [INFO] [stdout] f9692f6b0f6e992427e6e5dae5ed8d6fbfd1bf6a0ddf6017535a87bc67aabd3a [INFO] checking Congyuwang/microbit-tug-of-war against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCongyuwang%2Fmicrobit-tug-of-war" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Congyuwang/microbit-tug-of-war on toolchain dae34b759e282c069aa28752564694effd121a63 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Congyuwang/microbit-tug-of-war [INFO] finished tweaking git repo https://github.com/Congyuwang/microbit-tug-of-war [INFO] tweaked toml for git repo https://github.com/Congyuwang/microbit-tug-of-war written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Congyuwang/microbit-tug-of-war 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" "+dae34b759e282c069aa28752564694effd121a63" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c2adcdd958e94002615182a4fa2ade026f34d7ec750c589c24e66a06de656662 [INFO] running `Command { std: "docker" "start" "-a" "c2adcdd958e94002615182a4fa2ade026f34d7ec750c589c24e66a06de656662", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c2adcdd958e94002615182a4fa2ade026f34d7ec750c589c24e66a06de656662", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c2adcdd958e94002615182a4fa2ade026f34d7ec750c589c24e66a06de656662", kill_on_drop: false }` [INFO] [stdout] c2adcdd958e94002615182a4fa2ade026f34d7ec750c589c24e66a06de656662 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 340fdb273376c00e1dafe54a9e51acb1e5b291054911dec3ca65f4da91354312 [INFO] running `Command { std: "docker" "start" "-a" "340fdb273376c00e1dafe54a9e51acb1e5b291054911dec3ca65f4da91354312", kill_on_drop: false }` [INFO] [stderr] Copying to /tmp/fixit [INFO] [stderr] no edition found in manifest, probably 2015, skipping [INFO] running `Command { std: "docker" "inspect" "340fdb273376c00e1dafe54a9e51acb1e5b291054911dec3ca65f4da91354312", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "340fdb273376c00e1dafe54a9e51acb1e5b291054911dec3ca65f4da91354312", kill_on_drop: false }` [INFO] [stdout] 340fdb273376c00e1dafe54a9e51acb1e5b291054911dec3ca65f4da91354312