[INFO] cloning repository https://github.com/royAmmerschuber/ws2812-pwm-dma
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/royAmmerschuber/ws2812-pwm-dma" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FroyAmmerschuber%2Fws2812-pwm-dma", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FroyAmmerschuber%2Fws2812-pwm-dma'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06cc4f6e1b8165a9d3673952a2c78c2b8b1ffb27
[INFO] checking royAmmerschuber/ws2812-pwm-dma against try#53f0b05ecbcf011a1f77f1c627304e87ebd05801 for pr-154492-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FroyAmmerschuber%2Fws2812-pwm-dma" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/royAmmerschuber/ws2812-pwm-dma
[INFO] finished tweaking git repo https://github.com/royAmmerschuber/ws2812-pwm-dma
[INFO] tweaked toml for git repo https://github.com/royAmmerschuber/ws2812-pwm-dma written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/royAmmerschuber/ws2812-pwm-dma on toolchain 53f0b05ecbcf011a1f77f1c627304e87ebd05801
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/royAmmerschuber/ws2812-pwm-dma 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" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6428fd323cdebd0998f2fcbf0a68d3be0e8a16fc3c7d2c0322d8c558f22b1ddb
[INFO] running `Command { std: "docker" "start" "-a" "6428fd323cdebd0998f2fcbf0a68d3be0e8a16fc3c7d2c0322d8c558f22b1ddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6428fd323cdebd0998f2fcbf0a68d3be0e8a16fc3c7d2c0322d8c558f22b1ddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6428fd323cdebd0998f2fcbf0a68d3be0e8a16fc3c7d2c0322d8c558f22b1ddb", kill_on_drop: false }`
[INFO] [stdout] 6428fd323cdebd0998f2fcbf0a68d3be0e8a16fc3c7d2c0322d8c558f22b1ddb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5348a3c37dc0a1c377c0672e7c9ade72231488396b628943fbe4a5a803f79641
[INFO] running `Command { std: "docker" "start" "-a" "5348a3c37dc0a1c377c0672e7c9ade72231488396b628943fbe4a5a803f79641", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]    Compiling cortex-m-rt v0.7.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling stm32f4 v0.15.1
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking gcd v2.3.0
[INFO] [stderr]     Checking time-core v0.1.0
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking fugit v0.3.6
[INFO] [stderr]     Checking embedded-dma v0.2.0
[INFO] [stderr]     Checking embedded-hal v1.0.0-alpha.8
[INFO] [stderr]     Checking time v0.3.20
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking embedded-storage v0.2.0
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rgb v0.8.36
[INFO] [stderr]     Checking fugit-timer v0.1.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking smart-leds-trait v0.2.1
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5348a3c37dc0a1c377c0672e7c9ade72231488396b628943fbe4a5a803f79641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5348a3c37dc0a1c377c0672e7c9ade72231488396b628943fbe4a5a803f79641", kill_on_drop: false }`
[INFO] [stdout] 5348a3c37dc0a1c377c0672e7c9ade72231488396b628943fbe4a5a803f79641
