[INFO] cloning repository https://github.com/B83C/rust_ledcube
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/B83C/rust_ledcube" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FB83C%2Frust_ledcube", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FB83C%2Frust_ledcube'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b626985de3cfb1bb574f7e150bd83b947e975f4d
[INFO] checking B83C/rust_ledcube against master#f8463896a9b36a04899c013bd8825a7fd29dd7a4 for pr-151920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FB83C%2Frust_ledcube" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/B83C/rust_ledcube
[INFO] finished tweaking git repo https://github.com/B83C/rust_ledcube
[INFO] tweaked toml for git repo https://github.com/B83C/rust_ledcube written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/B83C/rust_ledcube on toolchain f8463896a9b36a04899c013bd8825a7fd29dd7a4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/B83C/rust_ledcube 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" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded systick-monotonic v1.0.1
[INFO] [stderr]   Downloaded rtic-monotonic v1.0.0
[INFO] [stderr]   Downloaded volatile-register v0.2.1
[INFO] [stderr]   Downloaded tuple-iter v0.1.0
[INFO] [stderr]   Downloaded critical-section v1.1.1
[INFO] [stderr]   Downloaded fugit v0.3.6
[INFO] [stderr]   Downloaded rtic-core v1.0.0
[INFO] [stderr]   Downloaded atomic-polyfill v1.0.2
[INFO] [stderr]   Downloaded panic-probe v0.3.1
[INFO] [stderr]   Downloaded rtic-common v1.0.0-alpha.0
[INFO] [stderr]   Downloaded rtic-time v1.0.0-alpha.1
[INFO] [stderr]   Downloaded rtt-target v0.4.0
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.7.0
[INFO] [stderr]   Downloaded ufmt-write v0.1.0
[INFO] [stderr]   Downloaded seq-macro v0.3.3
[INFO] [stderr]   Downloaded rtic v2.0.0-alpha.2
[INFO] [stderr]   Downloaded bitflags v2.2.1
[INFO] [stderr]   Downloaded tinybmp v0.5.0
[INFO] [stderr]   Downloaded embedded-hal v1.0.0-alpha.8
[INFO] [stderr]   Downloaded stm32f4xx-hal v0.16.0
[INFO] [stderr]   Downloaded cortex-m-rt v0.7.3
[INFO] [stderr]   Downloaded embedded-storage v0.2.0
[INFO] [stderr]   Downloaded embedded-graphics v0.8.0
[INFO] [stderr]   Downloaded stm32f4 v0.15.1
[INFO] [stderr]   Downloaded rtic-macros v2.0.0-alpha.2
[INFO] [stderr]   Downloaded rtic-monotonics v1.0.0-alpha.2
[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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 061fb4c9fda5250de5c1c9ef41228382ccee4641c1a8be79507130e2036b9551
[INFO] running `Command { std: "docker" "start" "-a" "061fb4c9fda5250de5c1c9ef41228382ccee4641c1a8be79507130e2036b9551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "061fb4c9fda5250de5c1c9ef41228382ccee4641c1a8be79507130e2036b9551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "061fb4c9fda5250de5c1c9ef41228382ccee4641c1a8be79507130e2036b9551", kill_on_drop: false }`
[INFO] [stdout] 061fb4c9fda5250de5c1c9ef41228382ccee4641c1a8be79507130e2036b9551
[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=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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a1df309fd81f840fdb7cb89e419235bd676949971b9ebc8001cc8f48f79b0a0
[INFO] running `Command { std: "docker" "start" "-a" "0a1df309fd81f840fdb7cb89e419235bd676949971b9ebc8001cc8f48f79b0a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]     Checking critical-section v1.1.1
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking gcd v2.3.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling cortex-m-rt v0.7.3
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling atomic-polyfill v1.0.2
[INFO] [stderr]    Compiling stm32f4 v0.15.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking rtic-common v1.0.0-alpha.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]    Compiling panic-probe v0.3.1
[INFO] [stderr]    Compiling rtic v2.0.0-alpha.2
[INFO] [stderr]     Checking fugit v0.3.6
[INFO] [stderr]     Checking ufmt-write v0.1.0
[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]     Checking micromath v2.0.0
[INFO] [stderr]     Checking rtic-monotonic v1.0.0
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking time v0.3.21
[INFO] [stderr]     Checking embedded-dma v0.2.0
[INFO] [stderr]     Checking embedded-hal v1.0.0-alpha.8
[INFO] [stderr]     Checking embedded-storage v0.2.0
[INFO] [stderr]     Checking rtt-target v0.4.0
[INFO] [stderr]     Checking bitflags v2.2.1
[INFO] [stderr]     Checking rtic-core v1.0.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking futures-util v0.3.28
[INFO] [stderr]    Compiling seq-macro v0.3.3
[INFO] [stderr]     Checking fugit-timer v0.1.3
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0a1df309fd81f840fdb7cb89e419235bd676949971b9ebc8001cc8f48f79b0a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a1df309fd81f840fdb7cb89e419235bd676949971b9ebc8001cc8f48f79b0a0", kill_on_drop: false }`
[INFO] [stdout] 0a1df309fd81f840fdb7cb89e419235bd676949971b9ebc8001cc8f48f79b0a0
