[INFO] cloning repository https://github.com/Dokuro-YH/microbit-v2-examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dokuro-YH/microbit-v2-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDokuro-YH%2Fmicrobit-v2-examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDokuro-YH%2Fmicrobit-v2-examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1dc89ee94aafdeb88002c58ab6ce31398a43585e
[INFO] checking Dokuro-YH/microbit-v2-examples against try#438eb4c1a1c3841523d7f672601e8adbe04cff28 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDokuro-YH%2Fmicrobit-v2-examples" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/Dokuro-YH/microbit-v2-examples
[INFO] finished tweaking git repo https://github.com/Dokuro-YH/microbit-v2-examples
[INFO] tweaked toml for git repo https://github.com/Dokuro-YH/microbit-v2-examples written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Dokuro-YH/microbit-v2-examples on toolchain 438eb4c1a1c3841523d7f672601e8adbe04cff28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Dokuro-YH/microbit-v2-examples 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" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 076de0e26e2efbef5761270ebb7099a85557d4a530dd8e100fa69d6c5850279a
[INFO] running `Command { std: "docker" "start" "-a" "076de0e26e2efbef5761270ebb7099a85557d4a530dd8e100fa69d6c5850279a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "076de0e26e2efbef5761270ebb7099a85557d4a530dd8e100fa69d6c5850279a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "076de0e26e2efbef5761270ebb7099a85557d4a530dd8e100fa69d6c5850279a", kill_on_drop: false }`
[INFO] [stdout] 076de0e26e2efbef5761270ebb7099a85557d4a530dd8e100fa69d6c5850279a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5d7832baa75d8818f2e4acd936a68729f51932e89efad1d7ab35b04bf496916
[INFO] running `Command { std: "docker" "start" "-a" "d5d7832baa75d8818f2e4acd936a68729f51932e89efad1d7ab35b04bf496916", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling cortex-m v0.7.6
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking critical-section v1.1.1
[INFO] [stderr]    Compiling cortex-m-rt v0.7.2
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]    Compiling defmt v0.3.2
[INFO] [stderr]    Compiling fixed v1.20.0
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stderr]    Compiling nrf52833-pac v0.10.1
[INFO] [stderr]    Compiling defmt-macros v0.3.3
[INFO] [stderr]    Compiling nrf-hal-common v0.14.1
[INFO] [stderr]     Checking bytemuck v1.12.3
[INFO] [stderr]     Checking usb-device v0.2.9
[INFO] [stderr]    Compiling defmt-parser v0.3.1
[INFO] [stderr]     Checking half v2.1.0
[INFO] [stderr]    Compiling indexmap v1.9.2
[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]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling nrf52833-hal v0.14.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking embedded-storage v0.2.0
[INFO] [stderr]     Checking tiny-led-matrix v1.0.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking spin v0.9.4
[INFO] [stderr]    Compiling cortex-m-rtic v1.1.3
[INFO] [stderr]    Compiling panic-probe v0.3.0
[INFO] [stderr]    Compiling defmt-rtt v0.4.0
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]     Checking gcd v2.2.0
[INFO] [stderr]     Checking rtic-monotonic v1.0.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking rtic-core v1.0.0
[INFO] [stderr]     Checking lsm303agr v0.2.2
[INFO] [stderr]     Checking microbit-text v1.0.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking nrf-usbd v0.1.1
[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" "d5d7832baa75d8818f2e4acd936a68729f51932e89efad1d7ab35b04bf496916", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5d7832baa75d8818f2e4acd936a68729f51932e89efad1d7ab35b04bf496916", kill_on_drop: false }`
[INFO] [stdout] d5d7832baa75d8818f2e4acd936a68729f51932e89efad1d7ab35b04bf496916
