[INFO] cloning repository https://github.com/eric-wood/pi-pico-midi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eric-wood/pi-pico-midi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feric-wood%2Fpi-pico-midi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feric-wood%2Fpi-pico-midi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3bfc754b04a1bfd873139a49a3cbe6e70ada5172
[INFO] checking eric-wood/pi-pico-midi against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feric-wood%2Fpi-pico-midi" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/eric-wood/pi-pico-midi
[INFO] finished tweaking git repo https://github.com/eric-wood/pi-pico-midi
[INFO] tweaked toml for git repo https://github.com/eric-wood/pi-pico-midi written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/eric-wood/pi-pico-midi on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/eric-wood/pi-pico-midi 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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 330cd2789c353ff5aba6c5a708cc56e83172eb2f4e89f7da6cec6230268f7085
[INFO] running `Command { std: "docker" "start" "-a" "330cd2789c353ff5aba6c5a708cc56e83172eb2f4e89f7da6cec6230268f7085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "330cd2789c353ff5aba6c5a708cc56e83172eb2f4e89f7da6cec6230268f7085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "330cd2789c353ff5aba6c5a708cc56e83172eb2f4e89f7da6cec6230268f7085", kill_on_drop: false }`
[INFO] [stdout] 330cd2789c353ff5aba6c5a708cc56e83172eb2f4e89f7da6cec6230268f7085
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8149b83f81ab2337294db2f1d3d3cdb2f3bb1060efb4b052748ec783f064fd16
[INFO] running `Command { std: "docker" "start" "-a" "8149b83f81ab2337294db2f1d3d3cdb2f3bb1060efb4b052748ec783f064fd16", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling cortex-m-rt v0.7.2
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling cortex-m v0.7.6
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling paste v1.0.11
[INFO] [stderr]    Compiling debug-helper v0.3.13
[INFO] [stderr]    Compiling defmt-macros v0.3.3
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling defmt v0.3.2
[INFO] [stderr]    Compiling rp2040-pac v0.4.0
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]    Compiling crc-any v2.4.3
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling defmt-parser v0.3.1
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking gcd v2.2.0
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking critical-section v1.1.1
[INFO] [stderr]     Checking fugit v0.3.6
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking usb-device v0.2.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling rp-pico v0.6.0
[INFO] [stderr]     Checking midi-types v0.1.5
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]    Compiling rp2040-boot2 v0.2.1
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking embedded-midi v0.1.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.49/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] [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" "8149b83f81ab2337294db2f1d3d3cdb2f3bb1060efb4b052748ec783f064fd16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8149b83f81ab2337294db2f1d3d3cdb2f3bb1060efb4b052748ec783f064fd16", kill_on_drop: false }`
[INFO] [stdout] 8149b83f81ab2337294db2f1d3d3cdb2f3bb1060efb4b052748ec783f064fd16