[INFO] cloning repository https://github.com/fmckeogh/star_fc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fmckeogh/star_fc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffmckeogh%2Fstar_fc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffmckeogh%2Fstar_fc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 419bb07dda78175b43ff4f38cb9b9a33500a0b08
[INFO] testing fmckeogh/star_fc against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffmckeogh%2Fstar_fc" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/fmckeogh/star_fc
[INFO] finished tweaking git repo https://github.com/fmckeogh/star_fc
[INFO] tweaked toml for git repo https://github.com/fmckeogh/star_fc written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/fmckeogh/star_fc on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/fmckeogh/star_fc 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded defmt v0.3.3
[INFO] [stderr]   Downloaded seq-macro v0.3.3
[INFO] [stderr]   Downloaded defmt-macros v0.3.4
[INFO] [stderr]   Downloaded feather_m0 v0.12.1
[INFO] [stderr]   Downloaded defmt-parser v0.3.2
[INFO] [stderr]   Downloaded atsamd-hal v0.15.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f55d8214b667f10e03fc300aba4d0431c723fa74609345bdefe455450fe1659d
[INFO] running `Command { std: "docker" "start" "-a" "f55d8214b667f10e03fc300aba4d0431c723fa74609345bdefe455450fe1659d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f55d8214b667f10e03fc300aba4d0431c723fa74609345bdefe455450fe1659d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f55d8214b667f10e03fc300aba4d0431c723fa74609345bdefe455450fe1659d", kill_on_drop: false }`
[INFO] [stdout] f55d8214b667f10e03fc300aba4d0431c723fa74609345bdefe455450fe1659d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e097dada1b8c3ea7880b1edea323e40ce14a25ed336542b7b221a688944652e
[INFO] running `Command { std: "docker" "start" "-a" "0e097dada1b8c3ea7880b1edea323e40ce14a25ed336542b7b221a688944652e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.54
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling cortex-m-rt v0.7.3
[INFO] [stderr]    Compiling paste v1.0.12
[INFO] [stderr]    Compiling critical-section v1.1.1
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling defmt v0.3.3
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling volatile-register v0.2.1
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling defmt-macros v0.3.4
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling gcd v2.3.0
[INFO] [stderr]    Compiling rtic-monotonic v1.0.0
[INFO] [stderr]    Compiling atsamd21g v0.12.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling fugit v0.3.6
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling cortex-m-rtic v1.1.4
[INFO] [stderr]    Compiling seq-macro v0.3.3
[INFO] [stderr]    Compiling feather_m0 v0.12.1
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.54/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]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling defmt-rtt v0.4.0
[INFO] [stderr]    Compiling spin v0.9.7
[INFO] [stderr]    Compiling starfc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling bare-metal v1.0.0
[INFO] [stderr]    Compiling rtic-core v1.0.0
[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" "0e097dada1b8c3ea7880b1edea323e40ce14a25ed336542b7b221a688944652e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e097dada1b8c3ea7880b1edea323e40ce14a25ed336542b7b221a688944652e", kill_on_drop: false }`
[INFO] [stdout] 0e097dada1b8c3ea7880b1edea323e40ce14a25ed336542b7b221a688944652e