[INFO] cloning repository https://github.com/jamwaffles/arduino-m0-pro-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jamwaffles/arduino-m0-pro-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamwaffles%2Farduino-m0-pro-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamwaffles%2Farduino-m0-pro-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3f48a89c85867e72cae4984b03b89d2baaf2e3a
[INFO] testing jamwaffles/arduino-m0-pro-rust against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamwaffles%2Farduino-m0-pro-rust" "/workspace/builds/worker-51/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-51/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jamwaffles/arduino-m0-pro-rust on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-51/source/.cargo/config
[INFO] started tweaking git repo https://github.com/jamwaffles/arduino-m0-pro-rust
[INFO] finished tweaking git repo https://github.com/jamwaffles/arduino-m0-pro-rust
[INFO] tweaked toml for git repo https://github.com/jamwaffles/arduino-m0-pro-rust written to /workspace/builds/worker-51/source/Cargo.toml
[INFO] crate git repo https://github.com/jamwaffles/arduino-m0-pro-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5640186aecd7743cd77fbedfc58cc0b7112b8503e43c9605829646e1323fa4f
[INFO] running `Command { std: "docker" "start" "-a" "c5640186aecd7743cd77fbedfc58cc0b7112b8503e43c9605829646e1323fa4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5640186aecd7743cd77fbedfc58cc0b7112b8503e43c9605829646e1323fa4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5640186aecd7743cd77fbedfc58cc0b7112b8503e43c9605829646e1323fa4f", kill_on_drop: false }`
[INFO] [stdout] c5640186aecd7743cd77fbedfc58cc0b7112b8503e43c9605829646e1323fa4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a614bfffaf386db0a1e66d773a281888fa9aa998e321545e54c557052812784a
[INFO] running `Command { std: "docker" "start" "-a" "a614bfffaf386db0a1e66d773a281888fa9aa998e321545e54c557052812784a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cortex-m v0.5.6
[INFO] [stderr]    Compiling vcell v0.1.0
[INFO] [stderr]    Compiling cortex-m-rt v0.5.3
[INFO] [stderr]    Compiling aligned v0.2.0
[INFO] [stderr]    Compiling bare-metal v0.2.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling nb v0.1.1
[INFO] [stderr]    Compiling atsamd21g18a v0.2.1 (https://github.com/wez/atsamd21-rs?rev=cccbff253e90cdafb685f6edfb325f49b8f1fb27#cccbff25)
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.1
[INFO] [stderr]    Compiling ssd1306 v0.2.0
[INFO] [stderr]    Compiling metro_m0 v0.1.0 (https://github.com/wez/atsamd21-rs?rev=cccbff253e90cdafb685f6edfb325f49b8f1fb27#cccbff25)
[INFO] [stderr]    Compiling arduino-m0-pro-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling embedded-graphics v0.4.0
[INFO] [stderr]    Compiling volatile-register v0.2.0
[INFO] [stderr]    Compiling embedded-hal v0.2.1
[INFO] [stderr]    Compiling panic-semihosting v0.3.0
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-semihosting-0.3.0/src/lib.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | #![feature(panic_implementation)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: subsumed by `#[panic_handler]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `panic_implementation` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-semihosting-0.3.0/src/lib.rs:71:3
[INFO] [stdout]    |
[INFO] [stdout] 71 | #[panic_implementation]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `panic-semihosting` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/atsamd21-rs-20f8c148d9624e22/cccbff2/atsamd21g18a/src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(untagged_unions)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `atsamd21g18a` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a614bfffaf386db0a1e66d773a281888fa9aa998e321545e54c557052812784a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a614bfffaf386db0a1e66d773a281888fa9aa998e321545e54c557052812784a", kill_on_drop: false }`
[INFO] [stdout] a614bfffaf386db0a1e66d773a281888fa9aa998e321545e54c557052812784a