[INFO] cloning repository https://github.com/ryankurte/rust-gba
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ryankurte/rust-gba" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryankurte%2Frust-gba", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryankurte%2Frust-gba'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d2af1b9a6eb7c55092d60580da604fc9cd6ee23
[INFO] testing ryankurte/rust-gba against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryankurte%2Frust-gba" "/workspace/builds/worker-33/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-33/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryankurte/rust-gba on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ryankurte/rust-gba
[INFO] finished tweaking git repo https://github.com/ryankurte/rust-gba
[INFO] tweaked toml for git repo https://github.com/ryankurte/rust-gba written to /workspace/builds/worker-33/source/Cargo.toml
[INFO] crate git repo https://github.com/ryankurte/rust-gba already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/ryankurte/rust-embedded-builder.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gba-proc-macro v0.5.0
[INFO] [stderr]   Downloaded gba v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 376dd5ba1bbf8345fc57ef1d9c3001a4bacd50e816b3e529188b3e313e25ea11
[INFO] running `Command { std: "docker" "start" "-a" "376dd5ba1bbf8345fc57ef1d9c3001a4bacd50e816b3e529188b3e313e25ea11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "376dd5ba1bbf8345fc57ef1d9c3001a4bacd50e816b3e529188b3e313e25ea11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "376dd5ba1bbf8345fc57ef1d9c3001a4bacd50e816b3e529188b3e313e25ea11", kill_on_drop: false }`
[INFO] [stdout] 376dd5ba1bbf8345fc57ef1d9c3001a4bacd50e816b3e529188b3e313e25ea11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7681d90a63299e622452150b2ba20846b54cb8b5d3c5939a03c61aa7a9949001
[INFO] running `Command { std: "docker" "start" "-a" "7681d90a63299e622452150b2ba20846b54cb8b5d3c5939a03c61aa7a9949001", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling embedded-builder v0.1.1 (https://github.com/ryankurte/rust-embedded-builder.git#c05135ec)
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/rust-embedded-builder-8a320f4f6e45243a/c05135e/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(used)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `used` has been stable since 1.30.0 and no longer requires an attribute to enable
[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 `embedded-builder` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7681d90a63299e622452150b2ba20846b54cb8b5d3c5939a03c61aa7a9949001", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7681d90a63299e622452150b2ba20846b54cb8b5d3c5939a03c61aa7a9949001", kill_on_drop: false }`
[INFO] [stdout] 7681d90a63299e622452150b2ba20846b54cb8b5d3c5939a03c61aa7a9949001