[INFO] fetching crate playdate-build 0.4.4...
[INFO] testing playdate-build-0.4.4 against 1.91.0 for beta-1.92-2
[INFO] extracting crate playdate-build 0.4.4 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate playdate-build 0.4.4
[INFO] finished tweaking crates.io crate playdate-build 0.4.4
[INFO] tweaked toml for crates.io crate playdate-build 0.4.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate playdate-build 0.4.4 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate playdate-build 0.4.4 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded playdate-build-utils v0.3.10
[INFO] [stderr]   Downloaded pori v0.0.0
[INFO] [stderr]   Downloaded wax v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71ee30e67668422dc90b93fa033b5670197baece68b24ecebc46b46665bf8297
[INFO] running `Command { std: "docker" "start" "-a" "71ee30e67668422dc90b93fa033b5670197baece68b24ecebc46b46665bf8297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71ee30e67668422dc90b93fa033b5670197baece68b24ecebc46b46665bf8297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71ee30e67668422dc90b93fa033b5670197baece68b24ecebc46b46665bf8297", kill_on_drop: false }`
[INFO] [stdout] 71ee30e67668422dc90b93fa033b5670197baece68b24ecebc46b46665bf8297
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18d06aee8dedb7c86503733fb2247685f7fdf46c07b0178690e4cb7891afcc7a
[INFO] running `Command { std: "docker" "start" "-a" "18d06aee8dedb7c86503733fb2247685f7fdf46c07b0178690e4cb7891afcc7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling symlink v0.1.0
[INFO] [stderr]    Compiling fs_extra v1.3.0
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.34
[INFO] [stderr]    Compiling dirs-sys v0.5.0
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling pori v0.0.0
[INFO] [stderr]    Compiling dirs v6.0.0
[INFO] [stderr]    Compiling playdate-build-utils v0.3.10
[INFO] [stderr]    Compiling const_format v0.2.34
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling wax v0.6.0
[INFO] [stderr]    Compiling playdate-build v0.4.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io_error_more)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(slice_concat_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `playdate-build` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "18d06aee8dedb7c86503733fb2247685f7fdf46c07b0178690e4cb7891afcc7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18d06aee8dedb7c86503733fb2247685f7fdf46c07b0178690e4cb7891afcc7a", kill_on_drop: false }`
[INFO] [stdout] 18d06aee8dedb7c86503733fb2247685f7fdf46c07b0178690e4cb7891afcc7a