[INFO] fetching crate proka-bootloader 0.4.1...
[INFO] testing proka-bootloader-0.4.1 against 1.95.0 for beta-1.96-1
[INFO] extracting crate proka-bootloader 0.4.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate proka-bootloader 0.4.1
[INFO] finished tweaking crates.io crate proka-bootloader 0.4.1
[INFO] tweaked toml for crates.io crate proka-bootloader 0.4.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate proka-bootloader 0.4.1 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate proka-bootloader 0.4.1 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" "+1.95.0" "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 bitflags v2.11.1
[INFO] [stderr]   Downloaded quote v1.0.45
[INFO] [stderr]   Downloaded ptr_meta_derive v0.3.1
[INFO] [stderr]   Downloaded ptr_meta v0.3.1
[INFO] [stderr]   Downloaded bit_field v0.10.3
[INFO] [stderr]   Downloaded ucs2 v0.3.3
[INFO] [stderr]   Downloaded uguid v2.2.0
[INFO] [stderr]   Downloaded cfg-if v1.0.4
[INFO] [stderr]   Downloaded unicode-ident v1.0.24
[INFO] [stderr]   Downloaded uefi-macros v0.18.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.106
[INFO] [stderr]   Downloaded uefi-raw v0.11.0
[INFO] [stderr]   Downloaded log v0.4.29
[INFO] [stderr]   Downloaded syn v2.0.117
[INFO] [stderr]   Downloaded uefi v0.35.0
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d993b433a33a5453dfbdd74da5e6f488e6f3a5c2454bcd3a4a2849dae699df00
[INFO] running `Command { std: "docker" "start" "-a" "d993b433a33a5453dfbdd74da5e6f488e6f3a5c2454bcd3a4a2849dae699df00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d993b433a33a5453dfbdd74da5e6f488e6f3a5c2454bcd3a4a2849dae699df00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d993b433a33a5453dfbdd74da5e6f488e6f3a5c2454bcd3a4a2849dae699df00", kill_on_drop: false }`
[INFO] [stdout] d993b433a33a5453dfbdd74da5e6f488e6f3a5c2454bcd3a4a2849dae699df00
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db2d9779b3ef635d03ec37b923f012079beccaf35b03014b64d0e4543ff1d427
[INFO] running `Command { std: "docker" "start" "-a" "db2d9779b3ef635d03ec37b923f012079beccaf35b03014b64d0e4543ff1d427", kill_on_drop: false }`
[INFO] [stderr]    Compiling proka-bootloader v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(custom_test_frameworks)]
[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 `proka-bootloader` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "db2d9779b3ef635d03ec37b923f012079beccaf35b03014b64d0e4543ff1d427", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db2d9779b3ef635d03ec37b923f012079beccaf35b03014b64d0e4543ff1d427", kill_on_drop: false }`
[INFO] [stdout] db2d9779b3ef635d03ec37b923f012079beccaf35b03014b64d0e4543ff1d427