[INFO] fetching crate bootloader-x86_64-uefi 0.1.0-alpha.0...
[INFO] testing bootloader-x86_64-uefi-0.1.0-alpha.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate bootloader-x86_64-uefi 0.1.0-alpha.0 into /workspace/builds/worker-68/source
[INFO] validating manifest of crates.io crate bootloader-x86_64-uefi 0.1.0-alpha.0 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 crates.io crate bootloader-x86_64-uefi 0.1.0-alpha.0
[INFO] finished tweaking crates.io crate bootloader-x86_64-uefi 0.1.0-alpha.0
[INFO] tweaked toml for crates.io crate bootloader-x86_64-uefi 0.1.0-alpha.0 written to /workspace/builds/worker-68/source/Cargo.toml
[INFO] crate crates.io crate bootloader-x86_64-uefi 0.1.0-alpha.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bit_field v0.10.1
[INFO] [stderr]   Downloaded ucs2 v0.3.2
[INFO] [stderr]   Downloaded xmas-elf v0.8.0
[INFO] [stderr]   Downloaded spinning_top v0.2.4
[INFO] [stderr]   Downloaded usize_conversions v0.2.0
[INFO] [stderr]   Downloaded uefi-macros v0.5.0
[INFO] [stderr]   Downloaded bootloader-x86_64-common v0.1.0-alpha.0
[INFO] [stderr]   Downloaded bootloader_api v0.1.0-alpha.0
[INFO] [stderr]   Downloaded volatile v0.4.4
[INFO] [stderr]   Downloaded font8x8 v0.3.1
[INFO] [stderr]   Downloaded conquer-once v0.3.2
[INFO] [stderr]   Downloaded x86_64 v0.14.9
[INFO] [stderr]   Downloaded conquer-util v0.3.0
[INFO] [stderr]   Downloaded uefi v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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] d64188ae8e2816c83b12071cf07008820bab87ef6abd98488667b170e8ace0b8
[INFO] running `Command { std: "docker" "start" "-a" "d64188ae8e2816c83b12071cf07008820bab87ef6abd98488667b170e8ace0b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d64188ae8e2816c83b12071cf07008820bab87ef6abd98488667b170e8ace0b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d64188ae8e2816c83b12071cf07008820bab87ef6abd98488667b170e8ace0b8", kill_on_drop: false }`
[INFO] [stdout] d64188ae8e2816c83b12071cf07008820bab87ef6abd98488667b170e8ace0b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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] d4921ec4bd83a38544f085426b456925d7b8bfb8332e973640f1fdfb9ced4698
[INFO] running `Command { std: "docker" "start" "-a" "d4921ec4bd83a38544f085426b456925d7b8bfb8332e973640f1fdfb9ced4698", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling bit_field v0.10.1
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]    Compiling bootloader_api v0.1.0-alpha.0
[INFO] [stderr]    Compiling volatile v0.4.4
[INFO] [stderr]    Compiling zero v0.1.2
[INFO] [stderr]    Compiling conquer-util v0.3.0
[INFO] [stderr]    Compiling usize_conversions v0.2.0
[INFO] [stderr]    Compiling font8x8 v0.3.1
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/usize_conversions-0.2.0/src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(i128_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `i128_type` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `usize_conversions` due to 2 previous errors
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d4921ec4bd83a38544f085426b456925d7b8bfb8332e973640f1fdfb9ced4698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4921ec4bd83a38544f085426b456925d7b8bfb8332e973640f1fdfb9ced4698", kill_on_drop: false }`
[INFO] [stdout] d4921ec4bd83a38544f085426b456925d7b8bfb8332e973640f1fdfb9ced4698