[INFO] cloning repository https://github.com/arata-nvm/acceolar
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arata-nvm/acceolar" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farata-nvm%2Facceolar", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farata-nvm%2Facceolar'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7fea3f1f3f0c115ef6721bfc3805c9dbcdd8f7ee
[INFO] testing arata-nvm/acceolar against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farata-nvm%2Facceolar" "/workspace/builds/worker-24/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-24/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arata-nvm/acceolar 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] removed /workspace/builds/worker-24/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/arata-nvm/acceolar
[INFO] finished tweaking git repo https://github.com/arata-nvm/acceolar
[INFO] tweaked toml for git repo https://github.com/arata-nvm/acceolar written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] crate git repo https://github.com/arata-nvm/acceolar 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 bootloader v0.9.22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] df9fd87d054eca39069c20b4704b82164f3c3c72c7a9784a8f2ef86a19f301e1
[INFO] running `Command { std: "docker" "start" "-a" "df9fd87d054eca39069c20b4704b82164f3c3c72c7a9784a8f2ef86a19f301e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df9fd87d054eca39069c20b4704b82164f3c3c72c7a9784a8f2ef86a19f301e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df9fd87d054eca39069c20b4704b82164f3c3c72c7a9784a8f2ef86a19f301e1", kill_on_drop: false }`
[INFO] [stdout] df9fd87d054eca39069c20b4704b82164f3c3c72c7a9784a8f2ef86a19f301e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] 65cf441200b0aa407d8d521de3ffcdfc40b22dd6a7113533071c9593bc4e987c
[INFO] running `Command { std: "docker" "start" "-a" "65cf441200b0aa407d8d521de3ffcdfc40b22dd6a7113533071c9593bc4e987c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling bootloader v0.9.22
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling spin v0.9.2
[INFO] [stderr]    Compiling acceolar v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(once_cell)]
[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:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(format_args_nl)]
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `acceolar` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "65cf441200b0aa407d8d521de3ffcdfc40b22dd6a7113533071c9593bc4e987c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65cf441200b0aa407d8d521de3ffcdfc40b22dd6a7113533071c9593bc4e987c", kill_on_drop: false }`
[INFO] [stdout] 65cf441200b0aa407d8d521de3ffcdfc40b22dd6a7113533071c9593bc4e987c