[INFO] cloning repository https://github.com/mehcode/advent-of-code-2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mehcode/advent-of-code-2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmehcode%2Fadvent-of-code-2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmehcode%2Fadvent-of-code-2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9ce2fb02cf23ee9922d42d7feb3ed9f65682f74
[INFO] testing mehcode/advent-of-code-2018 against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmehcode%2Fadvent-of-code-2018" "/workspace/builds/worker-106/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-106/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mehcode/advent-of-code-2018 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-106/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/mehcode/advent-of-code-2018
[INFO] finished tweaking git repo https://github.com/mehcode/advent-of-code-2018
[INFO] tweaked toml for git repo https://github.com/mehcode/advent-of-code-2018 written to /workspace/builds/worker-106/source/Cargo.toml
[INFO] crate git repo https://github.com/mehcode/advent-of-code-2018 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ff81415f6a7eb63ada175de70be47c2089114b98fee5dff2a68ceb149f3a292
[INFO] running `Command { std: "docker" "start" "-a" "8ff81415f6a7eb63ada175de70be47c2089114b98fee5dff2a68ceb149f3a292", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ff81415f6a7eb63ada175de70be47c2089114b98fee5dff2a68ceb149f3a292", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ff81415f6a7eb63ada175de70be47c2089114b98fee5dff2a68ceb149f3a292", kill_on_drop: false }`
[INFO] [stdout] 8ff81415f6a7eb63ada175de70be47c2089114b98fee5dff2a68ceb149f3a292
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b54ac9ef1f058c174b48f031157595d3e1ba28f52a2eed6741cc697e6fc99d82
[INFO] running `Command { std: "docker" "start" "-a" "b54ac9ef1f058c174b48f031157595d3e1ba28f52a2eed6741cc697e6fc99d82", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure v0.1.3
[INFO] [stderr]    Compiling advent-of-code-2018 v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(type_ascription)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `advent-of-code-2018` due to 2 previous errors
[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] running `Command { std: "docker" "inspect" "b54ac9ef1f058c174b48f031157595d3e1ba28f52a2eed6741cc697e6fc99d82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b54ac9ef1f058c174b48f031157595d3e1ba28f52a2eed6741cc697e6fc99d82", kill_on_drop: false }`
[INFO] [stdout] b54ac9ef1f058c174b48f031157595d3e1ba28f52a2eed6741cc697e6fc99d82