[INFO] cloning repository https://github.com/adamAndMath/traitlit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adamAndMath/traitlit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FadamAndMath%2Ftraitlit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FadamAndMath%2Ftraitlit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce4e93da4e58b7a3238d648fe3ac0732c2b4c94d
[INFO] testing adamAndMath/traitlit against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FadamAndMath%2Ftraitlit" "/workspace/builds/worker-29/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-29/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adamAndMath/traitlit on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/adamAndMath/traitlit
[INFO] finished tweaking git repo https://github.com/adamAndMath/traitlit
[INFO] tweaked toml for git repo https://github.com/adamAndMath/traitlit written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate git repo https://github.com/adamAndMath/traitlit already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.maintenance
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2df8be06ed6c5f745a0e0cc1f952a72a7f55c9f1820d54703ca4da81b507c617
[INFO] running `Command { std: "docker" "start" "-a" "2df8be06ed6c5f745a0e0cc1f952a72a7f55c9f1820d54703ca4da81b507c617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2df8be06ed6c5f745a0e0cc1f952a72a7f55c9f1820d54703ca4da81b507c617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2df8be06ed6c5f745a0e0cc1f952a72a7f55c9f1820d54703ca4da81b507c617", kill_on_drop: false }`
[INFO] [stdout] 2df8be06ed6c5f745a0e0cc1f952a72a7f55c9f1820d54703ca4da81b507c617
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08cb5d944702b0dfdfaba7b5876125f83d9adf1d70f716f04da7ed1c5df0e9b1
[INFO] running `Command { std: "docker" "start" "-a" "08cb5d944702b0dfdfaba7b5876125f83d9adf1d70f716f04da7ed1c5df0e9b1", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.maintenance
[INFO] [stderr]    Compiling syn v0.15.37
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling traitlit v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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] [stderr] error: could not compile `traitlit` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "08cb5d944702b0dfdfaba7b5876125f83d9adf1d70f716f04da7ed1c5df0e9b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08cb5d944702b0dfdfaba7b5876125f83d9adf1d70f716f04da7ed1c5df0e9b1", kill_on_drop: false }`
[INFO] [stdout] 08cb5d944702b0dfdfaba7b5876125f83d9adf1d70f716f04da7ed1c5df0e9b1