[INFO] cloning repository https://github.com/bartsmykla/codewars [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bartsmykla/codewars" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbartsmykla%2Fcodewars", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbartsmykla%2Fcodewars'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6e54ea175339e2eeea1dec3a775a137c542db26c [INFO] testing bartsmykla/codewars against beta-2021-09-08 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbartsmykla%2Fcodewars" "/workspace/builds/worker-15/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/bartsmykla/codewars on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/bartsmykla/codewars [INFO] finished tweaking git repo https://github.com/bartsmykla/codewars [INFO] tweaked toml for git repo https://github.com/bartsmykla/codewars written to /workspace/builds/worker-15/source/Cargo.toml [INFO] crate git repo https://github.com/bartsmykla/codewars already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 15ef6aaa8919132261cc9e23f9db7f1738dc715da4681a93e4a3574a1879258b [INFO] running `Command { std: "docker" "start" "-a" "15ef6aaa8919132261cc9e23f9db7f1738dc715da4681a93e4a3574a1879258b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "15ef6aaa8919132261cc9e23f9db7f1738dc715da4681a93e4a3574a1879258b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "15ef6aaa8919132261cc9e23f9db7f1738dc715da4681a93e4a3574a1879258b", kill_on_drop: false }` [INFO] [stdout] 15ef6aaa8919132261cc9e23f9db7f1738dc715da4681a93e4a3574a1879258b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 898f187a5cb3f279c058bd718f452249a790c84b806a76362c1b12aee9592e40 [INFO] running `Command { std: "docker" "start" "-a" "898f187a5cb3f279c058bd718f452249a790c84b806a76362c1b12aee9592e40", kill_on_drop: false }` [INFO] [stderr] Compiling codewars v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(as_cell, test)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/katas/k6_easy_balance_checking.rs:65:61 [INFO] [stdout] | [INFO] [stdout] 65 | fn parse_line(line: &str, balance: f64) -> Result> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `codewars` due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "898f187a5cb3f279c058bd718f452249a790c84b806a76362c1b12aee9592e40", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "898f187a5cb3f279c058bd718f452249a790c84b806a76362c1b12aee9592e40", kill_on_drop: false }` [INFO] [stdout] 898f187a5cb3f279c058bd718f452249a790c84b806a76362c1b12aee9592e40