[INFO] cloning repository https://github.com/Luchanso/rust-learn [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Luchanso/rust-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLuchanso%2Frust-learn", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLuchanso%2Frust-learn'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6f3bc4f35834197e94e13a271bf62e27df2dc4da [INFO] testing Luchanso/rust-learn 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%2FLuchanso%2Frust-learn" "/workspace/builds/worker-86/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-86/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Luchanso/rust-learn 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/Luchanso/rust-learn [INFO] finished tweaking git repo https://github.com/Luchanso/rust-learn [INFO] tweaked toml for git repo https://github.com/Luchanso/rust-learn written to /workspace/builds/worker-86/source/Cargo.toml [INFO] crate git repo https://github.com/Luchanso/rust-learn 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-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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] 394eb135e99ec3b33f2bdb10bd1843563433e6a542a3bafdbd66a8e480e910aa [INFO] running `Command { std: "docker" "start" "-a" "394eb135e99ec3b33f2bdb10bd1843563433e6a542a3bafdbd66a8e480e910aa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "394eb135e99ec3b33f2bdb10bd1843563433e6a542a3bafdbd66a8e480e910aa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "394eb135e99ec3b33f2bdb10bd1843563433e6a542a3bafdbd66a8e480e910aa", kill_on_drop: false }` [INFO] [stdout] 394eb135e99ec3b33f2bdb10bd1843563433e6a542a3bafdbd66a8e480e910aa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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] 5611d0a4fd85cf1b2aa7d383006124365ce3ae76091021c90ae0e3aa55ddca44 [INFO] running `Command { std: "docker" "start" "-a" "5611d0a4fd85cf1b2aa7d383006124365ce3ae76091021c90ae0e3aa55ddca44", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling rust-learn v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(test)] [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 `rust-learn` due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "5611d0a4fd85cf1b2aa7d383006124365ce3ae76091021c90ae0e3aa55ddca44", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5611d0a4fd85cf1b2aa7d383006124365ce3ae76091021c90ae0e3aa55ddca44", kill_on_drop: false }` [INFO] [stdout] 5611d0a4fd85cf1b2aa7d383006124365ce3ae76091021c90ae0e3aa55ddca44