[INFO] cloning repository https://github.com/archer884/reduce [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/archer884/reduce" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Freduce", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Freduce'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 07e4c1012a109c390a30fe479b1837dc62544ab5 [INFO] testing archer884/reduce 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%2Farcher884%2Freduce" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/archer884/reduce 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/archer884/reduce [INFO] finished tweaking git repo https://github.com/archer884/reduce [INFO] tweaked toml for git repo https://github.com/archer884/reduce written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/archer884/reduce 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] [stderr] Updating git repository `https://github.com/archer884/iter-ord` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 481bdd6198a29878b404a0256fc6b36419804add94ff9fedb7d98cc0ae9e8499 [INFO] running `Command { std: "docker" "start" "-a" "481bdd6198a29878b404a0256fc6b36419804add94ff9fedb7d98cc0ae9e8499", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "481bdd6198a29878b404a0256fc6b36419804add94ff9fedb7d98cc0ae9e8499", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "481bdd6198a29878b404a0256fc6b36419804add94ff9fedb7d98cc0ae9e8499", kill_on_drop: false }` [INFO] [stdout] 481bdd6198a29878b404a0256fc6b36419804add94ff9fedb7d98cc0ae9e8499 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 35e21b0eb8a58533779f4dc054869d6caac929ce5cfaf019c3af418f54c03ccf [INFO] running `Command { std: "docker" "start" "-a" "35e21b0eb8a58533779f4dc054869d6caac929ce5cfaf019c3af418f54c03ccf", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling grabinput v0.1.1 [INFO] [stderr] Compiling iter-ord v0.1.0 (https://github.com/archer884/iter-ord#2e48d1aa) [INFO] [stderr] Compiling reduce 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(box_syntax)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fraction.rs:83:18 [INFO] [stdout] | [INFO] [stdout] 83 | IntParse(Box), [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 2015) 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 `reduce` due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "35e21b0eb8a58533779f4dc054869d6caac929ce5cfaf019c3af418f54c03ccf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "35e21b0eb8a58533779f4dc054869d6caac929ce5cfaf019c3af418f54c03ccf", kill_on_drop: false }` [INFO] [stdout] 35e21b0eb8a58533779f4dc054869d6caac929ce5cfaf019c3af418f54c03ccf