[INFO] cloning repository https://github.com/zxk7516/hellors [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zxk7516/hellors" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzxk7516%2Fhellors", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzxk7516%2Fhellors'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cea8d58a9916868e0348a27d17ecd136612ee239 [INFO] testing zxk7516/hellors against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzxk7516%2Fhellors" "/workspace/builds/worker-32/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-32/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/zxk7516/hellors on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/zxk7516/hellors [INFO] finished tweaking git repo https://github.com/zxk7516/hellors [INFO] tweaked toml for git repo https://github.com/zxk7516/hellors written to /workspace/builds/worker-32/source/Cargo.toml [INFO] crate git repo https://github.com/zxk7516/hellors already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tokio-sync v0.1.0 [INFO] [stderr] Downloaded bytes v0.4.11 [INFO] [stderr] Downloaded memoffset v0.2.1 [INFO] [stderr] Downloaded crossbeam v0.6.0 [INFO] [stderr] Downloaded tokio-fs v0.1.5 [INFO] [stderr] Downloaded byteorder v1.3.1 [INFO] [stderr] Downloaded crossbeam v0.7.1 [INFO] [stderr] Downloaded tokio-current-thread v0.1.4 [INFO] [stderr] Downloaded tokio-io v0.1.11 [INFO] [stderr] Downloaded crossbeam-utils v0.6.5 [INFO] [stderr] Downloaded tokio v0.1.15 [INFO] [stderr] Downloaded crossbeam-deque v0.6.3 [INFO] [stderr] Downloaded crossbeam-epoch v0.7.1 [INFO] [stderr] Downloaded tokio-timer v0.2.9 [INFO] [stderr] Downloaded mio v0.6.16 [INFO] [stderr] Downloaded tokio-executor v0.1.6 [INFO] [stderr] Downloaded tokio-threadpool v0.1.11 [INFO] [stderr] Downloaded rand_jitter v0.1.0 [INFO] [stderr] Downloaded tokio-reactor v0.1.8 [INFO] [stderr] Downloaded smallvec v0.6.8 [INFO] [stderr] Downloaded crossbeam-channel v0.3.7 [INFO] [stderr] Downloaded futures v0.1.25 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 98963b5d5ca8f8c114eb75e17a966a2ab0fc95d942a4a73f2e6866441e23853b [INFO] running `Command { std: "docker" "start" "-a" "98963b5d5ca8f8c114eb75e17a966a2ab0fc95d942a4a73f2e6866441e23853b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "98963b5d5ca8f8c114eb75e17a966a2ab0fc95d942a4a73f2e6866441e23853b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "98963b5d5ca8f8c114eb75e17a966a2ab0fc95d942a4a73f2e6866441e23853b", kill_on_drop: false }` [INFO] [stdout] 98963b5d5ca8f8c114eb75e17a966a2ab0fc95d942a4a73f2e6866441e23853b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 498b93ae58dcc00796f09080e4be97e04bf1507164975784d05227f483bb6952 [INFO] running `Command { std: "docker" "start" "-a" "498b93ae58dcc00796f09080e4be97e04bf1507164975784d05227f483bb6952", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling rand_jitter v0.1.0 [INFO] [stderr] Compiling tokio-sync v0.1.0 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Compiling crossbeam-queue v0.1.2 [INFO] [stderr] Compiling rand_os v0.1.1 [INFO] [stderr] Compiling num_cpus v1.9.0 [INFO] [stderr] Compiling crossbeam-channel v0.3.7 [INFO] [stderr] Compiling tokio-timer v0.2.9 [INFO] [stderr] Compiling tokio-io v0.1.11 [INFO] [stderr] Compiling mio v0.6.16 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling crossbeam-epoch v0.7.1 [INFO] [stderr] Compiling tokio-codec v0.1.1 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Compiling crossbeam-deque v0.6.3 [INFO] [stderr] Compiling crossbeam-deque v0.7.1 [INFO] [stderr] Compiling parking_lot v0.7.1 [INFO] [stderr] Compiling crossbeam v0.7.1 [INFO] [stderr] Compiling tokio-reactor v0.1.8 [INFO] [stderr] Compiling crossbeam v0.6.0 [INFO] [stderr] Compiling tokio-threadpool v0.1.11 [INFO] [stderr] Compiling tokio-tcp v0.1.3 [INFO] [stderr] Compiling tokio-udp v0.1.3 [INFO] [stderr] Compiling tokio-uds v0.2.5 [INFO] [stderr] Compiling tokio-fs v0.1.5 [INFO] [stderr] Compiling tokio v0.1.15 [INFO] [stderr] Compiling hello v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0601]: `main` function not found in crate `a4` [INFO] [stdout] | [INFO] [stdout] = note: consider adding a `main` function to `src/bin/a4.rs` [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 E0601`. [INFO] [stdout] [INFO] [stderr] error: could not compile `hello` due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/a2.rs:5:33 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn main() -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "498b93ae58dcc00796f09080e4be97e04bf1507164975784d05227f483bb6952", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "498b93ae58dcc00796f09080e4be97e04bf1507164975784d05227f483bb6952", kill_on_drop: false }` [INFO] [stdout] 498b93ae58dcc00796f09080e4be97e04bf1507164975784d05227f483bb6952