[INFO] cloning repository https://github.com/prowe/rust_guessing_game [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/prowe/rust_guessing_game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprowe%2Frust_guessing_game", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprowe%2Frust_guessing_game'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1758a22df4bc58622ae526b8dc6b8d5102aabfa2 [INFO] testing prowe/rust_guessing_game against 1.60.0 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprowe%2Frust_guessing_game" "/workspace/builds/worker-13/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/prowe/rust_guessing_game on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/prowe/rust_guessing_game [INFO] finished tweaking git repo https://github.com/prowe/rust_guessing_game [INFO] tweaked toml for git repo https://github.com/prowe/rust_guessing_game written to /workspace/builds/worker-13/source/Cargo.toml [INFO] crate git repo https://github.com/prowe/rust_guessing_game already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded libc v0.2.28 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 343f7bea946bf505205a54505f3abc2ff73ae191b27689852505752bf02f22a6 [INFO] running `Command { std: "docker" "start" "-a" "343f7bea946bf505205a54505f3abc2ff73ae191b27689852505752bf02f22a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "343f7bea946bf505205a54505f3abc2ff73ae191b27689852505752bf02f22a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "343f7bea946bf505205a54505f3abc2ff73ae191b27689852505752bf02f22a6", kill_on_drop: false }` [INFO] [stdout] 343f7bea946bf505205a54505f3abc2ff73ae191b27689852505752bf02f22a6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 6f92299c3e85402b8b44dd499234ebbec157b0e32adabf2452f0b16f757681ab [INFO] running `Command { std: "docker" "start" "-a" "6f92299c3e85402b8b44dd499234ebbec157b0e32adabf2452f0b16f757681ab", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.28 [INFO] [stderr] Compiling rand v0.3.16 [INFO] [stderr] Compiling guessing_game v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::result` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::result; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:29:32 [INFO] [stdout] | [INFO] [stdout] 29 | fn read_guess() -> Result { [INFO] [stdout] | ^^^^^ [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] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 29 - fn read_guess() -> Result { [INFO] [stdout] 29 + fn read_guess() -> Result { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the size for values of type `(dyn std::error::Error + 'static)` cannot be known at compilation time [INFO] [stdout] --> src/main.rs:29:20 [INFO] [stdout] | [INFO] [stdout] 29 | fn read_guess() -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time [INFO] [stdout] | [INFO] [stdout] = help: the trait `Sized` is not implemented for `(dyn std::error::Error + 'static)` [INFO] [stdout] note: required by a bound in `Result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `guessing_game` due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "6f92299c3e85402b8b44dd499234ebbec157b0e32adabf2452f0b16f757681ab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6f92299c3e85402b8b44dd499234ebbec157b0e32adabf2452f0b16f757681ab", kill_on_drop: false }` [INFO] [stdout] 6f92299c3e85402b8b44dd499234ebbec157b0e32adabf2452f0b16f757681ab