[INFO] cloning repository https://github.com/surpriseyou/rust-exercises [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/surpriseyou/rust-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsurpriseyou%2Frust-exercises", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsurpriseyou%2Frust-exercises'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f0e7e03ad067ed9942de396b85426643b7aa4d36 [INFO] testing surpriseyou/rust-exercises against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsurpriseyou%2Frust-exercises" "/workspace/builds/worker-29/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-29/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/surpriseyou/rust-exercises on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/surpriseyou/rust-exercises [INFO] finished tweaking git repo https://github.com/surpriseyou/rust-exercises [INFO] tweaked toml for git repo https://github.com/surpriseyou/rust-exercises written to /workspace/builds/worker-29/source/Cargo.toml [INFO] crate git repo https://github.com/surpriseyou/rust-exercises already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0509b4ca9752b45a052d951cb4e6345e27bcbae3102c5a3dc74bd01017d195ad [INFO] running `Command { std: "docker" "start" "-a" "0509b4ca9752b45a052d951cb4e6345e27bcbae3102c5a3dc74bd01017d195ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0509b4ca9752b45a052d951cb4e6345e27bcbae3102c5a3dc74bd01017d195ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0509b4ca9752b45a052d951cb4e6345e27bcbae3102c5a3dc74bd01017d195ad", kill_on_drop: false }` [INFO] [stdout] 0509b4ca9752b45a052d951cb4e6345e27bcbae3102c5a3dc74bd01017d195ad [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 173a51e62822949faeae2372b1fc6d6a0cb29375a8ba95462457fd24915d83d1 [INFO] running `Command { std: "docker" "start" "-a" "173a51e62822949faeae2372b1fc6d6a0cb29375a8ba95462457fd24915d83d1", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.97 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.10 [INFO] [stderr] Compiling colorful v0.2.1 [INFO] [stderr] Compiling getrandom v0.2.3 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.4 [INFO] [stderr] Compiling rust-samples v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `rand::thread_rng` [INFO] [stdout] --> src/exercises/day4.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use rand::thread_rng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Error`, `Read` [INFO] [stdout] --> src/exercises/day4.rs:4:15 [INFO] [stdout] | [INFO] [stdout] 4 | use std::io::{Error, Read}; [INFO] [stdout] | ^^^^^ ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::num::ParseIntError` [INFO] [stdout] --> src/exercises/day4.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::num::ParseIntError; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Color` [INFO] [stdout] --> src/main.rs:3:16 [INFO] [stdout] | [INFO] [stdout] 3 | use colorful::{Color, Colorful}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2m 48s [INFO] running `Command { std: "docker" "inspect" "173a51e62822949faeae2372b1fc6d6a0cb29375a8ba95462457fd24915d83d1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "173a51e62822949faeae2372b1fc6d6a0cb29375a8ba95462457fd24915d83d1", kill_on_drop: false }` [INFO] [stdout] 173a51e62822949faeae2372b1fc6d6a0cb29375a8ba95462457fd24915d83d1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5d975799e0bb6fa0a9bf05e5753bbafe7457547011346d0ea03d849e9322e889 [INFO] running `Command { std: "docker" "start" "-a" "5d975799e0bb6fa0a9bf05e5753bbafe7457547011346d0ea03d849e9322e889", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling rust-samples v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `rand::thread_rng` [INFO] [stdout] --> src/exercises/day4.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use rand::thread_rng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Error`, `Read` [INFO] [stdout] --> src/exercises/day4.rs:4:15 [INFO] [stdout] | [INFO] [stdout] 4 | use std::io::{Error, Read}; [INFO] [stdout] | ^^^^^ ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::num::ParseIntError` [INFO] [stdout] --> src/exercises/day4.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::num::ParseIntError; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Color` [INFO] [stdout] --> src/main.rs:3:16 [INFO] [stdout] | [INFO] [stdout] 3 | use colorful::{Color, Colorful}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.24s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_samples-0ce0342132e8d259) [INFO] running `Command { std: "docker" "inspect" "5d975799e0bb6fa0a9bf05e5753bbafe7457547011346d0ea03d849e9322e889", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5d975799e0bb6fa0a9bf05e5753bbafe7457547011346d0ea03d849e9322e889", kill_on_drop: false }` [INFO] [stdout] 5d975799e0bb6fa0a9bf05e5753bbafe7457547011346d0ea03d849e9322e889 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] d18586a9c767fc9d838c69a9bd05cbd4da7d1c6c3f209bd9653ff74b1cdd78cc [INFO] running `Command { std: "docker" "start" "-a" "d18586a9c767fc9d838c69a9bd05cbd4da7d1c6c3f209bd9653ff74b1cdd78cc", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unused import: `rand::thread_rng` [INFO] [stderr] --> src/exercises/day4.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use rand::thread_rng; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Error`, `Read` [INFO] [stderr] --> src/exercises/day4.rs:4:15 [INFO] [stderr] | [INFO] [stderr] 4 | use std::io::{Error, Read}; [INFO] [stderr] | ^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::num::ParseIntError` [INFO] [stderr] --> src/exercises/day4.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::num::ParseIntError; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Color` [INFO] [stderr] --> src/main.rs:3:16 [INFO] [stderr] | [INFO] [stderr] 3 | use colorful::{Color, Colorful}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `rust-samples` (bin "rust-samples" test) generated 4 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.65s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_samples-0ce0342132e8d259) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "d18586a9c767fc9d838c69a9bd05cbd4da7d1c6c3f209bd9653ff74b1cdd78cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d18586a9c767fc9d838c69a9bd05cbd4da7d1c6c3f209bd9653ff74b1cdd78cc", kill_on_drop: false }` [INFO] [stdout] d18586a9c767fc9d838c69a9bd05cbd4da7d1c6c3f209bd9653ff74b1cdd78cc