[INFO] cloning repository https://github.com/dandelion-blanc/practice03_file_io [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dandelion-blanc/practice03_file_io" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdandelion-blanc%2Fpractice03_file_io", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdandelion-blanc%2Fpractice03_file_io'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 159d791aef8ac6ea074fc75256178c78bdaaa418 [INFO] testing dandelion-blanc/practice03_file_io against master#61469b682c2b0bf9cebc4622f1859e2bb3b7ebca for pr-91743 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdandelion-blanc%2Fpractice03_file_io" "/workspace/builds/worker-58/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-58/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dandelion-blanc/practice03_file_io on toolchain 61469b682c2b0bf9cebc4622f1859e2bb3b7ebca [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+61469b682c2b0bf9cebc4622f1859e2bb3b7ebca" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dandelion-blanc/practice03_file_io [INFO] finished tweaking git repo https://github.com/dandelion-blanc/practice03_file_io [INFO] tweaked toml for git repo https://github.com/dandelion-blanc/practice03_file_io written to /workspace/builds/worker-58/source/Cargo.toml [INFO] crate git repo https://github.com/dandelion-blanc/practice03_file_io already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+61469b682c2b0bf9cebc4622f1859e2bb3b7ebca" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+61469b682c2b0bf9cebc4622f1859e2bb3b7ebca" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e049bb43cf909bccb0c3f2fb991e5eab14fb73c8837fd1b5ab90acf841dbe922 [INFO] running `Command { std: "docker" "start" "-a" "e049bb43cf909bccb0c3f2fb991e5eab14fb73c8837fd1b5ab90acf841dbe922", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e049bb43cf909bccb0c3f2fb991e5eab14fb73c8837fd1b5ab90acf841dbe922", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e049bb43cf909bccb0c3f2fb991e5eab14fb73c8837fd1b5ab90acf841dbe922", kill_on_drop: false }` [INFO] [stdout] e049bb43cf909bccb0c3f2fb991e5eab14fb73c8837fd1b5ab90acf841dbe922 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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=forbid" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+61469b682c2b0bf9cebc4622f1859e2bb3b7ebca" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 370f5d84ac183f589fb864fb4ffe3a0a622aab660e28d939685e8a76109c8f33 [INFO] running `Command { std: "docker" "start" "-a" "370f5d84ac183f589fb864fb4ffe3a0a622aab660e28d939685e8a76109c8f33", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling practice03_file_io v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:28:29 [INFO] [stdout] | [INFO] [stdout] 28 | fn main() -> Result<(), Box> [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 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 28 - fn main() -> Result<(), Box> [INFO] [stdout] 28 + fn main() -> Result<(), Box> [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `string_line` [INFO] [stdout] --> src/main.rs:15:4 [INFO] [stdout] | [INFO] [stdout] 15 | fn string_line(s: &String) -> &str [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.65s [INFO] running `Command { std: "docker" "inspect" "370f5d84ac183f589fb864fb4ffe3a0a622aab660e28d939685e8a76109c8f33", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "370f5d84ac183f589fb864fb4ffe3a0a622aab660e28d939685e8a76109c8f33", kill_on_drop: false }` [INFO] [stdout] 370f5d84ac183f589fb864fb4ffe3a0a622aab660e28d939685e8a76109c8f33 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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=forbid" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+61469b682c2b0bf9cebc4622f1859e2bb3b7ebca" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] defca0eb2a7c21bedc79fd64d9446391865712ebdff2878a13105602c0c02bc8 [INFO] running `Command { std: "docker" "start" "-a" "defca0eb2a7c21bedc79fd64d9446391865712ebdff2878a13105602c0c02bc8", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling practice03_file_io v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:28:29 [INFO] [stdout] | [INFO] [stdout] 28 | fn main() -> Result<(), Box> [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 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 28 - fn main() -> Result<(), Box> [INFO] [stdout] 28 + fn main() -> Result<(), Box> [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `string_line` [INFO] [stdout] --> src/main.rs:15:4 [INFO] [stdout] | [INFO] [stdout] 15 | fn string_line(s: &String) -> &str [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.04s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/practice03_file_io-7c96f5b9dabc10b3) [INFO] running `Command { std: "docker" "inspect" "defca0eb2a7c21bedc79fd64d9446391865712ebdff2878a13105602c0c02bc8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "defca0eb2a7c21bedc79fd64d9446391865712ebdff2878a13105602c0c02bc8", kill_on_drop: false }` [INFO] [stdout] defca0eb2a7c21bedc79fd64d9446391865712ebdff2878a13105602c0c02bc8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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=forbid" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+61469b682c2b0bf9cebc4622f1859e2bb3b7ebca" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 571cbafc707baa5ceb73348b658d7355aaad8d5613a0895373a677aae86ff012 [INFO] running `Command { std: "docker" "start" "-a" "571cbafc707baa5ceb73348b658d7355aaad8d5613a0895373a677aae86ff012", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:28:29 [INFO] [stderr] | [INFO] [stderr] 28 | fn main() -> Result<(), Box> [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 28 - fn main() -> Result<(), Box> [INFO] [stderr] 28 + fn main() -> Result<(), Box> [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: function is never used: `string_line` [INFO] [stderr] --> src/main.rs:15:4 [INFO] [stderr] | [INFO] [stderr] 15 | fn string_line(s: &String) -> &str [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `practice03_file_io` (bin "practice03_file_io" test) generated 2 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.75s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/practice03_file_io-7c96f5b9dabc10b3) [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" "571cbafc707baa5ceb73348b658d7355aaad8d5613a0895373a677aae86ff012", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "571cbafc707baa5ceb73348b658d7355aaad8d5613a0895373a677aae86ff012", kill_on_drop: false }` [INFO] [stdout] 571cbafc707baa5ceb73348b658d7355aaad8d5613a0895373a677aae86ff012