[INFO] cloning repository https://github.com/peniqliotuv/learning-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/peniqliotuv/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeniqliotuv%2Flearning-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeniqliotuv%2Flearning-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1aa7ae42c3950f2cb0374926fb42ae0fed2854ef [INFO] testing peniqliotuv/learning-rust against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeniqliotuv%2Flearning-rust" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/peniqliotuv/learning-rust 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/peniqliotuv/learning-rust [INFO] finished tweaking git repo https://github.com/peniqliotuv/learning-rust [INFO] tweaked toml for git repo https://github.com/peniqliotuv/learning-rust written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/peniqliotuv/learning-rust 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 97fd3dfc641df3105265ad4c409f9b54c6589ae6d0f64163fd3d6d965df8c888 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "97fd3dfc641df3105265ad4c409f9b54c6589ae6d0f64163fd3d6d965df8c888", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "97fd3dfc641df3105265ad4c409f9b54c6589ae6d0f64163fd3d6d965df8c888", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "97fd3dfc641df3105265ad4c409f9b54c6589ae6d0f64163fd3d6d965df8c888", kill_on_drop: false }` [INFO] [stdout] 97fd3dfc641df3105265ad4c409f9b54c6589ae6d0f64163fd3d6d965df8c888 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] ba0aae0f5e322add6e2350ff422ce1232505c19f32e10dc2c02d9d7fee1d116b [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "ba0aae0f5e322add6e2350ff422ce1232505c19f32e10dc2c02d9d7fee1d116b", kill_on_drop: false }` [INFO] [stderr] Compiling minigrep v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `file_contents` [INFO] [stdout] --> src/lib.rs:5:7 [INFO] [stdout] | [INFO] [stdout] 5 | let file_contents = fs::read_to_string(config.filename)?; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_contents` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/main.rs:9:51 [INFO] [stdout] | [INFO] [stdout] 9 | let config = Config::new(&args).unwrap_or_else(|e| { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.28s [INFO] running `Command { std: "docker" "inspect" "ba0aae0f5e322add6e2350ff422ce1232505c19f32e10dc2c02d9d7fee1d116b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ba0aae0f5e322add6e2350ff422ce1232505c19f32e10dc2c02d9d7fee1d116b", kill_on_drop: false }` [INFO] [stdout] ba0aae0f5e322add6e2350ff422ce1232505c19f32e10dc2c02d9d7fee1d116b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "test" "--frozen" "--no-run" "--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] 2287ed834494cfb5e8cbd068048cb912342a737f1b1cbbae7abc12afbc5791ff [INFO] running `Command { std: "docker" "start" "-a" "2287ed834494cfb5e8cbd068048cb912342a737f1b1cbbae7abc12afbc5791ff", kill_on_drop: false }` [INFO] [stderr] Compiling minigrep v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `file_contents` [INFO] [stdout] --> src/lib.rs:5:7 [INFO] [stdout] | [INFO] [stdout] 5 | let file_contents = fs::read_to_string(config.filename)?; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_contents` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/main.rs:9:51 [INFO] [stdout] | [INFO] [stdout] 9 | let config = Config::new(&args).unwrap_or_else(|e| { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `file_contents` [INFO] [stdout] --> src/lib.rs:5:7 [INFO] [stdout] | [INFO] [stdout] 5 | let file_contents = fs::read_to_string(config.filename)?; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_contents` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.61s [INFO] running `Command { std: "docker" "inspect" "2287ed834494cfb5e8cbd068048cb912342a737f1b1cbbae7abc12afbc5791ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2287ed834494cfb5e8cbd068048cb912342a737f1b1cbbae7abc12afbc5791ff", kill_on_drop: false }` [INFO] [stdout] 2287ed834494cfb5e8cbd068048cb912342a737f1b1cbbae7abc12afbc5791ff [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "test" "--frozen", 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] c8c59db614a6e063d3ea75c27690c159c20cdc5b24452bce01d13ca4ba46735e [INFO] running `Command { std: "docker" "start" "-a" "c8c59db614a6e063d3ea75c27690c159c20cdc5b24452bce01d13ca4ba46735e", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `file_contents` [INFO] [stderr] --> src/lib.rs:5:7 [INFO] [stderr] | [INFO] [stderr] 5 | let file_contents = fs::read_to_string(config.filename)?; [INFO] [stderr] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_contents` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `minigrep` (lib) generated 1 warning [INFO] [stderr] warning: `minigrep` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:9:51 [INFO] [stderr] | [INFO] [stderr] 9 | let config = Config::new(&args).unwrap_or_else(|e| { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `minigrep` (bin "minigrep" test) generated 1 warning [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/minigrep-b32566172f8b6c99) [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test test::test_config_constructor_invalid ... ok [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/minigrep-ec5e3e4215ab4cfa) [INFO] [stdout] test test::test_config_constructor ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [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] [stderr] Doc-tests minigrep [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" "c8c59db614a6e063d3ea75c27690c159c20cdc5b24452bce01d13ca4ba46735e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c8c59db614a6e063d3ea75c27690c159c20cdc5b24452bce01d13ca4ba46735e", kill_on_drop: false }` [INFO] [stdout] c8c59db614a6e063d3ea75c27690c159c20cdc5b24452bce01d13ca4ba46735e