[INFO] updating cached repository keitaroemotion/rust-sample [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/keitaroemotion/rust-sample [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/keitaroemotion/rust-sample" "work/ex/beta-1.38-1/sources/1.37.0/gh/keitaroemotion/rust-sample"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/keitaroemotion/rust-sample'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/keitaroemotion/rust-sample" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/keitaroemotion/rust-sample"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/keitaroemotion/rust-sample'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 469965184f9e54e08e5b3d9ab9f3af6ab93993cb [INFO] sha for GitHub repo keitaroemotion/rust-sample: 469965184f9e54e08e5b3d9ab9f3af6ab93993cb [INFO] validating manifest of keitaroemotion/rust-sample on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of keitaroemotion/rust-sample on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing keitaroemotion/rust-sample [INFO] finished frobbing keitaroemotion/rust-sample [INFO] frobbed toml for keitaroemotion/rust-sample written to work/ex/beta-1.38-1/sources/1.37.0/gh/keitaroemotion/rust-sample/Cargo.toml [INFO] started frobbing keitaroemotion/rust-sample [INFO] finished frobbing keitaroemotion/rust-sample [INFO] frobbed toml for keitaroemotion/rust-sample written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/keitaroemotion/rust-sample/Cargo.toml [INFO] crate keitaroemotion/rust-sample already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing keitaroemotion/rust-sample against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/keitaroemotion/rust-sample:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 09aed5fec71e5606cdbac26069eb8dda2de24c1dc7e9c4a07fe81d8e8630d99d [INFO] running `"docker" "start" "-a" "09aed5fec71e5606cdbac26069eb8dda2de24c1dc7e9c4a07fe81d8e8630d99d"` [INFO] [stderr] Compiling guessing_game v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `home` [INFO] [stderr] --> src/main.rs:69:9 [INFO] [stderr] | [INFO] [stderr] 69 | let home = IpAddr::V4(127, 0, 0, 1); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_home` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `loopback` [INFO] [stderr] --> src/main.rs:70:9 [INFO] [stderr] | [INFO] [stderr] 70 | let loopback = IpAddr::V6(String::from("::1")); [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_loopback` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `some_number` [INFO] [stderr] --> src/main.rs:72:9 [INFO] [stderr] | [INFO] [stderr] 72 | let some_number = Some(5); [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_some_number` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `some_string` [INFO] [stderr] --> src/main.rs:73:9 [INFO] [stderr] | [INFO] [stderr] 73 | let some_string = Some("a string"); [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_some_string` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `absent_number` [INFO] [stderr] --> src/main.rs:74:9 [INFO] [stderr] | [INFO] [stderr] 74 | let absent_number: Option = None; [INFO] [stderr] | ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_absent_number` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `state` [INFO] [stderr] --> src/main.rs:81:27 [INFO] [stderr] | [INFO] [stderr] 81 | Coin::Quarter(state) => 25, [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_state` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `value_in_cents` [INFO] [stderr] --> src/main.rs:76:5 [INFO] [stderr] | [INFO] [stderr] 76 | fn value_in_cents(coin: Coin) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `UsState` [INFO] [stderr] --> src/main.rs:86:1 [INFO] [stderr] | [INFO] [stderr] 86 | enum UsState { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Coin` [INFO] [stderr] --> src/main.rs:92:1 [INFO] [stderr] | [INFO] [stderr] 92 | enum Coin { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `area` [INFO] [stderr] --> src/main.rs:104:1 [INFO] [stderr] | [INFO] [stderr] 104 | fn area(r: &Rectangle) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.44s [INFO] running `"docker" "inspect" "09aed5fec71e5606cdbac26069eb8dda2de24c1dc7e9c4a07fe81d8e8630d99d"` [INFO] running `"docker" "rm" "-f" "09aed5fec71e5606cdbac26069eb8dda2de24c1dc7e9c4a07fe81d8e8630d99d"` [INFO] [stdout] 09aed5fec71e5606cdbac26069eb8dda2de24c1dc7e9c4a07fe81d8e8630d99d [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/keitaroemotion/rust-sample:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 1baa68888a34ac0ee3655985736c4e45b5a10d761d1c7c93c5a5b506855f8d7f [INFO] running `"docker" "start" "-a" "1baa68888a34ac0ee3655985736c4e45b5a10d761d1c7c93c5a5b506855f8d7f"` [INFO] [stderr] Compiling guessing_game v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `home` [INFO] [stderr] --> src/main.rs:69:9 [INFO] [stderr] | [INFO] [stderr] 69 | let home = IpAddr::V4(127, 0, 0, 1); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_home` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `loopback` [INFO] [stderr] --> src/main.rs:70:9 [INFO] [stderr] | [INFO] [stderr] 70 | let loopback = IpAddr::V6(String::from("::1")); [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_loopback` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `some_number` [INFO] [stderr] --> src/main.rs:72:9 [INFO] [stderr] | [INFO] [stderr] 72 | let some_number = Some(5); [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_some_number` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `some_string` [INFO] [stderr] --> src/main.rs:73:9 [INFO] [stderr] | [INFO] [stderr] 73 | let some_string = Some("a string"); [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_some_string` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `absent_number` [INFO] [stderr] --> src/main.rs:74:9 [INFO] [stderr] | [INFO] [stderr] 74 | let absent_number: Option = None; [INFO] [stderr] | ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_absent_number` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `state` [INFO] [stderr] --> src/main.rs:81:27 [INFO] [stderr] | [INFO] [stderr] 81 | Coin::Quarter(state) => 25, [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_state` [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Alabama` [INFO] [stderr] --> src/main.rs:87:5 [INFO] [stderr] | [INFO] [stderr] 87 | Alabama, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Alaska` [INFO] [stderr] --> src/main.rs:88:5 [INFO] [stderr] | [INFO] [stderr] 88 | Alaska, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Oregon` [INFO] [stderr] --> src/main.rs:89:5 [INFO] [stderr] | [INFO] [stderr] 89 | Oregon, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Penny` [INFO] [stderr] --> src/main.rs:93:5 [INFO] [stderr] | [INFO] [stderr] 93 | Penny, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Nickel` [INFO] [stderr] --> src/main.rs:94:5 [INFO] [stderr] | [INFO] [stderr] 94 | Nickel, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Dime` [INFO] [stderr] --> src/main.rs:95:5 [INFO] [stderr] | [INFO] [stderr] 95 | Dime, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Quarter` [INFO] [stderr] --> src/main.rs:96:5 [INFO] [stderr] | [INFO] [stderr] 96 | Quarter(UsState), [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `area` [INFO] [stderr] --> src/main.rs:104:1 [INFO] [stderr] | [INFO] [stderr] 104 | fn area(r: &Rectangle) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.50s [INFO] running `"docker" "inspect" "1baa68888a34ac0ee3655985736c4e45b5a10d761d1c7c93c5a5b506855f8d7f"` [INFO] running `"docker" "rm" "-f" "1baa68888a34ac0ee3655985736c4e45b5a10d761d1c7c93c5a5b506855f8d7f"` [INFO] [stdout] 1baa68888a34ac0ee3655985736c4e45b5a10d761d1c7c93c5a5b506855f8d7f [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/keitaroemotion/rust-sample:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"` [INFO] [stdout] 189768f41b171667adbdfb449f7990877e6ec464c281f033259325654fc8d227 [INFO] running `"docker" "start" "-a" "189768f41b171667adbdfb449f7990877e6ec464c281f033259325654fc8d227"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/crater/target/debug/deps/guessing_game-f0a0805726afb3ec [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 [INFO] [stdout] [INFO] running `"docker" "inspect" "189768f41b171667adbdfb449f7990877e6ec464c281f033259325654fc8d227"` [INFO] running `"docker" "rm" "-f" "189768f41b171667adbdfb449f7990877e6ec464c281f033259325654fc8d227"` [INFO] [stdout] 189768f41b171667adbdfb449f7990877e6ec464c281f033259325654fc8d227