[INFO] updating cached repository cmonkey/rust_project [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/cmonkey/rust_project [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/cmonkey/rust_project" "work/ex/beta-1.38-1/sources/1.37.0/gh/cmonkey/rust_project"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cmonkey/rust_project'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/cmonkey/rust_project" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cmonkey/rust_project"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cmonkey/rust_project'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] a90eaec20b182a93bc1981d13d7443b2a2df139f [INFO] sha for GitHub repo cmonkey/rust_project: a90eaec20b182a93bc1981d13d7443b2a2df139f [INFO] validating manifest of cmonkey/rust_project 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 cmonkey/rust_project 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 cmonkey/rust_project [INFO] finished frobbing cmonkey/rust_project [INFO] frobbed toml for cmonkey/rust_project written to work/ex/beta-1.38-1/sources/1.37.0/gh/cmonkey/rust_project/Cargo.toml [INFO] started frobbing cmonkey/rust_project [INFO] finished frobbing cmonkey/rust_project [INFO] frobbed toml for cmonkey/rust_project written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cmonkey/rust_project/Cargo.toml [INFO] crate cmonkey/rust_project 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 cmonkey/rust_project 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cmonkey/rust_project:/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] 714f933f39be111245b035b7b9035d54be90779b04764389f850d53a580fe731 [INFO] running `"docker" "start" "-a" "714f933f39be111245b035b7b9035d54be90779b04764389f850d53a580fe731"` [INFO] [stderr] Compiling rust_project v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unnecessary parentheses around `for` head expression [INFO] [stderr] --> src/main.rs:71:19 [INFO] [stderr] | [INFO] [stderr] 71 | for number in (1..10) { [INFO] [stderr] | ^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `back` [INFO] [stderr] --> src/main.rs:135:9 [INFO] [stderr] | [INFO] [stderr] 135 | let back = Color(0, 0, 0); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_back` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `origin` [INFO] [stderr] --> src/main.rs:136:9 [INFO] [stderr] | [INFO] [stderr] 136 | let origin = Point(0, 0, 0); [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_origin` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `some_number` [INFO] [stderr] --> src/main.rs:185:9 [INFO] [stderr] | [INFO] [stderr] 185 | let some_number = Some(1); [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_some_number` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `some_string` [INFO] [stderr] --> src/main.rs:186:9 [INFO] [stderr] | [INFO] [stderr] 186 | let some_string = Some("s 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:187:9 [INFO] [stderr] | [INFO] [stderr] 187 | let absent_number: Option = None; [INFO] [stderr] | ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_absent_number` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:189:9 [INFO] [stderr] | [INFO] [stderr] 189 | let x: i8 = 5; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/main.rs:190:9 [INFO] [stderr] | [INFO] [stderr] 190 | let y: Option = Some(5); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `six` [INFO] [stderr] --> src/main.rs:199:9 [INFO] [stderr] | [INFO] [stderr] 199 | let six = plus_one_option(five); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_six` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `none` [INFO] [stderr] --> src/main.rs:200:9 [INFO] [stderr] | [INFO] [stderr] 200 | let none = plus_one_option(None); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_none` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/main.rs:239:9 [INFO] [stderr] | [INFO] [stderr] 239 | let f = match f { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `other_error` [INFO] [stderr] --> src/main.rs:246:13 [INFO] [stderr] | [INFO] [stderr] 246 | other_error => panic!("There was a problem opening the file: {:?}", error) [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_other_error` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `userName` [INFO] [stderr] --> src/main.rs:12:5 [INFO] [stderr] | [INFO] [stderr] 12 | userName: String, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `sign_in_count` [INFO] [stderr] --> src/main.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | sign_in_count: u64, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `build_user` [INFO] [stderr] --> src/main.rs:314:1 [INFO] [stderr] | [INFO] [stderr] 314 | fn build_user(email: String, userName: String) -> User { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `area` [INFO] [stderr] --> src/main.rs:323:1 [INFO] [stderr] | [INFO] [stderr] 323 | fn area(rectangle: &Rectangle) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Nickel` [INFO] [stderr] --> src/main.rs:335:5 [INFO] [stderr] | [INFO] [stderr] 335 | Nickel, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Dime` [INFO] [stderr] --> src/main.rs:336:5 [INFO] [stderr] | [INFO] [stderr] 336 | Dime, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Quarter` [INFO] [stderr] --> src/main.rs:337:5 [INFO] [stderr] | [INFO] [stderr] 337 | Quarter, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: structure field `userName` should have a snake case name [INFO] [stderr] --> src/main.rs:12:5 [INFO] [stderr] | [INFO] [stderr] 12 | userName: String, [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `user_name` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable `lenS` should have a snake case name [INFO] [stderr] --> src/main.rs:85:9 [INFO] [stderr] | [INFO] [stderr] 85 | let lenS = String::from("hello"); [INFO] [stderr] | ^^^^ help: convert the identifier to snake case: `len_s` [INFO] [stderr] [INFO] [stderr] warning: variable `userName` should have a snake case name [INFO] [stderr] --> src/main.rs:314:30 [INFO] [stderr] | [INFO] [stderr] 314 | fn build_user(email: String, userName: String) -> User { [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `user_name` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.19s [INFO] running `"docker" "inspect" "714f933f39be111245b035b7b9035d54be90779b04764389f850d53a580fe731"` [INFO] running `"docker" "rm" "-f" "714f933f39be111245b035b7b9035d54be90779b04764389f850d53a580fe731"` [INFO] [stdout] 714f933f39be111245b035b7b9035d54be90779b04764389f850d53a580fe731 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cmonkey/rust_project:/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] 2d833cafa52b2f4020c3bc414fdd6facdb28f9a2cda5dd6f9fc491d4d785136b [INFO] running `"docker" "start" "-a" "2d833cafa52b2f4020c3bc414fdd6facdb28f9a2cda5dd6f9fc491d4d785136b"` [INFO] [stderr] Compiling rust_project v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unnecessary parentheses around `for` head expression [INFO] [stderr] --> src/main.rs:71:19 [INFO] [stderr] | [INFO] [stderr] 71 | for number in (1..10) { [INFO] [stderr] | ^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `back` [INFO] [stderr] --> src/main.rs:135:9 [INFO] [stderr] | [INFO] [stderr] 135 | let back = Color(0, 0, 0); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_back` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `origin` [INFO] [stderr] --> src/main.rs:136:9 [INFO] [stderr] | [INFO] [stderr] 136 | let origin = Point(0, 0, 0); [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_origin` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `some_number` [INFO] [stderr] --> src/main.rs:185:9 [INFO] [stderr] | [INFO] [stderr] 185 | let some_number = Some(1); [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_some_number` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `some_string` [INFO] [stderr] --> src/main.rs:186:9 [INFO] [stderr] | [INFO] [stderr] 186 | let some_string = Some("s 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:187:9 [INFO] [stderr] | [INFO] [stderr] 187 | let absent_number: Option = None; [INFO] [stderr] | ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_absent_number` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:189:9 [INFO] [stderr] | [INFO] [stderr] 189 | let x: i8 = 5; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/main.rs:190:9 [INFO] [stderr] | [INFO] [stderr] 190 | let y: Option = Some(5); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `six` [INFO] [stderr] --> src/main.rs:199:9 [INFO] [stderr] | [INFO] [stderr] 199 | let six = plus_one_option(five); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_six` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `none` [INFO] [stderr] --> src/main.rs:200:9 [INFO] [stderr] | [INFO] [stderr] 200 | let none = plus_one_option(None); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_none` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/main.rs:239:9 [INFO] [stderr] | [INFO] [stderr] 239 | let f = match f { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `other_error` [INFO] [stderr] --> src/main.rs:246:13 [INFO] [stderr] | [INFO] [stderr] 246 | other_error => panic!("There was a problem opening the file: {:?}", error) [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_other_error` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `userName` [INFO] [stderr] --> src/main.rs:12:5 [INFO] [stderr] | [INFO] [stderr] 12 | userName: String, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `sign_in_count` [INFO] [stderr] --> src/main.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | sign_in_count: u64, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `build_user` [INFO] [stderr] --> src/main.rs:314:1 [INFO] [stderr] | [INFO] [stderr] 314 | fn build_user(email: String, userName: String) -> User { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `area` [INFO] [stderr] --> src/main.rs:323:1 [INFO] [stderr] | [INFO] [stderr] 323 | fn area(rectangle: &Rectangle) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Nickel` [INFO] [stderr] --> src/main.rs:335:5 [INFO] [stderr] | [INFO] [stderr] 335 | Nickel, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Dime` [INFO] [stderr] --> src/main.rs:336:5 [INFO] [stderr] | [INFO] [stderr] 336 | Dime, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Quarter` [INFO] [stderr] --> src/main.rs:337:5 [INFO] [stderr] | [INFO] [stderr] 337 | Quarter, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: structure field `userName` should have a snake case name [INFO] [stderr] --> src/main.rs:12:5 [INFO] [stderr] | [INFO] [stderr] 12 | userName: String, [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `user_name` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable `lenS` should have a snake case name [INFO] [stderr] --> src/main.rs:85:9 [INFO] [stderr] | [INFO] [stderr] 85 | let lenS = String::from("hello"); [INFO] [stderr] | ^^^^ help: convert the identifier to snake case: `len_s` [INFO] [stderr] [INFO] [stderr] warning: variable `userName` should have a snake case name [INFO] [stderr] --> src/main.rs:314:30 [INFO] [stderr] | [INFO] [stderr] 314 | fn build_user(email: String, userName: String) -> User { [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `user_name` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.52s [INFO] running `"docker" "inspect" "2d833cafa52b2f4020c3bc414fdd6facdb28f9a2cda5dd6f9fc491d4d785136b"` [INFO] running `"docker" "rm" "-f" "2d833cafa52b2f4020c3bc414fdd6facdb28f9a2cda5dd6f9fc491d4d785136b"` [INFO] [stdout] 2d833cafa52b2f4020c3bc414fdd6facdb28f9a2cda5dd6f9fc491d4d785136b [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cmonkey/rust_project:/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] c2c6af1512db7ba2b292cc836705fb2f74b6f482349ab3e57069eaf7f8a87569 [INFO] running `"docker" "start" "-a" "c2c6af1512db7ba2b292cc836705fb2f74b6f482349ab3e57069eaf7f8a87569"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/crater/target/debug/deps/rust_project-b334bdbdba82d436 [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" "c2c6af1512db7ba2b292cc836705fb2f74b6f482349ab3e57069eaf7f8a87569"` [INFO] running `"docker" "rm" "-f" "c2c6af1512db7ba2b292cc836705fb2f74b6f482349ab3e57069eaf7f8a87569"` [INFO] [stdout] c2c6af1512db7ba2b292cc836705fb2f74b6f482349ab3e57069eaf7f8a87569