[INFO] updating cached repository hasanhaja/rust_book_workthrough [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/hasanhaja/rust_book_workthrough [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/hasanhaja/rust_book_workthrough" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/hasanhaja/rust_book_workthrough"` [INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/hasanhaja/rust_book_workthrough'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/hasanhaja/rust_book_workthrough" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/hasanhaja/rust_book_workthrough"` [INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/hasanhaja/rust_book_workthrough'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] aad7dc5b9f2beaeeebde3869d510ed9992517039 [INFO] sha for GitHub repo hasanhaja/rust_book_workthrough: aad7dc5b9f2beaeeebde3869d510ed9992517039 [INFO] validating manifest of hasanhaja/rust_book_workthrough on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of hasanhaja/rust_book_workthrough on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing hasanhaja/rust_book_workthrough [INFO] finished frobbing hasanhaja/rust_book_workthrough [INFO] frobbed toml for hasanhaja/rust_book_workthrough written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/hasanhaja/rust_book_workthrough/Cargo.toml [INFO] started frobbing hasanhaja/rust_book_workthrough [INFO] finished frobbing hasanhaja/rust_book_workthrough [INFO] frobbed toml for hasanhaja/rust_book_workthrough written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/hasanhaja/rust_book_workthrough/Cargo.toml [INFO] crate hasanhaja/rust_book_workthrough has a lockfile. skipping [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing hasanhaja/rust_book_workthrough against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/hasanhaja/rust_book_workthrough:/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"` [INFO] [stdout] 53adfa88792b1db208df8eeb4e09860fad83fd16480025945668c0928f2593b0 [INFO] running `"docker" "start" "-a" "53adfa88792b1db208df8eeb4e09860fad83fd16480025945668c0928f2593b0"` [INFO] [stderr] Compiling rust_book_workthrough v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `item` [INFO] [stderr] --> src/generics/mod.rs:70:17 [INFO] [stderr] | [INFO] [stderr] 70 | fn notify_mult1(item: impl Summary + Display) { // Placeholder [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_item` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `item` [INFO] [stderr] --> src/generics/mod.rs:73:39 [INFO] [stderr] | [INFO] [stderr] 73 | fn notify_mult2(item: T) { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_item` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t` [INFO] [stderr] --> src/generics/mod.rs:77:51 [INFO] [stderr] | [INFO] [stderr] 77 | fn some_fn1(t: T, u: U) -> i32 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_t` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `u` [INFO] [stderr] --> src/generics/mod.rs:77:57 [INFO] [stderr] | [INFO] [stderr] 77 | fn some_fn1(t: T, u: U) -> i32 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_u` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t` [INFO] [stderr] --> src/generics/mod.rs:82:19 [INFO] [stderr] | [INFO] [stderr] 82 | fn some_fn2(t: T, u: U) -> i32 [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_t` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `u` [INFO] [stderr] --> src/generics/mod.rs:82:25 [INFO] [stderr] | [INFO] [stderr] 82 | fn some_fn2(t: T, u: U) -> i32 [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_u` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `y` [INFO] [stderr] --> src/generics/mod.rs:39:5 [INFO] [stderr] | [INFO] [stderr] 39 | y: T, [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `distance_from_origin` [INFO] [stderr] --> src/generics/mod.rs:55:5 [INFO] [stderr] | [INFO] [stderr] 55 | pub fn distance_from_origin(&self) -> f32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `notify_mult1` [INFO] [stderr] --> src/generics/mod.rs:70:1 [INFO] [stderr] | [INFO] [stderr] 70 | fn notify_mult1(item: impl Summary + Display) { // Placeholder [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `notify_mult2` [INFO] [stderr] --> src/generics/mod.rs:73:1 [INFO] [stderr] | [INFO] [stderr] 73 | fn notify_mult2(item: T) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `some_fn1` [INFO] [stderr] --> src/generics/mod.rs:77:1 [INFO] [stderr] | [INFO] [stderr] 77 | fn some_fn1(t: T, u: U) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `some_fn2` [INFO] [stderr] --> src/generics/mod.rs:82:1 [INFO] [stderr] | [INFO] [stderr] 82 | / fn some_fn2(t: T, u: U) -> i32 [INFO] [stderr] 83 | | where T: Display + Clone, [INFO] [stderr] 84 | | U: Clone + Debug [INFO] [stderr] 85 | | { [INFO] [stderr] 86 | | // Placeholder [INFO] [stderr] 87 | | 0 [INFO] [stderr] 88 | | } [INFO] [stderr] | |_^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `NewsArticle` [INFO] [stderr] --> src/generics/mod.rs:106:1 [INFO] [stderr] | [INFO] [stderr] 106 | pub struct NewsArticle { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.09s [INFO] running `"docker" "inspect" "53adfa88792b1db208df8eeb4e09860fad83fd16480025945668c0928f2593b0"` [INFO] running `"docker" "rm" "-f" "53adfa88792b1db208df8eeb4e09860fad83fd16480025945668c0928f2593b0"` [INFO] [stdout] 53adfa88792b1db208df8eeb4e09860fad83fd16480025945668c0928f2593b0 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/hasanhaja/rust_book_workthrough:/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"` [INFO] [stdout] e897be1050ed4c728a23a0213762f4f3179ef895c37e5ae5bde34d23fd74179f [INFO] running `"docker" "start" "-a" "e897be1050ed4c728a23a0213762f4f3179ef895c37e5ae5bde34d23fd74179f"` [INFO] [stderr] Compiling rust_book_workthrough v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `item` [INFO] [stderr] --> src/generics/mod.rs:70:17 [INFO] [stderr] | [INFO] [stderr] 70 | fn notify_mult1(item: impl Summary + Display) { // Placeholder [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_item` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `item` [INFO] [stderr] --> src/generics/mod.rs:73:39 [INFO] [stderr] | [INFO] [stderr] 73 | fn notify_mult2(item: T) { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_item` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t` [INFO] [stderr] --> src/generics/mod.rs:77:51 [INFO] [stderr] | [INFO] [stderr] 77 | fn some_fn1(t: T, u: U) -> i32 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_t` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `u` [INFO] [stderr] --> src/generics/mod.rs:77:57 [INFO] [stderr] | [INFO] [stderr] 77 | fn some_fn1(t: T, u: U) -> i32 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_u` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t` [INFO] [stderr] --> src/generics/mod.rs:82:19 [INFO] [stderr] | [INFO] [stderr] 82 | fn some_fn2(t: T, u: U) -> i32 [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_t` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `u` [INFO] [stderr] --> src/generics/mod.rs:82:25 [INFO] [stderr] | [INFO] [stderr] 82 | fn some_fn2(t: T, u: U) -> i32 [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_u` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `y` [INFO] [stderr] --> src/generics/mod.rs:39:5 [INFO] [stderr] | [INFO] [stderr] 39 | y: T, [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `distance_from_origin` [INFO] [stderr] --> src/generics/mod.rs:55:5 [INFO] [stderr] | [INFO] [stderr] 55 | pub fn distance_from_origin(&self) -> f32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `notify_mult1` [INFO] [stderr] --> src/generics/mod.rs:70:1 [INFO] [stderr] | [INFO] [stderr] 70 | fn notify_mult1(item: impl Summary + Display) { // Placeholder [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `notify_mult2` [INFO] [stderr] --> src/generics/mod.rs:73:1 [INFO] [stderr] | [INFO] [stderr] 73 | fn notify_mult2(item: T) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `some_fn1` [INFO] [stderr] --> src/generics/mod.rs:77:1 [INFO] [stderr] | [INFO] [stderr] 77 | fn some_fn1(t: T, u: U) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `some_fn2` [INFO] [stderr] --> src/generics/mod.rs:82:1 [INFO] [stderr] | [INFO] [stderr] 82 | / fn some_fn2(t: T, u: U) -> i32 [INFO] [stderr] 83 | | where T: Display + Clone, [INFO] [stderr] 84 | | U: Clone + Debug [INFO] [stderr] 85 | | { [INFO] [stderr] 86 | | // Placeholder [INFO] [stderr] 87 | | 0 [INFO] [stderr] 88 | | } [INFO] [stderr] | |_^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `NewsArticle` [INFO] [stderr] --> src/generics/mod.rs:106:1 [INFO] [stderr] | [INFO] [stderr] 106 | pub struct NewsArticle { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.64s [INFO] running `"docker" "inspect" "e897be1050ed4c728a23a0213762f4f3179ef895c37e5ae5bde34d23fd74179f"` [INFO] running `"docker" "rm" "-f" "e897be1050ed4c728a23a0213762f4f3179ef895c37e5ae5bde34d23fd74179f"` [INFO] [stdout] e897be1050ed4c728a23a0213762f4f3179ef895c37e5ae5bde34d23fd74179f [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/hasanhaja/rust_book_workthrough:/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"` [INFO] [stdout] 7828b5104631e7b801721b9ba9bb7232d2cb0e7bd79151197d10e553e4a20a9c [INFO] running `"docker" "start" "-a" "7828b5104631e7b801721b9ba9bb7232d2cb0e7bd79151197d10e553e4a20a9c"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/crater/target/debug/deps/rust_book_workthrough-c8e70463e665fee4 [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" "7828b5104631e7b801721b9ba9bb7232d2cb0e7bd79151197d10e553e4a20a9c"` [INFO] running `"docker" "rm" "-f" "7828b5104631e7b801721b9ba9bb7232d2cb0e7bd79151197d10e553e4a20a9c"` [INFO] [stdout] 7828b5104631e7b801721b9ba9bb7232d2cb0e7bd79151197d10e553e4a20a9c