[INFO] updating cached repository CharlesGe129/learn_rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/CharlesGe129/learn_rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/CharlesGe129/learn_rust" "work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/gh/CharlesGe129/learn_rust"` [INFO] [stderr] Cloning into 'work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/gh/CharlesGe129/learn_rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/CharlesGe129/learn_rust" "work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/gh/CharlesGe129/learn_rust"` [INFO] [stderr] Cloning into 'work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/gh/CharlesGe129/learn_rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] ae7fe8c9334dd7d6bd6d26c013bfcd22fe765126 [INFO] sha for GitHub repo CharlesGe129/learn_rust: ae7fe8c9334dd7d6bd6d26c013bfcd22fe765126 [INFO] validating manifest of CharlesGe129/learn_rust on toolchain master#2bde39b8edce6463e1c37f8a8082a875e7b536b1 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of CharlesGe129/learn_rust on toolchain try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0d8b5d1f16bab9e975695518ff8705bdab9fe94c-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing CharlesGe129/learn_rust [INFO] finished frobbing CharlesGe129/learn_rust [INFO] frobbed toml for CharlesGe129/learn_rust written to work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/gh/CharlesGe129/learn_rust/Cargo.toml [INFO] started frobbing CharlesGe129/learn_rust [INFO] finished frobbing CharlesGe129/learn_rust [INFO] frobbed toml for CharlesGe129/learn_rust written to work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/gh/CharlesGe129/learn_rust/Cargo.toml [INFO] crate CharlesGe129/learn_rust has a lockfile. skipping [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0d8b5d1f16bab9e975695518ff8705bdab9fe94c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking CharlesGe129/learn_rust against try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c for pr-57483 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57483/worker-1/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/gh/CharlesGe129/learn_rust:/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" "+0d8b5d1f16bab9e975695518ff8705bdab9fe94c-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] f4b7d1346c23ae055b0ed59b0b66802b68052d1c3ad17f7db8be5c16b41ec5f9 [INFO] running `"docker" "start" "-a" "f4b7d1346c23ae055b0ed59b0b66802b68052d1c3ad17f7db8be5c16b41ec5f9"` [INFO] [stderr] Checking learn_rust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unreachable statement [INFO] [stderr] --> src/control_flow.rs:31:9 [INFO] [stderr] | [INFO] [stderr] 31 | println!("No print, outer has been break"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unreachable_code)] on by default [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v` [INFO] [stderr] --> src/array.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let v: Vec = Vec::new(); [INFO] [stderr] | ^ help: consider using `_v` instead [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v` [INFO] [stderr] --> src/array.rs:7:9 [INFO] [stderr] | [INFO] [stderr] 7 | let v: Vec = vec![]; [INFO] [stderr] | ^ help: consider using `_v` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello` [INFO] [stderr] --> src/str.rs:2:9 [INFO] [stderr] | [INFO] [stderr] 2 | let hello = "hello world!"; [INFO] [stderr] | ^^^^^ help: consider using `_hello` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello` [INFO] [stderr] --> src/str.rs:4:9 [INFO] [stderr] | [INFO] [stderr] 4 | let hello: &'static str = "hello world!"; [INFO] [stderr] | ^^^^^ help: consider using `_hello` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `hello` is never read [INFO] [stderr] --> src/str.rs:6:13 [INFO] [stderr] | [INFO] [stderr] 6 | let mut hello = String::new(); [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `point` [INFO] [stderr] --> src/struct.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let point = Point{x: 1, y: 2}; [INFO] [stderr] | ^^^^^ help: consider using `_point` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `green` [INFO] [stderr] --> src/struct.rs:14:20 [INFO] [stderr] | [INFO] [stderr] 14 | let Color(red, green, blue) = android_green; [INFO] [stderr] | ^^^^^ help: consider using `_green` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `blue` [INFO] [stderr] --> src/struct.rs:14:27 [INFO] [stderr] | [INFO] [stderr] 14 | let Color(red, green, blue) = android_green; [INFO] [stderr] | ^^^^ help: consider using `_blue` instead [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/array.rs:2:9 [INFO] [stderr] | [INFO] [stderr] 2 | let mut array: [i32; 3] = [0; 3]; [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/function.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | let mut temp = num; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `x` [INFO] [stderr] --> src/struct.rs:5:9 [INFO] [stderr] | [INFO] [stderr] 5 | x: i32, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `y` [INFO] [stderr] --> src/struct.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | y: i32, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `x` [INFO] [stderr] --> src/struct.rs:45:9 [INFO] [stderr] | [INFO] [stderr] 45 | x: i32, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `diverges` [INFO] [stderr] --> src/function.rs:14:1 [INFO] [stderr] | [INFO] [stderr] 14 | fn diverges() -> ! { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `x` [INFO] [stderr] --> src/method.rs:3:9 [INFO] [stderr] | [INFO] [stderr] 3 | x: f64, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `y` [INFO] [stderr] --> src/method.rs:4:9 [INFO] [stderr] | [INFO] [stderr] 4 | y: f64, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: type `Point_mut` should have a camel case name such as `PointMut` [INFO] [stderr] --> src/struct.rs:44:5 [INFO] [stderr] | [INFO] [stderr] 44 | / struct Point_mut { [INFO] [stderr] 45 | | x: i32, [INFO] [stderr] 46 | | y: Cell, [INFO] [stderr] 47 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_camel_case_types)] on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable statement [INFO] [stderr] --> src/control_flow.rs:31:9 [INFO] [stderr] | [INFO] [stderr] 31 | println!("No print, outer has been break"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unreachable_code)] on by default [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v` [INFO] [stderr] --> src/array.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let v: Vec = Vec::new(); [INFO] [stderr] | ^ help: consider using `_v` instead [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v` [INFO] [stderr] --> src/array.rs:7:9 [INFO] [stderr] | [INFO] [stderr] 7 | let v: Vec = vec![]; [INFO] [stderr] | ^ help: consider using `_v` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello` [INFO] [stderr] --> src/str.rs:2:9 [INFO] [stderr] | [INFO] [stderr] 2 | let hello = "hello world!"; [INFO] [stderr] | ^^^^^ help: consider using `_hello` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello` [INFO] [stderr] --> src/str.rs:4:9 [INFO] [stderr] | [INFO] [stderr] 4 | let hello: &'static str = "hello world!"; [INFO] [stderr] | ^^^^^ help: consider using `_hello` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `hello` is never read [INFO] [stderr] --> src/str.rs:6:13 [INFO] [stderr] | [INFO] [stderr] 6 | let mut hello = String::new(); [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `point` [INFO] [stderr] --> src/struct.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let point = Point{x: 1, y: 2}; [INFO] [stderr] | ^^^^^ help: consider using `_point` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `green` [INFO] [stderr] --> src/struct.rs:14:20 [INFO] [stderr] | [INFO] [stderr] 14 | let Color(red, green, blue) = android_green; [INFO] [stderr] | ^^^^^ help: consider using `_green` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `blue` [INFO] [stderr] --> src/struct.rs:14:27 [INFO] [stderr] | [INFO] [stderr] 14 | let Color(red, green, blue) = android_green; [INFO] [stderr] | ^^^^ help: consider using `_blue` instead [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/array.rs:2:9 [INFO] [stderr] | [INFO] [stderr] 2 | let mut array: [i32; 3] = [0; 3]; [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/function.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | let mut temp = num; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `x` [INFO] [stderr] --> src/struct.rs:5:9 [INFO] [stderr] | [INFO] [stderr] 5 | x: i32, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `y` [INFO] [stderr] --> src/struct.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | y: i32, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `x` [INFO] [stderr] --> src/struct.rs:45:9 [INFO] [stderr] | [INFO] [stderr] 45 | x: i32, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `diverges` [INFO] [stderr] --> src/function.rs:14:1 [INFO] [stderr] | [INFO] [stderr] 14 | fn diverges() -> ! { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `x` [INFO] [stderr] --> src/method.rs:3:9 [INFO] [stderr] | [INFO] [stderr] 3 | x: f64, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `y` [INFO] [stderr] --> src/method.rs:4:9 [INFO] [stderr] | [INFO] [stderr] 4 | y: f64, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: type `Point_mut` should have a camel case name such as `PointMut` [INFO] [stderr] --> src/struct.rs:44:5 [INFO] [stderr] | [INFO] [stderr] 44 | / struct Point_mut { [INFO] [stderr] 45 | | x: i32, [INFO] [stderr] 46 | | y: Cell, [INFO] [stderr] 47 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_camel_case_types)] on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.37s [INFO] running `"docker" "inspect" "f4b7d1346c23ae055b0ed59b0b66802b68052d1c3ad17f7db8be5c16b41ec5f9"` [INFO] running `"docker" "rm" "-f" "f4b7d1346c23ae055b0ed59b0b66802b68052d1c3ad17f7db8be5c16b41ec5f9"` [INFO] [stdout] f4b7d1346c23ae055b0ed59b0b66802b68052d1c3ad17f7db8be5c16b41ec5f9