[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-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/CharlesGe129/learn_rust"` [INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/CharlesGe129/learn_rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/CharlesGe129/learn_rust" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/CharlesGe129/learn_rust"` [INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/CharlesGe129/learn_rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] c8a414d46a412145ca698c3cab096c6a3fa9aaa6 [INFO] sha for GitHub repo CharlesGe129/learn_rust: c8a414d46a412145ca698c3cab096c6a3fa9aaa6 [INFO] validating manifest of CharlesGe129/learn_rust 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 CharlesGe129/learn_rust 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 CharlesGe129/learn_rust [INFO] finished frobbing CharlesGe129/learn_rust [INFO] frobbed toml for CharlesGe129/learn_rust written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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" "+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 CharlesGe129/learn_rust against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"` [INFO] [stdout] 3d33c990ce01db2611aa275d6ffdbb37bf5ae93843d8913807bf3c0556034681 [INFO] running `"docker" "start" "-a" "3d33c990ce01db2611aa275d6ffdbb37bf5ae93843d8913807bf3c0556034681"` [INFO] [stderr] Compiling learn_rust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: type `Point_mut` should have a camel case name [INFO] [stderr] --> src/struct.rs:44:12 [INFO] [stderr] | [INFO] [stderr] 44 | struct Point_mut { [INFO] [stderr] | ^^^^^^^^^ help: convert the identifier to camel case: `PointMut` [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 prefixing with an underscore: `_v` [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 prefixing with an underscore: `_v` [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 prefixing with an underscore: `_hello` [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 prefixing with an underscore: `_hello` [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] = help: maybe it is overwritten before being read? [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 prefixing with an underscore: `_point` [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 prefixing with an underscore: `_green` [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 prefixing with an underscore: `_blue` [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: 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] Finished dev [unoptimized + debuginfo] target(s) in 1.27s [INFO] running `"docker" "inspect" "3d33c990ce01db2611aa275d6ffdbb37bf5ae93843d8913807bf3c0556034681"` [INFO] running `"docker" "rm" "-f" "3d33c990ce01db2611aa275d6ffdbb37bf5ae93843d8913807bf3c0556034681"` [INFO] [stdout] 3d33c990ce01db2611aa275d6ffdbb37bf5ae93843d8913807bf3c0556034681 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"` [INFO] [stdout] 3e50e1eb051a0da311c4fb7df4a9a5778a6f10c01063faec60ee2554229d0368 [INFO] running `"docker" "start" "-a" "3e50e1eb051a0da311c4fb7df4a9a5778a6f10c01063faec60ee2554229d0368"` [INFO] [stderr] Compiling learn_rust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: type `Point_mut` should have a camel case name [INFO] [stderr] --> src/struct.rs:44:12 [INFO] [stderr] | [INFO] [stderr] 44 | struct Point_mut { [INFO] [stderr] | ^^^^^^^^^ help: convert the identifier to camel case: `PointMut` [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 prefixing with an underscore: `_v` [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 prefixing with an underscore: `_v` [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 prefixing with an underscore: `_hello` [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 prefixing with an underscore: `_hello` [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] = help: maybe it is overwritten before being read? [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 prefixing with an underscore: `_point` [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 prefixing with an underscore: `_green` [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 prefixing with an underscore: `_blue` [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: 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] Finished dev [unoptimized + debuginfo] target(s) in 0.81s [INFO] running `"docker" "inspect" "3e50e1eb051a0da311c4fb7df4a9a5778a6f10c01063faec60ee2554229d0368"` [INFO] running `"docker" "rm" "-f" "3e50e1eb051a0da311c4fb7df4a9a5778a6f10c01063faec60ee2554229d0368"` [INFO] [stdout] 3e50e1eb051a0da311c4fb7df4a9a5778a6f10c01063faec60ee2554229d0368 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"` [INFO] [stdout] c6e0a79c71d339d373f869c7015728097282372d24d871dc5dfa717ede10125e [INFO] running `"docker" "start" "-a" "c6e0a79c71d339d373f869c7015728097282372d24d871dc5dfa717ede10125e"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/learn_rust-67d90831066313f2 [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" "c6e0a79c71d339d373f869c7015728097282372d24d871dc5dfa717ede10125e"` [INFO] running `"docker" "rm" "-f" "c6e0a79c71d339d373f869c7015728097282372d24d871dc5dfa717ede10125e"` [INFO] [stdout] c6e0a79c71d339d373f869c7015728097282372d24d871dc5dfa717ede10125e