[INFO] updating cached repository DLeyland/Hello-Rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/DLeyland/Hello-Rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/DLeyland/Hello-Rust" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/DLeyland/Hello-Rust"` [INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/DLeyland/Hello-Rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/DLeyland/Hello-Rust" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/DLeyland/Hello-Rust"` [INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/DLeyland/Hello-Rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 013d7a63910f33b384f3ef565d2dd17b9a002509 [INFO] sha for GitHub repo DLeyland/Hello-Rust: 013d7a63910f33b384f3ef565d2dd17b9a002509 [INFO] validating manifest of DLeyland/Hello-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 DLeyland/Hello-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 DLeyland/Hello-Rust [INFO] finished frobbing DLeyland/Hello-Rust [INFO] frobbed toml for DLeyland/Hello-Rust written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/DLeyland/Hello-Rust/Cargo.toml [INFO] started frobbing DLeyland/Hello-Rust [INFO] finished frobbing DLeyland/Hello-Rust [INFO] frobbed toml for DLeyland/Hello-Rust written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/DLeyland/Hello-Rust/Cargo.toml [INFO] crate DLeyland/Hello-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 DLeyland/Hello-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/DLeyland/Hello-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] e9c41b451bac451ec4eccd9da8116c712a6f432f84d1184c03590976e940c8fc [INFO] running `"docker" "start" "-a" "e9c41b451bac451ec4eccd9da8116c712a6f432f84d1184c03590976e940c8fc"` [INFO] [stderr] Compiling hello_world v0.0.1 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:4:9 [INFO] [stderr] | [INFO] [stderr] 4 | for i in 0..10{ [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello_world1` [INFO] [stderr] --> src/main.rs:24:6 [INFO] [stderr] | [INFO] [stderr] 24 | let hello_world1 = hello + world1; //no ampersand needed to add a string and a &str [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_hello_world1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello_world2` [INFO] [stderr] --> src/main.rs:28:6 [INFO] [stderr] | [INFO] [stderr] 28 | let hello_world2 = hello2 + &world2; //ampersand needed when adding two strings, to allow second string to deref into &str [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_hello_world2` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `for_loop` [INFO] [stderr] --> src/main.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | fn for_loop(){ [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `while_loop_with_vec` [INFO] [stderr] --> src/main.rs:10:1 [INFO] [stderr] | [INFO] [stderr] 10 | fn while_loop_with_vec(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `string_example` [INFO] [stderr] --> src/main.rs:20:1 [INFO] [stderr] | [INFO] [stderr] 20 | fn string_example(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Circle` [INFO] [stderr] --> src/main.rs:31:1 [INFO] [stderr] | [INFO] [stderr] 31 | struct Circle{ [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `area` [INFO] [stderr] --> src/main.rs:38:2 [INFO] [stderr] | [INFO] [stderr] 38 | fn area(&self)->f64{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `circle_area` [INFO] [stderr] --> src/main.rs:43:1 [INFO] [stderr] | [INFO] [stderr] 43 | fn circle_area(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.67s [INFO] running `"docker" "inspect" "e9c41b451bac451ec4eccd9da8116c712a6f432f84d1184c03590976e940c8fc"` [INFO] running `"docker" "rm" "-f" "e9c41b451bac451ec4eccd9da8116c712a6f432f84d1184c03590976e940c8fc"` [INFO] [stdout] e9c41b451bac451ec4eccd9da8116c712a6f432f84d1184c03590976e940c8fc [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/DLeyland/Hello-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] caa7302192d515344456d4855e03a4ede83522185d5bb4a8029a1920c537769b [INFO] running `"docker" "start" "-a" "caa7302192d515344456d4855e03a4ede83522185d5bb4a8029a1920c537769b"` [INFO] [stderr] Compiling hello_world v0.0.1 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:4:9 [INFO] [stderr] | [INFO] [stderr] 4 | for i in 0..10{ [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello_world1` [INFO] [stderr] --> src/main.rs:24:6 [INFO] [stderr] | [INFO] [stderr] 24 | let hello_world1 = hello + world1; //no ampersand needed to add a string and a &str [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_hello_world1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello_world2` [INFO] [stderr] --> src/main.rs:28:6 [INFO] [stderr] | [INFO] [stderr] 28 | let hello_world2 = hello2 + &world2; //ampersand needed when adding two strings, to allow second string to deref into &str [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_hello_world2` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `for_loop` [INFO] [stderr] --> src/main.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | fn for_loop(){ [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `while_loop_with_vec` [INFO] [stderr] --> src/main.rs:10:1 [INFO] [stderr] | [INFO] [stderr] 10 | fn while_loop_with_vec(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `string_example` [INFO] [stderr] --> src/main.rs:20:1 [INFO] [stderr] | [INFO] [stderr] 20 | fn string_example(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Circle` [INFO] [stderr] --> src/main.rs:31:1 [INFO] [stderr] | [INFO] [stderr] 31 | struct Circle{ [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `area` [INFO] [stderr] --> src/main.rs:38:2 [INFO] [stderr] | [INFO] [stderr] 38 | fn area(&self)->f64{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `circle_area` [INFO] [stderr] --> src/main.rs:43:1 [INFO] [stderr] | [INFO] [stderr] 43 | fn circle_area(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.48s [INFO] running `"docker" "inspect" "caa7302192d515344456d4855e03a4ede83522185d5bb4a8029a1920c537769b"` [INFO] running `"docker" "rm" "-f" "caa7302192d515344456d4855e03a4ede83522185d5bb4a8029a1920c537769b"` [INFO] [stdout] caa7302192d515344456d4855e03a4ede83522185d5bb4a8029a1920c537769b [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/DLeyland/Hello-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] 34d82ec814abc0384447176b127f31d678ae10eb87e92fcfd08145bf4088c07c [INFO] running `"docker" "start" "-a" "34d82ec814abc0384447176b127f31d678ae10eb87e92fcfd08145bf4088c07c"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/crater/target/debug/deps/hello_world-3401503cec00294c [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" "34d82ec814abc0384447176b127f31d678ae10eb87e92fcfd08145bf4088c07c"` [INFO] running `"docker" "rm" "-f" "34d82ec814abc0384447176b127f31d678ae10eb87e92fcfd08145bf4088c07c"` [INFO] [stdout] 34d82ec814abc0384447176b127f31d678ae10eb87e92fcfd08145bf4088c07c