[INFO] updating cached repository nulijiushimeili/hello_rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/nulijiushimeili/hello_rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/nulijiushimeili/hello_rust" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/nulijiushimeili/hello_rust"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/nulijiushimeili/hello_rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/nulijiushimeili/hello_rust" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/nulijiushimeili/hello_rust"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/nulijiushimeili/hello_rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 71777e57931a4eb2c6839e2b736861e3e592c89e [INFO] sha for GitHub repo nulijiushimeili/hello_rust: 71777e57931a4eb2c6839e2b736861e3e592c89e [INFO] validating manifest of nulijiushimeili/hello_rust on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of nulijiushimeili/hello_rust on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing nulijiushimeili/hello_rust [INFO] finished frobbing nulijiushimeili/hello_rust [INFO] frobbed toml for nulijiushimeili/hello_rust written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/nulijiushimeili/hello_rust/Cargo.toml [INFO] started frobbing nulijiushimeili/hello_rust [INFO] finished frobbing nulijiushimeili/hello_rust [INFO] frobbed toml for nulijiushimeili/hello_rust written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/nulijiushimeili/hello_rust/Cargo.toml [INFO] crate nulijiushimeili/hello_rust already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking nulijiushimeili/hello_rust against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-6/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/nulijiushimeili/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 0c32606c186870931f0c647fdcaeb2c3a8751f67d7fc1959a059687c71428209 [INFO] running `"docker" "start" "-a" "0c32606c186870931f0c647fdcaeb2c3a8751f67d7fc1959a059687c71428209"` [INFO] [stderr] Checking hello_rust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/main.rs:135:9 [INFO] [stderr] | [INFO] [stderr] 135 | let y:(i32,&str) = (2,"word"); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `z` is assigned to, but never used [INFO] [stderr] --> src/main.rs:136:13 [INFO] [stderr] | [INFO] [stderr] 136 | let mut z = (1,"rust"); [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_z` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `z` is never read [INFO] [stderr] --> src/main.rs:138:5 [INFO] [stderr] | [INFO] [stderr] 138 | z = x ; [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: `b` [INFO] [stderr] --> src/main.rs:141:12 [INFO] [stderr] | [INFO] [stderr] 141 | let (a,b,c ) = (4,5,6); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `c` [INFO] [stderr] --> src/main.rs:141:14 [INFO] [stderr] | [INFO] [stderr] 141 | let (a,b,c ) = (4,5,6); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_c` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `complete` [INFO] [stderr] --> src/main.rs:156:9 [INFO] [stderr] | [INFO] [stderr] 156 | let complete = &a[..]; [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_complete` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `middle` [INFO] [stderr] --> src/main.rs:157:9 [INFO] [stderr] | [INFO] [stderr] 157 | let middle = &a[2..4]; [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_middle` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/main.rs:167:14 [INFO] [stderr] | [INFO] [stderr] 167 | let mut b = [4,5,6]; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `c` [INFO] [stderr] --> src/main.rs:169:9 [INFO] [stderr] | [INFO] [stderr] 169 | let c = [0;20]; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_c` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:167:9 [INFO] [stderr] | [INFO] [stderr] 167 | let mut b = [4,5,6]; [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: function is never used: `shutdown_iterator` [INFO] [stderr] --> src/main.rs:45:1 [INFO] [stderr] | [INFO] [stderr] 45 | fn shutdown_iterator(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_iterator` [INFO] [stderr] --> src/main.rs:67:1 [INFO] [stderr] | [INFO] [stderr] 67 | fn test_iterator(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `rust_loop` [INFO] [stderr] --> src/main.rs:76:1 [INFO] [stderr] | [INFO] [stderr] 76 | fn rust_loop(){ [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_if` [INFO] [stderr] --> src/main.rs:112:1 [INFO] [stderr] | [INFO] [stderr] 112 | fn test_if(){ [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_tuple` [INFO] [stderr] --> src/main.rs:133:1 [INFO] [stderr] | [INFO] [stderr] 133 | fn test_tuple(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_slice` [INFO] [stderr] --> src/main.rs:153:1 [INFO] [stderr] | [INFO] [stderr] 153 | fn test_slice(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_arr1` [INFO] [stderr] --> src/main.rs:162:1 [INFO] [stderr] | [INFO] [stderr] 162 | fn test_arr1(){ [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `plus_one` [INFO] [stderr] --> src/main.rs:173:1 [INFO] [stderr] | [INFO] [stderr] 173 | fn plus_one(i: i32) -> i32{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `diverges` [INFO] [stderr] --> src/main.rs:179:1 [INFO] [stderr] | [INFO] [stderr] 179 | fn diverges()->!{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `func1` [INFO] [stderr] --> src/main.rs:185:1 [INFO] [stderr] | [INFO] [stderr] 185 | fn func1(x: i32, y :i32)->i32{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_loop` [INFO] [stderr] --> src/main.rs:190:1 [INFO] [stderr] | [INFO] [stderr] 190 | fn test_loop(){ [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `compare` [INFO] [stderr] --> src/main.rs:223:1 [INFO] [stderr] | [INFO] [stderr] 223 | fn compare(){ [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `rand_number` [INFO] [stderr] --> src/main.rs:242:1 [INFO] [stderr] | [INFO] [stderr] 242 | fn rand_number() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `show_number` [INFO] [stderr] --> src/main.rs:255:1 [INFO] [stderr] | [INFO] [stderr] 255 | fn show_number() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/main.rs:135:9 [INFO] [stderr] | [INFO] [stderr] 135 | let y:(i32,&str) = (2,"word"); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `z` is assigned to, but never used [INFO] [stderr] --> src/main.rs:136:13 [INFO] [stderr] | [INFO] [stderr] 136 | let mut z = (1,"rust"); [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_z` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `z` is never read [INFO] [stderr] --> src/main.rs:138:5 [INFO] [stderr] | [INFO] [stderr] 138 | z = x ; [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: `b` [INFO] [stderr] --> src/main.rs:141:12 [INFO] [stderr] | [INFO] [stderr] 141 | let (a,b,c ) = (4,5,6); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `c` [INFO] [stderr] --> src/main.rs:141:14 [INFO] [stderr] | [INFO] [stderr] 141 | let (a,b,c ) = (4,5,6); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_c` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `complete` [INFO] [stderr] --> src/main.rs:156:9 [INFO] [stderr] | [INFO] [stderr] 156 | let complete = &a[..]; [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_complete` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `middle` [INFO] [stderr] --> src/main.rs:157:9 [INFO] [stderr] | [INFO] [stderr] 157 | let middle = &a[2..4]; [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_middle` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/main.rs:167:14 [INFO] [stderr] | [INFO] [stderr] 167 | let mut b = [4,5,6]; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `c` [INFO] [stderr] --> src/main.rs:169:9 [INFO] [stderr] | [INFO] [stderr] 169 | let c = [0;20]; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_c` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:167:9 [INFO] [stderr] | [INFO] [stderr] 167 | let mut b = [4,5,6]; [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: function is never used: `shutdown_iterator` [INFO] [stderr] --> src/main.rs:45:1 [INFO] [stderr] | [INFO] [stderr] 45 | fn shutdown_iterator(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_iterator` [INFO] [stderr] --> src/main.rs:67:1 [INFO] [stderr] | [INFO] [stderr] 67 | fn test_iterator(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `rust_loop` [INFO] [stderr] --> src/main.rs:76:1 [INFO] [stderr] | [INFO] [stderr] 76 | fn rust_loop(){ [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_if` [INFO] [stderr] --> src/main.rs:112:1 [INFO] [stderr] | [INFO] [stderr] 112 | fn test_if(){ [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_tuple` [INFO] [stderr] --> src/main.rs:133:1 [INFO] [stderr] | [INFO] [stderr] 133 | fn test_tuple(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_slice` [INFO] [stderr] --> src/main.rs:153:1 [INFO] [stderr] | [INFO] [stderr] 153 | fn test_slice(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_arr1` [INFO] [stderr] --> src/main.rs:162:1 [INFO] [stderr] | [INFO] [stderr] 162 | fn test_arr1(){ [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `plus_one` [INFO] [stderr] --> src/main.rs:173:1 [INFO] [stderr] | [INFO] [stderr] 173 | fn plus_one(i: i32) -> i32{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `diverges` [INFO] [stderr] --> src/main.rs:179:1 [INFO] [stderr] | [INFO] [stderr] 179 | fn diverges()->!{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `func1` [INFO] [stderr] --> src/main.rs:185:1 [INFO] [stderr] | [INFO] [stderr] 185 | fn func1(x: i32, y :i32)->i32{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_loop` [INFO] [stderr] --> src/main.rs:190:1 [INFO] [stderr] | [INFO] [stderr] 190 | fn test_loop(){ [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `compare` [INFO] [stderr] --> src/main.rs:223:1 [INFO] [stderr] | [INFO] [stderr] 223 | fn compare(){ [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `rand_number` [INFO] [stderr] --> src/main.rs:242:1 [INFO] [stderr] | [INFO] [stderr] 242 | fn rand_number() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `show_number` [INFO] [stderr] --> src/main.rs:255:1 [INFO] [stderr] | [INFO] [stderr] 255 | fn show_number() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.57s [INFO] running `"docker" "inspect" "0c32606c186870931f0c647fdcaeb2c3a8751f67d7fc1959a059687c71428209"` [INFO] running `"docker" "rm" "-f" "0c32606c186870931f0c647fdcaeb2c3a8751f67d7fc1959a059687c71428209"` [INFO] [stdout] 0c32606c186870931f0c647fdcaeb2c3a8751f67d7fc1959a059687c71428209