Dec 14 03:35:25.124 INFO testing akuraj/learn_rust against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 14 03:35:25.124 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 03:35:25.544 INFO [stdout] ced4a7ba86f899d2fa533471ca15bc840fa9a800662d79c042ed161465945a31
Dec 14 03:35:25.549 INFO running `"docker" "start" "-a" "ced4a7ba86f899d2fa533471ca15bc840fa9a800662d79c042ed161465945a31"`
Dec 14 03:35:27.349 INFO [stderr] usermod: no changes
Dec 14 03:35:27.423 INFO [stderr]    Compiling learn_rust v0.1.0 (/source)
Dec 14 03:35:28.019 INFO [stderr] warning: unused variable: `x`
Dec 14 03:35:28.019 INFO [stderr]  --> src/test_lifetimes.rs:1:34
Dec 14 03:35:28.019 INFO [stderr]   |
Dec 14 03:35:28.019 INFO [stderr] 1 | pub fn foo< 'c, 'b, 'a/*: 'b*/>( x: &'a u32, y: &'b u32, z: &'c u32 ) -> &'b u32 {
Dec 14 03:35:28.019 INFO [stderr]   |                                  ^ help: consider using `_x` instead
Dec 14 03:35:28.019 INFO [stderr]   |
Dec 14 03:35:28.019 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 14 03:35:28.019 INFO [stderr] 
Dec 14 03:35:28.019 INFO [stderr] warning: unused variable: `z`
Dec 14 03:35:28.019 INFO [stderr]  --> src/test_lifetimes.rs:1:58
Dec 14 03:35:28.019 INFO [stderr]   |
Dec 14 03:35:28.019 INFO [stderr] 1 | pub fn foo< 'c, 'b, 'a/*: 'b*/>( x: &'a u32, y: &'b u32, z: &'c u32 ) -> &'b u32 {
Dec 14 03:35:28.019 INFO [stderr]   |                                                          ^ help: consider using `_z` instead
Dec 14 03:35:28.019 INFO [stderr] 
Dec 14 03:35:28.019 INFO [stderr] warning: variable `a` is assigned to, but never used
Dec 14 03:35:28.019 INFO [stderr]  --> src/test_lifetimes.rs:9:9
Dec 14 03:35:28.019 INFO [stderr]   |
Dec 14 03:35:28.019 INFO [stderr] 9 |     let a: &u32;
Dec 14 03:35:28.019 INFO [stderr]   |         ^
Dec 14 03:35:28.019 INFO [stderr]   |
Dec 14 03:35:28.019 INFO [stderr]   = note: consider using `_a` instead
Dec 14 03:35:28.019 INFO [stderr] 
Dec 14 03:35:28.019 INFO [stderr] warning: value assigned to `a` is never read
Dec 14 03:35:28.019 INFO [stderr]   --> src/test_lifetimes.rs:15:9
Dec 14 03:35:28.019 INFO [stderr]    |
Dec 14 03:35:28.019 INFO [stderr] 15 |         a = {
Dec 14 03:35:28.019 INFO [stderr]    |         ^
Dec 14 03:35:28.019 INFO [stderr]    |
Dec 14 03:35:28.019 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 14 03:35:28.019 INFO [stderr] 
Dec 14 03:35:28.442 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
Dec 14 03:35:28.445 INFO [stderr] su: No module specific data is present
Dec 14 03:35:29.555 INFO running `"docker" "inspect" "ced4a7ba86f899d2fa533471ca15bc840fa9a800662d79c042ed161465945a31"`
Dec 14 03:35:29.963 INFO running `"docker" "rm" "-f" "ced4a7ba86f899d2fa533471ca15bc840fa9a800662d79c042ed161465945a31"`
Dec 14 03:35:30.339 INFO [stdout] ced4a7ba86f899d2fa533471ca15bc840fa9a800662d79c042ed161465945a31
Dec 14 03:35:30.351 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 03:35:30.935 INFO [stdout] 121b3c4ff86744b8a5e1c0cbf3e45070ce0613d3e5f9876c0d659c3bcc4fa909
Dec 14 03:35:30.943 INFO running `"docker" "start" "-a" "121b3c4ff86744b8a5e1c0cbf3e45070ce0613d3e5f9876c0d659c3bcc4fa909"`
Dec 14 03:35:32.663 INFO [stderr] usermod: no changes
Dec 14 03:35:32.724 INFO [stderr]    Compiling learn_rust v0.1.0 (/source)
Dec 14 03:35:33.387 INFO [stderr] warning: unused variable: `x`
Dec 14 03:35:33.387 INFO [stderr]  --> src/test_lifetimes.rs:1:34
Dec 14 03:35:33.387 INFO [stderr]   |
Dec 14 03:35:33.387 INFO [stderr] 1 | pub fn foo< 'c, 'b, 'a/*: 'b*/>( x: &'a u32, y: &'b u32, z: &'c u32 ) -> &'b u32 {
Dec 14 03:35:33.387 INFO [stderr]   |                                  ^ help: consider using `_x` instead
Dec 14 03:35:33.387 INFO [stderr]   |
Dec 14 03:35:33.387 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 14 03:35:33.387 INFO [stderr] 
Dec 14 03:35:33.387 INFO [stderr] warning: unused variable: `z`
Dec 14 03:35:33.387 INFO [stderr]  --> src/test_lifetimes.rs:1:58
Dec 14 03:35:33.387 INFO [stderr]   |
Dec 14 03:35:33.387 INFO [stderr] 1 | pub fn foo< 'c, 'b, 'a/*: 'b*/>( x: &'a u32, y: &'b u32, z: &'c u32 ) -> &'b u32 {
Dec 14 03:35:33.387 INFO [stderr]   |                                                          ^ help: consider using `_z` instead
Dec 14 03:35:33.387 INFO [stderr] 
Dec 14 03:35:33.387 INFO [stderr] warning: variable `a` is assigned to, but never used
Dec 14 03:35:33.387 INFO [stderr]  --> src/test_lifetimes.rs:9:9
Dec 14 03:35:33.387 INFO [stderr]   |
Dec 14 03:35:33.387 INFO [stderr] 9 |     let a: &u32;
Dec 14 03:35:33.387 INFO [stderr]   |         ^
Dec 14 03:35:33.387 INFO [stderr]   |
Dec 14 03:35:33.387 INFO [stderr]   = note: consider using `_a` instead
Dec 14 03:35:33.387 INFO [stderr] 
Dec 14 03:35:33.387 INFO [stderr] warning: value assigned to `a` is never read
Dec 14 03:35:33.387 INFO [stderr]   --> src/test_lifetimes.rs:15:9
Dec 14 03:35:33.387 INFO [stderr]    |
Dec 14 03:35:33.387 INFO [stderr] 15 |         a = {
Dec 14 03:35:33.387 INFO [stderr]    |         ^
Dec 14 03:35:33.387 INFO [stderr]    |
Dec 14 03:35:33.387 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 14 03:35:33.387 INFO [stderr] 
Dec 14 03:35:33.804 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
Dec 14 03:35:33.811 INFO [stderr] su: No module specific data is present
Dec 14 03:35:35.135 INFO running `"docker" "inspect" "121b3c4ff86744b8a5e1c0cbf3e45070ce0613d3e5f9876c0d659c3bcc4fa909"`
Dec 14 03:35:35.525 INFO running `"docker" "rm" "-f" "121b3c4ff86744b8a5e1c0cbf3e45070ce0613d3e5f9876c0d659c3bcc4fa909"`
Dec 14 03:35:35.863 INFO [stdout] 121b3c4ff86744b8a5e1c0cbf3e45070ce0613d3e5f9876c0d659c3bcc4fa909
Dec 14 03:35:35.871 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 03:35:36.482 INFO [stdout] dee942c0e240b259fafee6224c5d8e4a59b29945ad5cd36bb98dea6d5dd9753c
Dec 14 03:35:36.485 INFO running `"docker" "start" "-a" "dee942c0e240b259fafee6224c5d8e4a59b29945ad5cd36bb98dea6d5dd9753c"`
Dec 14 03:35:37.865 INFO [stderr] usermod: no changes
Dec 14 03:35:37.911 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 14 03:35:37.911 INFO [stderr]      Running /target/debug/deps/learn_rust-da8e71b48aa50f7a
Dec 14 03:35:37.913 INFO [stdout] 
Dec 14 03:35:37.913 INFO [stdout] running 0 tests
Dec 14 03:35:37.913 INFO [stdout] 
Dec 14 03:35:37.913 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 03:35:37.913 INFO [stdout] 
Dec 14 03:35:37.923 INFO [stderr] su: No module specific data is present
Dec 14 03:35:38.797 INFO running `"docker" "inspect" "dee942c0e240b259fafee6224c5d8e4a59b29945ad5cd36bb98dea6d5dd9753c"`
Dec 14 03:35:39.041 INFO running `"docker" "rm" "-f" "dee942c0e240b259fafee6224c5d8e4a59b29945ad5cd36bb98dea6d5dd9753c"`
Dec 14 03:35:39.442 INFO [stdout] dee942c0e240b259fafee6224c5d8e4a59b29945ad5cd36bb98dea6d5dd9753c