Dec 14 11:55:47.642 INFO testing BenjaminGuenin/rust-programming-tutorial against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 14 11:55:47.642 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 11:55:47.865 INFO [stdout] bf2e3c7a9cee986b1d3f4542c54a75cbccc554bb0af141da96fa1b5b3d76e4c4
Dec 14 11:55:47.867 INFO running `"docker" "start" "-a" "bf2e3c7a9cee986b1d3f4542c54a75cbccc554bb0af141da96fa1b5b3d76e4c4"`
Dec 14 11:55:48.351 INFO [stderr] usermod: no changes
Dec 14 11:55:48.396 INFO [stderr]    Compiling rust-programming-tutorial v0.1.0 (/source)
Dec 14 11:55:48.799 INFO [stderr] warning: unused variable: `immutable_string`
Dec 14 11:55:48.846 INFO [stderr]  --> src/main.rs:3:9
Dec 14 11:55:48.846 INFO [stderr]   |
Dec 14 11:55:48.846 INFO [stderr] 3 |     let immutable_string = "hello"; // cannot be modified - stored on the stack
Dec 14 11:55:48.847 INFO [stderr]   |         ^^^^^^^^^^^^^^^^ help: consider using `_immutable_string` instead
Dec 14 11:55:48.847 INFO [stderr]   |
Dec 14 11:55:48.847 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 14 11:55:48.847 INFO [stderr] 
Dec 14 11:55:48.847 INFO [stderr] warning: unused variable: `s`
Dec 14 11:55:48.847 INFO [stderr]   --> src/main.rs:11:13
Dec 14 11:55:48.847 INFO [stderr]    |
Dec 14 11:55:48.847 INFO [stderr] 11 |         let s = String::from("hello"); // s is valid from this point forward
Dec 14 11:55:48.847 INFO [stderr]    |             ^ help: consider using `_s` instead
Dec 14 11:55:48.847 INFO [stderr] 
Dec 14 11:55:49.029 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
Dec 14 11:55:49.032 INFO [stderr] su: No module specific data is present
Dec 14 11:55:49.333 INFO running `"docker" "inspect" "bf2e3c7a9cee986b1d3f4542c54a75cbccc554bb0af141da96fa1b5b3d76e4c4"`
Dec 14 11:55:49.422 INFO running `"docker" "rm" "-f" "bf2e3c7a9cee986b1d3f4542c54a75cbccc554bb0af141da96fa1b5b3d76e4c4"`
Dec 14 11:55:49.509 INFO [stdout] bf2e3c7a9cee986b1d3f4542c54a75cbccc554bb0af141da96fa1b5b3d76e4c4
Dec 14 11:55:49.511 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 11:55:49.685 INFO [stdout] 221564b32c48d7a3da2b77fa57618d4b0742f3fd6e6392fbc6232dbc50d36c60
Dec 14 11:55:49.687 INFO running `"docker" "start" "-a" "221564b32c48d7a3da2b77fa57618d4b0742f3fd6e6392fbc6232dbc50d36c60"`
Dec 14 11:55:50.100 INFO [stderr] usermod: no changes
Dec 14 11:55:50.138 INFO [stderr]    Compiling rust-programming-tutorial v0.1.0 (/source)
Dec 14 11:55:50.667 INFO [stderr] warning: unused variable: `immutable_string`
Dec 14 11:55:50.667 INFO [stderr]  --> src/main.rs:3:9
Dec 14 11:55:50.667 INFO [stderr]   |
Dec 14 11:55:50.667 INFO [stderr] 3 |     let immutable_string = "hello"; // cannot be modified - stored on the stack
Dec 14 11:55:50.667 INFO [stderr]   |         ^^^^^^^^^^^^^^^^ help: consider using `_immutable_string` instead
Dec 14 11:55:50.667 INFO [stderr]   |
Dec 14 11:55:50.667 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 14 11:55:50.667 INFO [stderr] 
Dec 14 11:55:50.667 INFO [stderr] warning: unused variable: `s`
Dec 14 11:55:50.667 INFO [stderr]   --> src/main.rs:11:13
Dec 14 11:55:50.667 INFO [stderr]    |
Dec 14 11:55:50.667 INFO [stderr] 11 |         let s = String::from("hello"); // s is valid from this point forward
Dec 14 11:55:50.667 INFO [stderr]    |             ^ help: consider using `_s` instead
Dec 14 11:55:50.667 INFO [stderr] 
Dec 14 11:55:50.980 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
Dec 14 11:55:50.981 INFO [stderr] su: No module specific data is present
Dec 14 11:55:51.737 INFO running `"docker" "inspect" "221564b32c48d7a3da2b77fa57618d4b0742f3fd6e6392fbc6232dbc50d36c60"`
Dec 14 11:55:51.925 INFO running `"docker" "rm" "-f" "221564b32c48d7a3da2b77fa57618d4b0742f3fd6e6392fbc6232dbc50d36c60"`
Dec 14 11:55:52.031 INFO [stdout] 221564b32c48d7a3da2b77fa57618d4b0742f3fd6e6392fbc6232dbc50d36c60
Dec 14 11:55:52.031 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 11:55:52.433 INFO [stdout] 235183e1296469cf508d1bce2f4259ac3de57913fe156fdc1fac0e1dad8fdd13
Dec 14 11:55:52.435 INFO running `"docker" "start" "-a" "235183e1296469cf508d1bce2f4259ac3de57913fe156fdc1fac0e1dad8fdd13"`
Dec 14 11:55:53.288 INFO [stderr] usermod: no changes
Dec 14 11:55:53.353 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 14 11:55:53.353 INFO [stdout] 
Dec 14 11:55:53.353 INFO [stderr]      Running /target/debug/deps/rust_programming_tutorial-5b909acace9c2d0c
Dec 14 11:55:53.353 INFO [stdout] running 0 tests
Dec 14 11:55:53.353 INFO [stdout] 
Dec 14 11:55:53.353 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 11:55:53.353 INFO [stdout] 
Dec 14 11:55:53.354 INFO [stderr] su: No module specific data is present
Dec 14 11:55:53.869 INFO running `"docker" "inspect" "235183e1296469cf508d1bce2f4259ac3de57913fe156fdc1fac0e1dad8fdd13"`
Dec 14 11:55:53.974 INFO running `"docker" "rm" "-f" "235183e1296469cf508d1bce2f4259ac3de57913fe156fdc1fac0e1dad8fdd13"`
Dec 14 11:55:54.091 INFO [stdout] 235183e1296469cf508d1bce2f4259ac3de57913fe156fdc1fac0e1dad8fdd13