Nov 17 16:39:46.285 INFO testing BenjaminGuenin/rust-programming-tutorial against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 17 16:39:46.285 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 17 16:39:46.500 INFO [stdout] 571aad0b44f3f1166249ed1d70d3384e5e02c564139b94cb68b191e9f02afcec
Nov 17 16:39:46.501 INFO running `"docker" "start" "-a" "571aad0b44f3f1166249ed1d70d3384e5e02c564139b94cb68b191e9f02afcec"`
Nov 17 16:39:46.894 INFO [stderr] usermod: no changes
Nov 17 16:39:46.950 INFO [stderr]    Compiling rust-programming-tutorial v0.1.0 (/source)
Nov 17 16:39:47.245 INFO [stderr] warning: unused variable: `immutable_string`
Nov 17 16:39:47.245 INFO [stderr]  --> src/main.rs:3:9
Nov 17 16:39:47.245 INFO [stderr]   |
Nov 17 16:39:47.245 INFO [stderr] 3 |     let immutable_string = "hello"; // cannot be modified - stored on the stack
Nov 17 16:39:47.245 INFO [stderr]   |         ^^^^^^^^^^^^^^^^ help: consider using `_immutable_string` instead
Nov 17 16:39:47.245 INFO [stderr]   |
Nov 17 16:39:47.245 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 17 16:39:47.245 INFO [stderr] 
Nov 17 16:39:47.245 INFO [stderr] warning: unused variable: `s`
Nov 17 16:39:47.245 INFO [stderr]   --> src/main.rs:11:13
Nov 17 16:39:47.245 INFO [stderr]    |
Nov 17 16:39:47.245 INFO [stderr] 11 |         let s = String::from("hello"); // s is valid from this point forward
Nov 17 16:39:47.245 INFO [stderr]    |             ^ help: consider using `_s` instead
Nov 17 16:39:47.245 INFO [stderr] 
Nov 17 16:39:47.545 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
Nov 17 16:39:47.548 INFO [stderr] su: No module specific data is present
Nov 17 16:39:47.766 INFO running `"docker" "inspect" "571aad0b44f3f1166249ed1d70d3384e5e02c564139b94cb68b191e9f02afcec"`
Nov 17 16:39:47.862 INFO running `"docker" "rm" "-f" "571aad0b44f3f1166249ed1d70d3384e5e02c564139b94cb68b191e9f02afcec"`
Nov 17 16:39:47.986 INFO [stdout] 571aad0b44f3f1166249ed1d70d3384e5e02c564139b94cb68b191e9f02afcec
Nov 17 16:39:47.989 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 17 16:39:48.299 INFO [stdout] 0c89c76931a74a905bd67389c946778a2af4b620c0f9acee7b73a7b610da589c
Nov 17 16:39:48.305 INFO running `"docker" "start" "-a" "0c89c76931a74a905bd67389c946778a2af4b620c0f9acee7b73a7b610da589c"`
Nov 17 16:39:49.279 INFO [stderr] usermod: no changes
Nov 17 16:39:49.371 INFO [stderr]    Compiling rust-programming-tutorial v0.1.0 (/source)
Nov 17 16:39:49.823 INFO [stderr] warning: unused variable: `immutable_string`
Nov 17 16:39:49.823 INFO [stderr]  --> src/main.rs:3:9
Nov 17 16:39:49.824 INFO [stderr]   |
Nov 17 16:39:49.824 INFO [stderr] 3 |     let immutable_string = "hello"; // cannot be modified - stored on the stack
Nov 17 16:39:49.824 INFO [stderr]   |         ^^^^^^^^^^^^^^^^ help: consider using `_immutable_string` instead
Nov 17 16:39:49.825 INFO [stderr]   |
Nov 17 16:39:49.825 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 17 16:39:49.825 INFO [stderr] 
Nov 17 16:39:49.828 INFO [stderr] warning: unused variable: `s`
Nov 17 16:39:49.828 INFO [stderr]   --> src/main.rs:11:13
Nov 17 16:39:49.828 INFO [stderr]    |
Nov 17 16:39:49.829 INFO [stderr] 11 |         let s = String::from("hello"); // s is valid from this point forward
Nov 17 16:39:49.829 INFO [stderr]    |             ^ help: consider using `_s` instead
Nov 17 16:39:49.829 INFO [stderr] 
Nov 17 16:39:50.278 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
Nov 17 16:39:50.278 INFO [stderr] su: No module specific data is present
Nov 17 16:39:50.913 INFO running `"docker" "inspect" "0c89c76931a74a905bd67389c946778a2af4b620c0f9acee7b73a7b610da589c"`
Nov 17 16:39:51.153 INFO running `"docker" "rm" "-f" "0c89c76931a74a905bd67389c946778a2af4b620c0f9acee7b73a7b610da589c"`
Nov 17 16:39:51.535 INFO [stdout] 0c89c76931a74a905bd67389c946778a2af4b620c0f9acee7b73a7b610da589c
Nov 17 16:39:51.542 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 17 16:39:51.899 INFO [stdout] df4892ff75ef1d9456333acc6ac870754fcda928d2e3332486e69556e99ba867
Nov 17 16:39:51.901 INFO running `"docker" "start" "-a" "df4892ff75ef1d9456333acc6ac870754fcda928d2e3332486e69556e99ba867"`
Nov 17 16:39:52.928 INFO [stderr] usermod: no changes
Nov 17 16:39:52.983 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Nov 17 16:39:52.983 INFO [stderr]      Running /target/debug/deps/rust_programming_tutorial-564f874600a4d285
Nov 17 16:39:52.987 INFO [stdout] 
Nov 17 16:39:52.987 INFO [stdout] running 0 tests
Nov 17 16:39:52.987 INFO [stdout] 
Nov 17 16:39:52.987 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 16:39:52.987 INFO [stdout] 
Nov 17 16:39:52.995 INFO [stderr] su: No module specific data is present
Nov 17 16:39:53.461 INFO running `"docker" "inspect" "df4892ff75ef1d9456333acc6ac870754fcda928d2e3332486e69556e99ba867"`
Nov 17 16:39:53.560 INFO running `"docker" "rm" "-f" "df4892ff75ef1d9456333acc6ac870754fcda928d2e3332486e69556e99ba867"`
Nov 17 16:39:53.665 INFO [stdout] df4892ff75ef1d9456333acc6ac870754fcda928d2e3332486e69556e99ba867