[INFO] updating cached repository VoxWave/Introduction_to_AI_2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/VoxWave/Introduction_to_AI_2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/VoxWave/Introduction_to_AI_2018" "work/ex/beta-1.37-6/sources/1.36.0/gh/VoxWave/Introduction_to_AI_2018"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/VoxWave/Introduction_to_AI_2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/VoxWave/Introduction_to_AI_2018" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/VoxWave/Introduction_to_AI_2018"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/VoxWave/Introduction_to_AI_2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a338fcb647cc10682a5da4c02f19cb1a0da6749a
[INFO] sha for GitHub repo VoxWave/Introduction_to_AI_2018: a338fcb647cc10682a5da4c02f19cb1a0da6749a
[INFO] validating manifest of VoxWave/Introduction_to_AI_2018 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of VoxWave/Introduction_to_AI_2018 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing VoxWave/Introduction_to_AI_2018
[INFO] finished frobbing VoxWave/Introduction_to_AI_2018
[INFO] frobbed toml for VoxWave/Introduction_to_AI_2018 written to work/ex/beta-1.37-6/sources/1.36.0/gh/VoxWave/Introduction_to_AI_2018/Cargo.toml
[INFO] started frobbing VoxWave/Introduction_to_AI_2018
[INFO] finished frobbing VoxWave/Introduction_to_AI_2018
[INFO] frobbed toml for VoxWave/Introduction_to_AI_2018 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/VoxWave/Introduction_to_AI_2018/Cargo.toml
[INFO] crate VoxWave/Introduction_to_AI_2018 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing VoxWave/Introduction_to_AI_2018 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/VoxWave/Introduction_to_AI_2018:/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=warn" "-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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 87e84d713ae35bbd24ea56e03d0889f9723387fec3c069fe9f1af742baff04d6
[INFO] running `"docker" "start" "-a" "87e84d713ae35bbd24ea56e03d0889f9723387fec3c069fe9f1af742baff04d6"`
[INFO] [stderr]    Compiling serde v1.0.78
[INFO] [stderr]    Compiling syn v0.15.3
[INFO] [stderr]    Compiling serde_derive v1.0.78
[INFO] [stderr]    Compiling serde_json v1.0.27
[INFO] [stderr]    Compiling ai_kurssi v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.19s
[INFO] running `"docker" "inspect" "87e84d713ae35bbd24ea56e03d0889f9723387fec3c069fe9f1af742baff04d6"`
[INFO] running `"docker" "rm" "-f" "87e84d713ae35bbd24ea56e03d0889f9723387fec3c069fe9f1af742baff04d6"`
[INFO] [stdout] 87e84d713ae35bbd24ea56e03d0889f9723387fec3c069fe9f1af742baff04d6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/VoxWave/Introduction_to_AI_2018:/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=warn" "-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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6a7c5f8e7f0996df460cfc5d156cf45c18ecab077e079e27e091fe605b2ae68b
[INFO] running `"docker" "start" "-a" "6a7c5f8e7f0996df460cfc5d156cf45c18ecab077e079e27e091fe605b2ae68b"`
[INFO] [stderr]    Compiling ai_kurssi v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "6a7c5f8e7f0996df460cfc5d156cf45c18ecab077e079e27e091fe605b2ae68b"`
[INFO] running `"docker" "rm" "-f" "6a7c5f8e7f0996df460cfc5d156cf45c18ecab077e079e27e091fe605b2ae68b"`
[INFO] [stdout] 6a7c5f8e7f0996df460cfc5d156cf45c18ecab077e079e27e091fe605b2ae68b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/VoxWave/Introduction_to_AI_2018:/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=warn" "-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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 043c535a09bf728ba8c21be0fb4eddd2b70ea597c5069561c06516333b2d3592
[INFO] running `"docker" "start" "-a" "043c535a09bf728ba8c21be0fb4eddd2b70ea597c5069561c06516333b2d3592"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ai_kurssi-6dd25e09a4fd997b
[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" "043c535a09bf728ba8c21be0fb4eddd2b70ea597c5069561c06516333b2d3592"`
[INFO] running `"docker" "rm" "-f" "043c535a09bf728ba8c21be0fb4eddd2b70ea597c5069561c06516333b2d3592"`
[INFO] [stdout] 043c535a09bf728ba8c21be0fb4eddd2b70ea597c5069561c06516333b2d3592