[INFO] updating cached repository bartsmykla/rust_learning
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bartsmykla/rust_learning
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bartsmykla/rust_learning" "work/ex/beta-1.37-6/sources/1.36.0/gh/bartsmykla/rust_learning"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/bartsmykla/rust_learning'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bartsmykla/rust_learning" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/bartsmykla/rust_learning"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/bartsmykla/rust_learning'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2641c2191be0ef671f1326ba3ccdd1c861bb9054
[INFO] sha for GitHub repo bartsmykla/rust_learning: 2641c2191be0ef671f1326ba3ccdd1c861bb9054
[INFO] validating manifest of bartsmykla/rust_learning 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 bartsmykla/rust_learning 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 bartsmykla/rust_learning
[INFO] finished frobbing bartsmykla/rust_learning
[INFO] frobbed toml for bartsmykla/rust_learning written to work/ex/beta-1.37-6/sources/1.36.0/gh/bartsmykla/rust_learning/Cargo.toml
[INFO] started frobbing bartsmykla/rust_learning
[INFO] finished frobbing bartsmykla/rust_learning
[INFO] frobbed toml for bartsmykla/rust_learning written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/bartsmykla/rust_learning/Cargo.toml
[INFO] crate bartsmykla/rust_learning 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 bartsmykla/rust_learning 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-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/bartsmykla/rust_learning:/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] 3271dd605806161cc16b8b7feea1ada5aea081abef5a49d7282b8c590f16efd5
[INFO] running `"docker" "start" "-a" "3271dd605806161cc16b8b7feea1ada5aea081abef5a49d7282b8c590f16efd5"`
[INFO] [stderr]    Compiling learning v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.73s
[INFO] running `"docker" "inspect" "3271dd605806161cc16b8b7feea1ada5aea081abef5a49d7282b8c590f16efd5"`
[INFO] running `"docker" "rm" "-f" "3271dd605806161cc16b8b7feea1ada5aea081abef5a49d7282b8c590f16efd5"`
[INFO] [stdout] 3271dd605806161cc16b8b7feea1ada5aea081abef5a49d7282b8c590f16efd5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/bartsmykla/rust_learning:/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] 7ef705db38580be0a22a793e94036d75fc16ba1a5a35d00f7d72f61d78a2fe3b
[INFO] running `"docker" "start" "-a" "7ef705db38580be0a22a793e94036d75fc16ba1a5a35d00f7d72f61d78a2fe3b"`
[INFO] [stderr]    Compiling learning v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `"docker" "inspect" "7ef705db38580be0a22a793e94036d75fc16ba1a5a35d00f7d72f61d78a2fe3b"`
[INFO] running `"docker" "rm" "-f" "7ef705db38580be0a22a793e94036d75fc16ba1a5a35d00f7d72f61d78a2fe3b"`
[INFO] [stdout] 7ef705db38580be0a22a793e94036d75fc16ba1a5a35d00f7d72f61d78a2fe3b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/bartsmykla/rust_learning:/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] a7c61f6aebedb92399175390ed331ee768f019581b16e91723e3524247f656f6
[INFO] running `"docker" "start" "-a" "a7c61f6aebedb92399175390ed331ee768f019581b16e91723e3524247f656f6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/learning-da089a639e30758e
[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] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/main-866f20a8f8826617
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests learning
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "a7c61f6aebedb92399175390ed331ee768f019581b16e91723e3524247f656f6"`
[INFO] running `"docker" "rm" "-f" "a7c61f6aebedb92399175390ed331ee768f019581b16e91723e3524247f656f6"`
[INFO] [stdout] a7c61f6aebedb92399175390ed331ee768f019581b16e91723e3524247f656f6