[INFO] updating cached repository Vesnica/learning_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Vesnica/learning_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Vesnica/learning_rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/Vesnica/learning_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Vesnica/learning_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Vesnica/learning_rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Vesnica/learning_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Vesnica/learning_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3231c9a07f7d4d3a7d868e19f8e852559397aa36
[INFO] sha for GitHub repo Vesnica/learning_rust: 3231c9a07f7d4d3a7d868e19f8e852559397aa36
[INFO] validating manifest of Vesnica/learning_rust 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 Vesnica/learning_rust 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 Vesnica/learning_rust
[INFO] finished frobbing Vesnica/learning_rust
[INFO] frobbed toml for Vesnica/learning_rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/Vesnica/learning_rust/Cargo.toml
[INFO] started frobbing Vesnica/learning_rust
[INFO] finished frobbing Vesnica/learning_rust
[INFO] frobbed toml for Vesnica/learning_rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Vesnica/learning_rust/Cargo.toml
[INFO] crate Vesnica/learning_rust 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 Vesnica/learning_rust 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-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Vesnica/learning_rust:/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] e724bfc4b85db9db2dab1e348712a421c6da9b3ce1f7e9303e124aef275a0105
[INFO] running `"docker" "start" "-a" "e724bfc4b85db9db2dab1e348712a421c6da9b3ce1f7e9303e124aef275a0105"`
[INFO] [stderr]    Compiling learning_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "e724bfc4b85db9db2dab1e348712a421c6da9b3ce1f7e9303e124aef275a0105"`
[INFO] running `"docker" "rm" "-f" "e724bfc4b85db9db2dab1e348712a421c6da9b3ce1f7e9303e124aef275a0105"`
[INFO] [stdout] e724bfc4b85db9db2dab1e348712a421c6da9b3ce1f7e9303e124aef275a0105
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Vesnica/learning_rust:/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] 8280678d1af74600573edc9ff75af5976118c0ca4d5ce2a946242c02e7606d40
[INFO] running `"docker" "start" "-a" "8280678d1af74600573edc9ff75af5976118c0ca4d5ce2a946242c02e7606d40"`
[INFO] [stderr]    Compiling learning_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "8280678d1af74600573edc9ff75af5976118c0ca4d5ce2a946242c02e7606d40"`
[INFO] running `"docker" "rm" "-f" "8280678d1af74600573edc9ff75af5976118c0ca4d5ce2a946242c02e7606d40"`
[INFO] [stdout] 8280678d1af74600573edc9ff75af5976118c0ca4d5ce2a946242c02e7606d40
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Vesnica/learning_rust:/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] 886762c0f7bee2b2b9f03b5d67af8d06b8042f41c13ba99a8fef100cc5a51c59
[INFO] running `"docker" "start" "-a" "886762c0f7bee2b2b9f03b5d67af8d06b8042f41c13ba99a8fef100cc5a51c59"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/learning_rust-5c61a773a3843600
[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" "886762c0f7bee2b2b9f03b5d67af8d06b8042f41c13ba99a8fef100cc5a51c59"`
[INFO] running `"docker" "rm" "-f" "886762c0f7bee2b2b9f03b5d67af8d06b8042f41c13ba99a8fef100cc5a51c59"`
[INFO] [stdout] 886762c0f7bee2b2b9f03b5d67af8d06b8042f41c13ba99a8fef100cc5a51c59