[INFO] updating cached repository vlad-ion/learn_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/vlad-ion/learn_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/vlad-ion/learn_rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/vlad-ion/learn_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/vlad-ion/learn_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vlad-ion/learn_rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vlad-ion/learn_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vlad-ion/learn_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 95b69f893520939ffe1bbb29c30e812ac7b3378d
[INFO] sha for GitHub repo vlad-ion/learn_rust: 95b69f893520939ffe1bbb29c30e812ac7b3378d
[INFO] validating manifest of vlad-ion/learn_rust on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of vlad-ion/learn_rust on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing vlad-ion/learn_rust
[INFO] finished frobbing vlad-ion/learn_rust
[INFO] frobbed toml for vlad-ion/learn_rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/vlad-ion/learn_rust/Cargo.toml
[INFO] started frobbing vlad-ion/learn_rust
[INFO] finished frobbing vlad-ion/learn_rust
[INFO] frobbed toml for vlad-ion/learn_rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vlad-ion/learn_rust/Cargo.toml
[INFO] crate vlad-ion/learn_rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing vlad-ion/learn_rust against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vlad-ion/learn_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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] b05a335c0eb7666f2b937b386bd910980e4953e70a9e977d426ffe75924b367f
[INFO] running `"docker" "start" "-a" "b05a335c0eb7666f2b937b386bd910980e4953e70a9e977d426ffe75924b367f"`
[INFO] [stderr]    Compiling learn_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "b05a335c0eb7666f2b937b386bd910980e4953e70a9e977d426ffe75924b367f"`
[INFO] running `"docker" "rm" "-f" "b05a335c0eb7666f2b937b386bd910980e4953e70a9e977d426ffe75924b367f"`
[INFO] [stdout] b05a335c0eb7666f2b937b386bd910980e4953e70a9e977d426ffe75924b367f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vlad-ion/learn_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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] c6c95d222a557b764be10ba305247d73e48f71087f8e3c569a69871da62e88ce
[INFO] running `"docker" "start" "-a" "c6c95d222a557b764be10ba305247d73e48f71087f8e3c569a69871da62e88ce"`
[INFO] [stderr]    Compiling learn_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "c6c95d222a557b764be10ba305247d73e48f71087f8e3c569a69871da62e88ce"`
[INFO] running `"docker" "rm" "-f" "c6c95d222a557b764be10ba305247d73e48f71087f8e3c569a69871da62e88ce"`
[INFO] [stdout] c6c95d222a557b764be10ba305247d73e48f71087f8e3c569a69871da62e88ce
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vlad-ion/learn_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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] ee257f838ee0bfca0f32f98d03b6b1298b7db166afa18180f9be0cbcc38776cc
[INFO] running `"docker" "start" "-a" "ee257f838ee0bfca0f32f98d03b6b1298b7db166afa18180f9be0cbcc38776cc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/learn_rust-23f963aacb2868ce
[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" "ee257f838ee0bfca0f32f98d03b6b1298b7db166afa18180f9be0cbcc38776cc"`
[INFO] running `"docker" "rm" "-f" "ee257f838ee0bfca0f32f98d03b6b1298b7db166afa18180f9be0cbcc38776cc"`
[INFO] [stdout] ee257f838ee0bfca0f32f98d03b6b1298b7db166afa18180f9be0cbcc38776cc