[INFO] updating cached repository rk-projects/learn-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rk-projects/learn-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rk-projects/learn-rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/rk-projects/learn-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/rk-projects/learn-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rk-projects/learn-rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/rk-projects/learn-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/rk-projects/learn-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bafbfb48da8c4ae0e58028e9afe4bab1601944b9
[INFO] sha for GitHub repo rk-projects/learn-rust: bafbfb48da8c4ae0e58028e9afe4bab1601944b9
[INFO] validating manifest of rk-projects/learn-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 rk-projects/learn-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 rk-projects/learn-rust
[INFO] finished frobbing rk-projects/learn-rust
[INFO] frobbed toml for rk-projects/learn-rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/rk-projects/learn-rust/Cargo.toml
[INFO] started frobbing rk-projects/learn-rust
[INFO] finished frobbing rk-projects/learn-rust
[INFO] frobbed toml for rk-projects/learn-rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/rk-projects/learn-rust/Cargo.toml
[INFO] crate rk-projects/learn-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 rk-projects/learn-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/rk-projects/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] d8adbe56bc1181a30b3bd35f47f996d7748a60dccf91c1f5d3f3ee8a0db8683c
[INFO] running `"docker" "start" "-a" "d8adbe56bc1181a30b3bd35f47f996d7748a60dccf91c1f5d3f3ee8a0db8683c"`
[INFO] [stderr]    Compiling learn-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `"docker" "inspect" "d8adbe56bc1181a30b3bd35f47f996d7748a60dccf91c1f5d3f3ee8a0db8683c"`
[INFO] running `"docker" "rm" "-f" "d8adbe56bc1181a30b3bd35f47f996d7748a60dccf91c1f5d3f3ee8a0db8683c"`
[INFO] [stdout] d8adbe56bc1181a30b3bd35f47f996d7748a60dccf91c1f5d3f3ee8a0db8683c
[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/rk-projects/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] cded49f62fe71ad51ba90480279abb32a3fde04e64430870d51c7d57423a7f88
[INFO] running `"docker" "start" "-a" "cded49f62fe71ad51ba90480279abb32a3fde04e64430870d51c7d57423a7f88"`
[INFO] [stderr]    Compiling learn-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `"docker" "inspect" "cded49f62fe71ad51ba90480279abb32a3fde04e64430870d51c7d57423a7f88"`
[INFO] running `"docker" "rm" "-f" "cded49f62fe71ad51ba90480279abb32a3fde04e64430870d51c7d57423a7f88"`
[INFO] [stdout] cded49f62fe71ad51ba90480279abb32a3fde04e64430870d51c7d57423a7f88
[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/rk-projects/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] ec1c2d7b4a88df5b216a50e396d06236f69a4d3a3638113730d06ed90e6c35bf
[INFO] running `"docker" "start" "-a" "ec1c2d7b4a88df5b216a50e396d06236f69a4d3a3638113730d06ed90e6c35bf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/learn_rust-84e6c27e6c7d0a95
[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" "ec1c2d7b4a88df5b216a50e396d06236f69a4d3a3638113730d06ed90e6c35bf"`
[INFO] running `"docker" "rm" "-f" "ec1c2d7b4a88df5b216a50e396d06236f69a4d3a3638113730d06ed90e6c35bf"`
[INFO] [stdout] ec1c2d7b4a88df5b216a50e396d06236f69a4d3a3638113730d06ed90e6c35bf