[INFO] updating cached repository RyanBrushett/following-a-rust-tutorial
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/RyanBrushett/following-a-rust-tutorial
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/RyanBrushett/following-a-rust-tutorial" "work/ex/beta-1.37-6/sources/1.36.0/gh/RyanBrushett/following-a-rust-tutorial"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/RyanBrushett/following-a-rust-tutorial'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/RyanBrushett/following-a-rust-tutorial" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/RyanBrushett/following-a-rust-tutorial"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/RyanBrushett/following-a-rust-tutorial'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2355a16d2bab2d1ebe2a579b1ae0ebaa93150ece
[INFO] sha for GitHub repo RyanBrushett/following-a-rust-tutorial: 2355a16d2bab2d1ebe2a579b1ae0ebaa93150ece
[INFO] validating manifest of RyanBrushett/following-a-rust-tutorial 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 RyanBrushett/following-a-rust-tutorial 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 RyanBrushett/following-a-rust-tutorial
[INFO] finished frobbing RyanBrushett/following-a-rust-tutorial
[INFO] frobbed toml for RyanBrushett/following-a-rust-tutorial written to work/ex/beta-1.37-6/sources/1.36.0/gh/RyanBrushett/following-a-rust-tutorial/Cargo.toml
[INFO] started frobbing RyanBrushett/following-a-rust-tutorial
[INFO] finished frobbing RyanBrushett/following-a-rust-tutorial
[INFO] frobbed toml for RyanBrushett/following-a-rust-tutorial written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/RyanBrushett/following-a-rust-tutorial/Cargo.toml
[INFO] crate RyanBrushett/following-a-rust-tutorial 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 RyanBrushett/following-a-rust-tutorial 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-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/RyanBrushett/following-a-rust-tutorial:/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] c3d52970ee08064c82e59b1f5fa588443e58d071b1345c3deaf3dcf3e9652b86
[INFO] running `"docker" "start" "-a" "c3d52970ee08064c82e59b1f5fa588443e58d071b1345c3deaf3dcf3e9652b86"`
[INFO] [stderr]    Compiling following-a-rust-tutorial v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "c3d52970ee08064c82e59b1f5fa588443e58d071b1345c3deaf3dcf3e9652b86"`
[INFO] running `"docker" "rm" "-f" "c3d52970ee08064c82e59b1f5fa588443e58d071b1345c3deaf3dcf3e9652b86"`
[INFO] [stdout] c3d52970ee08064c82e59b1f5fa588443e58d071b1345c3deaf3dcf3e9652b86
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/RyanBrushett/following-a-rust-tutorial:/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] 49e13c5a295bcd1ffb86819cdda61de1bbbebb297a316796c75c13fb078cd5da
[INFO] running `"docker" "start" "-a" "49e13c5a295bcd1ffb86819cdda61de1bbbebb297a316796c75c13fb078cd5da"`
[INFO] [stderr]    Compiling following-a-rust-tutorial v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "49e13c5a295bcd1ffb86819cdda61de1bbbebb297a316796c75c13fb078cd5da"`
[INFO] running `"docker" "rm" "-f" "49e13c5a295bcd1ffb86819cdda61de1bbbebb297a316796c75c13fb078cd5da"`
[INFO] [stdout] 49e13c5a295bcd1ffb86819cdda61de1bbbebb297a316796c75c13fb078cd5da
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/RyanBrushett/following-a-rust-tutorial:/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] 22d39ebd25753832bc1d5992ee63127d47c16d144a37db146dbcf808073db46e
[INFO] running `"docker" "start" "-a" "22d39ebd25753832bc1d5992ee63127d47c16d144a37db146dbcf808073db46e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/following_a_rust_tutorial-17cbb45af76eca4d
[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" "22d39ebd25753832bc1d5992ee63127d47c16d144a37db146dbcf808073db46e"`
[INFO] running `"docker" "rm" "-f" "22d39ebd25753832bc1d5992ee63127d47c16d144a37db146dbcf808073db46e"`
[INFO] [stdout] 22d39ebd25753832bc1d5992ee63127d47c16d144a37db146dbcf808073db46e