[INFO] updating cached repository andy-young/Rust-Common-Programming-Concepts
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/andy-young/Rust-Common-Programming-Concepts
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/andy-young/Rust-Common-Programming-Concepts" "work/ex/beta-1.38-1/sources/1.37.0/gh/andy-young/Rust-Common-Programming-Concepts"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/andy-young/Rust-Common-Programming-Concepts'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/andy-young/Rust-Common-Programming-Concepts" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/andy-young/Rust-Common-Programming-Concepts"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/andy-young/Rust-Common-Programming-Concepts'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 327861e65282366262eddaf199af8b632a4778de
[INFO] sha for GitHub repo andy-young/Rust-Common-Programming-Concepts: 327861e65282366262eddaf199af8b632a4778de
[INFO] validating manifest of andy-young/Rust-Common-Programming-Concepts 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 andy-young/Rust-Common-Programming-Concepts 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 andy-young/Rust-Common-Programming-Concepts
[INFO] finished frobbing andy-young/Rust-Common-Programming-Concepts
[INFO] frobbed toml for andy-young/Rust-Common-Programming-Concepts written to work/ex/beta-1.38-1/sources/1.37.0/gh/andy-young/Rust-Common-Programming-Concepts/Cargo.toml
[INFO] started frobbing andy-young/Rust-Common-Programming-Concepts
[INFO] finished frobbing andy-young/Rust-Common-Programming-Concepts
[INFO] frobbed toml for andy-young/Rust-Common-Programming-Concepts written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/andy-young/Rust-Common-Programming-Concepts/Cargo.toml
[INFO] crate andy-young/Rust-Common-Programming-Concepts 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 andy-young/Rust-Common-Programming-Concepts against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/andy-young/Rust-Common-Programming-Concepts:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 5e711e970455b4c2b70f11498a0eccbdbdcf1b34003b69f32ce20c8dc4c21439
[INFO] running `"docker" "start" "-a" "5e711e970455b4c2b70f11498a0eccbdbdcf1b34003b69f32ce20c8dc4c21439"`
[INFO] [stderr]    Compiling variables v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "5e711e970455b4c2b70f11498a0eccbdbdcf1b34003b69f32ce20c8dc4c21439"`
[INFO] running `"docker" "rm" "-f" "5e711e970455b4c2b70f11498a0eccbdbdcf1b34003b69f32ce20c8dc4c21439"`
[INFO] [stdout] 5e711e970455b4c2b70f11498a0eccbdbdcf1b34003b69f32ce20c8dc4c21439
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/andy-young/Rust-Common-Programming-Concepts:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5367dc00afc0875ce9f1912d6c308f60cc4f7c169ae0c83abf65d77d2d231e9d
[INFO] running `"docker" "start" "-a" "5367dc00afc0875ce9f1912d6c308f60cc4f7c169ae0c83abf65d77d2d231e9d"`
[INFO] [stderr]    Compiling variables v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "5367dc00afc0875ce9f1912d6c308f60cc4f7c169ae0c83abf65d77d2d231e9d"`
[INFO] running `"docker" "rm" "-f" "5367dc00afc0875ce9f1912d6c308f60cc4f7c169ae0c83abf65d77d2d231e9d"`
[INFO] [stdout] 5367dc00afc0875ce9f1912d6c308f60cc4f7c169ae0c83abf65d77d2d231e9d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/andy-young/Rust-Common-Programming-Concepts:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 6b33253e2167ccd4414ef9d7c3e9aca30881e45c071f03b506126d8ea9976c3e
[INFO] running `"docker" "start" "-a" "6b33253e2167ccd4414ef9d7c3e9aca30881e45c071f03b506126d8ea9976c3e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/variables-adc49d70192224be
[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" "6b33253e2167ccd4414ef9d7c3e9aca30881e45c071f03b506126d8ea9976c3e"`
[INFO] running `"docker" "rm" "-f" "6b33253e2167ccd4414ef9d7c3e9aca30881e45c071f03b506126d8ea9976c3e"`
[INFO] [stdout] 6b33253e2167ccd4414ef9d7c3e9aca30881e45c071f03b506126d8ea9976c3e