[INFO] updating cached repository sundowns/rust-book-tutorial
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sundowns/rust-book-tutorial
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sundowns/rust-book-tutorial" "work/ex/beta-1.38-1/sources/1.37.0/gh/sundowns/rust-book-tutorial"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/sundowns/rust-book-tutorial'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sundowns/rust-book-tutorial" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sundowns/rust-book-tutorial"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sundowns/rust-book-tutorial'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 211cfc0835d1d1324a1cb550f3b1bddc212ece02
[INFO] sha for GitHub repo sundowns/rust-book-tutorial: 211cfc0835d1d1324a1cb550f3b1bddc212ece02
[INFO] validating manifest of sundowns/rust-book-tutorial 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 sundowns/rust-book-tutorial 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 sundowns/rust-book-tutorial
[INFO] finished frobbing sundowns/rust-book-tutorial
[INFO] frobbed toml for sundowns/rust-book-tutorial written to work/ex/beta-1.38-1/sources/1.37.0/gh/sundowns/rust-book-tutorial/Cargo.toml
[INFO] started frobbing sundowns/rust-book-tutorial
[INFO] finished frobbing sundowns/rust-book-tutorial
[INFO] frobbed toml for sundowns/rust-book-tutorial written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sundowns/rust-book-tutorial/Cargo.toml
[INFO] crate sundowns/rust-book-tutorial 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 sundowns/rust-book-tutorial 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-0/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/sundowns/rust-book-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 20cd289b8f622fdb81dfdf227613e1b590ffbd2bb4f0c9b9480c26e7a0a0eca5
[INFO] running `"docker" "start" "-a" "20cd289b8f622fdb81dfdf227613e1b590ffbd2bb4f0c9b9480c26e7a0a0eca5"`
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `"docker" "inspect" "20cd289b8f622fdb81dfdf227613e1b590ffbd2bb4f0c9b9480c26e7a0a0eca5"`
[INFO] running `"docker" "rm" "-f" "20cd289b8f622fdb81dfdf227613e1b590ffbd2bb4f0c9b9480c26e7a0a0eca5"`
[INFO] [stdout] 20cd289b8f622fdb81dfdf227613e1b590ffbd2bb4f0c9b9480c26e7a0a0eca5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/sundowns/rust-book-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 02fae4597828e5caa26b941fa95bd8097b25dc8e0d28a5a2e49a1855ad2fe40c
[INFO] running `"docker" "start" "-a" "02fae4597828e5caa26b941fa95bd8097b25dc8e0d28a5a2e49a1855ad2fe40c"`
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `"docker" "inspect" "02fae4597828e5caa26b941fa95bd8097b25dc8e0d28a5a2e49a1855ad2fe40c"`
[INFO] running `"docker" "rm" "-f" "02fae4597828e5caa26b941fa95bd8097b25dc8e0d28a5a2e49a1855ad2fe40c"`
[INFO] [stdout] 02fae4597828e5caa26b941fa95bd8097b25dc8e0d28a5a2e49a1855ad2fe40c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/sundowns/rust-book-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 5f3c7dd239e0a71dfefee6b7c5992978a304111fafd5fc0bde94fc6da8a949a3
[INFO] running `"docker" "start" "-a" "5f3c7dd239e0a71dfefee6b7c5992978a304111fafd5fc0bde94fc6da8a949a3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/minigrep-71f1d2ea303b99d3
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::case_insensitive ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/minigrep-ff2cfaeab7bc6a0d
[INFO] [stdout] test tests::case_sensitive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests minigrep
[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] [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" "5f3c7dd239e0a71dfefee6b7c5992978a304111fafd5fc0bde94fc6da8a949a3"`
[INFO] running `"docker" "rm" "-f" "5f3c7dd239e0a71dfefee6b7c5992978a304111fafd5fc0bde94fc6da8a949a3"`
[INFO] [stdout] 5f3c7dd239e0a71dfefee6b7c5992978a304111fafd5fc0bde94fc6da8a949a3