[INFO] cloning repository anewton1998/rust_chap_20
[INFO] running `"git" "clone" "--bare" "git://github.com/anewton1998/rust_chap_20.git" "work/cache/sources/gh/anewton1998/rust_chap_20"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/anewton1998/rust_chap_20'...
[INFO] running `"git" "clone" "work/cache/sources/gh/anewton1998/rust_chap_20" "work/ex/beta-1.37-6/sources/1.36.0/gh/anewton1998/rust_chap_20"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/anewton1998/rust_chap_20'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/anewton1998/rust_chap_20" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/anewton1998/rust_chap_20"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/anewton1998/rust_chap_20'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1901c3c406cf32532c676cd3693e19602d3f4555
[INFO] sha for GitHub repo anewton1998/rust_chap_20: 1901c3c406cf32532c676cd3693e19602d3f4555
[INFO] validating manifest of anewton1998/rust_chap_20 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 anewton1998/rust_chap_20 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 anewton1998/rust_chap_20
[INFO] finished frobbing anewton1998/rust_chap_20
[INFO] frobbed toml for anewton1998/rust_chap_20 written to work/ex/beta-1.37-6/sources/1.36.0/gh/anewton1998/rust_chap_20/Cargo.toml
[INFO] started frobbing anewton1998/rust_chap_20
[INFO] finished frobbing anewton1998/rust_chap_20
[INFO] frobbed toml for anewton1998/rust_chap_20 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/anewton1998/rust_chap_20/Cargo.toml
[INFO] crate anewton1998/rust_chap_20 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 anewton1998/rust_chap_20 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/anewton1998/rust_chap_20:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] b8b251232eaf0f1356978a25d808a9f998c4f48f4cdaf3fd7dd6381acfc3e493
[INFO] running `"docker" "start" "-a" "b8b251232eaf0f1356978a25d808a9f998c4f48f4cdaf3fd7dd6381acfc3e493"`
[INFO] [stderr]    Compiling hello v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `"docker" "inspect" "b8b251232eaf0f1356978a25d808a9f998c4f48f4cdaf3fd7dd6381acfc3e493"`
[INFO] running `"docker" "rm" "-f" "b8b251232eaf0f1356978a25d808a9f998c4f48f4cdaf3fd7dd6381acfc3e493"`
[INFO] [stdout] b8b251232eaf0f1356978a25d808a9f998c4f48f4cdaf3fd7dd6381acfc3e493
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/anewton1998/rust_chap_20:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2cc5d6b7e583d7a5baac1a1a177e86460fa539958a5f704a46fd2e0a75404095
[INFO] running `"docker" "start" "-a" "2cc5d6b7e583d7a5baac1a1a177e86460fa539958a5f704a46fd2e0a75404095"`
[INFO] [stderr]    Compiling hello v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `"docker" "inspect" "2cc5d6b7e583d7a5baac1a1a177e86460fa539958a5f704a46fd2e0a75404095"`
[INFO] running `"docker" "rm" "-f" "2cc5d6b7e583d7a5baac1a1a177e86460fa539958a5f704a46fd2e0a75404095"`
[INFO] [stdout] 2cc5d6b7e583d7a5baac1a1a177e86460fa539958a5f704a46fd2e0a75404095
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/anewton1998/rust_chap_20:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] a8a28a3bdf509c441d2e0010e4da7c76a3b8a41a4a1ff8c44f1ad8dcb271e85c
[INFO] running `"docker" "start" "-a" "a8a28a3bdf509c441d2e0010e4da7c76a3b8a41a4a1ff8c44f1ad8dcb271e85c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello-9c8ccab48ff0986f
[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] [stderr]      Running /opt/crater/target/debug/deps/main-f09b085ed5acb645
[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] [stderr]    Doc-tests hello
[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" "a8a28a3bdf509c441d2e0010e4da7c76a3b8a41a4a1ff8c44f1ad8dcb271e85c"`
[INFO] running `"docker" "rm" "-f" "a8a28a3bdf509c441d2e0010e4da7c76a3b8a41a4a1ff8c44f1ad8dcb271e85c"`
[INFO] [stdout] a8a28a3bdf509c441d2e0010e4da7c76a3b8a41a4a1ff8c44f1ad8dcb271e85c