[INFO] updating cached repository massih/rust_book
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/massih/rust_book
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/massih/rust_book" "work/ex/beta-1.37-6/sources/1.36.0/gh/massih/rust_book"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/massih/rust_book'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/massih/rust_book" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/massih/rust_book"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/massih/rust_book'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d158ebbce8c69207e137df888b413f4e8c385595
[INFO] sha for GitHub repo massih/rust_book: d158ebbce8c69207e137df888b413f4e8c385595
[INFO] validating manifest of massih/rust_book 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 massih/rust_book 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 massih/rust_book
[INFO] finished frobbing massih/rust_book
[INFO] frobbed toml for massih/rust_book written to work/ex/beta-1.37-6/sources/1.36.0/gh/massih/rust_book/Cargo.toml
[INFO] started frobbing massih/rust_book
[INFO] finished frobbing massih/rust_book
[INFO] frobbed toml for massih/rust_book written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/massih/rust_book/Cargo.toml
[INFO] crate massih/rust_book 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 massih/rust_book 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-2/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/massih/rust_book:/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] b63f7b082ec36f1e9b846c1d6a9615a90d34c2308e571e7334402dd557d8139a
[INFO] running `"docker" "start" "-a" "b63f7b082ec36f1e9b846c1d6a9615a90d34c2308e571e7334402dd557d8139a"`
[INFO] [stderr]    Compiling rand v0.4.5
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling rust1 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.95s
[INFO] running `"docker" "inspect" "b63f7b082ec36f1e9b846c1d6a9615a90d34c2308e571e7334402dd557d8139a"`
[INFO] running `"docker" "rm" "-f" "b63f7b082ec36f1e9b846c1d6a9615a90d34c2308e571e7334402dd557d8139a"`
[INFO] [stdout] b63f7b082ec36f1e9b846c1d6a9615a90d34c2308e571e7334402dd557d8139a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/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/massih/rust_book:/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] 969c83a219170d306def949f419ee659656bceb024ac2ea7d81fba5c3cc84eed
[INFO] running `"docker" "start" "-a" "969c83a219170d306def949f419ee659656bceb024ac2ea7d81fba5c3cc84eed"`
[INFO] [stderr]    Compiling rust1 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "969c83a219170d306def949f419ee659656bceb024ac2ea7d81fba5c3cc84eed"`
[INFO] running `"docker" "rm" "-f" "969c83a219170d306def949f419ee659656bceb024ac2ea7d81fba5c3cc84eed"`
[INFO] [stdout] 969c83a219170d306def949f419ee659656bceb024ac2ea7d81fba5c3cc84eed
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/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/massih/rust_book:/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] 141da201eb36e771ec3db4783e9a5c8d0804f1a27e7283bba5c192390e7f58aa
[INFO] running `"docker" "start" "-a" "141da201eb36e771ec3db4783e9a5c8d0804f1a27e7283bba5c192390e7f58aa"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust1-ef244869f32843d3
[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" "141da201eb36e771ec3db4783e9a5c8d0804f1a27e7283bba5c192390e7f58aa"`
[INFO] running `"docker" "rm" "-f" "141da201eb36e771ec3db4783e9a5c8d0804f1a27e7283bba5c192390e7f58aa"`
[INFO] [stdout] 141da201eb36e771ec3db4783e9a5c8d0804f1a27e7283bba5c192390e7f58aa