[INFO] updating cached repository robertohuertasm/rust-a-gentle-introduction
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/robertohuertasm/rust-a-gentle-introduction
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/robertohuertasm/rust-a-gentle-introduction" "work/ex/beta-1.37-6/sources/1.36.0/gh/robertohuertasm/rust-a-gentle-introduction"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/robertohuertasm/rust-a-gentle-introduction'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/robertohuertasm/rust-a-gentle-introduction" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/robertohuertasm/rust-a-gentle-introduction"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/robertohuertasm/rust-a-gentle-introduction'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7e36dbf2139c284f68e110fefd1edc88dec8e3ab
[INFO] sha for GitHub repo robertohuertasm/rust-a-gentle-introduction: 7e36dbf2139c284f68e110fefd1edc88dec8e3ab
[INFO] validating manifest of robertohuertasm/rust-a-gentle-introduction 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 robertohuertasm/rust-a-gentle-introduction 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 robertohuertasm/rust-a-gentle-introduction
[INFO] finished frobbing robertohuertasm/rust-a-gentle-introduction
[INFO] frobbed toml for robertohuertasm/rust-a-gentle-introduction written to work/ex/beta-1.37-6/sources/1.36.0/gh/robertohuertasm/rust-a-gentle-introduction/Cargo.toml
[INFO] started frobbing robertohuertasm/rust-a-gentle-introduction
[INFO] finished frobbing robertohuertasm/rust-a-gentle-introduction
[INFO] frobbed toml for robertohuertasm/rust-a-gentle-introduction written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/robertohuertasm/rust-a-gentle-introduction/Cargo.toml
[INFO] crate robertohuertasm/rust-a-gentle-introduction 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 robertohuertasm/rust-a-gentle-introduction 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-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/robertohuertasm/rust-a-gentle-introduction:/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] b2b79e00b602242e5b3efe8b74febbe6657b9a329fb217615ef7ace7665bd712
[INFO] running `"docker" "start" "-a" "b2b79e00b602242e5b3efe8b74febbe6657b9a329fb217615ef7ace7665bd712"`
[INFO] [stderr]    Compiling gentle_intro v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "b2b79e00b602242e5b3efe8b74febbe6657b9a329fb217615ef7ace7665bd712"`
[INFO] running `"docker" "rm" "-f" "b2b79e00b602242e5b3efe8b74febbe6657b9a329fb217615ef7ace7665bd712"`
[INFO] [stdout] b2b79e00b602242e5b3efe8b74febbe6657b9a329fb217615ef7ace7665bd712
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/robertohuertasm/rust-a-gentle-introduction:/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] f309f72af903f048f91ab81400299d579d0395c8f37830dfa51a4058b49fab5d
[INFO] running `"docker" "start" "-a" "f309f72af903f048f91ab81400299d579d0395c8f37830dfa51a4058b49fab5d"`
[INFO] [stderr]    Compiling gentle_intro v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "f309f72af903f048f91ab81400299d579d0395c8f37830dfa51a4058b49fab5d"`
[INFO] running `"docker" "rm" "-f" "f309f72af903f048f91ab81400299d579d0395c8f37830dfa51a4058b49fab5d"`
[INFO] [stdout] f309f72af903f048f91ab81400299d579d0395c8f37830dfa51a4058b49fab5d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/robertohuertasm/rust-a-gentle-introduction:/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] b46d90705a491a7ba5e18ed1313f8c72078184a7b3e8e8c4fb25267255ae181a
[INFO] running `"docker" "start" "-a" "b46d90705a491a7ba5e18ed1313f8c72078184a7b3e8e8c4fb25267255ae181a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/gentle_intro-836fe207e1d87397
[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" "b46d90705a491a7ba5e18ed1313f8c72078184a7b3e8e8c4fb25267255ae181a"`
[INFO] running `"docker" "rm" "-f" "b46d90705a491a7ba5e18ed1313f8c72078184a7b3e8e8c4fb25267255ae181a"`
[INFO] [stdout] b46d90705a491a7ba5e18ed1313f8c72078184a7b3e8e8c4fb25267255ae181a