[INFO] updating cached repository Perfect5th/learn_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Perfect5th/learn_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Perfect5th/learn_rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/Perfect5th/learn_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Perfect5th/learn_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Perfect5th/learn_rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Perfect5th/learn_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Perfect5th/learn_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 55a814a6df656ec2d8df5efcf09d6b42a52748a3
[INFO] sha for GitHub repo Perfect5th/learn_rust: 55a814a6df656ec2d8df5efcf09d6b42a52748a3
[INFO] validating manifest of Perfect5th/learn_rust 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 Perfect5th/learn_rust 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 Perfect5th/learn_rust
[INFO] finished frobbing Perfect5th/learn_rust
[INFO] frobbed toml for Perfect5th/learn_rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/Perfect5th/learn_rust/Cargo.toml
[INFO] started frobbing Perfect5th/learn_rust
[INFO] finished frobbing Perfect5th/learn_rust
[INFO] frobbed toml for Perfect5th/learn_rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Perfect5th/learn_rust/Cargo.toml
[INFO] crate Perfect5th/learn_rust 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 Perfect5th/learn_rust 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-4/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/Perfect5th/learn_rust:/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] 0d118473f41665b6f38d9b0de4669137605bbb6a57e20ea049334c714d6be0d2
[INFO] running `"docker" "start" "-a" "0d118473f41665b6f38d9b0de4669137605bbb6a57e20ea049334c714d6be0d2"`
[INFO] [stderr]    Compiling hello_world v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "0d118473f41665b6f38d9b0de4669137605bbb6a57e20ea049334c714d6be0d2"`
[INFO] running `"docker" "rm" "-f" "0d118473f41665b6f38d9b0de4669137605bbb6a57e20ea049334c714d6be0d2"`
[INFO] [stdout] 0d118473f41665b6f38d9b0de4669137605bbb6a57e20ea049334c714d6be0d2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/Perfect5th/learn_rust:/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] d2a82c23afb1a45651bc01502b26fd0ceea1de92da6e259b17c635bb61432743
[INFO] running `"docker" "start" "-a" "d2a82c23afb1a45651bc01502b26fd0ceea1de92da6e259b17c635bb61432743"`
[INFO] [stderr]    Compiling hello_world v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "d2a82c23afb1a45651bc01502b26fd0ceea1de92da6e259b17c635bb61432743"`
[INFO] running `"docker" "rm" "-f" "d2a82c23afb1a45651bc01502b26fd0ceea1de92da6e259b17c635bb61432743"`
[INFO] [stdout] d2a82c23afb1a45651bc01502b26fd0ceea1de92da6e259b17c635bb61432743
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/Perfect5th/learn_rust:/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] 6c5a257ccaef841c8031205980352f6f038cd2e7a4326bcd46c486876bffd275
[INFO] running `"docker" "start" "-a" "6c5a257ccaef841c8031205980352f6f038cd2e7a4326bcd46c486876bffd275"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_world-32ca29bbe05b8115
[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" "6c5a257ccaef841c8031205980352f6f038cd2e7a4326bcd46c486876bffd275"`
[INFO] running `"docker" "rm" "-f" "6c5a257ccaef841c8031205980352f6f038cd2e7a4326bcd46c486876bffd275"`
[INFO] [stdout] 6c5a257ccaef841c8031205980352f6f038cd2e7a4326bcd46c486876bffd275