[INFO] updating cached repository zceyakr/learning-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/zceyakr/learning-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/zceyakr/learning-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/zceyakr/learning-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/zceyakr/learning-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zceyakr/learning-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zceyakr/learning-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zceyakr/learning-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 91e949a6bdf7aaad9897e783e15c255273b832e9
[INFO] sha for GitHub repo zceyakr/learning-rust: 91e949a6bdf7aaad9897e783e15c255273b832e9
[INFO] validating manifest of zceyakr/learning-rust 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 zceyakr/learning-rust 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 zceyakr/learning-rust
[INFO] finished frobbing zceyakr/learning-rust
[INFO] frobbed toml for zceyakr/learning-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/zceyakr/learning-rust/Cargo.toml
[INFO] started frobbing zceyakr/learning-rust
[INFO] finished frobbing zceyakr/learning-rust
[INFO] frobbed toml for zceyakr/learning-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zceyakr/learning-rust/Cargo.toml
[INFO] crate zceyakr/learning-rust 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 zceyakr/learning-rust against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/zceyakr/learning-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 405a113135f5de84c836b95e1601689ddb9f7ea242d7f9adc6e5219dec6b376d
[INFO] running `"docker" "start" "-a" "405a113135f5de84c836b95e1601689ddb9f7ea242d7f9adc6e5219dec6b376d"`
[INFO] [stderr]    Compiling smallvec v0.4.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling ferris-says v0.1.1
[INFO] [stderr]    Compiling learning-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.41s
[INFO] running `"docker" "inspect" "405a113135f5de84c836b95e1601689ddb9f7ea242d7f9adc6e5219dec6b376d"`
[INFO] running `"docker" "rm" "-f" "405a113135f5de84c836b95e1601689ddb9f7ea242d7f9adc6e5219dec6b376d"`
[INFO] [stdout] 405a113135f5de84c836b95e1601689ddb9f7ea242d7f9adc6e5219dec6b376d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/zceyakr/learning-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 475caaab99b15464972a5822d04318ee0c35588ab56f3c805f31c2c146ecca03
[INFO] running `"docker" "start" "-a" "475caaab99b15464972a5822d04318ee0c35588ab56f3c805f31c2c146ecca03"`
[INFO] [stderr]    Compiling learning-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "475caaab99b15464972a5822d04318ee0c35588ab56f3c805f31c2c146ecca03"`
[INFO] running `"docker" "rm" "-f" "475caaab99b15464972a5822d04318ee0c35588ab56f3c805f31c2c146ecca03"`
[INFO] [stdout] 475caaab99b15464972a5822d04318ee0c35588ab56f3c805f31c2c146ecca03
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/zceyakr/learning-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 806879b3440c440387903f7d6ab17fa6c1f6cd40d1b62894b224c6eabd9db2a0
[INFO] running `"docker" "start" "-a" "806879b3440c440387903f7d6ab17fa6c1f6cd40d1b62894b224c6eabd9db2a0"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/learning_rust-ad0b37315a4afa21
[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" "806879b3440c440387903f7d6ab17fa6c1f6cd40d1b62894b224c6eabd9db2a0"`
[INFO] running `"docker" "rm" "-f" "806879b3440c440387903f7d6ab17fa6c1f6cd40d1b62894b224c6eabd9db2a0"`
[INFO] [stdout] 806879b3440c440387903f7d6ab17fa6c1f6cd40d1b62894b224c6eabd9db2a0