[INFO] updating cached repository qq1197977022/learn_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/qq1197977022/learn_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/qq1197977022/learn_rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/qq1197977022/learn_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/qq1197977022/learn_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/qq1197977022/learn_rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/qq1197977022/learn_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/qq1197977022/learn_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b120db5a7a9db87333d3fe9d5e5b46ab0a9c51c4
[INFO] sha for GitHub repo qq1197977022/learn_rust: b120db5a7a9db87333d3fe9d5e5b46ab0a9c51c4
[INFO] validating manifest of qq1197977022/learn_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 qq1197977022/learn_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 qq1197977022/learn_rust
[INFO] finished frobbing qq1197977022/learn_rust
[INFO] frobbed toml for qq1197977022/learn_rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/qq1197977022/learn_rust/Cargo.toml
[INFO] started frobbing qq1197977022/learn_rust
[INFO] finished frobbing qq1197977022/learn_rust
[INFO] frobbed toml for qq1197977022/learn_rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/qq1197977022/learn_rust/Cargo.toml
[INFO] crate qq1197977022/learn_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 qq1197977022/learn_rust against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/qq1197977022/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 61af49a7b580918dd2966793e232c6e866cb9e51118820398c02cb88329d8c88
[INFO] running `"docker" "start" "-a" "61af49a7b580918dd2966793e232c6e866cb9e51118820398c02cb88329d8c88"`
[INFO] [stderr]    Compiling learn_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `"docker" "inspect" "61af49a7b580918dd2966793e232c6e866cb9e51118820398c02cb88329d8c88"`
[INFO] running `"docker" "rm" "-f" "61af49a7b580918dd2966793e232c6e866cb9e51118820398c02cb88329d8c88"`
[INFO] [stdout] 61af49a7b580918dd2966793e232c6e866cb9e51118820398c02cb88329d8c88
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/qq1197977022/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 70afb43d86d0e67c2b604ad0fe42b496dd3eb61ca9d4ff06cec86acb05d78ea6
[INFO] running `"docker" "start" "-a" "70afb43d86d0e67c2b604ad0fe42b496dd3eb61ca9d4ff06cec86acb05d78ea6"`
[INFO] [stderr]    Compiling learn_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "70afb43d86d0e67c2b604ad0fe42b496dd3eb61ca9d4ff06cec86acb05d78ea6"`
[INFO] running `"docker" "rm" "-f" "70afb43d86d0e67c2b604ad0fe42b496dd3eb61ca9d4ff06cec86acb05d78ea6"`
[INFO] [stdout] 70afb43d86d0e67c2b604ad0fe42b496dd3eb61ca9d4ff06cec86acb05d78ea6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/qq1197977022/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 6a1ce98854847debee4fbfd0648cb3ed119daf51e410a364df03f9e927397f8f
[INFO] running `"docker" "start" "-a" "6a1ce98854847debee4fbfd0648cb3ed119daf51e410a364df03f9e927397f8f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/learn_rust-87f13d19079e10cc
[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" "6a1ce98854847debee4fbfd0648cb3ed119daf51e410a364df03f9e927397f8f"`
[INFO] running `"docker" "rm" "-f" "6a1ce98854847debee4fbfd0648cb3ed119daf51e410a364df03f9e927397f8f"`
[INFO] [stdout] 6a1ce98854847debee4fbfd0648cb3ed119daf51e410a364df03f9e927397f8f