[INFO] updating cached repository DRL9/learn_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/DRL9/learn_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/DRL9/learn_rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/DRL9/learn_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/DRL9/learn_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DRL9/learn_rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DRL9/learn_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DRL9/learn_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 31c2b555608a01aec0460ced04f671d152e4275b
[INFO] sha for GitHub repo DRL9/learn_rust: 31c2b555608a01aec0460ced04f671d152e4275b
[INFO] validating manifest of DRL9/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 DRL9/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 DRL9/learn_rust
[INFO] finished frobbing DRL9/learn_rust
[INFO] frobbed toml for DRL9/learn_rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/DRL9/learn_rust/Cargo.toml
[INFO] started frobbing DRL9/learn_rust
[INFO] finished frobbing DRL9/learn_rust
[INFO] frobbed toml for DRL9/learn_rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DRL9/learn_rust/Cargo.toml
[INFO] crate DRL9/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing DRL9/learn_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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DRL9/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] dc636e73b04cfd051b9170fc9699f25b4a98e3d301c0c0b2128d441e0e899404
[INFO] running `"docker" "start" "-a" "dc636e73b04cfd051b9170fc9699f25b4a98e3d301c0c0b2128d441e0e899404"`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling smallvec v0.4.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling backtrace v0.3.33
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling ferris-says v0.1.1
[INFO] [stderr]    Compiling learn_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.10s
[INFO] running `"docker" "inspect" "dc636e73b04cfd051b9170fc9699f25b4a98e3d301c0c0b2128d441e0e899404"`
[INFO] running `"docker" "rm" "-f" "dc636e73b04cfd051b9170fc9699f25b4a98e3d301c0c0b2128d441e0e899404"`
[INFO] [stdout] dc636e73b04cfd051b9170fc9699f25b4a98e3d301c0c0b2128d441e0e899404
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DRL9/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3a4885a77d9b86dc76b65c7f99fcb94949545fab8db324bf0de68e9b64da86e8
[INFO] running `"docker" "start" "-a" "3a4885a77d9b86dc76b65c7f99fcb94949545fab8db324bf0de68e9b64da86e8"`
[INFO] [stderr]    Compiling learn_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "3a4885a77d9b86dc76b65c7f99fcb94949545fab8db324bf0de68e9b64da86e8"`
[INFO] running `"docker" "rm" "-f" "3a4885a77d9b86dc76b65c7f99fcb94949545fab8db324bf0de68e9b64da86e8"`
[INFO] [stdout] 3a4885a77d9b86dc76b65c7f99fcb94949545fab8db324bf0de68e9b64da86e8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DRL9/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] a2ba3c2f12911ef871e86a6a1846b7dd36c83d28ca5b7c76ff338cbd331c3968
[INFO] running `"docker" "start" "-a" "a2ba3c2f12911ef871e86a6a1846b7dd36c83d28ca5b7c76ff338cbd331c3968"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/learn_rust-939a15485fced9c4
[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" "a2ba3c2f12911ef871e86a6a1846b7dd36c83d28ca5b7c76ff338cbd331c3968"`
[INFO] running `"docker" "rm" "-f" "a2ba3c2f12911ef871e86a6a1846b7dd36c83d28ca5b7c76ff338cbd331c3968"`
[INFO] [stdout] a2ba3c2f12911ef871e86a6a1846b7dd36c83d28ca5b7c76ff338cbd331c3968