[INFO] updating cached repository aka-yuki/learning_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/aka-yuki/learning_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/aka-yuki/learning_rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/aka-yuki/learning_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/aka-yuki/learning_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aka-yuki/learning_rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aka-yuki/learning_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aka-yuki/learning_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 847d0dc3421a35cc4d8ae7a17a808c486628806e
[INFO] sha for GitHub repo aka-yuki/learning_rust: 847d0dc3421a35cc4d8ae7a17a808c486628806e
[INFO] validating manifest of aka-yuki/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 aka-yuki/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 aka-yuki/learning_rust
[INFO] finished frobbing aka-yuki/learning_rust
[INFO] frobbed toml for aka-yuki/learning_rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/aka-yuki/learning_rust/Cargo.toml
[INFO] started frobbing aka-yuki/learning_rust
[INFO] finished frobbing aka-yuki/learning_rust
[INFO] frobbed toml for aka-yuki/learning_rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aka-yuki/learning_rust/Cargo.toml
[INFO] crate aka-yuki/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 aka-yuki/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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/aka-yuki/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] 41c39f96a295e27ebe6b073d2a2d3a4bd06a8836ef08778e705fb5dfa73cf259
[INFO] running `"docker" "start" "-a" "41c39f96a295e27ebe6b073d2a2d3a4bd06a8836ef08778e705fb5dfa73cf259"`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand_os v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.05s
[INFO] running `"docker" "inspect" "41c39f96a295e27ebe6b073d2a2d3a4bd06a8836ef08778e705fb5dfa73cf259"`
[INFO] running `"docker" "rm" "-f" "41c39f96a295e27ebe6b073d2a2d3a4bd06a8836ef08778e705fb5dfa73cf259"`
[INFO] [stdout] 41c39f96a295e27ebe6b073d2a2d3a4bd06a8836ef08778e705fb5dfa73cf259
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/aka-yuki/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] 1f1a032c09832ca94cab218c401b3091776fb06b4f057e1de00972347902050b
[INFO] running `"docker" "start" "-a" "1f1a032c09832ca94cab218c401b3091776fb06b4f057e1de00972347902050b"`
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `"docker" "inspect" "1f1a032c09832ca94cab218c401b3091776fb06b4f057e1de00972347902050b"`
[INFO] running `"docker" "rm" "-f" "1f1a032c09832ca94cab218c401b3091776fb06b4f057e1de00972347902050b"`
[INFO] [stdout] 1f1a032c09832ca94cab218c401b3091776fb06b4f057e1de00972347902050b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/aka-yuki/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] a1088280b409fa82c279b17cbb7b8d76a9a9a10fb20817d9716a1f393e0d5f74
[INFO] running `"docker" "start" "-a" "a1088280b409fa82c279b17cbb7b8d76a9a9a10fb20817d9716a1f393e0d5f74"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust-56e2c7d4066108d3
[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" "a1088280b409fa82c279b17cbb7b8d76a9a9a10fb20817d9716a1f393e0d5f74"`
[INFO] running `"docker" "rm" "-f" "a1088280b409fa82c279b17cbb7b8d76a9a9a10fb20817d9716a1f393e0d5f74"`
[INFO] [stdout] a1088280b409fa82c279b17cbb7b8d76a9a9a10fb20817d9716a1f393e0d5f74