[INFO] updating cached repository dallin-r-parker/learn_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dallin-r-parker/learn_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dallin-r-parker/learn_rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/dallin-r-parker/learn_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/dallin-r-parker/learn_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dallin-r-parker/learn_rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dallin-r-parker/learn_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dallin-r-parker/learn_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5b1daf2cb6e26ff706f08f552ee11529723c73c3
[INFO] sha for GitHub repo dallin-r-parker/learn_rust: 5b1daf2cb6e26ff706f08f552ee11529723c73c3
[INFO] validating manifest of dallin-r-parker/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 dallin-r-parker/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 dallin-r-parker/learn_rust
[INFO] finished frobbing dallin-r-parker/learn_rust
[INFO] frobbed toml for dallin-r-parker/learn_rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/dallin-r-parker/learn_rust/Cargo.toml
[INFO] started frobbing dallin-r-parker/learn_rust
[INFO] finished frobbing dallin-r-parker/learn_rust
[INFO] frobbed toml for dallin-r-parker/learn_rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dallin-r-parker/learn_rust/Cargo.toml
[INFO] crate dallin-r-parker/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 dallin-r-parker/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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/dallin-r-parker/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] c86a59ce62e6089e57b7b5fb11365804534fe794495b4994c27bb5a9afc4a754
[INFO] running `"docker" "start" "-a" "c86a59ce62e6089e57b7b5fb11365804534fe794495b4994c27bb5a9afc4a754"`
[INFO] [stderr]    Compiling rand v0.3.17
[INFO] [stderr]    Compiling cargo_hello v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.78s
[INFO] running `"docker" "inspect" "c86a59ce62e6089e57b7b5fb11365804534fe794495b4994c27bb5a9afc4a754"`
[INFO] running `"docker" "rm" "-f" "c86a59ce62e6089e57b7b5fb11365804534fe794495b4994c27bb5a9afc4a754"`
[INFO] [stdout] c86a59ce62e6089e57b7b5fb11365804534fe794495b4994c27bb5a9afc4a754
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/dallin-r-parker/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] e82bbb6b0016d9ea47d579bc348b445740030e29687ac9cbd00a144346759a5e
[INFO] running `"docker" "start" "-a" "e82bbb6b0016d9ea47d579bc348b445740030e29687ac9cbd00a144346759a5e"`
[INFO] [stderr]    Compiling cargo_hello v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `"docker" "inspect" "e82bbb6b0016d9ea47d579bc348b445740030e29687ac9cbd00a144346759a5e"`
[INFO] running `"docker" "rm" "-f" "e82bbb6b0016d9ea47d579bc348b445740030e29687ac9cbd00a144346759a5e"`
[INFO] [stdout] e82bbb6b0016d9ea47d579bc348b445740030e29687ac9cbd00a144346759a5e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/dallin-r-parker/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] 9ab08dadc127111315067b3f7fdcd7667f436e14b92ee34d2ada77312bed4a8d
[INFO] running `"docker" "start" "-a" "9ab08dadc127111315067b3f7fdcd7667f436e14b92ee34d2ada77312bed4a8d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cargo_hello-79becd64a475c896
[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" "9ab08dadc127111315067b3f7fdcd7667f436e14b92ee34d2ada77312bed4a8d"`
[INFO] running `"docker" "rm" "-f" "9ab08dadc127111315067b3f7fdcd7667f436e14b92ee34d2ada77312bed4a8d"`
[INFO] [stdout] 9ab08dadc127111315067b3f7fdcd7667f436e14b92ee34d2ada77312bed4a8d