[INFO] updating cached repository cdelauder/learn_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cdelauder/learn_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cdelauder/learn_rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/cdelauder/learn_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cdelauder/learn_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cdelauder/learn_rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cdelauder/learn_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cdelauder/learn_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4c544408049cc7a6e43c41a36515c144eedb034c
[INFO] sha for GitHub repo cdelauder/learn_rust: 4c544408049cc7a6e43c41a36515c144eedb034c
[INFO] validating manifest of cdelauder/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 cdelauder/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 cdelauder/learn_rust
[INFO] finished frobbing cdelauder/learn_rust
[INFO] frobbed toml for cdelauder/learn_rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/cdelauder/learn_rust/Cargo.toml
[INFO] started frobbing cdelauder/learn_rust
[INFO] finished frobbing cdelauder/learn_rust
[INFO] frobbed toml for cdelauder/learn_rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cdelauder/learn_rust/Cargo.toml
[INFO] crate cdelauder/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] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cdelauder/learn_rust/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 cdelauder/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/cdelauder/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] b4c1a4c9f7c456cf61b5c03cd3d85eb721ee6ee6baf4d1fb1a3aa54547c8d507
[INFO] running `"docker" "start" "-a" "b4c1a4c9f7c456cf61b5c03cd3d85eb721ee6ee6baf4d1fb1a3aa54547c8d507"`
[INFO] [stderr]    Compiling hello_world v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "b4c1a4c9f7c456cf61b5c03cd3d85eb721ee6ee6baf4d1fb1a3aa54547c8d507"`
[INFO] running `"docker" "rm" "-f" "b4c1a4c9f7c456cf61b5c03cd3d85eb721ee6ee6baf4d1fb1a3aa54547c8d507"`
[INFO] [stdout] b4c1a4c9f7c456cf61b5c03cd3d85eb721ee6ee6baf4d1fb1a3aa54547c8d507
[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/cdelauder/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] dbea29c2b41d4afdc9a86066c36656b2333cf5260c87630cc59f0d2279b84465
[INFO] running `"docker" "start" "-a" "dbea29c2b41d4afdc9a86066c36656b2333cf5260c87630cc59f0d2279b84465"`
[INFO] [stderr]    Compiling hello_world v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "dbea29c2b41d4afdc9a86066c36656b2333cf5260c87630cc59f0d2279b84465"`
[INFO] running `"docker" "rm" "-f" "dbea29c2b41d4afdc9a86066c36656b2333cf5260c87630cc59f0d2279b84465"`
[INFO] [stdout] dbea29c2b41d4afdc9a86066c36656b2333cf5260c87630cc59f0d2279b84465
[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/cdelauder/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] dae1a8781571a216802c55d3f8cffe42972e52dcb3e6d8b76425942cc0e15991
[INFO] running `"docker" "start" "-a" "dae1a8781571a216802c55d3f8cffe42972e52dcb3e6d8b76425942cc0e15991"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_world-636b559d62f51203
[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" "dae1a8781571a216802c55d3f8cffe42972e52dcb3e6d8b76425942cc0e15991"`
[INFO] running `"docker" "rm" "-f" "dae1a8781571a216802c55d3f8cffe42972e52dcb3e6d8b76425942cc0e15991"`
[INFO] [stdout] dae1a8781571a216802c55d3f8cffe42972e52dcb3e6d8b76425942cc0e15991