[INFO] updating cached repository iAmao/30-days-of-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/iAmao/30-days-of-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/iAmao/30-days-of-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/iAmao/30-days-of-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/iAmao/30-days-of-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/iAmao/30-days-of-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/iAmao/30-days-of-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/iAmao/30-days-of-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1b329a19bcb0159274f39c3b757461c921235e8c
[INFO] sha for GitHub repo iAmao/30-days-of-rust: 1b329a19bcb0159274f39c3b757461c921235e8c
[INFO] validating manifest of iAmao/30-days-of-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 iAmao/30-days-of-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 iAmao/30-days-of-rust
[INFO] finished frobbing iAmao/30-days-of-rust
[INFO] frobbed toml for iAmao/30-days-of-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/iAmao/30-days-of-rust/Cargo.toml
[INFO] started frobbing iAmao/30-days-of-rust
[INFO] finished frobbing iAmao/30-days-of-rust
[INFO] frobbed toml for iAmao/30-days-of-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/iAmao/30-days-of-rust/Cargo.toml
[INFO] crate iAmao/30-days-of-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 iAmao/30-days-of-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/iAmao/30-days-of-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] 9cdb784cd2ffae674b7fad11b38631ab0674c2f116e07b19aced0117cab10af5
[INFO] running `"docker" "start" "-a" "9cdb784cd2ffae674b7fad11b38631ab0674c2f116e07b19aced0117cab10af5"`
[INFO] [stderr]    Compiling thirty_days_of_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `"docker" "inspect" "9cdb784cd2ffae674b7fad11b38631ab0674c2f116e07b19aced0117cab10af5"`
[INFO] running `"docker" "rm" "-f" "9cdb784cd2ffae674b7fad11b38631ab0674c2f116e07b19aced0117cab10af5"`
[INFO] [stdout] 9cdb784cd2ffae674b7fad11b38631ab0674c2f116e07b19aced0117cab10af5
[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/iAmao/30-days-of-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] f26df8308d6f3c476f90c984670836558d7c72f47f12b1e5ef072693bd661cdc
[INFO] running `"docker" "start" "-a" "f26df8308d6f3c476f90c984670836558d7c72f47f12b1e5ef072693bd661cdc"`
[INFO] [stderr]    Compiling thirty_days_of_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `"docker" "inspect" "f26df8308d6f3c476f90c984670836558d7c72f47f12b1e5ef072693bd661cdc"`
[INFO] running `"docker" "rm" "-f" "f26df8308d6f3c476f90c984670836558d7c72f47f12b1e5ef072693bd661cdc"`
[INFO] [stdout] f26df8308d6f3c476f90c984670836558d7c72f47f12b1e5ef072693bd661cdc
[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/iAmao/30-days-of-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] 0b2cb12415e30e0c2b3367324c44d86286887b8d053c7bae6c289e48051a7d94
[INFO] running `"docker" "start" "-a" "0b2cb12415e30e0c2b3367324c44d86286887b8d053c7bae6c289e48051a7d94"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/thirtylibs-6ecdf537958ac8b5
[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] [stderr]      Running /opt/crater/target/debug/deps/thirty_days_of_rust-bcbe2fdc652f3e4c
[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] [stderr]    Doc-tests thirtylibs
[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" "0b2cb12415e30e0c2b3367324c44d86286887b8d053c7bae6c289e48051a7d94"`
[INFO] running `"docker" "rm" "-f" "0b2cb12415e30e0c2b3367324c44d86286887b8d053c7bae6c289e48051a7d94"`
[INFO] [stdout] 0b2cb12415e30e0c2b3367324c44d86286887b8d053c7bae6c289e48051a7d94