[INFO] updating cached repository rahmanfadhil/learn-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rahmanfadhil/learn-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rahmanfadhil/learn-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/rahmanfadhil/learn-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/rahmanfadhil/learn-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rahmanfadhil/learn-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rahmanfadhil/learn-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rahmanfadhil/learn-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b33953f4bd6d572533f05cce038cd398acc36549
[INFO] sha for GitHub repo rahmanfadhil/learn-rust: b33953f4bd6d572533f05cce038cd398acc36549
[INFO] validating manifest of rahmanfadhil/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 rahmanfadhil/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 rahmanfadhil/learn-rust
[INFO] finished frobbing rahmanfadhil/learn-rust
[INFO] frobbed toml for rahmanfadhil/learn-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/rahmanfadhil/learn-rust/Cargo.toml
[INFO] started frobbing rahmanfadhil/learn-rust
[INFO] finished frobbing rahmanfadhil/learn-rust
[INFO] frobbed toml for rahmanfadhil/learn-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rahmanfadhil/learn-rust/Cargo.toml
[INFO] crate rahmanfadhil/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 rahmanfadhil/learn-rust against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rahmanfadhil/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] e25663b28fe1eaae808b9b06e9e3b158a03e72e2ac77827dc37276b68545326e
[INFO] running `"docker" "start" "-a" "e25663b28fe1eaae808b9b06e9e3b158a03e72e2ac77827dc37276b68545326e"`
[INFO] [stderr]    Compiling rust-sandbox v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "e25663b28fe1eaae808b9b06e9e3b158a03e72e2ac77827dc37276b68545326e"`
[INFO] running `"docker" "rm" "-f" "e25663b28fe1eaae808b9b06e9e3b158a03e72e2ac77827dc37276b68545326e"`
[INFO] [stdout] e25663b28fe1eaae808b9b06e9e3b158a03e72e2ac77827dc37276b68545326e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rahmanfadhil/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4289d83c2c9d10783b8c7de0c899a722c50ce2165a3887dc41064a9817138395
[INFO] running `"docker" "start" "-a" "4289d83c2c9d10783b8c7de0c899a722c50ce2165a3887dc41064a9817138395"`
[INFO] [stderr]    Compiling rust-sandbox v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `"docker" "inspect" "4289d83c2c9d10783b8c7de0c899a722c50ce2165a3887dc41064a9817138395"`
[INFO] running `"docker" "rm" "-f" "4289d83c2c9d10783b8c7de0c899a722c50ce2165a3887dc41064a9817138395"`
[INFO] [stdout] 4289d83c2c9d10783b8c7de0c899a722c50ce2165a3887dc41064a9817138395
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rahmanfadhil/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 6f8671a9e4e4f22c7549fb081659000693561c4df8f1c6f6477cd56b34d35533
[INFO] running `"docker" "start" "-a" "6f8671a9e4e4f22c7549fb081659000693561c4df8f1c6f6477cd56b34d35533"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_sandbox-416ef8c8b2cd4d2b
[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" "6f8671a9e4e4f22c7549fb081659000693561c4df8f1c6f6477cd56b34d35533"`
[INFO] running `"docker" "rm" "-f" "6f8671a9e4e4f22c7549fb081659000693561c4df8f1c6f6477cd56b34d35533"`
[INFO] [stdout] 6f8671a9e4e4f22c7549fb081659000693561c4df8f1c6f6477cd56b34d35533