[INFO] updating cached repository 4lex1v/linked_list_in_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/4lex1v/linked_list_in_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/4lex1v/linked_list_in_rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/4lex1v/linked_list_in_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/4lex1v/linked_list_in_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/4lex1v/linked_list_in_rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/4lex1v/linked_list_in_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/4lex1v/linked_list_in_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d2e55d911ee6accf67064a5b3170f25596727510
[INFO] sha for GitHub repo 4lex1v/linked_list_in_rust: d2e55d911ee6accf67064a5b3170f25596727510
[INFO] validating manifest of 4lex1v/linked_list_in_rust on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of 4lex1v/linked_list_in_rust on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing 4lex1v/linked_list_in_rust
[INFO] finished frobbing 4lex1v/linked_list_in_rust
[INFO] frobbed toml for 4lex1v/linked_list_in_rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/4lex1v/linked_list_in_rust/Cargo.toml
[INFO] started frobbing 4lex1v/linked_list_in_rust
[INFO] finished frobbing 4lex1v/linked_list_in_rust
[INFO] frobbed toml for 4lex1v/linked_list_in_rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/4lex1v/linked_list_in_rust/Cargo.toml
[INFO] crate 4lex1v/linked_list_in_rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing 4lex1v/linked_list_in_rust against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/4lex1v/linked_list_in_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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] d4e49a1dd64c33cf496cfdeb7cf7da02b4f9f743debeb8524854242636367b4a
[INFO] running `"docker" "start" "-a" "d4e49a1dd64c33cf496cfdeb7cf7da02b4f9f743debeb8524854242636367b4a"`
[INFO] [stderr]    Compiling rusty_lists v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "d4e49a1dd64c33cf496cfdeb7cf7da02b4f9f743debeb8524854242636367b4a"`
[INFO] running `"docker" "rm" "-f" "d4e49a1dd64c33cf496cfdeb7cf7da02b4f9f743debeb8524854242636367b4a"`
[INFO] [stdout] d4e49a1dd64c33cf496cfdeb7cf7da02b4f9f743debeb8524854242636367b4a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/4lex1v/linked_list_in_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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 32c2fe88238f2d158fb964c3f5c65bc5052b69d14921f0bb01555899c5cfeabc
[INFO] running `"docker" "start" "-a" "32c2fe88238f2d158fb964c3f5c65bc5052b69d14921f0bb01555899c5cfeabc"`
[INFO] [stderr]    Compiling rusty_lists v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "32c2fe88238f2d158fb964c3f5c65bc5052b69d14921f0bb01555899c5cfeabc"`
[INFO] running `"docker" "rm" "-f" "32c2fe88238f2d158fb964c3f5c65bc5052b69d14921f0bb01555899c5cfeabc"`
[INFO] [stdout] 32c2fe88238f2d158fb964c3f5c65bc5052b69d14921f0bb01555899c5cfeabc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/4lex1v/linked_list_in_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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] a355a80ed845ed71aa495fd7cf30b9efd25a2e6ee99a5a4ff9fc0246f5e9fb0a
[INFO] running `"docker" "start" "-a" "a355a80ed845ed71aa495fd7cf30b9efd25a2e6ee99a5a4ff9fc0246f5e9fb0a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rusty_lists-d7b301df64025fe2
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test first::test::basics ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a355a80ed845ed71aa495fd7cf30b9efd25a2e6ee99a5a4ff9fc0246f5e9fb0a"`
[INFO] running `"docker" "rm" "-f" "a355a80ed845ed71aa495fd7cf30b9efd25a2e6ee99a5a4ff9fc0246f5e9fb0a"`
[INFO] [stdout] a355a80ed845ed71aa495fd7cf30b9efd25a2e6ee99a5a4ff9fc0246f5e9fb0a