[INFO] crate rwutil 2.0.0 is already in cache
[INFO] extracting crate rwutil 2.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/rwutil/2.0.0
[INFO] extracting crate rwutil 2.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rwutil/2.0.0
[INFO] validating manifest of rwutil-2.0.0 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 rwutil-2.0.0 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 rwutil-2.0.0
[INFO] finished frobbing rwutil-2.0.0
[INFO] frobbed toml for rwutil-2.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rwutil/2.0.0/Cargo.toml
[INFO] started frobbing rwutil-2.0.0
[INFO] finished frobbing rwutil-2.0.0
[INFO] frobbed toml for rwutil-2.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rwutil/2.0.0/Cargo.toml
[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 rwutil-2.0.0 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/reg/rwutil/2.0.0:/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] 65685aa2219b52545d98087e4fbdcd009ece707948d6e844687e96fa1ac77089
[INFO] running `"docker" "start" "-a" "65685aa2219b52545d98087e4fbdcd009ece707948d6e844687e96fa1ac77089"`
[INFO] [stderr]    Compiling rwutil v2.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `"docker" "inspect" "65685aa2219b52545d98087e4fbdcd009ece707948d6e844687e96fa1ac77089"`
[INFO] running `"docker" "rm" "-f" "65685aa2219b52545d98087e4fbdcd009ece707948d6e844687e96fa1ac77089"`
[INFO] [stdout] 65685aa2219b52545d98087e4fbdcd009ece707948d6e844687e96fa1ac77089
[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/reg/rwutil/2.0.0:/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] b01fcad6446198fa63b250f204ee2f26650b35b89a4d510444531580975c5094
[INFO] running `"docker" "start" "-a" "b01fcad6446198fa63b250f204ee2f26650b35b89a4d510444531580975c5094"`
[INFO] [stderr]    Compiling rwutil v2.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `"docker" "inspect" "b01fcad6446198fa63b250f204ee2f26650b35b89a4d510444531580975c5094"`
[INFO] running `"docker" "rm" "-f" "b01fcad6446198fa63b250f204ee2f26650b35b89a4d510444531580975c5094"`
[INFO] [stdout] b01fcad6446198fa63b250f204ee2f26650b35b89a4d510444531580975c5094
[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/reg/rwutil/2.0.0:/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] 8fea7c3a0abbb6442abb283aaa5dee48254493ad92cbf90e0fc5a55cb6a86dd2
[INFO] running `"docker" "start" "-a" "8fea7c3a0abbb6442abb283aaa5dee48254493ad92cbf90e0fc5a55cb6a86dd2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rwutil-230120f493f186aa
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test length_prefixed::test::test_u8_prefixed_write ... ok
[INFO] [stdout] test length_prefixed::test::test_u64_prefixed_write_le ... ok
[INFO] [stdout] test length_prefixed::test::test_u64_prefixed_write_be ... ok
[INFO] [stdout] test length_prefixed::test::test_u32_prefixed_write_le ... ok
[INFO] [stderr]    Doc-tests rwutil
[INFO] [stdout] test length_prefixed::test::test_u16_prefixed_write_le ... ok
[INFO] [stdout] test length_prefixed::test::test_u32_prefixed_write_be ... ok
[INFO] [stdout] test length_prefixed::test::test_u16_prefixed_write_be ... ok
[INFO] [stdout] test bytes0::test::test_bytes0 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/bytes0.rs - bytes0 (line 5) ... 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" "8fea7c3a0abbb6442abb283aaa5dee48254493ad92cbf90e0fc5a55cb6a86dd2"`
[INFO] running `"docker" "rm" "-f" "8fea7c3a0abbb6442abb283aaa5dee48254493ad92cbf90e0fc5a55cb6a86dd2"`
[INFO] [stdout] 8fea7c3a0abbb6442abb283aaa5dee48254493ad92cbf90e0fc5a55cb6a86dd2