[INFO] crate mkserial 0.0.0 is already in cache
[INFO] extracting crate mkserial 0.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/mkserial/0.0.0
[INFO] extracting crate mkserial 0.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mkserial/0.0.0
[INFO] validating manifest of mkserial-0.0.0 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 mkserial-0.0.0 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 mkserial-0.0.0
[INFO] finished frobbing mkserial-0.0.0
[INFO] frobbed toml for mkserial-0.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/mkserial/0.0.0/Cargo.toml
[INFO] started frobbing mkserial-0.0.0
[INFO] finished frobbing mkserial-0.0.0
[INFO] frobbed toml for mkserial-0.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mkserial/0.0.0/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing mkserial-0.0.0 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/mkserial/0.0.0:/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] 83d7b4d068b502ef8ee5620968e1f80b3965ca72591d4da9fe71b76c16847083
[INFO] running `"docker" "start" "-a" "83d7b4d068b502ef8ee5620968e1f80b3965ca72591d4da9fe71b76c16847083"`
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling mkserial v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.25s
[INFO] running `"docker" "inspect" "83d7b4d068b502ef8ee5620968e1f80b3965ca72591d4da9fe71b76c16847083"`
[INFO] running `"docker" "rm" "-f" "83d7b4d068b502ef8ee5620968e1f80b3965ca72591d4da9fe71b76c16847083"`
[INFO] [stdout] 83d7b4d068b502ef8ee5620968e1f80b3965ca72591d4da9fe71b76c16847083
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/mkserial/0.0.0:/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] d8df2fd6cb33dc8e4e9829dba38a5fa4ae16b97c2987958300a82a0059190fed
[INFO] running `"docker" "start" "-a" "d8df2fd6cb33dc8e4e9829dba38a5fa4ae16b97c2987958300a82a0059190fed"`
[INFO] [stderr]    Compiling mkserial v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "d8df2fd6cb33dc8e4e9829dba38a5fa4ae16b97c2987958300a82a0059190fed"`
[INFO] running `"docker" "rm" "-f" "d8df2fd6cb33dc8e4e9829dba38a5fa4ae16b97c2987958300a82a0059190fed"`
[INFO] [stdout] d8df2fd6cb33dc8e4e9829dba38a5fa4ae16b97c2987958300a82a0059190fed
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/mkserial/0.0.0:/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] 50fd11f0340ac939f7ca471953933002ade6e22f2c16afd93292efc4c91753e1
[INFO] running `"docker" "start" "-a" "50fd11f0340ac939f7ca471953933002ade6e22f2c16afd93292efc4c91753e1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mkserial-2df1a81546ec9528
[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" "50fd11f0340ac939f7ca471953933002ade6e22f2c16afd93292efc4c91753e1"`
[INFO] running `"docker" "rm" "-f" "50fd11f0340ac939f7ca471953933002ade6e22f2c16afd93292efc4c91753e1"`
[INFO] [stdout] 50fd11f0340ac939f7ca471953933002ade6e22f2c16afd93292efc4c91753e1