[INFO] crate isolate 0.1.2 is already in cache
[INFO] extracting crate isolate 0.1.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/isolate/0.1.2
[INFO] extracting crate isolate 0.1.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/isolate/0.1.2
[INFO] validating manifest of isolate-0.1.2 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 isolate-0.1.2 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 isolate-0.1.2
[INFO] finished frobbing isolate-0.1.2
[INFO] frobbed toml for isolate-0.1.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/isolate/0.1.2/Cargo.toml
[INFO] started frobbing isolate-0.1.2
[INFO] finished frobbing isolate-0.1.2
[INFO] frobbed toml for isolate-0.1.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/isolate/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 isolate-0.1.2 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/isolate/0.1.2:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 4b551c5747c76a9bed2cd14ef77a816970c5c3757607c7ed83ad9aa7cb4cda69
[INFO] running `"docker" "start" "-a" "4b551c5747c76a9bed2cd14ef77a816970c5c3757607c7ed83ad9aa7cb4cda69"`
[INFO] [stderr]    Compiling unshare v0.2.0
[INFO] [stderr]    Compiling isolate v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `config`
[INFO] [stderr]    --> src/main.rs:144:5
[INFO] [stderr]     |
[INFO] [stderr] 144 |     config: Configuration,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.05s
[INFO] running `"docker" "inspect" "4b551c5747c76a9bed2cd14ef77a816970c5c3757607c7ed83ad9aa7cb4cda69"`
[INFO] running `"docker" "rm" "-f" "4b551c5747c76a9bed2cd14ef77a816970c5c3757607c7ed83ad9aa7cb4cda69"`
[INFO] [stdout] 4b551c5747c76a9bed2cd14ef77a816970c5c3757607c7ed83ad9aa7cb4cda69
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/isolate/0.1.2:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] f046f0068feccfc81d147474bdfa5232b71c865e457df9be1d38015548058d10
[INFO] running `"docker" "start" "-a" "f046f0068feccfc81d147474bdfa5232b71c865e457df9be1d38015548058d10"`
[INFO] [stderr]    Compiling isolate v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `config`
[INFO] [stderr]    --> src/main.rs:144:5
[INFO] [stderr]     |
[INFO] [stderr] 144 |     config: Configuration,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `"docker" "inspect" "f046f0068feccfc81d147474bdfa5232b71c865e457df9be1d38015548058d10"`
[INFO] running `"docker" "rm" "-f" "f046f0068feccfc81d147474bdfa5232b71c865e457df9be1d38015548058d10"`
[INFO] [stdout] f046f0068feccfc81d147474bdfa5232b71c865e457df9be1d38015548058d10
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/isolate/0.1.2:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] c6ad47015b58059681b922cdc150464ad09c741cf849656a171c779c23160256
[INFO] running `"docker" "start" "-a" "c6ad47015b58059681b922cdc150464ad09c741cf849656a171c779c23160256"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/isolate-bfb435248d963c18
[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" "c6ad47015b58059681b922cdc150464ad09c741cf849656a171c779c23160256"`
[INFO] running `"docker" "rm" "-f" "c6ad47015b58059681b922cdc150464ad09c741cf849656a171c779c23160256"`
[INFO] [stdout] c6ad47015b58059681b922cdc150464ad09c741cf849656a171c779c23160256