[INFO] fetching crate javascriptcore-rs 0.8.0...
[INFO] extracting crate javascriptcore-rs 0.8.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/javascriptcore-rs/0.8.0
[INFO] extracting crate javascriptcore-rs 0.8.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/javascriptcore-rs/0.8.0
[INFO] validating manifest of javascriptcore-rs-0.8.0 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 javascriptcore-rs-0.8.0 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 javascriptcore-rs-0.8.0
[INFO] finished frobbing javascriptcore-rs-0.8.0
[INFO] frobbed toml for javascriptcore-rs-0.8.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/javascriptcore-rs/0.8.0/Cargo.toml
[INFO] started frobbing javascriptcore-rs-0.8.0
[INFO] finished frobbing javascriptcore-rs-0.8.0
[INFO] frobbed toml for javascriptcore-rs-0.8.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/javascriptcore-rs/0.8.0/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 javascriptcore-rs-0.8.0 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/reg/javascriptcore-rs/0.8.0:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] dc695f528a7e55e1bfeacf5f569180f661c58c59612e2f4c2673a30112f092c2
[INFO] running `"docker" "start" "-a" "dc695f528a7e55e1bfeacf5f569180f661c58c59612e2f4c2673a30112f092c2"`
[INFO] [stderr]    Compiling glib-sys v0.9.0
[INFO] [stderr]    Compiling gobject-sys v0.9.0
[INFO] [stderr]    Compiling javascriptcore-rs-sys v0.2.0
[INFO] [stderr]    Compiling glib v0.8.1
[INFO] [stderr]    Compiling javascriptcore-rs v0.8.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `raw`
[INFO] [stderr]   --> src/lib.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     raw: JSCValue,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.75s
[INFO] running `"docker" "inspect" "dc695f528a7e55e1bfeacf5f569180f661c58c59612e2f4c2673a30112f092c2"`
[INFO] running `"docker" "rm" "-f" "dc695f528a7e55e1bfeacf5f569180f661c58c59612e2f4c2673a30112f092c2"`
[INFO] [stdout] dc695f528a7e55e1bfeacf5f569180f661c58c59612e2f4c2673a30112f092c2
[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/reg/javascriptcore-rs/0.8.0:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9a0bed54e40b03078f3501ccbcb57e9cbf7aecb73fdef89e8848ad47e7774431
[INFO] running `"docker" "start" "-a" "9a0bed54e40b03078f3501ccbcb57e9cbf7aecb73fdef89e8848ad47e7774431"`
[INFO] [stderr]    Compiling javascriptcore-rs v0.8.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `raw`
[INFO] [stderr]   --> src/lib.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     raw: JSCValue,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "9a0bed54e40b03078f3501ccbcb57e9cbf7aecb73fdef89e8848ad47e7774431"`
[INFO] running `"docker" "rm" "-f" "9a0bed54e40b03078f3501ccbcb57e9cbf7aecb73fdef89e8848ad47e7774431"`
[INFO] [stdout] 9a0bed54e40b03078f3501ccbcb57e9cbf7aecb73fdef89e8848ad47e7774431
[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/reg/javascriptcore-rs/0.8.0:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 7e825a483dbda4b27154203331ab2709c73103f3b35b591de3074acd70dd166e
[INFO] running `"docker" "start" "-a" "7e825a483dbda4b27154203331ab2709c73103f3b35b591de3074acd70dd166e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/javascriptcore-cfd46d8e9fd1cc5e
[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] [stderr]    Doc-tests javascriptcore
[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" "7e825a483dbda4b27154203331ab2709c73103f3b35b591de3074acd70dd166e"`
[INFO] running `"docker" "rm" "-f" "7e825a483dbda4b27154203331ab2709c73103f3b35b591de3074acd70dd166e"`
[INFO] [stdout] 7e825a483dbda4b27154203331ab2709c73103f3b35b591de3074acd70dd166e