[INFO] crate serde_json_v8 0.0.1 is already in cache
[INFO] extracting crate serde_json_v8 0.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/serde_json_v8/0.0.1
[INFO] extracting crate serde_json_v8 0.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/serde_json_v8/0.0.1
[INFO] validating manifest of serde_json_v8-0.0.1 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 serde_json_v8-0.0.1 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 serde_json_v8-0.0.1
[INFO] finished frobbing serde_json_v8-0.0.1
[INFO] frobbed toml for serde_json_v8-0.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/serde_json_v8/0.0.1/Cargo.toml
[INFO] started frobbing serde_json_v8-0.0.1
[INFO] finished frobbing serde_json_v8-0.0.1
[INFO] frobbed toml for serde_json_v8-0.0.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/serde_json_v8/0.0.1/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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded automod v0.1.2
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing serde_json_v8-0.0.1 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/serde_json_v8/0.0.1:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] d89c4be4f09e1989a8de4c5e607dc730be1d043f5fd0eb01da9cbcad0ddaf1e5
[INFO] running `"docker" "start" "-a" "d89c4be4f09e1989a8de4c5e607dc730be1d043f5fd0eb01da9cbcad0ddaf1e5"`
[INFO] [stderr]    Compiling serde_json_v8 v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]    --> src/lib.rs:321:1
[INFO] [stderr]     |
[INFO] [stderr] 321 | #[macro_use]
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "d89c4be4f09e1989a8de4c5e607dc730be1d043f5fd0eb01da9cbcad0ddaf1e5"`
[INFO] running `"docker" "rm" "-f" "d89c4be4f09e1989a8de4c5e607dc730be1d043f5fd0eb01da9cbcad0ddaf1e5"`
[INFO] [stdout] d89c4be4f09e1989a8de4c5e607dc730be1d043f5fd0eb01da9cbcad0ddaf1e5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/serde_json_v8/0.0.1:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 704b9297be9a4bc400ac7326d9e5d1c38b07eb2dc1cc62b580485406b36a6634
[INFO] running `"docker" "start" "-a" "704b9297be9a4bc400ac7326d9e5d1c38b07eb2dc1cc62b580485406b36a6634"`
[INFO] [stderr]    Compiling stacker v0.1.5
[INFO] [stderr]    Compiling automod v0.1.2
[INFO] [stderr]    Compiling serde_bytes v0.11.2
[INFO] [stderr]    Compiling rustfix v0.4.6
[INFO] [stderr]    Compiling serde_stacker v0.1.0
[INFO] [stderr]    Compiling compiletest_rs v0.3.22
[INFO] [stderr]    Compiling serde_json_v8 v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]    --> src/lib.rs:321:1
[INFO] [stderr]     |
[INFO] [stderr] 321 | #[macro_use]
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.89s
[INFO] running `"docker" "inspect" "704b9297be9a4bc400ac7326d9e5d1c38b07eb2dc1cc62b580485406b36a6634"`
[INFO] running `"docker" "rm" "-f" "704b9297be9a4bc400ac7326d9e5d1c38b07eb2dc1cc62b580485406b36a6634"`
[INFO] [stdout] 704b9297be9a4bc400ac7326d9e5d1c38b07eb2dc1cc62b580485406b36a6634
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/serde_json_v8/0.0.1:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] d9eccdddef01d74eb7268bf344d7321768db1257b8c44896b9119e5ed3169df5
[INFO] running `"docker" "start" "-a" "d9eccdddef01d74eb7268bf344d7321768db1257b8c44896b9119e5ed3169df5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/serde_json_v8-a11a75237a2722df
[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 serde_json_v8
[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" "d9eccdddef01d74eb7268bf344d7321768db1257b8c44896b9119e5ed3169df5"`
[INFO] running `"docker" "rm" "-f" "d9eccdddef01d74eb7268bf344d7321768db1257b8c44896b9119e5ed3169df5"`
[INFO] [stdout] d9eccdddef01d74eb7268bf344d7321768db1257b8c44896b9119e5ed3169df5