[INFO] fetching crate serde_json 1.0.40...
[INFO] extracting crate serde_json 1.0.40 into work/ex/beta-1.37-6/sources/1.36.0/reg/serde_json/1.0.40
[INFO] extracting crate serde_json 1.0.40 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/serde_json/1.0.40
[INFO] validating manifest of serde_json-1.0.40 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 serde_json-1.0.40 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 serde_json-1.0.40
[INFO] finished frobbing serde_json-1.0.40
[INFO] frobbed toml for serde_json-1.0.40 written to work/ex/beta-1.37-6/sources/1.36.0/reg/serde_json/1.0.40/Cargo.toml
[INFO] started frobbing serde_json-1.0.40
[INFO] finished frobbing serde_json-1.0.40
[INFO] frobbed toml for serde_json-1.0.40 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/serde_json/1.0.40/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 serde_json-1.0.40 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-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/serde_json/1.0.40:/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] cb9b01a8eabe074584d23b088a0e625823e5ca19092cc6fb7e862cb883933a0f
[INFO] running `"docker" "start" "-a" "cb9b01a8eabe074584d23b088a0e625823e5ca19092cc6fb7e862cb883933a0f"`
[INFO] [stderr]    Compiling serde_json v1.0.40 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.16s
[INFO] running `"docker" "inspect" "cb9b01a8eabe074584d23b088a0e625823e5ca19092cc6fb7e862cb883933a0f"`
[INFO] running `"docker" "rm" "-f" "cb9b01a8eabe074584d23b088a0e625823e5ca19092cc6fb7e862cb883933a0f"`
[INFO] [stdout] cb9b01a8eabe074584d23b088a0e625823e5ca19092cc6fb7e862cb883933a0f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/serde_json/1.0.40:/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] 6174b8b1161d3c9166e237ac8395a8fa4ce364a9e23f1304db23874f0968463e
[INFO] running `"docker" "start" "-a" "6174b8b1161d3c9166e237ac8395a8fa4ce364a9e23f1304db23874f0968463e"`
[INFO] [stderr]    Compiling stacker v0.1.5
[INFO] [stderr]    Compiling automod v0.1.1
[INFO] [stderr]    Compiling select-rustc v0.1.2
[INFO] [stderr]    Compiling toml v0.5.1
[INFO] [stderr]    Compiling serde_bytes v0.11.1
[INFO] [stderr]    Compiling serde_stacker v0.1.0
[INFO] [stderr]    Compiling trybuild v1.0.10
[INFO] [stderr]    Compiling serde_json v1.0.40 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.17s
[INFO] running `"docker" "inspect" "6174b8b1161d3c9166e237ac8395a8fa4ce364a9e23f1304db23874f0968463e"`
[INFO] running `"docker" "rm" "-f" "6174b8b1161d3c9166e237ac8395a8fa4ce364a9e23f1304db23874f0968463e"`
[INFO] [stdout] 6174b8b1161d3c9166e237ac8395a8fa4ce364a9e23f1304db23874f0968463e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/serde_json/1.0.40:/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] 76bb148221b7d681c443a4e81e2f6c16db9e944511ade95ae3a2e908c62f54ae
[INFO] running `"docker" "start" "-a" "76bb148221b7d681c443a4e81e2f6c16db9e944511ade95ae3a2e908c62f54ae"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/serde_json-15b4251c62626579
[INFO] [stderr]    Doc-tests serde_json
[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] [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" "76bb148221b7d681c443a4e81e2f6c16db9e944511ade95ae3a2e908c62f54ae"`
[INFO] running `"docker" "rm" "-f" "76bb148221b7d681c443a4e81e2f6c16db9e944511ade95ae3a2e908c62f54ae"`
[INFO] [stdout] 76bb148221b7d681c443a4e81e2f6c16db9e944511ade95ae3a2e908c62f54ae