[INFO] updating cached repository c-o-l-o-r/serde-json-issue
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/c-o-l-o-r/serde-json-issue
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/c-o-l-o-r/serde-json-issue" "work/ex/beta-1.38-1/sources/1.37.0/gh/c-o-l-o-r/serde-json-issue"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/c-o-l-o-r/serde-json-issue'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/c-o-l-o-r/serde-json-issue" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/c-o-l-o-r/serde-json-issue"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/c-o-l-o-r/serde-json-issue'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 933d3807891c259da2a2c3508d2ce3cfadcbc95b
[INFO] sha for GitHub repo c-o-l-o-r/serde-json-issue: 933d3807891c259da2a2c3508d2ce3cfadcbc95b
[INFO] validating manifest of c-o-l-o-r/serde-json-issue 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 c-o-l-o-r/serde-json-issue 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 c-o-l-o-r/serde-json-issue
[INFO] finished frobbing c-o-l-o-r/serde-json-issue
[INFO] frobbed toml for c-o-l-o-r/serde-json-issue written to work/ex/beta-1.38-1/sources/1.37.0/gh/c-o-l-o-r/serde-json-issue/Cargo.toml
[INFO] started frobbing c-o-l-o-r/serde-json-issue
[INFO] finished frobbing c-o-l-o-r/serde-json-issue
[INFO] frobbed toml for c-o-l-o-r/serde-json-issue written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/c-o-l-o-r/serde-json-issue/Cargo.toml
[INFO] crate c-o-l-o-r/serde-json-issue already has a lockfile, it will not be regenerated
[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] testing c-o-l-o-r/serde-json-issue 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-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/c-o-l-o-r/serde-json-issue:/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] 9777e3e06bd0f26b8704e4f78a186e52fa60b6df108ac348c8566648f8f93c6b
[INFO] running `"docker" "start" "-a" "9777e3e06bd0f26b8704e4f78a186e52fa60b6df108ac348c8566648f8f93c6b"`
[INFO] [stderr]    Compiling serde-json-issue v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `"docker" "inspect" "9777e3e06bd0f26b8704e4f78a186e52fa60b6df108ac348c8566648f8f93c6b"`
[INFO] running `"docker" "rm" "-f" "9777e3e06bd0f26b8704e4f78a186e52fa60b6df108ac348c8566648f8f93c6b"`
[INFO] [stdout] 9777e3e06bd0f26b8704e4f78a186e52fa60b6df108ac348c8566648f8f93c6b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/c-o-l-o-r/serde-json-issue:/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] 22a3b896046d1bfabc0ab51fa1021a715eec3fd7d3cf0de1bc063c0fdca364b0
[INFO] running `"docker" "start" "-a" "22a3b896046d1bfabc0ab51fa1021a715eec3fd7d3cf0de1bc063c0fdca364b0"`
[INFO] [stderr]    Compiling serde-json-issue v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "22a3b896046d1bfabc0ab51fa1021a715eec3fd7d3cf0de1bc063c0fdca364b0"`
[INFO] running `"docker" "rm" "-f" "22a3b896046d1bfabc0ab51fa1021a715eec3fd7d3cf0de1bc063c0fdca364b0"`
[INFO] [stdout] 22a3b896046d1bfabc0ab51fa1021a715eec3fd7d3cf0de1bc063c0fdca364b0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/c-o-l-o-r/serde-json-issue:/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] d5f2ba68668975e5a0572f8f55ab06431f90dd9340858214e776927754c89d7e
[INFO] running `"docker" "start" "-a" "d5f2ba68668975e5a0572f8f55ab06431f90dd9340858214e776927754c89d7e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/serde_json_issue-826eb73195779274
[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" "d5f2ba68668975e5a0572f8f55ab06431f90dd9340858214e776927754c89d7e"`
[INFO] running `"docker" "rm" "-f" "d5f2ba68668975e5a0572f8f55ab06431f90dd9340858214e776927754c89d7e"`
[INFO] [stdout] d5f2ba68668975e5a0572f8f55ab06431f90dd9340858214e776927754c89d7e