[INFO] crate serde-json-helpers 0.1.2 is already in cache
[INFO] extracting crate serde-json-helpers 0.1.2 into work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/reg/serde-json-helpers/0.1.2
[INFO] extracting crate serde-json-helpers 0.1.2 into work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/reg/serde-json-helpers/0.1.2
[INFO] validating manifest of serde-json-helpers-0.1.2 on toolchain master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+548add7f61bfcbe3bea3f5ccefb53c84da8fefe4-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of serde-json-helpers-0.1.2 on toolchain try#097e26225c5cc28d3042ad4c80eac7c488f78ee7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+097e26225c5cc28d3042ad4c80eac7c488f78ee7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing serde-json-helpers-0.1.2
[INFO] finished frobbing serde-json-helpers-0.1.2
[INFO] frobbed toml for serde-json-helpers-0.1.2 written to work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/reg/serde-json-helpers/0.1.2/Cargo.toml
[INFO] started frobbing serde-json-helpers-0.1.2
[INFO] finished frobbing serde-json-helpers-0.1.2
[INFO] frobbed toml for serde-json-helpers-0.1.2 written to work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/reg/serde-json-helpers/0.1.2/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+548add7f61bfcbe3bea3f5ccefb53c84da8fefe4-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+097e26225c5cc28d3042ad4c80eac7c488f78ee7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+548add7f61bfcbe3bea3f5ccefb53c84da8fefe4-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+097e26225c5cc28d3042ad4c80eac7c488f78ee7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] checking serde-json-helpers-0.1.2 against master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4 for pr-60932
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60932/worker-0/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/reg/serde-json-helpers/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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=forbid" "-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" "+548add7f61bfcbe3bea3f5ccefb53c84da8fefe4-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 966b06e29aede2e8aedbaabc0f2bcd3754c91c7236c797a87742919c87691073
[INFO] running `"docker" "start" "-a" "966b06e29aede2e8aedbaabc0f2bcd3754c91c7236c797a87742919c87691073"`
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]    Compiling serde v1.0.91
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking serde-json-helpers v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.79s
[INFO] running `"docker" "inspect" "966b06e29aede2e8aedbaabc0f2bcd3754c91c7236c797a87742919c87691073"`
[INFO] running `"docker" "rm" "-f" "966b06e29aede2e8aedbaabc0f2bcd3754c91c7236c797a87742919c87691073"`
[INFO] [stdout] 966b06e29aede2e8aedbaabc0f2bcd3754c91c7236c797a87742919c87691073