[INFO] crate cryogen_plugin_json 0.1.0 is already in cache
[INFO] extracting crate cryogen_plugin_json 0.1.0 into work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/cryogen_plugin_json/0.1.0
[INFO] extracting crate cryogen_plugin_json 0.1.0 into work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/cryogen_plugin_json/0.1.0
[INFO] validating manifest of cryogen_plugin_json-0.1.0 on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cryogen_plugin_json-0.1.0 on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cryogen_plugin_json-0.1.0
[INFO] removed path dependency cryogen_prelude from cryogen_plugin_json-0.1.0
[INFO] finished frobbing cryogen_plugin_json-0.1.0
[INFO] frobbed toml for cryogen_plugin_json-0.1.0 written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/cryogen_plugin_json/0.1.0/Cargo.toml
[INFO] started frobbing cryogen_plugin_json-0.1.0
[INFO] removed path dependency cryogen_prelude from cryogen_plugin_json-0.1.0
[INFO] finished frobbing cryogen_plugin_json-0.1.0
[INFO] frobbed toml for cryogen_plugin_json-0.1.0 written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/cryogen_plugin_json/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking cryogen_plugin_json-0.1.0 against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-2/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/cryogen_plugin_json/0.1.0:/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=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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c288745e69dccbe45109386238264466b4f21ba1e0a71811edc246cb2f8e3b61
[INFO] running `"docker" "start" "-a" "c288745e69dccbe45109386238264466b4f21ba1e0a71811edc246cb2f8e3b61"`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Checking pest v0.4.1
[INFO] [stderr]     Checking clap v2.20.5
[INFO] [stderr]     Checking tera v0.8.1
[INFO] [stderr]     Checking cryogen_prelude v0.1.0
[INFO] [stderr]     Checking cryogen_plugin_json v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.12s
[INFO] running `"docker" "inspect" "c288745e69dccbe45109386238264466b4f21ba1e0a71811edc246cb2f8e3b61"`
[INFO] running `"docker" "rm" "-f" "c288745e69dccbe45109386238264466b4f21ba1e0a71811edc246cb2f8e3b61"`
[INFO] [stdout] c288745e69dccbe45109386238264466b4f21ba1e0a71811edc246cb2f8e3b61