[INFO] updating cached repository thorntonmc/lson [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/thorntonmc/lson [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/thorntonmc/lson" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/thorntonmc/lson"` [INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/thorntonmc/lson'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/thorntonmc/lson" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/thorntonmc/lson"` [INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/thorntonmc/lson'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 726776dd3098c01589643f0be46e101fda0b022f [INFO] sha for GitHub repo thorntonmc/lson: 726776dd3098c01589643f0be46e101fda0b022f [INFO] validating manifest of thorntonmc/lson 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 thorntonmc/lson 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 thorntonmc/lson [INFO] finished frobbing thorntonmc/lson [INFO] frobbed toml for thorntonmc/lson written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/thorntonmc/lson/Cargo.toml [INFO] started frobbing thorntonmc/lson [INFO] finished frobbing thorntonmc/lson [INFO] frobbed toml for thorntonmc/lson written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/thorntonmc/lson/Cargo.toml [INFO] crate thorntonmc/lson already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking thorntonmc/lson against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-6/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/thorntonmc/lson:/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] f2dcd79fcde728ab68c562c288f9826e115a93c60f0e2dc4adf9204513915aec [INFO] running `"docker" "start" "-a" "f2dcd79fcde728ab68c562c288f9826e115a93c60f0e2dc4adf9204513915aec"` [INFO] [stderr] Compiling syn v0.15.38 [INFO] [stderr] Compiling serde_derive v1.0.94 [INFO] [stderr] Compiling structopt-derive v0.2.16 [INFO] [stderr] Checking structopt v0.2.16 [INFO] [stderr] Checking serde v1.0.94 [INFO] [stderr] Checking serde_json v1.0.40 [INFO] [stderr] Checking lson v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: field is never used: `contents` [INFO] [stderr] --> src/main.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | contents: Option>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `contents` [INFO] [stderr] --> src/main.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | contents: Option>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 47.61s [INFO] running `"docker" "inspect" "f2dcd79fcde728ab68c562c288f9826e115a93c60f0e2dc4adf9204513915aec"` [INFO] running `"docker" "rm" "-f" "f2dcd79fcde728ab68c562c288f9826e115a93c60f0e2dc4adf9204513915aec"` [INFO] [stdout] f2dcd79fcde728ab68c562c288f9826e115a93c60f0e2dc4adf9204513915aec