[INFO] updating cached repository briprowe/edn2csv
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/briprowe/edn2csv
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/briprowe/edn2csv" "work/ex/beta-1.37-6/sources/1.36.0/gh/briprowe/edn2csv"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/briprowe/edn2csv'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/briprowe/edn2csv" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/briprowe/edn2csv"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/briprowe/edn2csv'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 54b404564f992b54a8c560d4dff1aba186ea1416
[INFO] sha for GitHub repo briprowe/edn2csv: 54b404564f992b54a8c560d4dff1aba186ea1416
[INFO] validating manifest of briprowe/edn2csv 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 briprowe/edn2csv 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 briprowe/edn2csv
[INFO] finished frobbing briprowe/edn2csv
[INFO] frobbed toml for briprowe/edn2csv written to work/ex/beta-1.37-6/sources/1.36.0/gh/briprowe/edn2csv/Cargo.toml
[INFO] started frobbing briprowe/edn2csv
[INFO] finished frobbing briprowe/edn2csv
[INFO] frobbed toml for briprowe/edn2csv written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/briprowe/edn2csv/Cargo.toml
[INFO] crate briprowe/edn2csv already has a lockfile, it will not be regenerated
[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 briprowe/edn2csv 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/gh/briprowe/edn2csv:/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] 91b8aa55495c8c74cf7bf8777f37c3c110d3d80a61a44f5190b6508eb199e240
[INFO] running `"docker" "start" "-a" "91b8aa55495c8c74cf7bf8777f37c3c110d3d80a61a44f5190b6508eb199e240"`
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling ordered-float v0.4.0
[INFO] [stderr]    Compiling edn v0.3.0
[INFO] [stderr]    Compiling csv-core v0.1.4
[INFO] [stderr]    Compiling csv v1.0.2
[INFO] [stderr]    Compiling edn2csv v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(transpose_result)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `edn2csv`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "91b8aa55495c8c74cf7bf8777f37c3c110d3d80a61a44f5190b6508eb199e240"`
[INFO] running `"docker" "rm" "-f" "91b8aa55495c8c74cf7bf8777f37c3c110d3d80a61a44f5190b6508eb199e240"`
[INFO] [stdout] 91b8aa55495c8c74cf7bf8777f37c3c110d3d80a61a44f5190b6508eb199e240