[INFO] updating cached repository Gipphe/reverse-polish
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Gipphe/reverse-polish
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Gipphe/reverse-polish" "work/ex/beta-1.38-1/sources/1.37.0/gh/Gipphe/reverse-polish"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Gipphe/reverse-polish'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Gipphe/reverse-polish" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Gipphe/reverse-polish"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Gipphe/reverse-polish'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b72fa61082fb2548c275d2d19f306b9f91a62795
[INFO] sha for GitHub repo Gipphe/reverse-polish: b72fa61082fb2548c275d2d19f306b9f91a62795
[INFO] validating manifest of Gipphe/reverse-polish 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 Gipphe/reverse-polish 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 Gipphe/reverse-polish
[INFO] finished frobbing Gipphe/reverse-polish
[INFO] frobbed toml for Gipphe/reverse-polish written to work/ex/beta-1.38-1/sources/1.37.0/gh/Gipphe/reverse-polish/Cargo.toml
[INFO] started frobbing Gipphe/reverse-polish
[INFO] finished frobbing Gipphe/reverse-polish
[INFO] frobbed toml for Gipphe/reverse-polish written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Gipphe/reverse-polish/Cargo.toml
[INFO] crate Gipphe/reverse-polish 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 Gipphe/reverse-polish against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Gipphe/reverse-polish:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 6eaa47967e37d9b8436af888a8e1bb4196d1923c9ff643c2e9bae20b742995ab
[INFO] running `"docker" "start" "-a" "6eaa47967e37d9b8436af888a8e1bb4196d1923c9ff643c2e9bae20b742995ab"`
[INFO] [stderr]    Compiling reverse-polish v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: expected identifier, found `<eof>`
[INFO] [stderr]  --> src/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | macro_rules! 
[INFO] [stderr]   |            ^ expected identifier
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `reverse-polish`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6eaa47967e37d9b8436af888a8e1bb4196d1923c9ff643c2e9bae20b742995ab"`
[INFO] running `"docker" "rm" "-f" "6eaa47967e37d9b8436af888a8e1bb4196d1923c9ff643c2e9bae20b742995ab"`
[INFO] [stdout] 6eaa47967e37d9b8436af888a8e1bb4196d1923c9ff643c2e9bae20b742995ab