[INFO] updating cached repository ismo-js/debris
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ismo-js/debris
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ismo-js/debris" "work/ex/beta-1.38-1/sources/1.37.0/gh/ismo-js/debris"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ismo-js/debris'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ismo-js/debris" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ismo-js/debris"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ismo-js/debris'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0dad9598d82a19436829d549ce68c676c71a0685
[INFO] sha for GitHub repo ismo-js/debris: 0dad9598d82a19436829d549ce68c676c71a0685
[INFO] validating manifest of ismo-js/debris 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 ismo-js/debris 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 ismo-js/debris
[INFO] finished frobbing ismo-js/debris
[INFO] frobbed toml for ismo-js/debris written to work/ex/beta-1.38-1/sources/1.37.0/gh/ismo-js/debris/Cargo.toml
[INFO] started frobbing ismo-js/debris
[INFO] finished frobbing ismo-js/debris
[INFO] frobbed toml for ismo-js/debris written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ismo-js/debris/Cargo.toml
[INFO] crate ismo-js/debris 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] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ismo-js/debris/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 ismo-js/debris against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ismo-js/debris:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 848df0d092cf4675621027431dc6956bd097590d2b73ce54c8853194213c8ef7
[INFO] running `"docker" "start" "-a" "848df0d092cf4675621027431dc6956bd097590d2b73ce54c8853194213c8ef7"`
[INFO] [stderr]    Compiling thread-scoped v1.0.2
[INFO] [stderr]    Compiling fuse v0.3.1
[INFO] [stderr]    Compiling neon v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: expected one of `.`, `?`, `{`, or an operator, found `}`
[INFO] [stderr]   --> src/main.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let mountpoint = match env::args()
[INFO] [stderr]    |                      -----            - expected one of `.`, `?`, `{`, or an operator here
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      while parsing this match expression
[INFO] [stderr] 14 | }
[INFO] [stderr]    | ^ unexpected token
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `neon`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "848df0d092cf4675621027431dc6956bd097590d2b73ce54c8853194213c8ef7"`
[INFO] running `"docker" "rm" "-f" "848df0d092cf4675621027431dc6956bd097590d2b73ce54c8853194213c8ef7"`
[INFO] [stdout] 848df0d092cf4675621027431dc6956bd097590d2b73ce54c8853194213c8ef7