[INFO] updating cached repository willcrichton/rustc-embed
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/willcrichton/rustc-embed
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/willcrichton/rustc-embed" "work/ex/beta-1.38-1/sources/1.37.0/gh/willcrichton/rustc-embed"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/willcrichton/rustc-embed'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/willcrichton/rustc-embed" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/willcrichton/rustc-embed"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/willcrichton/rustc-embed'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 344e5f13ebb155c1eb859169c94a01d398b6dc4e
[INFO] sha for GitHub repo willcrichton/rustc-embed: 344e5f13ebb155c1eb859169c94a01d398b6dc4e
[INFO] validating manifest of willcrichton/rustc-embed 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 willcrichton/rustc-embed 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 willcrichton/rustc-embed
[INFO] finished frobbing willcrichton/rustc-embed
[INFO] frobbed toml for willcrichton/rustc-embed written to work/ex/beta-1.38-1/sources/1.37.0/gh/willcrichton/rustc-embed/Cargo.toml
[INFO] started frobbing willcrichton/rustc-embed
[INFO] finished frobbing willcrichton/rustc-embed
[INFO] frobbed toml for willcrichton/rustc-embed written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/willcrichton/rustc-embed/Cargo.toml
[INFO] crate willcrichton/rustc-embed 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 willcrichton/rustc-embed 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-3/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/willcrichton/rustc-embed:/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] 8c24eaf1849927782788db5e5eadf564a4bfbe4ffa530867e494baee0a13a5ce
[INFO] running `"docker" "start" "-a" "8c24eaf1849927782788db5e5eadf564a4bfbe4ffa530867e494baee0a13a5ce"`
[INFO] [stderr]    Compiling rustc-embed v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `syntax::codemap`
[INFO] [stderr]   --> src/main.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 | use syntax::codemap::FileLoader;
[INFO] [stderr]    |             ^^^^^^^ could not find `codemap` in `syntax`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `run` in crate `rustc_driver`
[INFO] [stderr]   --> src/main.rs:65:19
[INFO] [stderr]    |
[INFO] [stderr] 65 |     rustc_driver::run(
[INFO] [stderr]    |                   ^^^ not found in `rustc_driver`
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 8  | use syntax::show_span::run;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(rustc_private, box_syntax)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0432, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[INFO] [stderr] error: Could not compile `rustc-embed`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8c24eaf1849927782788db5e5eadf564a4bfbe4ffa530867e494baee0a13a5ce"`
[INFO] running `"docker" "rm" "-f" "8c24eaf1849927782788db5e5eadf564a4bfbe4ffa530867e494baee0a13a5ce"`
[INFO] [stdout] 8c24eaf1849927782788db5e5eadf564a4bfbe4ffa530867e494baee0a13a5ce