[INFO] updating cached repository https://github.com/willcrichton/rustc-embed
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 344e5f13ebb155c1eb859169c94a01d398b6dc4e
[INFO] testing willcrichton/rustc-embed against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillcrichton%2Frustc-embed" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/willcrichton/rustc-embed on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/willcrichton/rustc-embed
[INFO] finished tweaking git repo https://github.com/willcrichton/rustc-embed
[INFO] tweaked toml for git repo https://github.com/willcrichton/rustc-embed written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/willcrichton/rustc-embed already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] ea15e3330ea4f94516214b27422f2f0b3644f6884df82d3ea434332a56762415
[INFO] running `"docker" "start" "-a" "ea15e3330ea4f94516214b27422f2f0b3644f6884df82d3ea434332a56762415"`
[INFO] [stderr]    Compiling rustc-embed v0.1.0 (/opt/rustwide/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" "ea15e3330ea4f94516214b27422f2f0b3644f6884df82d3ea434332a56762415"`
[INFO] running `"docker" "rm" "-f" "ea15e3330ea4f94516214b27422f2f0b3644f6884df82d3ea434332a56762415"`
[INFO] [stdout] ea15e3330ea4f94516214b27422f2f0b3644f6884df82d3ea434332a56762415