[INFO] updating cached repository https://github.com/nrc/stupid-stats
[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] 692c005fb765b99aaf6bb66850f03665952920e0
[INFO] testing nrc/stupid-stats against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrc%2Fstupid-stats" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nrc/stupid-stats on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/nrc/stupid-stats
[INFO] finished tweaking git repo https://github.com/nrc/stupid-stats
[INFO] tweaked toml for git repo https://github.com/nrc/stupid-stats written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/nrc/stupid-stats already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 3fe28cbeecfd6ca12f726a6b30fa5aad6915cfe2c62311745fee92cca148232e
[INFO] running `"docker" "start" "-a" "3fe28cbeecfd6ca12f726a6b30fa5aad6915cfe2c62311745fee92cca148232e"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling stupid-stats v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved imports `rustc_driver::driver`, `rustc_driver::CompilerCalls`
[INFO] [stderr]   --> src/mod.rs:23:20
[INFO] [stderr]    |
[INFO] [stderr] 23 | use rustc_driver::{driver, Compilation, CompilerCalls, RustcDefaultCalls};
[INFO] [stderr]    |                    ^^^^^^               ^^^^^^^^^^^^^ no `CompilerCalls` in the root
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    no `driver` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `run` in crate `rustc_driver`
[INFO] [stderr]    --> src/mod.rs:234:19
[INFO] [stderr]     |
[INFO] [stderr] 234 |     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] 20  | use syntax::show_span::run;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/mod.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | #![feature(box_syntax)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> src/mod.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | #![feature(extern_crate_item_prelude)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> src/mod.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | #![feature(rustc_private)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mod.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |         t: &CodegenBackend,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: use `dyn`: `dyn CodegenBackend`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 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 `stupid-stats`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3fe28cbeecfd6ca12f726a6b30fa5aad6915cfe2c62311745fee92cca148232e"`
[INFO] running `"docker" "rm" "-f" "3fe28cbeecfd6ca12f726a6b30fa5aad6915cfe2c62311745fee92cca148232e"`
[INFO] [stdout] 3fe28cbeecfd6ca12f726a6b30fa5aad6915cfe2c62311745fee92cca148232e