[INFO] updating cached repository Laastine/ring-buffer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Laastine/ring-buffer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Laastine/ring-buffer" "work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/Laastine/ring-buffer"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/Laastine/ring-buffer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Laastine/ring-buffer" "work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/Laastine/ring-buffer"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/Laastine/ring-buffer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5ae2db0e0754f2cf4ff5e9972a9a0fe1bf6a81e4
[INFO] sha for GitHub repo Laastine/ring-buffer: 5ae2db0e0754f2cf4ff5e9972a9a0fe1bf6a81e4
[INFO] validating manifest of Laastine/ring-buffer on toolchain master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Laastine/ring-buffer on toolchain try#29640c57b5f92febba0e40c50cb863c9a7ede51d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Laastine/ring-buffer
[INFO] finished frobbing Laastine/ring-buffer
[INFO] frobbed toml for Laastine/ring-buffer written to work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/Laastine/ring-buffer/Cargo.toml
[INFO] started frobbing Laastine/ring-buffer
[INFO] finished frobbing Laastine/ring-buffer
[INFO] frobbed toml for Laastine/ring-buffer written to work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/Laastine/ring-buffer/Cargo.toml
[INFO] crate Laastine/ring-buffer has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Laastine/ring-buffer against try#29640c57b5f92febba0e40c50cb863c9a7ede51d for pr-57745
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57745/worker-3/try#29640c57b5f92febba0e40c50cb863c9a7ede51d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/Laastine/ring-buffer:/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=forbid" "-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" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0117e1beefafd196b5d3f947f6303ee4e43e0e8bc2cbbb66f7d83f70f3d84f8e
[INFO] running `"docker" "start" "-a" "0117e1beefafd196b5d3f947f6303ee4e43e0e8bc2cbbb66f7d83f70f3d84f8e"`
[INFO] [stderr]     Checking memrange v0.1.3
[INFO] [stderr]     Checking theban_interval_tree v0.7.1
[INFO] [stderr]     Checking shared_memory v0.8.1
[INFO] [stderr] error[E0659]: `nix` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/shared_memory-0.8.1/src/lib.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |         use nix as os_impl;
[INFO] [stderr]    |             ^^^ ambiguous name
[INFO] [stderr]    |
[INFO] [stderr]    = note: `nix` could refer to an extern crate passed with `--extern`
[INFO] [stderr] note: `nix` could also refer to the module defined here
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/shared_memory-0.8.1/src/lib.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         mod nix;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = help: use `crate::nix` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0659`.
[INFO] [stderr] error: Could not compile `shared_memory`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "0117e1beefafd196b5d3f947f6303ee4e43e0e8bc2cbbb66f7d83f70f3d84f8e"`
[INFO] running `"docker" "rm" "-f" "0117e1beefafd196b5d3f947f6303ee4e43e0e8bc2cbbb66f7d83f70f3d84f8e"`
[INFO] [stdout] 0117e1beefafd196b5d3f947f6303ee4e43e0e8bc2cbbb66f7d83f70f3d84f8e