[INFO] updating cached repository psFried/roman-numerals-rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/psFried/roman-numerals-rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/psFried/roman-numerals-rust" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/psFried/roman-numerals-rust"` [INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/psFried/roman-numerals-rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/psFried/roman-numerals-rust" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/psFried/roman-numerals-rust"` [INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/psFried/roman-numerals-rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] a5eb19ba0468ee970bf2118998631a74df84ab43 [INFO] sha for GitHub repo psFried/roman-numerals-rust: a5eb19ba0468ee970bf2118998631a74df84ab43 [INFO] validating manifest of psFried/roman-numerals-rust on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of psFried/roman-numerals-rust on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing psFried/roman-numerals-rust [INFO] finished frobbing psFried/roman-numerals-rust [INFO] frobbed toml for psFried/roman-numerals-rust written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/psFried/roman-numerals-rust/Cargo.toml [INFO] started frobbing psFried/roman-numerals-rust [INFO] finished frobbing psFried/roman-numerals-rust [INFO] frobbed toml for psFried/roman-numerals-rust written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/psFried/roman-numerals-rust/Cargo.toml [INFO] crate psFried/roman-numerals-rust already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] checking psFried/roman-numerals-rust against master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-1/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/psFried/roman-numerals-rust:/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" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 41a85a94368fb6513ddc4a9e2f80bb4bfc672da400303b2884ef44f42b0537b7 [INFO] running `"docker" "start" "-a" "41a85a94368fb6513ddc4a9e2f80bb4bfc672da400303b2884ef44f42b0537b7"` [INFO] [stderr] Checking roman v0.0.1 (/opt/crater/workdir) [INFO] [stderr] error[E0425]: cannot find function `set_exit_status` in module `std::env` [INFO] [stderr] --> src/main.rs:27:15 [INFO] [stderr] | [INFO] [stderr] 27 | std::env::set_exit_status(1); [INFO] [stderr] | ^^^^^^^^^^^^^^^ not found in `std::env` [INFO] [stderr] [INFO] [stderr] error[E0658]: use of unstable library feature 'slice_concat_ext': trait should not have to exist [INFO] [stderr] --> src/main.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::slice::SliceConcatExt; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: for more information, see https://github.com/rust-lang/rust/issues/27747 [INFO] [stderr] = help: add #![feature(slice_concat_ext)] to the crate attributes to enable [INFO] [stderr] [INFO] [stderr] error[E0425]: cannot find function `set_exit_status` in module `std::env` [INFO] [stderr] --> src/main.rs:27:15 [INFO] [stderr] | [INFO] [stderr] 27 | std::env::set_exit_status(1); [INFO] [stderr] | ^^^^^^^^^^^^^^^ not found in `std::env` [INFO] [stderr] [INFO] [stderr] error[E0658]: use of unstable library feature 'slice_concat_ext': trait should not have to exist [INFO] [stderr] --> src/main.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::slice::SliceConcatExt; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: for more information, see https://github.com/rust-lang/rust/issues/27747 [INFO] [stderr] = help: add #![feature(slice_concat_ext)] to the crate attributes to enable [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0425, E0658. [INFO] [stderr] For more information about an error, try `rustc --explain E0425`. [INFO] [stderr] error: Could not compile `roman`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0425, E0658. [INFO] [stderr] For more information about an error, try `rustc --explain E0425`. [INFO] [stderr] error: Could not compile `roman`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "41a85a94368fb6513ddc4a9e2f80bb4bfc672da400303b2884ef44f42b0537b7"` [INFO] running `"docker" "rm" "-f" "41a85a94368fb6513ddc4a9e2f80bb4bfc672da400303b2884ef44f42b0537b7"` [INFO] [stdout] 41a85a94368fb6513ddc4a9e2f80bb4bfc672da400303b2884ef44f42b0537b7