[INFO] updating cached repository yberreby/benchmarks [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/yberreby/benchmarks [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/yberreby/benchmarks" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/yberreby/benchmarks"` [INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/yberreby/benchmarks'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/yberreby/benchmarks" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/yberreby/benchmarks"` [INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/yberreby/benchmarks'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 2815509e178888da003eeab674c296fa9d17b791 [INFO] sha for GitHub repo yberreby/benchmarks: 2815509e178888da003eeab674c296fa9d17b791 [INFO] validating manifest of yberreby/benchmarks on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of yberreby/benchmarks on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing yberreby/benchmarks [INFO] finished frobbing yberreby/benchmarks [INFO] frobbed toml for yberreby/benchmarks written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/yberreby/benchmarks/Cargo.toml [INFO] started frobbing yberreby/benchmarks [INFO] finished frobbing yberreby/benchmarks [INFO] frobbed toml for yberreby/benchmarks written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/yberreby/benchmarks/Cargo.toml [INFO] crate yberreby/benchmarks already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking yberreby/benchmarks against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-5/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/yberreby/benchmarks:/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] bc81446bbc747b1e7d4e6a96d1f103ba7d0e608c634b5c3fc2f98dabaa039286 [INFO] running `"docker" "start" "-a" "bc81446bbc747b1e7d4e6a96d1f103ba7d0e608c634b5c3fc2f98dabaa039286"` [INFO] [stderr] Checking libc v0.2.8 [INFO] [stderr] Checking crossbeam v0.2.10 [INFO] [stderr] Checking rand v0.3.14 [INFO] [stderr] Checking chan v0.1.18 [INFO] [stderr] Checking benchmarks v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `stdout` [INFO] [stderr] --> benches/stdio.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | let stdout = stdout.lock(); [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_stdout` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] error[E0635]: unknown feature `str_char` [INFO] [stderr] --> benches/char_at.rs:2:12 [INFO] [stderr] | [INFO] [stderr] 2 | #![feature(str_char)] [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0635`. [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> benches/stdio.rs:23:9 [INFO] [stderr] | [INFO] [stderr] 23 | let mut stdout = std::io::stdout(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> benches/bnned.rs:14:13 [INFO] [stderr] | [INFO] [stderr] 14 | for i in 0..1_000_000 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] error: Could not compile `benchmarks`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error[E0635]: unknown feature `str_char` [INFO] [stderr] --> benches/bnned.rs:2:12 [INFO] [stderr] | [INFO] [stderr] 2 | #![feature(str_char)] [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> benches/stdio.rs:43:9 [INFO] [stderr] | [INFO] [stderr] 43 | let mut stdout = io::stdout(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] error[E0635]: unknown feature `str_char` [INFO] [stderr] --> benches/stdio.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | #![feature(str_char)] [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0635`. [INFO] [stderr] [INFO] [stderr] error: Could not compile `benchmarks`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> benches/stdio.rs:35:9 [INFO] [stderr] | [INFO] [stderr] 35 | stdout.write(TEST_STR.as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> benches/stdio.rs:46:9 [INFO] [stderr] | [INFO] [stderr] 46 | stdout.write(TEST_STR.as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0635`. [INFO] [stderr] error: Could not compile `benchmarks`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error[E0433]: failed to resolve: could not find `heap` in `alloc` [INFO] [stderr] --> benches/alloc.rs:11:14 [INFO] [stderr] | [INFO] [stderr] 11 | alloc::heap::allocate(4, 64) [INFO] [stderr] | ^^^^ could not find `heap` in `alloc` [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0433`. [INFO] [stderr] error: Could not compile `benchmarks`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "bc81446bbc747b1e7d4e6a96d1f103ba7d0e608c634b5c3fc2f98dabaa039286"` [INFO] running `"docker" "rm" "-f" "bc81446bbc747b1e7d4e6a96d1f103ba7d0e608c634b5c3fc2f98dabaa039286"` [INFO] [stdout] bc81446bbc747b1e7d4e6a96d1f103ba7d0e608c634b5c3fc2f98dabaa039286