[INFO] crate starstruck 0.1.0-alpha.3 is already in cache [INFO] extracting crate starstruck 0.1.0-alpha.3 into work/ex/pr-60444/sources/master#92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf/reg/starstruck/0.1.0-alpha.3 [INFO] extracting crate starstruck 0.1.0-alpha.3 into work/ex/pr-60444/sources/try#cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b/reg/starstruck/0.1.0-alpha.3 [INFO] validating manifest of starstruck-0.1.0-alpha.3 on toolchain master#92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of starstruck-0.1.0-alpha.3 on toolchain try#cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing starstruck-0.1.0-alpha.3 [INFO] removed 0 missing tests [INFO] finished frobbing starstruck-0.1.0-alpha.3 [INFO] frobbed toml for starstruck-0.1.0-alpha.3 written to work/ex/pr-60444/sources/master#92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf/reg/starstruck/0.1.0-alpha.3/Cargo.toml [INFO] started frobbing starstruck-0.1.0-alpha.3 [INFO] removed 0 missing tests [INFO] finished frobbing starstruck-0.1.0-alpha.3 [INFO] frobbed toml for starstruck-0.1.0-alpha.3 written to work/ex/pr-60444/sources/try#cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b/reg/starstruck/0.1.0-alpha.3/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking starstruck-0.1.0-alpha.3 against try#cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b for pr-60444 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60444/worker-1/try#cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60444/sources/try#cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b/reg/starstruck/0.1.0-alpha.3:/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" "+cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] f087d509efb2cba50832071dd4fcfb064f922bbdf820f14d4bca1726a1aba7af [INFO] running `"docker" "start" "-a" "f087d509efb2cba50832071dd4fcfb064f922bbdf820f14d4bca1726a1aba7af"` [INFO] [stderr] Compiling winapi v0.3.7 [INFO] [stderr] Compiling serde v1.0.91 [INFO] [stderr] Compiling xcb v0.8.2 [INFO] [stderr] Compiling vek v0.9.7 [INFO] [stderr] Checking ash v0.24.4 [INFO] [stderr] Compiling num-derive v0.2.5 [INFO] [stderr] Compiling sha2 v0.7.1 [INFO] [stderr] Checking twox-hash v1.2.0 [INFO] [stderr] Checking rusttype v0.7.6 [INFO] [stderr] Compiling tempfile v3.0.7 [INFO] [stderr] Checking simplelog v0.5.3 [INFO] [stderr] Compiling glsl-to-spirv v0.1.7 [INFO] [stderr] error: failed to run custom build command for `xcb v0.8.2` [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/xcb-4ab2be31cd321c5f/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] error occured in handler: ('event: ', ('xcb', 'ScreenSaver', 'Notify')) [INFO] [stderr] Traceback (most recent call last): [INFO] [stderr] File "/opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/rs_client.py", line 2448, in [INFO] [stderr] module.generate() [INFO] [stderr] File "/opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/xcbgen/state.py", line 108, in generate [INFO] [stderr] self.close() [INFO] [stderr] File "/opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/rs_client.py", line 296, in rs_close [INFO] [stderr] _f.writeout(os.path.join(module.rs_srcdir, "ffi", "%s.rs" % _module_name(_ns.ext_name))) [INFO] [stderr] File "/opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/rs_client.py", line 114, in writeout [INFO] [stderr] with open(path, 'w') as f: [INFO] [stderr] OSError: [Errno 30] Read-only file system: '/opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/src/ffi/screensaver.rs' [INFO] [stderr] thread 'main' panicked at 'processing of /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/xml/screensaver.xml returned non-zero (1)', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/build.rs:75:17 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55d3c7cf9e43 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h1cba7cb914b608ae [INFO] [stderr] at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39 [INFO] [stderr] 1: 0x55d3c7cf5bdb - std::sys_common::backtrace::_print::h92597b49c897b408 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:71 [INFO] [stderr] 2: 0x55d3c7cf8c46 - std::panicking::default_hook::{{closure}}::h9b0d0d53f94db84d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] at src/libstd/panicking.rs:197 [INFO] [stderr] 3: 0x55d3c7cf89d9 - std::panicking::default_hook::h69c56094fed4f0ac [INFO] [stderr] at src/libstd/panicking.rs:211 [INFO] [stderr] 4: 0x55d3c7cf929f - std::panicking::rust_panic_with_hook::h2ca3a3a2b6eb89a6 [INFO] [stderr] at src/libstd/panicking.rs:474 [INFO] [stderr] 5: 0x55d3c7cf8e21 - std::panicking::continue_panic_fmt::h487d2ae0366396ba [INFO] [stderr] at src/libstd/panicking.rs:381 [INFO] [stderr] 6: 0x55d3c7cf8d6e - std::panicking::begin_panic_fmt::hde3942fdc4fea610 [INFO] [stderr] at src/libstd/panicking.rs:336 [INFO] [stderr] 7: 0x55d3c7ce0d84 - build_script_build::main::{{closure}}::hbbc7003a51a488e7 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/build.rs:75 [INFO] [stderr] 8: 0x55d3c7cdf5f3 - build_script_build::visit_xml::h4f251d0c3aaaedd4 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/build.rs:20 [INFO] [stderr] 9: 0x55d3c7ce0132 - build_script_build::main::hec7278bee96d5485 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/build.rs:56 [INFO] [stderr] 10: 0x55d3c7ce3e8f - std::rt::lang_start::{{closure}}::h8a7f214f5d3cfbee [INFO] [stderr] at /rustc/cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b/src/libstd/rt.rs:64 [INFO] [stderr] 11: 0x55d3c7cf8cf2 - std::panicking::try::do_call::h9f7374f73eec33b6 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] at src/libstd/panicking.rs:293 [INFO] [stderr] 12: 0x55d3c7cff829 - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 13: 0x55d3c7cf97ac - std::rt::lang_start_internal::h666767ed1fcf161d [INFO] [stderr] at src/libstd/panicking.rs:272 [INFO] [stderr] at src/libstd/panic.rs:388 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 14: 0x55d3c7ce3e68 - std::rt::lang_start::hc18b401fe5046bb9 [INFO] [stderr] at /rustc/cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b/src/libstd/rt.rs:64 [INFO] [stderr] 15: 0x55d3c7ce0ec9 - main [INFO] [stderr] 16: 0x7fdc8677c2e0 - __libc_start_main [INFO] [stderr] 17: 0x55d3c7cd8de9 - _start [INFO] [stderr] 18: 0x0 - [INFO] [stderr] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning[E0502]: cannot borrow `rows` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/vek-0.9.7/src/mat.rs:1897:31 [INFO] [stderr] | [INFO] [stderr] 1897 | rows[3][0] += rows[0].dot(t); [INFO] [stderr] | --------------^^^^---------- [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow occurs here [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | mutable borrow later used here [INFO] [stderr] ... [INFO] [stderr] 3952 | mat_declare_modules!{} [INFO] [stderr] | ---------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] [INFO] [stderr] warning[E0502]: cannot borrow `rows` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/vek-0.9.7/src/mat.rs:1898:31 [INFO] [stderr] | [INFO] [stderr] 1898 | rows[3][1] += rows[1].dot(t); [INFO] [stderr] | --------------^^^^---------- [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow occurs here [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | mutable borrow later used here [INFO] [stderr] ... [INFO] [stderr] 3952 | mat_declare_modules!{} [INFO] [stderr] | ---------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] [INFO] [stderr] warning[E0502]: cannot borrow `rows` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/vek-0.9.7/src/mat.rs:1899:31 [INFO] [stderr] | [INFO] [stderr] 1899 | rows[3][2] += rows[2].dot(t); [INFO] [stderr] | --------------^^^^---------- [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow occurs here [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | mutable borrow later used here [INFO] [stderr] ... [INFO] [stderr] 3952 | mat_declare_modules!{} [INFO] [stderr] | ---------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] [INFO] [stderr] warning[E0502]: cannot borrow `rows` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/vek-0.9.7/src/mat.rs:1900:31 [INFO] [stderr] | [INFO] [stderr] 1900 | rows[3][3] += rows[3].dot(t); [INFO] [stderr] | --------------^^^^---------- [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow occurs here [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | mutable borrow later used here [INFO] [stderr] ... [INFO] [stderr] 3952 | mat_declare_modules!{} [INFO] [stderr] | ---------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] [INFO] [stderr] warning[E0502]: cannot borrow `rows` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/vek-0.9.7/src/mat.rs:1897:31 [INFO] [stderr] | [INFO] [stderr] 1897 | rows[3][0] += rows[0].dot(t); [INFO] [stderr] | --------------^^^^---------- [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow occurs here [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | mutable borrow later used here [INFO] [stderr] ... [INFO] [stderr] 3952 | mat_declare_modules!{} [INFO] [stderr] | ---------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] [INFO] [stderr] warning[E0502]: cannot borrow `rows` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/vek-0.9.7/src/mat.rs:1898:31 [INFO] [stderr] | [INFO] [stderr] 1898 | rows[3][1] += rows[1].dot(t); [INFO] [stderr] | --------------^^^^---------- [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow occurs here [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | mutable borrow later used here [INFO] [stderr] ... [INFO] [stderr] 3952 | mat_declare_modules!{} [INFO] [stderr] | ---------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] [INFO] [stderr] warning[E0502]: cannot borrow `rows` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/vek-0.9.7/src/mat.rs:1899:31 [INFO] [stderr] | [INFO] [stderr] 1899 | rows[3][2] += rows[2].dot(t); [INFO] [stderr] | --------------^^^^---------- [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow occurs here [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | mutable borrow later used here [INFO] [stderr] ... [INFO] [stderr] 3952 | mat_declare_modules!{} [INFO] [stderr] | ---------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] [INFO] [stderr] warning[E0502]: cannot borrow `rows` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/vek-0.9.7/src/mat.rs:1900:31 [INFO] [stderr] | [INFO] [stderr] 1900 | rows[3][3] += rows[3].dot(t); [INFO] [stderr] | --------------^^^^---------- [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow occurs here [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | mutable borrow later used here [INFO] [stderr] ... [INFO] [stderr] 3952 | mat_declare_modules!{} [INFO] [stderr] | ---------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] [INFO] [stderr] warning[E0502]: cannot borrow `rows` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/vek-0.9.7/src/mat.rs:1897:31 [INFO] [stderr] | [INFO] [stderr] 1897 | rows[3][0] += rows[0].dot(t); [INFO] [stderr] | --------------^^^^---------- [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow occurs here [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | mutable borrow later used here [INFO] [stderr] ... [INFO] [stderr] 3974 | mat_declare_modules!{} [INFO] [stderr] | ---------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] [INFO] [stderr] warning[E0502]: cannot borrow `rows` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/vek-0.9.7/src/mat.rs:1898:31 [INFO] [stderr] | [INFO] [stderr] 1898 | rows[3][1] += rows[1].dot(t); [INFO] [stderr] | --------------^^^^---------- [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow occurs here [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | mutable borrow later used here [INFO] [stderr] ... [INFO] [stderr] 3974 | mat_declare_modules!{} [INFO] [stderr] | ---------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] [INFO] [stderr] warning[E0502]: cannot borrow `rows` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/vek-0.9.7/src/mat.rs:1899:31 [INFO] [stderr] | [INFO] [stderr] 1899 | rows[3][2] += rows[2].dot(t); [INFO] [stderr] | --------------^^^^---------- [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow occurs here [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | mutable borrow later used here [INFO] [stderr] ... [INFO] [stderr] 3974 | mat_declare_modules!{} [INFO] [stderr] | ---------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] [INFO] [stderr] warning[E0502]: cannot borrow `rows` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/vek-0.9.7/src/mat.rs:1900:31 [INFO] [stderr] | [INFO] [stderr] 1900 | rows[3][3] += rows[3].dot(t); [INFO] [stderr] | --------------^^^^---------- [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow occurs here [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | mutable borrow later used here [INFO] [stderr] ... [INFO] [stderr] 3974 | mat_declare_modules!{} [INFO] [stderr] | ---------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] [INFO] [stderr] warning[E0502]: cannot borrow `rows` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/vek-0.9.7/src/mat.rs:1897:31 [INFO] [stderr] | [INFO] [stderr] 1897 | rows[3][0] += rows[0].dot(t); [INFO] [stderr] | --------------^^^^---------- [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow occurs here [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | mutable borrow later used here [INFO] [stderr] ... [INFO] [stderr] 3974 | mat_declare_modules!{} [INFO] [stderr] | ---------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] [INFO] [stderr] warning[E0502]: cannot borrow `rows` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/vek-0.9.7/src/mat.rs:1898:31 [INFO] [stderr] | [INFO] [stderr] 1898 | rows[3][1] += rows[1].dot(t); [INFO] [stderr] | --------------^^^^---------- [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow occurs here [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | mutable borrow later used here [INFO] [stderr] ... [INFO] [stderr] 3974 | mat_declare_modules!{} [INFO] [stderr] | ---------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] [INFO] [stderr] warning[E0502]: cannot borrow `rows` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/vek-0.9.7/src/mat.rs:1899:31 [INFO] [stderr] | [INFO] [stderr] 1899 | rows[3][2] += rows[2].dot(t); [INFO] [stderr] | --------------^^^^---------- [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow occurs here [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | mutable borrow later used here [INFO] [stderr] ... [INFO] [stderr] 3974 | mat_declare_modules!{} [INFO] [stderr] | ---------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] [INFO] [stderr] warning[E0502]: cannot borrow `rows` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/vek-0.9.7/src/mat.rs:1900:31 [INFO] [stderr] | [INFO] [stderr] 1900 | rows[3][3] += rows[3].dot(t); [INFO] [stderr] | --------------^^^^---------- [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow occurs here [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | mutable borrow later used here [INFO] [stderr] ... [INFO] [stderr] 3974 | mat_declare_modules!{} [INFO] [stderr] | ---------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "f087d509efb2cba50832071dd4fcfb064f922bbdf820f14d4bca1726a1aba7af"` [INFO] running `"docker" "rm" "-f" "f087d509efb2cba50832071dd4fcfb064f922bbdf820f14d4bca1726a1aba7af"` [INFO] [stdout] f087d509efb2cba50832071dd4fcfb064f922bbdf820f14d4bca1726a1aba7af