[INFO] updating cached repository pingzing/oxide-skies [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/pingzing/oxide-skies [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/pingzing/oxide-skies" "work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/pingzing/oxide-skies"` [INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/pingzing/oxide-skies'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/pingzing/oxide-skies" "work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/pingzing/oxide-skies"` [INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/pingzing/oxide-skies'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 823e8cb14d60774dc769ff5c3437d0dbe7b0393f [INFO] sha for GitHub repo pingzing/oxide-skies: 823e8cb14d60774dc769ff5c3437d0dbe7b0393f [INFO] validating manifest of pingzing/oxide-skies on toolchain master#589beb979c0f1a9736e02e578913db88398c3ba5 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of pingzing/oxide-skies on toolchain try#42445ded8fd34235a676755cb5d079658ed51f6a [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing pingzing/oxide-skies [INFO] finished frobbing pingzing/oxide-skies [INFO] frobbed toml for pingzing/oxide-skies written to work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/pingzing/oxide-skies/Cargo.toml [INFO] started frobbing pingzing/oxide-skies [INFO] finished frobbing pingzing/oxide-skies [INFO] frobbed toml for pingzing/oxide-skies written to work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/pingzing/oxide-skies/Cargo.toml [INFO] crate pingzing/oxide-skies already has a lockfile, it will not be regenerated [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/pingzing/oxide-skies/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking pingzing/oxide-skies against master#589beb979c0f1a9736e02e578913db88398c3ba5 for pr-60944 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60944/worker-2/master#589beb979c0f1a9736e02e578913db88398c3ba5:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/pingzing/oxide-skies:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 8ee0be55101c9a3277d7ae1d322950e95263012f8c58176a77e40680e951f149 [INFO] running `"docker" "start" "-a" "8ee0be55101c9a3277d7ae1d322950e95263012f8c58176a77e40680e951f149"` [INFO] [stderr] Compiling syntex_pos v0.39.0 [INFO] [stderr] Checking filetime v0.1.15 [INFO] [stderr] Compiling openssl-sys-extras v0.7.14 [INFO] [stderr] Compiling openssl v0.7.14 [INFO] [stderr] Compiling syntex_syntax v0.29.3 [INFO] [stderr] Checking serde_json v0.7.4 [INFO] [stderr] error: failed to run custom build command for `openssl-sys-extras v0.7.14` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/openssl-sys-extras-b70e6f0f36db4d81/build-script-build` (exit code: 101) [INFO] [stderr] --- stdout [INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] OPT_LEVEL = Some("0") [INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] HOST = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] HOST = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] CC_x86_64-unknown-linux-gnu = None [INFO] [stderr] CC_x86_64_unknown_linux_gnu = None [INFO] [stderr] HOST_CC = None [INFO] [stderr] CC = None [INFO] [stderr] HOST = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] HOST = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] CFLAGS_x86_64-unknown-linux-gnu = None [INFO] [stderr] CFLAGS_x86_64_unknown_linux_gnu = None [INFO] [stderr] HOST_CFLAGS = None [INFO] [stderr] CFLAGS = None [INFO] [stderr] DEBUG = Some("true") [INFO] [stderr] running: "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-m64" "-Wall" "-Wextra" "-o" "/opt/crater/target/debug/build/openssl-sys-extras-060e86ff6e3654d1/out/src/openssl_shim.o" "-c" "src/openssl_shim.c" [INFO] [stderr] cargo:warning=src/openssl_shim.c: In function 'SSL_CTX_set_ecdh_auto_shim': [INFO] [stderr] cargo:warning=src/openssl_shim.c:121:41: warning: unused parameter 'ctx' [-Wunused-parameter] [INFO] [stderr] cargo:warning= int SSL_CTX_set_ecdh_auto_shim(SSL_CTX *ctx, int onoff) { [INFO] [stderr] cargo:warning= ^~~ [INFO] [stderr] cargo:warning=src/openssl_shim.c: In function 'DH_new_from_params': [INFO] [stderr] cargo:warning=src/openssl_shim.c:132:7: error: dereferencing pointer to incomplete type 'DH {aka struct dh_st}' [INFO] [stderr] cargo:warning= dh->p = p; [INFO] [stderr] cargo:warning= ^~ [INFO] [stderr] cargo:warning=src/openssl_shim.c: In function 'X509_get_extensions_shim': [INFO] [stderr] cargo:warning=src/openssl_shim.c:143:13: error: dereferencing pointer to incomplete type 'X509 {aka struct x509_st}' [INFO] [stderr] cargo:warning= return x->cert_info ? x->cert_info->extensions : NULL; [INFO] [stderr] cargo:warning= ^~ [INFO] [stderr] cargo:warning=src/openssl_shim.c:144:1: warning: control reaches end of non-void function [-Wreturn-type] [INFO] [stderr] cargo:warning= } [INFO] [stderr] cargo:warning= ^ [INFO] [stderr] exit code: 1 [INFO] [stderr] [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at ' [INFO] [stderr] [INFO] [stderr] Internal error occurred: Command "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-m64" "-Wall" "-Wextra" "-o" "/opt/crater/target/debug/build/openssl-sys-extras-060e86ff6e3654d1/out/src/openssl_shim.o" "-c" "src/openssl_shim.c" with args "cc" did not execute successfully (status code exit code: 1). [INFO] [stderr] [INFO] [stderr] ', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.55/src/lib.rs:1672:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x5590fce72163 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::hfa97320445f5527e [INFO] [stderr] at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39 [INFO] [stderr] 1: 0x5590fce6dd3b - std::sys_common::backtrace::_print::hd3b576ae93ab7edf [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:71 [INFO] [stderr] 2: 0x5590fce70f16 - std::panicking::default_hook::{{closure}}::hc91771277650363b [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] at src/libstd/panicking.rs:197 [INFO] [stderr] 3: 0x5590fce70ca9 - std::panicking::default_hook::h907980fba90a05d4 [INFO] [stderr] at src/libstd/panicking.rs:211 [INFO] [stderr] 4: 0x5590fce715cf - std::panicking::rust_panic_with_hook::h54b15fd7dd35bcdd [INFO] [stderr] at src/libstd/panicking.rs:474 [INFO] [stderr] 5: 0x5590fce71151 - std::panicking::continue_panic_fmt::h26423b23bd3f9b26 [INFO] [stderr] at src/libstd/panicking.rs:381 [INFO] [stderr] 6: 0x5590fce7109e - std::panicking::begin_panic_fmt::h309fe20dd06e1651 [INFO] [stderr] at src/libstd/panicking.rs:336 [INFO] [stderr] 7: 0x5590fce27015 - gcc::fail::he17ab2873e82c3ff [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.55/src/lib.rs:1672 [INFO] [stderr] 8: 0x5590fce1680e - gcc::Build::compile::h71106e8018d0148c [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.55/src/lib.rs:785 [INFO] [stderr] 9: 0x5590fce0e821 - build_script_build::main::h11899378414a0aa0 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/openssl-sys-extras-0.7.14/build.rs:19 [INFO] [stderr] 10: 0x5590fce1183f - std::rt::lang_start::{{closure}}::h27705823ac82d19c [INFO] [stderr] at /rustc/589beb979c0f1a9736e02e578913db88398c3ba5/src/libstd/rt.rs:64 [INFO] [stderr] 11: 0x5590fce71022 - std::panicking::try::do_call::h1f4120859950b8a8 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] at src/libstd/panicking.rs:293 [INFO] [stderr] 12: 0x5590fce79669 - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 13: 0x5590fce71adc - std::rt::lang_start_internal::hbc39bfd78551214b [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: 0x5590fce11818 - std::rt::lang_start::hbee045a7dc831f16 [INFO] [stderr] at /rustc/589beb979c0f1a9736e02e578913db88398c3ba5/src/libstd/rt.rs:64 [INFO] [stderr] 15: 0x5590fce0fba9 - main [INFO] [stderr] 16: 0x7fd521e3a2e0 - __libc_start_main [INFO] [stderr] 17: 0x5590fce0e3c9 - _start [INFO] [stderr] 18: 0x0 - [INFO] [stderr] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: failed to run custom build command for `openssl v0.7.14` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/openssl-f59f9a1cf5a18447/build-script-build` (exit code: 101) [INFO] [stderr] --- stdout [INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] OPT_LEVEL = Some("0") [INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] HOST = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] HOST = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] CC_x86_64-unknown-linux-gnu = None [INFO] [stderr] CC_x86_64_unknown_linux_gnu = None [INFO] [stderr] HOST_CC = None [INFO] [stderr] CC = None [INFO] [stderr] HOST = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] HOST = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] CFLAGS_x86_64-unknown-linux-gnu = None [INFO] [stderr] CFLAGS_x86_64_unknown_linux_gnu = None [INFO] [stderr] HOST_CFLAGS = None [INFO] [stderr] CFLAGS = None [INFO] [stderr] DEBUG = Some("true") [INFO] [stderr] running: "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-m64" "-Wall" "-Wextra" "-o" "/opt/crater/target/debug/build/openssl-dc8a3caa2aeda8c0/out/src/c_helpers.o" "-c" "src/c_helpers.c" [INFO] [stderr] cargo:warning=src/c_helpers.c: In function 'rust_SSL_clone': [INFO] [stderr] cargo:warning=src/c_helpers.c:4:5: warning: implicit declaration of function 'CRYPTO_add' [-Wimplicit-function-declaration] [INFO] [stderr] cargo:warning= CRYPTO_add(&ssl->references, 1, CRYPTO_LOCK_SSL); [INFO] [stderr] cargo:warning= ^~~~~~~~~~ [INFO] [stderr] cargo:warning=src/c_helpers.c:4:20: error: dereferencing pointer to incomplete type 'SSL {aka struct ssl_st}' [INFO] [stderr] cargo:warning= CRYPTO_add(&ssl->references, 1, CRYPTO_LOCK_SSL); [INFO] [stderr] cargo:warning= ^~ [INFO] [stderr] cargo:warning=src/c_helpers.c:4:37: error: 'CRYPTO_LOCK_SSL' undeclared (first use in this function) [INFO] [stderr] cargo:warning= CRYPTO_add(&ssl->references, 1, CRYPTO_LOCK_SSL); [INFO] [stderr] cargo:warning= ^~~~~~~~~~~~~~~ [INFO] [stderr] cargo:warning=src/c_helpers.c:4:37: note: each undeclared identifier is reported only once for each function it appears in [INFO] [stderr] cargo:warning=src/c_helpers.c: In function 'rust_SSL_CTX_clone': [INFO] [stderr] cargo:warning=src/c_helpers.c:8:20: error: dereferencing pointer to incomplete type 'SSL_CTX {aka struct ssl_ctx_st}' [INFO] [stderr] cargo:warning= CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); [INFO] [stderr] cargo:warning= ^~ [INFO] [stderr] cargo:warning=src/c_helpers.c:8:35: error: 'CRYPTO_LOCK_SSL_CTX' undeclared (first use in this function) [INFO] [stderr] cargo:warning= CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); [INFO] [stderr] cargo:warning= ^~~~~~~~~~~~~~~~~~~ [INFO] [stderr] cargo:warning=src/c_helpers.c: In function 'rust_X509_clone': [INFO] [stderr] cargo:warning=src/c_helpers.c:12:21: error: dereferencing pointer to incomplete type 'X509 {aka struct x509_st}' [INFO] [stderr] cargo:warning= CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509); [INFO] [stderr] cargo:warning= ^~ [INFO] [stderr] cargo:warning=src/c_helpers.c:12:36: error: 'CRYPTO_LOCK_X509' undeclared (first use in this function) [INFO] [stderr] cargo:warning= CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509); [INFO] [stderr] cargo:warning= ^~~~~~~~~~~~~~~~ [INFO] [stderr] exit code: 1 [INFO] [stderr] [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at ' [INFO] [stderr] [INFO] [stderr] Internal error occurred: Command "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-m64" "-Wall" "-Wextra" "-o" "/opt/crater/target/debug/build/openssl-dc8a3caa2aeda8c0/out/src/c_helpers.o" "-c" "src/c_helpers.c" with args "cc" did not execute successfully (status code exit code: 1). [INFO] [stderr] [INFO] [stderr] ', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.55/src/lib.rs:1672:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55e23bd48413 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::hfa97320445f5527e [INFO] [stderr] at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39 [INFO] [stderr] 1: 0x55e23bd4406b - std::sys_common::backtrace::_print::hd3b576ae93ab7edf [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:71 [INFO] [stderr] 2: 0x55e23bd47246 - std::panicking::default_hook::{{closure}}::hc91771277650363b [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] at src/libstd/panicking.rs:197 [INFO] [stderr] 3: 0x55e23bd46fd9 - std::panicking::default_hook::h907980fba90a05d4 [INFO] [stderr] at src/libstd/panicking.rs:211 [INFO] [stderr] 4: 0x55e23bd478ff - std::panicking::rust_panic_with_hook::h54b15fd7dd35bcdd [INFO] [stderr] at src/libstd/panicking.rs:474 [INFO] [stderr] 5: 0x55e23bd47481 - std::panicking::continue_panic_fmt::h26423b23bd3f9b26 [INFO] [stderr] at src/libstd/panicking.rs:381 [INFO] [stderr] 6: 0x55e23bd473ce - std::panicking::begin_panic_fmt::h309fe20dd06e1651 [INFO] [stderr] at src/libstd/panicking.rs:336 [INFO] [stderr] 7: 0x55e23bcfd365 - gcc::fail::he17ab2873e82c3ff [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.55/src/lib.rs:1672 [INFO] [stderr] 8: 0x55e23bcecb5e - gcc::Build::compile::h71106e8018d0148c [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.55/src/lib.rs:785 [INFO] [stderr] 9: 0x55e23bce7174 - build_script_build::main::h9216d0a5dcd17693 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/openssl-0.7.14/build.rs:15 [INFO] [stderr] 10: 0x55e23bce7c0f - std::rt::lang_start::{{closure}}::h35a3440beaf34334 [INFO] [stderr] at /rustc/589beb979c0f1a9736e02e578913db88398c3ba5/src/libstd/rt.rs:64 [INFO] [stderr] 11: 0x55e23bd47352 - std::panicking::try::do_call::h1f4120859950b8a8 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] at src/libstd/panicking.rs:293 [INFO] [stderr] 12: 0x55e23bd4f919 - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 13: 0x55e23bd47e0c - std::rt::lang_start_internal::hbc39bfd78551214b [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: 0x55e23bce7be8 - std::rt::lang_start::h9bb06dcf359e71ec [INFO] [stderr] at /rustc/589beb979c0f1a9736e02e578913db88398c3ba5/src/libstd/rt.rs:64 [INFO] [stderr] 15: 0x55e23bce7389 - main [INFO] [stderr] 16: 0x7f4cd9ec32e0 - __libc_start_main [INFO] [stderr] 17: 0x55e23bce6d79 - _start [INFO] [stderr] 18: 0x0 - [INFO] [stderr] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning[E0502]: cannot borrow `cx.parse_sess.span_diagnostic` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/syntex_syntax-0.29.3/src/ext/expand.rs:1325:25 [INFO] [stderr] | [INFO] [stderr] 1315 | let mut expander = MacroExpander::new(&mut cx); [INFO] [stderr] | ------- mutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 1325 | let err_count = cx.parse_sess.span_diagnostic.err_count(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ immutable borrow occurs here [INFO] [stderr] 1326 | let mut ret = expander.fold_crate(c); [INFO] [stderr] | -------- mutable borrow later used here [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" "8ee0be55101c9a3277d7ae1d322950e95263012f8c58176a77e40680e951f149"` [INFO] running `"docker" "rm" "-f" "8ee0be55101c9a3277d7ae1d322950e95263012f8c58176a77e40680e951f149"` [INFO] [stdout] 8ee0be55101c9a3277d7ae1d322950e95263012f8c58176a77e40680e951f149