[INFO] updating cached repository bcmyers/rvalue [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/bcmyers/rvalue [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/bcmyers/rvalue" "work/ex/beta-1.38-1/sources/1.37.0/gh/bcmyers/rvalue"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/bcmyers/rvalue'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/bcmyers/rvalue" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bcmyers/rvalue"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bcmyers/rvalue'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] c84281174b216b3e1e0f2d861f1c9e7ea842f58e [INFO] sha for GitHub repo bcmyers/rvalue: c84281174b216b3e1e0f2d861f1c9e7ea842f58e [INFO] validating manifest of bcmyers/rvalue on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of bcmyers/rvalue on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing bcmyers/rvalue [INFO] finished frobbing bcmyers/rvalue [INFO] frobbed toml for bcmyers/rvalue written to work/ex/beta-1.38-1/sources/1.37.0/gh/bcmyers/rvalue/Cargo.toml [INFO] started frobbing bcmyers/rvalue [INFO] finished frobbing bcmyers/rvalue [INFO] frobbed toml for bcmyers/rvalue written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bcmyers/rvalue/Cargo.toml [INFO] crate bcmyers/rvalue already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing bcmyers/rvalue against beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bcmyers/rvalue:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"` [INFO] [stdout] 82cb29785d8d0a8bd5c762be22c7811ce65fe7f68102b9dc847c50a60e47983e [INFO] running `"docker" "start" "-a" "82cb29785d8d0a8bd5c762be22c7811ce65fe7f68102b9dc847c50a60e47983e"` [INFO] [stderr] Compiling quine-mc_cluskey v0.2.4 [INFO] [stderr] Compiling backtrace-sys v0.1.5 [INFO] [stderr] Compiling toml v0.1.30 [INFO] [stderr] Compiling quick-xml v0.4.2 [INFO] [stderr] Compiling openssl-sys-extras v0.7.14 [INFO] [stderr] Compiling openssl v0.7.14 [INFO] [stderr] Compiling url v1.2.4 [INFO] [stderr] Compiling msdos_time v0.1.4 [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-8a65baf114bbcbbc/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] PROFILE = Some("debug") [INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] debug=true opt-level=0 [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] running: "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-g" "-m64" "-fPIC" "-o" "/opt/crater/target/debug/build/openssl-sys-extras-13b2a7e4d2fbe515/out/src/openssl_shim.o" "-c" "src/openssl_shim.c" [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] ExitStatus(ExitStatus(256)) [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] command did not execute successfully, got: exit code: 1 [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'explicit panic', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.40/src/lib.rs:1006:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x5634175eda6b - backtrace::backtrace::libunwind::trace::h23ae608c8b906c69 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x5634175eda6b - backtrace::backtrace::trace_unsynchronized::h65b3ea295a85fd48 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x5634175eda6b - std::sys_common::backtrace::_print::h24f527b44b6cfc06 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x5634175eda6b - std::sys_common::backtrace::print::h712608e4347fd64a [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x5634175eda6b - std::panicking::default_hook::{{closure}}::h6c3d570c2b500048 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x5634175ed746 - std::panicking::default_hook::hb29963fb4747e0dd [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x5634175ee12d - std::panicking::rust_panic_with_hook::hd1236c3083de823a [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x5634175cf4f5 - std::panicking::begin_panic::h64b6dda60f6a419a [INFO] [stderr] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panicking.rs:411 [INFO] [stderr] 8: 0x5634175a9148 - gcc::fail::h95b8b240f39d0e6a [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.40/src/lib.rs:1006 [INFO] [stderr] 9: 0x5634175a8dd5 - gcc::run::hbe3833031916de4d [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.40/src/lib.rs:1000 [INFO] [stderr] 10: 0x56341759f8de - gcc::Config::compile_object::h086a43a3d95f4b84 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.40/src/lib.rs:435 [INFO] [stderr] 11: 0x56341759f1eb - gcc::Config::compile_objects::ha4f958fc18711db7 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.40/src/lib.rs:405 [INFO] [stderr] 12: 0x56341759e170 - gcc::Config::compile::h03b9489545f77e3f [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.40/src/lib.rs:353 [INFO] [stderr] 13: 0x563417599cff - build_script_build::main::he797c579556b12ab [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/openssl-sys-extras-0.7.14/build.rs:19 [INFO] [stderr] 14: 0x56341759b8a0 - std::rt::lang_start::{{closure}}::hd796b04458fa801d [INFO] [stderr] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/rt.rs:64 [INFO] [stderr] 15: 0x5634175edb83 - std::rt::lang_start_internal::{{closure}}::hf367a5a6ae52b0ce [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 16: 0x5634175edb83 - std::panicking::try::do_call::h9d779bc5e27e3284 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 17: 0x5634175f564a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 18: 0x5634175ee63d - std::panicking::try::h4af22d9cb0afa351 [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 19: 0x5634175ee63d - std::panic::catch_unwind::hbb68a9ada87bfb97 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 20: 0x5634175ee63d - std::rt::lang_start_internal::hba9e09d74440ce4d [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 21: 0x56341759b879 - std::rt::lang_start::hfd7740673d54f2d9 [INFO] [stderr] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/rt.rs:64 [INFO] [stderr] 22: 0x56341759afaa - main [INFO] [stderr] 23: 0x7fc625c552e1 - __libc_start_main [INFO] [stderr] 24: 0x5634175998fa - _start [INFO] [stderr] 25: 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-e3b8e9c32618d52e/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] PROFILE = Some("debug") [INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu") [INFO] [stderr] debug=true opt-level=0 [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] running: "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-g" "-m64" "-fPIC" "-o" "/opt/crater/target/debug/build/openssl-4deb3bf027b0c487/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] ExitStatus(ExitStatus(256)) [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] command did not execute successfully, got: exit code: 1 [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'explicit panic', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.40/src/lib.rs:1006:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55eb3afeb57b - backtrace::backtrace::libunwind::trace::h23ae608c8b906c69 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55eb3afeb57b - backtrace::backtrace::trace_unsynchronized::h65b3ea295a85fd48 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55eb3afeb57b - std::sys_common::backtrace::_print::h24f527b44b6cfc06 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55eb3afeb57b - std::sys_common::backtrace::print::h712608e4347fd64a [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55eb3afeb57b - std::panicking::default_hook::{{closure}}::h6c3d570c2b500048 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x55eb3afeb256 - std::panicking::default_hook::hb29963fb4747e0dd [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x55eb3afebc3d - std::panicking::rust_panic_with_hook::hd1236c3083de823a [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x55eb3afcd0c5 - std::panicking::begin_panic::h64b6dda60f6a419a [INFO] [stderr] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panicking.rs:411 [INFO] [stderr] 8: 0x55eb3afa6d18 - gcc::fail::h95b8b240f39d0e6a [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.40/src/lib.rs:1006 [INFO] [stderr] 9: 0x55eb3afa69a5 - gcc::run::hbe3833031916de4d [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.40/src/lib.rs:1000 [INFO] [stderr] 10: 0x55eb3af9d4ae - gcc::Config::compile_object::h086a43a3d95f4b84 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.40/src/lib.rs:435 [INFO] [stderr] 11: 0x55eb3af9cdbb - gcc::Config::compile_objects::ha4f958fc18711db7 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.40/src/lib.rs:405 [INFO] [stderr] 12: 0x55eb3af9bd40 - gcc::Config::compile::h03b9489545f77e3f [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.40/src/lib.rs:353 [INFO] [stderr] 13: 0x55eb3af9ad13 - build_script_build::main::h50617f3c8c88aa91 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/openssl-0.7.14/build.rs:15 [INFO] [stderr] 14: 0x55eb3af9a9a0 - std::rt::lang_start::{{closure}}::h28587374527f92d7 [INFO] [stderr] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/rt.rs:64 [INFO] [stderr] 15: 0x55eb3afeb693 - std::rt::lang_start_internal::{{closure}}::hf367a5a6ae52b0ce [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 16: 0x55eb3afeb693 - std::panicking::try::do_call::h9d779bc5e27e3284 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 17: 0x55eb3aff30da - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 18: 0x55eb3afec14d - std::panicking::try::h4af22d9cb0afa351 [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 19: 0x55eb3afec14d - std::panic::catch_unwind::hbb68a9ada87bfb97 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 20: 0x55eb3afec14d - std::rt::lang_start_internal::hba9e09d74440ce4d [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 21: 0x55eb3af9a979 - std::rt::lang_start::h02a6690eeff15d4c [INFO] [stderr] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/rt.rs:64 [INFO] [stderr] 22: 0x55eb3af9aeda - main [INFO] [stderr] 23: 0x7fe09c1642e1 - __libc_start_main [INFO] [stderr] 24: 0x55eb3af9a11a - _start [INFO] [stderr] 25: 0x0 - [INFO] [stderr] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.2.4/src/form_urlencoded.rs:246:40 [INFO] [stderr] | [INFO] [stderr] 244 | impl<'a> Target for ::UrlQuery<'a> { [INFO] [stderr] | -- lifetime `'a` defined here [INFO] [stderr] 245 | fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization } [INFO] [stderr] 246 | fn finish(self) -> &'a mut ::Url { self.url } [INFO] [stderr] | ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait [INFO] [stderr] | | [INFO] [stderr] | returning this value requires that `*self.url` is borrowed for `'a` [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] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "82cb29785d8d0a8bd5c762be22c7811ce65fe7f68102b9dc847c50a60e47983e"` [INFO] running `"docker" "rm" "-f" "82cb29785d8d0a8bd5c762be22c7811ce65fe7f68102b9dc847c50a60e47983e"` [INFO] [stdout] 82cb29785d8d0a8bd5c762be22c7811ce65fe7f68102b9dc847c50a60e47983e