[INFO] cloning repository https://github.com/nadirs/wiko
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nadirs/wiko" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnadirs%2Fwiko", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnadirs%2Fwiko'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04f7d99566a8d8c2d76bdc0bb8bda2daf993cfd0
[INFO] testing nadirs/wiko against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnadirs%2Fwiko" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nadirs/wiko on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nadirs/wiko
[INFO] finished tweaking git repo https://github.com/nadirs/wiko
[INFO] tweaked toml for git repo https://github.com/nadirs/wiko written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/nadirs/wiko already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c351557e536c445d17b2327914d026bc042b85e97e0aeffff2b9e507771a12ff
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c351557e536c445d17b2327914d026bc042b85e97e0aeffff2b9e507771a12ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c351557e536c445d17b2327914d026bc042b85e97e0aeffff2b9e507771a12ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c351557e536c445d17b2327914d026bc042b85e97e0aeffff2b9e507771a12ff", kill_on_drop: false }`
[INFO] [stdout] c351557e536c445d17b2327914d026bc042b85e97e0aeffff2b9e507771a12ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec7cae6d164df5cce9c7c6788cb1bd4c2ff0aeb0e5d48cf600b5c3aeccda2450
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ec7cae6d164df5cce9c7c6788cb1bd4c2ff0aeb0e5d48cf600b5c3aeccda2450", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.1.41
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.5
[INFO] [stderr]    Compiling httparse v1.2.3
[INFO] [stderr]    Compiling pq-sys v0.4.4
[INFO] [stderr]    Compiling serde v1.0.23
[INFO] [stderr]    Compiling modifier v0.1.0
[INFO] [stderr]    Compiling route-recognizer v0.1.12
[INFO] [stderr]    Compiling rand v0.3.18
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling num_cpus v1.7.0
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling base64 v0.6.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling idna v0.1.4
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling num-integer v0.1.35
[INFO] [stderr]    Compiling plugin v0.2.6
[INFO] [stderr]    Compiling regex v0.2.3
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]    Compiling num-iter v0.1.34
[INFO] [stderr]    Compiling num v0.1.41
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling phf v0.7.21
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling mime_guess v1.8.3
[INFO] [stderr]    Compiling url v1.6.0
[INFO] [stderr] error: failed to run custom build command for `mime_guess v1.8.3`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/mime_guess-fb8c365ca1289d59/build-script-gen_mime_types` (exit code: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-1.8.3/src/gen_mime_types.rs:22:67
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x555c8e4216b0 - std::backtrace_rs::backtrace::libunwind::trace::h577ea05e9ca4629a
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]      1:     0x555c8e4216b0 - std::backtrace_rs::backtrace::trace_unsynchronized::h50b9b72b84c7dd56
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x555c8e4216b0 - std::sys_common::backtrace::_print_fmt::h6541cf9823837fac
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]      3:     0x555c8e4216b0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf64fbff071026df5
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]      4:     0x555c8e43ab6c - core::fmt::write::h9ddafa4860d8adff
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/fmt/mod.rs:1082
[INFO] [stderr]      5:     0x555c8e41ff47 - std::io::Write::write_fmt::h1d2ee292d2b65481
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/mod.rs:1514
[INFO] [stderr]      6:     0x555c8e423780 - std::sys_common::backtrace::_print::ha25f9ff5080d886d
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]      7:     0x555c8e423780 - std::sys_common::backtrace::print::h213e8aa8dc5405c0
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]      8:     0x555c8e423780 - std::panicking::default_hook::{{closure}}::h6482fae49ef9d963
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:200
[INFO] [stderr]      9:     0x555c8e4234cc - std::panicking::default_hook::he30ad7589e0970f9
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:219
[INFO] [stderr]     10:     0x555c8e423de3 - std::panicking::rust_panic_with_hook::haa1ed36ada4ffb03
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:569
[INFO] [stderr]     11:     0x555c8e4239b9 - std::panicking::begin_panic_handler::{{closure}}::h7001af1bb21aeaeb
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:476
[INFO] [stderr]     12:     0x555c8e421b3c - std::sys_common::backtrace::__rust_end_short_backtrace::h39910f557f5f2367
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]     13:     0x555c8e423979 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:475
[INFO] [stderr]     14:     0x555c8e439e91 - core::panicking::panic_fmt::h4e2659771ebc78eb
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/panicking.rs:85
[INFO] [stderr]     15:     0x555c8e439cb3 - core::option::expect_none_failed::h448b58a024c2c33a
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/option.rs:1221
[INFO] [stderr]     16:     0x555c8e3fbb1b - core::result::Result<T,E>::unwrap::hfebc188e65943705
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/result.rs:973
[INFO] [stderr]     17:     0x555c8e3da94f - build_script_gen_mime_types::main::h2a909229bfed3275
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-1.8.3/src/gen_mime_types.rs:22
[INFO] [stderr]     18:     0x555c8e3dcc0b - core::ops::function::FnOnce::call_once::h4bee9736f68c7df3
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stderr]     19:     0x555c8e3e3d0e - std::sys_common::backtrace::__rust_begin_short_backtrace::hfcad3cda003d0680
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]     20:     0x555c8e3dcb21 - std::rt::lang_start::{{closure}}::h5533e478f59bc6c8
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/rt.rs:66
[INFO] [stderr]     21:     0x555c8e4241e1 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h6a3209f124be2235
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:259
[INFO] [stderr]     22:     0x555c8e4241e1 - std::panicking::try::do_call::h88ce358792b64df0
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stderr]     23:     0x555c8e4241e1 - std::panicking::try::h6311c259678e50fc
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stderr]     24:     0x555c8e4241e1 - std::panic::catch_unwind::h56c5716807d659a1
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stderr]     25:     0x555c8e4241e1 - std::rt::lang_start_internal::h73711f37ecfcb277
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/rt.rs:51
[INFO] [stderr]     26:     0x555c8e3dcaf7 - std::rt::lang_start::h98f6db161289aca3
[INFO] [stderr]                                  at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/rt.rs:65
[INFO] [stderr]     27:     0x555c8e3dbe7a - main
[INFO] [stderr]     28:     0x7fdb3d9670b3 - __libc_start_main
[INFO] [stderr]     29:     0x555c8e3c70ae - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0713]: borrow may still be in use when destructor runs
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.6.0/src/form_urlencoded.rs:261:40
[INFO] [stdout]     |
[INFO] [stdout] 259 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stdout]     |      -- lifetime `'a` defined here
[INFO] [stdout] 260 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stdout] 261 |     fn finish(self) -> &'a mut ::Url { self.url }
[INFO] [stdout]     |                                        ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        returning this value requires that `*self.url` is borrowed for `'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0713`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ec7cae6d164df5cce9c7c6788cb1bd4c2ff0aeb0e5d48cf600b5c3aeccda2450", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec7cae6d164df5cce9c7c6788cb1bd4c2ff0aeb0e5d48cf600b5c3aeccda2450", kill_on_drop: false }`
[INFO] [stdout] ec7cae6d164df5cce9c7c6788cb1bd4c2ff0aeb0e5d48cf600b5c3aeccda2450
