[INFO] cloning repository https://github.com/4superu/rust_iron
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/4superu/rust_iron" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4superu%2Frust_iron", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4superu%2Frust_iron'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 382993ea0a05f7551d0581fab56d3b9b5e073938
[INFO] building 4superu/rust_iron against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4superu%2Frust_iron" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/4superu/rust_iron on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/4superu/rust_iron
[INFO] finished tweaking git repo https://github.com/4superu/rust_iron
[INFO] tweaked toml for git repo https://github.com/4superu/rust_iron written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/4superu/rust_iron already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded buf_redux v0.3.0
[INFO] [stderr]   Downloaded num-rational v0.1.39
[INFO] [stderr]   Downloaded bodyparser v0.5.0
[INFO] [stderr]   Downloaded params v0.6.0
[INFO] [stderr]   Downloaded urlencoded v0.5.0
[INFO] [stderr]   Downloaded handlebars v0.29.0
[INFO] [stderr]   Downloaded gcc v0.3.53
[INFO] [stderr]   Downloaded quick-error v1.2.0
[INFO] [stderr]   Downloaded num-bigint v0.1.40
[INFO] [stderr]   Downloaded itoa v0.3.3
[INFO] [stderr]   Downloaded handlebars-iron v0.25.2
[INFO] [stderr]   Downloaded rusqlite v0.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e58af88bf562c4fcf044d60db056f7a3b0e4f38bd1c357fdc441d561c580707f
[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" "e58af88bf562c4fcf044d60db056f7a3b0e4f38bd1c357fdc441d561c580707f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e58af88bf562c4fcf044d60db056f7a3b0e4f38bd1c357fdc441d561c580707f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e58af88bf562c4fcf044d60db056f7a3b0e4f38bd1c357fdc441d561c580707f", kill_on_drop: false }`
[INFO] [stdout] e58af88bf562c4fcf044d60db056f7a3b0e4f38bd1c357fdc441d561c580707f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d96ccf623d4835accd19b10d8ecf460caa6cb85514cba437fb1c0d3ac3f3ee35
[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" "d96ccf623d4835accd19b10d8ecf460caa6cb85514cba437fb1c0d3ac3f3ee35", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.30
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]    Compiling num-traits v0.1.40
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling matches v0.1.6
[INFO] [stderr]    Compiling lazy_static v0.2.8
[INFO] [stderr]    Compiling unicode-normalization v0.1.5
[INFO] [stderr]    Compiling byteorder v1.1.0
[INFO] [stderr]    Compiling safemem v0.2.0
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]    Compiling percent-encoding v1.0.0
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling httparse v1.2.3
[INFO] [stderr]    Compiling modifier v0.1.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling itoa v0.1.1
[INFO] [stderr]    Compiling gcc v0.3.53
[INFO] [stderr]    Compiling dtoa v0.2.2
[INFO] [stderr]    Compiling serde v1.0.11
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling itoa v0.3.3
[INFO] [stderr]    Compiling buf_redux v0.3.0
[INFO] [stderr]    Compiling linked-hash-map v0.4.2
[INFO] [stderr]    Compiling pest v0.3.3
[INFO] [stderr]    Compiling quick-error v1.2.0
[INFO] [stderr]    Compiling same-file v0.1.3
[INFO] [stderr]    Compiling route-recognizer v0.1.12
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling error v0.1.9
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling lru-cache v0.1.1
[INFO] [stderr]    Compiling walkdir v1.0.7
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling plugin v0.2.6
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling base64 v0.6.0
[INFO] [stderr]    Compiling rand v0.3.16
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling num_cpus v1.6.2
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling num-integer v0.1.35
[INFO] [stderr]    Compiling serde_json v0.8.6
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling num-iter v0.1.34
[INFO] [stderr]    Compiling libsqlite3-sys v0.8.1
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]    Compiling idna v0.1.4
[INFO] [stderr]    Compiling phf v0.7.21
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling mime_guess v1.8.2
[INFO] [stderr]    Compiling url v1.5.1
[INFO] [stderr] error: failed to run custom build command for `mime_guess v1.8.2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/mime_guess-e30879d5ee318a63/build-script-gen_mime_types` (exit status: 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-1.8.2/src/gen_mime_types.rs:22:67
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5619f794b8d0 - std::backtrace_rs::backtrace::libunwind::trace::hdcf4f90f85129e83
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x5619f794b8d0 - std::backtrace_rs::backtrace::trace_unsynchronized::h2669e30cb82f6732
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5619f794b8d0 - std::sys_common::backtrace::_print_fmt::hfbda19e17f6db318
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x5619f794b8d0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1a8751bf59281272
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x5619f7965d3f - core::fmt::write::h7aa6cd0067dca82a
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/core/src/fmt/mod.rs:1094:17
[INFO] [stderr]      5:     0x5619f794a1b5 - std::io::Write::write_fmt::hd7dd3a1df9b6befb
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/io/mod.rs:1584:15
[INFO] [stderr]      6:     0x5619f794d50b - std::sys_common::backtrace::_print::h551e9ec8a9fa8106
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x5619f794d50b - std::sys_common::backtrace::print::ha4b1c5e95fa040b3
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x5619f794d50b - std::panicking::default_hook::{{closure}}::h0b34c9ab7fb9f857
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x5619f794cfed - std::panicking::default_hook::h3067e8318decd17a
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x5619f794dabd - std::panicking::rust_panic_with_hook::h81b8facc50f34daa
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/panicking.rs:591:17
[INFO] [stderr]     11:     0x5619f794d6b7 - std::panicking::begin_panic_handler::{{closure}}::ha376ab85d95a000e
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/panicking.rs:497:13
[INFO] [stderr]     12:     0x5619f794bd8c - std::sys_common::backtrace::__rust_end_short_backtrace::h6795c8afdd1a77e6
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x5619f794d619 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/panicking.rs:493:5
[INFO] [stderr]     14:     0x5619f78f5ec1 - core::panicking::panic_fmt::hbe99dddd3092ba3c
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x5619f78f5f53 - core::result::unwrap_failed::hf79563fef9d11ab8
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/core/src/result.rs:1355:5
[INFO] [stderr]     16:     0x5619f790b55a - core::result::Result<T,E>::unwrap::hbd6ae50218285be5
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/core/src/result.rs:1037:23
[INFO] [stderr]     17:     0x5619f792e19b - build_script_gen_mime_types::main::h5f56c1a3823ebfc7
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-1.8.2/src/gen_mime_types.rs:22:38
[INFO] [stderr]     18:     0x5619f790a19b - core::ops::function::FnOnce::call_once::hc3bf3cade0cf10fd
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x5619f792444e - std::sys_common::backtrace::__rust_begin_short_backtrace::hcc2bc7dd3f120f80
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     20:     0x5619f7909ec1 - std::rt::lang_start::{{closure}}::h477d0092ae705486
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/rt.rs:49:18
[INFO] [stderr]     21:     0x5619f794deba - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h3b8c329143d7638a
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x5619f794deba - std::panicking::try::do_call::h4b72c261b4eefc1b
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/panicking.rs:379:40
[INFO] [stderr]     23:     0x5619f794deba - std::panicking::try::h703d31b7896cbd49
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/panicking.rs:343:19
[INFO] [stderr]     24:     0x5619f794deba - std::panic::catch_unwind::h37cad9b35388a915
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/panic.rs:431:14
[INFO] [stderr]     25:     0x5619f794deba - std::rt::lang_start_internal::hab5a8a909af4f90e
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/rt.rs:34:21
[INFO] [stderr]     26:     0x5619f7909ea0 - std::rt::lang_start::hca35969b9e99e067
[INFO] [stderr]                                  at /rustc/881c1ac408d93bb7adaa3a51dabab9266e82eee8/library/std/src/rt.rs:48:5
[INFO] [stderr]     27:     0x5619f792f87c - main
[INFO] [stderr]     28:     0x7f98e52e20b3 - __libc_start_main
[INFO] [stderr]     29:     0x5619f78f65be - _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-1.5.1/src/form_urlencoded.rs:251:40
[INFO] [stdout]     |
[INFO] [stdout] 249 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stdout]     |      -- lifetime `'a` defined here
[INFO] [stdout] 250 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stdout] 251 |     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" "d96ccf623d4835accd19b10d8ecf460caa6cb85514cba437fb1c0d3ac3f3ee35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d96ccf623d4835accd19b10d8ecf460caa6cb85514cba437fb1c0d3ac3f3ee35", kill_on_drop: false }`
[INFO] [stdout] d96ccf623d4835accd19b10d8ecf460caa6cb85514cba437fb1c0d3ac3f3ee35
