[INFO] cloning repository https://github.com/tobybot11/react_rust_webapp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tobybot11/react_rust_webapp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftobybot11%2Freact_rust_webapp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftobybot11%2Freact_rust_webapp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 481a7cad9c8a8ce96af18b22c78795943febf5b8
[INFO] checking tobybot11/react_rust_webapp against master#c3def263a44e07e09ae6d57abfc8650227fb4972 for pr-118920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftobybot11%2Freact_rust_webapp" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tobybot11/react_rust_webapp on toolchain c3def263a44e07e09ae6d57abfc8650227fb4972
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tobybot11/react_rust_webapp
[INFO] finished tweaking git repo https://github.com/tobybot11/react_rust_webapp
[INFO] tweaked toml for git repo https://github.com/tobybot11/react_rust_webapp written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tobybot11/react_rust_webapp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking tobybot11/react_rust_webapp against try#3931cbb869e499bf6db1e4d580cc247efbf183df for pr-118920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftobybot11%2Freact_rust_webapp" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tobybot11/react_rust_webapp on toolchain 3931cbb869e499bf6db1e4d580cc247efbf183df
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3931cbb869e499bf6db1e4d580cc247efbf183df" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tobybot11/react_rust_webapp
[INFO] finished tweaking git repo https://github.com/tobybot11/react_rust_webapp
[INFO] tweaked toml for git repo https://github.com/tobybot11/react_rust_webapp written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tobybot11/react_rust_webapp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3931cbb869e499bf6db1e4d580cc247efbf183df" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded filetime v0.1.15
[INFO] [stderr]   Downloaded build_const v0.2.0
[INFO] [stderr]   Downloaded mime_guess v1.8.4
[INFO] [stderr]   Downloaded url v0.2.38
[INFO] [stderr]   Downloaded sha1 v0.2.0
[INFO] [stderr]   Downloaded adler32 v1.0.2
[INFO] [stderr]   Downloaded crc v1.7.0
[INFO] [stderr]   Downloaded num-iter v0.1.35
[INFO] [stderr]   Downloaded gzip-header v0.1.2
[INFO] [stderr]   Downloaded uuid v0.1.18
[INFO] [stderr]   Downloaded time v0.1.39
[INFO] [stderr]   Downloaded tiny_http v0.5.9
[INFO] [stderr]   Downloaded rouille v2.1.0
[INFO] [stderr]   Downloaded idna v0.1.4
[INFO] [stderr]   Downloaded brotli-sys v0.2.1
[INFO] [stderr]   Downloaded unicode-normalization v0.1.5
[INFO] [stderr]   Downloaded url v1.7.0
[INFO] [stderr]   Downloaded serde_json v1.0.13
[INFO] [stderr]   Downloaded chrono v0.4.1
[INFO] [stderr]   Downloaded deflate v0.7.18
[INFO] [stderr]   Downloaded num-traits v0.2.2
[INFO] [stderr]   Downloaded term v0.2.14
[INFO] [stderr]   Downloaded num-integer v0.1.36
[INFO] [stderr]   Downloaded base64 v0.7.0
[INFO] [stderr]   Downloaded ascii v0.7.1
[INFO] [stderr]   Downloaded brotli2 v0.2.2
[INFO] [stderr]   Downloaded proc-macro2 v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3931cbb869e499bf6db1e4d580cc247efbf183df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25e6efd2fe2ce88a2994f0df26d79288a09bb836148381d878c00b5f3cceb1d6
[INFO] running `Command { std: "docker" "start" "-a" "25e6efd2fe2ce88a2994f0df26d79288a09bb836148381d878c00b5f3cceb1d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25e6efd2fe2ce88a2994f0df26d79288a09bb836148381d878c00b5f3cceb1d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25e6efd2fe2ce88a2994f0df26d79288a09bb836148381d878c00b5f3cceb1d6", kill_on_drop: false }`
[INFO] [stdout] 25e6efd2fe2ce88a2994f0df26d79288a09bb836148381d878c00b5f3cceb1d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3931cbb869e499bf6db1e4d580cc247efbf183df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 620d65c7d8cec2083fb87bd48cd32589201e6758bf7ff18f28406abe7ac0f5cf
[INFO] running `Command { std: "docker" "start" "-a" "620d65c7d8cec2083fb87bd48cd32589201e6758bf7ff18f28406abe7ac0f5cf", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]     Checking matches v0.1.6
[INFO] [stderr]    Compiling build_const v0.2.0
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking remove_dir_all v0.5.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.3
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]    Compiling crc v1.7.0
[INFO] [stderr]     Checking byteorder v1.2.2
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking unicode-normalization v0.1.5
[INFO] [stderr]     Checking buf_redux v0.6.3
[INFO] [stderr]     Checking encoding v0.2.33
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking ascii v0.7.1
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking serde v1.0.37
[INFO] [stderr]     Checking adler32 v1.0.2
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]     Checking chunked_transfer v0.3.1
[INFO] [stderr]     Checking itoa v0.4.1
[INFO] [stderr]     Checking httparse v1.2.4
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking term v0.2.14
[INFO] [stderr]     Checking idna v0.1.4
[INFO] [stderr]     Checking phf v0.7.21
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]     Checking chrono v0.4.1
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking base64 v0.7.0
[INFO] [stderr]     Checking filetime v0.1.15
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking gzip-header v0.1.2
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]    Compiling brotli-sys v0.2.1
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling mime_guess v1.8.4
[INFO] [stderr]     Checking url v1.7.0
[INFO] [stderr]     Checking uuid v0.1.18
[INFO] [stderr]     Checking url v0.2.38
[INFO] [stdout] error[E0713]: borrow may still be in use when destructor runs
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/url-1.7.0/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 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0713`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `url` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "620d65c7d8cec2083fb87bd48cd32589201e6758bf7ff18f28406abe7ac0f5cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "620d65c7d8cec2083fb87bd48cd32589201e6758bf7ff18f28406abe7ac0f5cf", kill_on_drop: false }`
[INFO] [stdout] 620d65c7d8cec2083fb87bd48cd32589201e6758bf7ff18f28406abe7ac0f5cf