[INFO] cloning repository https://github.com/calebsauder/caleb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/calebsauder/caleb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcalebsauder%2Fcaleb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcalebsauder%2Fcaleb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1fcdc1b1c591a9f7106bf33e41f2b86d229e03a1
[INFO] checking calebsauder/caleb against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcalebsauder%2Fcaleb" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/calebsauder/caleb on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/calebsauder/caleb
[INFO] finished tweaking git repo https://github.com/calebsauder/caleb
[INFO] tweaked toml for git repo https://github.com/calebsauder/caleb written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/calebsauder/caleb already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a5f59276a6e297508d07d6376d1009f6a60020dc0c5a733f0f9019d7b8e7b49
[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" "1a5f59276a6e297508d07d6376d1009f6a60020dc0c5a733f0f9019d7b8e7b49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a5f59276a6e297508d07d6376d1009f6a60020dc0c5a733f0f9019d7b8e7b49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a5f59276a6e297508d07d6376d1009f6a60020dc0c5a733f0f9019d7b8e7b49", kill_on_drop: false }`
[INFO] [stdout] 1a5f59276a6e297508d07d6376d1009f6a60020dc0c5a733f0f9019d7b8e7b49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b6df697c3e1cf7463a1d6142844dcc7bb8ef53fb01797848791f1c1e03f535f
[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" "5b6df697c3e1cf7463a1d6142844dcc7bb8ef53fb01797848791f1c1e03f535f", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking matches v0.1.6
[INFO] [stderr]     Checking unicode-normalization v0.1.5
[INFO] [stderr]     Checking num-traits v0.2.0
[INFO] [stderr]     Checking httparse v1.2.4
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking sequence_trie v0.3.5
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.4.2
[INFO] [stderr]     Checking ascii v0.8.6
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking route-recognizer v0.1.12
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking tokio-timer v0.1.2
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking atty v0.2.6
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking idna v0.1.4
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking buf_redux v0.6.3
[INFO] [stderr]     Checking bytes v0.4.6
[INFO] [stderr]     Checking clap v2.30.0
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]    Compiling libdbus-sys v0.1.2
[INFO] [stderr]     Checking remove_dir_all v0.3.0
[INFO] [stderr]     Checking regex v0.2.6
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]     Checking tempdir v0.3.6
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]     Checking nix v0.10.0
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]     Checking phf v0.7.21
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]     Checking url v1.7.0
[INFO] [stderr]    Compiling mime_guess v1.8.3
[INFO] [stderr]     Checking dbus v0.5.4
[INFO] [stderr]     Checking num-bigint v0.1.43
[INFO] [stderr]     Checking num-complex v0.1.42
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking serde_json v1.0.9
[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-1.7.0/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] [stderr] error: could not compile `url` due to 2 previous errors
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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" "5b6df697c3e1cf7463a1d6142844dcc7bb8ef53fb01797848791f1c1e03f535f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b6df697c3e1cf7463a1d6142844dcc7bb8ef53fb01797848791f1c1e03f535f", kill_on_drop: false }`
[INFO] [stdout] 5b6df697c3e1cf7463a1d6142844dcc7bb8ef53fb01797848791f1c1e03f535f