[INFO] cloning repository https://github.com/mozilla-services/rustbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mozilla-services/rustbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmozilla-services%2Frustbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmozilla-services%2Frustbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa13988acbf9e4ef2712708530d088282b360ba6
[INFO] checking mozilla-services/rustbox against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmozilla-services%2Frustbox" "/workspace/builds/worker-51/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-51/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mozilla-services/rustbox on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mozilla-services/rustbox
[INFO] finished tweaking git repo https://github.com/mozilla-services/rustbox
[INFO] tweaked toml for git repo https://github.com/mozilla-services/rustbox written to /workspace/builds/worker-51/source/Cargo.toml
[INFO] crate git repo https://github.com/mozilla-services/rustbox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rusoto_core v0.32.0
[INFO] [stderr]   Downloaded rusoto_credential v0.11.0
[INFO] [stderr]   Downloaded proc-macro2 v0.4.4
[INFO] [stderr]   Downloaded diesel_migrations v1.2.0
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[INFO] [stderr]   Downloaded migrations_macros v1.2.0
[INFO] [stderr]   Downloaded futures-stable v0.2.1
[INFO] [stderr]   Downloaded futures v0.2.1
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[INFO] [stderr]   Downloaded mysql_common v0.7.0
[INFO] [stderr]   Downloaded rusoto_sqs v0.32.0
[INFO] [stderr]   Downloaded futures-executor v0.2.1
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[INFO] [stderr]   Downloaded mysql v13.1.0
[INFO] [stderr]   Downloaded syn v0.14.1
[INFO] [stderr]   Downloaded named_pipe v0.3.0
[INFO] [stderr]   Downloaded rand v0.5.0
[INFO] [stderr]   Downloaded serde_derive v1.0.64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18366a20874df1e0edc3cf463878ef16334323d3b0f80e1652f55eb54babc279
[INFO] running `Command { std: "docker" "start" "-a" "18366a20874df1e0edc3cf463878ef16334323d3b0f80e1652f55eb54babc279", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18366a20874df1e0edc3cf463878ef16334323d3b0f80e1652f55eb54babc279", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18366a20874df1e0edc3cf463878ef16334323d3b0f80e1652f55eb54babc279", kill_on_drop: false }`
[INFO] [stdout] 18366a20874df1e0edc3cf463878ef16334323d3b0f80e1652f55eb54babc279
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91a8b699d42984370ad73cb2442de6f5d7decbb9cf93207b1418ba90af349f4c
[INFO] running `Command { std: "docker" "start" "-a" "91a8b699d42984370ad73cb2442de6f5d7decbb9cf93207b1418ba90af349f4c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.41
[INFO] [stderr]     Checking cfg-if v0.1.3
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]     Checking lazy_static v1.0.1
[INFO] [stderr]     Checking futures v0.1.21
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]    Compiling cc v1.0.17
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[INFO] [stderr]     Checking nodrop v0.1.12
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[INFO] [stderr]     Checking take v0.1.0
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking smallvec v0.2.1
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]    Compiling antidote v1.0.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling build_const v0.2.1
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[INFO] [stderr]     Checking arrayref v0.3.4
[INFO] [stderr]     Checking smallvec v0.6.1
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[INFO] [stderr]    Compiling unicase v2.1.0
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[INFO] [stderr]     Checking foreign-types v0.3.2
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[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling num_cpus v1.8.0
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[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling isatty v0.1.8
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling crc v1.8.1
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[INFO] [stderr]    Compiling quote v0.4.2
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[INFO] [stderr]     Checking iovec v0.1.2
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[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]     Checking futures-core v0.2.1
[INFO] [stderr]     Checking base64 v0.9.2
[INFO] [stderr]    Compiling pear_codegen v0.0.17
[INFO] [stderr]    Compiling rocket v0.3.12
[INFO] [stderr]    Compiling base64 v0.6.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking regex-syntax v0.6.0
[INFO] [stderr]    Compiling rocket_codegen v0.3.12
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking encoding_rs v0.7.2
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking slog-scope v4.0.1
[INFO] [stderr]     Checking rand v0.5.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking idna v0.1.4
[INFO] [stderr]    Compiling rustc_version v0.2.2
[INFO] [stderr]     Checking tokio-executor v0.1.2
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking relay v0.1.1
[INFO] [stderr]     Checking want v0.0.4
[INFO] [stderr]    Compiling openssl-sys v0.9.31
[INFO] [stderr]    Compiling mysqlclient-sys v0.2.3
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling r2d2 v0.8.2
[INFO] [stderr]    Compiling syn v0.14.1
[INFO] [stderr]     Checking bytes v0.4.8
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking tokio-timer v0.2.3
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking crossbeam-epoch v0.4.1
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking slog-stdlog v3.0.2
[INFO] [stderr]     Checking futures-channel v0.2.1
[INFO] [stderr]     Checking futures-io v0.2.1
[INFO] [stderr]     Checking url v1.7.0
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking mio v0.6.14
[INFO] [stderr]    Compiling rusoto_core v0.32.0
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking crossbeam-deque v0.3.1
[INFO] [stderr]     Checking mime v0.3.7
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.12.15/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="quote"' -C metadata=cf19b965e1d40295 -C extra-filename=-cf19b965e1d40295 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-64b908ed6cb905bc.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-d865677c8aef450d.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-17df5e5ca0bb5bda.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[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-1.7.0/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 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" "91a8b699d42984370ad73cb2442de6f5d7decbb9cf93207b1418ba90af349f4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91a8b699d42984370ad73cb2442de6f5d7decbb9cf93207b1418ba90af349f4c", kill_on_drop: false }`
[INFO] [stdout] 91a8b699d42984370ad73cb2442de6f5d7decbb9cf93207b1418ba90af349f4c