[INFO] cloning repository https://github.com/planet0104/webcam_demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/planet0104/webcam_demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplanet0104%2Fwebcam_demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplanet0104%2Fwebcam_demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 511f03174052d6cd33de2a12e70c4f4659404c99
[INFO] checking planet0104/webcam_demo against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplanet0104%2Fwebcam_demo" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/planet0104/webcam_demo on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/planet0104/webcam_demo
[INFO] finished tweaking git repo https://github.com/planet0104/webcam_demo
[INFO] tweaked toml for git repo https://github.com/planet0104/webcam_demo written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/planet0104/webcam_demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bcf10aae4c56f6e9e09202486e1023b5838ceb0dd73d4e7241361e65d3dfc866
[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" "bcf10aae4c56f6e9e09202486e1023b5838ceb0dd73d4e7241361e65d3dfc866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bcf10aae4c56f6e9e09202486e1023b5838ceb0dd73d4e7241361e65d3dfc866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcf10aae4c56f6e9e09202486e1023b5838ceb0dd73d4e7241361e65d3dfc866", kill_on_drop: false }`
[INFO] [stdout] bcf10aae4c56f6e9e09202486e1023b5838ceb0dd73d4e7241361e65d3dfc866
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 424300e9e2d2bcb563f061b422d6a656fc63c788acf19b35ae12740d6d9d095d
[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" "424300e9e2d2bcb563f061b422d6a656fc63c788acf19b35ae12740d6d9d095d", kill_on_drop: false }`
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling num-traits v0.1.41
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking httparse v1.2.3
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking lazycell v0.5.1
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking sequence_trie v0.2.1
[INFO] [stderr]     Checking route-recognizer v0.1.12
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]    Compiling rand v0.3.18
[INFO] [stderr]     Checking num_cpus v1.7.0
[INFO] [stderr]     Checking iovec v0.1.1
[INFO] [stderr]     Checking rscam v0.5.3
[INFO] [stderr]    Compiling clang-sys v0.15.2
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]     Checking conduit-mime-types v0.7.3
[INFO] [stderr]     Checking net2 v0.2.31
[INFO] [stderr]    Compiling syntex_errors v0.58.1
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]    Compiling clap v2.28.0
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking url v1.6.0
[INFO] [stderr]     Checking bytes v0.4.5
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling phf v0.7.21
[INFO] [stderr]    Compiling regex v0.2.3
[INFO] [stderr]     Checking mio v0.6.11
[INFO] [stderr]     Checking uuid v0.4.0
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling syntex_syntax v0.58.1
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[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: could not compile `url`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0423]: expected function, tuple struct or tuple variant, found struct `ast::Name`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syntex_syntax-0.58.1/src/symbol.rs:146:27
[INFO] [stdout]     |
[INFO] [stdout] 146 |                       name: ast::Name($index),
[INFO] [stdout]     |                             ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 165 | / declare_keywords! {
[INFO] [stdout] 166 | |     // Invalid identifier
[INFO] [stdout] 167 | |     (0,  Invalid,        "")
[INFO] [stdout] 168 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 231 | |     (56, CrateRoot, "{{root}}")
[INFO] [stdout] 232 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[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 E0423`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "424300e9e2d2bcb563f061b422d6a656fc63c788acf19b35ae12740d6d9d095d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "424300e9e2d2bcb563f061b422d6a656fc63c788acf19b35ae12740d6d9d095d", kill_on_drop: false }`
[INFO] [stdout] 424300e9e2d2bcb563f061b422d6a656fc63c788acf19b35ae12740d6d9d095d