[INFO] cloning repository https://github.com/Ozymandias9000/crawler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ozymandias9000/crawler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOzymandias9000%2Fcrawler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOzymandias9000%2Fcrawler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd1e198009aabbf680b398904e04ac91b16157b0
[INFO] checking Ozymandias9000/crawler against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOzymandias9000%2Fcrawler" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ozymandias9000/crawler on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Ozymandias9000/crawler
[INFO] finished tweaking git repo https://github.com/Ozymandias9000/crawler
[INFO] tweaked toml for git repo https://github.com/Ozymandias9000/crawler written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/Ozymandias9000/crawler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cfd03f20198c4dd19b0a2d2be28b9136cd3045df3ff69446e7def74fba809f5
[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" "6cfd03f20198c4dd19b0a2d2be28b9136cd3045df3ff69446e7def74fba809f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cfd03f20198c4dd19b0a2d2be28b9136cd3045df3ff69446e7def74fba809f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cfd03f20198c4dd19b0a2d2be28b9136cd3045df3ff69446e7def74fba809f5", kill_on_drop: false }`
[INFO] [stdout] 6cfd03f20198c4dd19b0a2d2be28b9136cd3045df3ff69446e7def74fba809f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d36a08231ee7cc47b55b84a652e8cf76b41e54397aae2645c2a10adf146e5936
[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" "d36a08231ee7cc47b55b84a652e8cf76b41e54397aae2645c2a10adf146e5936", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling siphasher v0.3.2
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling curl v0.4.28
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]    Compiling isahc v0.7.6
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking futures-timer v2.0.2
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.3
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking tendril v0.4.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking sluice v0.4.2
[INFO] [stderr]     Checking kv-log-macro v1.0.4
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling curl-sys v0.4.30+curl-7.69.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking async-task v1.3.1
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking async-std v1.5.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]     Checking string_cache v0.8.0
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]     Checking surf v1.0.3
[INFO] [stderr]    Compiling markup5ever v0.10.0
[INFO] [stderr]     Checking crawler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:125:5
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn main() -> () {
[INFO] [stdout]     |              -- expected `()` because of return type
[INFO] [stdout] 125 |     run()
[INFO] [stdout]     |     ^^^^^- help: try adding a semicolon: `;`
[INFO] [stdout]     |     |
[INFO] [stdout]     |     expected `()`, found enum `std::result::Result`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `std::result::Result<(), Box<(dyn std::error::Error + Send + Sync + 'static)>>`
[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 E0308`.
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:125:5
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn main() -> () {
[INFO] [stdout]     |              -- expected `()` because of return type
[INFO] [stdout] 125 |     run()
[INFO] [stdout]     |     ^^^^^- help: try adding a semicolon: `;`
[INFO] [stdout]     |     |
[INFO] [stdout]     |     expected `()`, found enum `std::result::Result`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `std::result::Result<(), Box<(dyn std::error::Error + Send + Sync + 'static)>>`
[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 E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crawler`
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d36a08231ee7cc47b55b84a652e8cf76b41e54397aae2645c2a10adf146e5936", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d36a08231ee7cc47b55b84a652e8cf76b41e54397aae2645c2a10adf146e5936", kill_on_drop: false }`
[INFO] [stdout] d36a08231ee7cc47b55b84a652e8cf76b41e54397aae2645c2a10adf146e5936