[INFO] updating cached repository https://github.com/LU15W1R7H/crawler
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/LU15W1R7H/crawler
[INFO] [stderr]    bb90663..5e8c6fb  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5e8c6fb527161612950ce1d9d54c7b997b3f3150
[INFO] checking LU15W1R7H/crawler against try#3ae4c050387df9f7fbb379ee90ce8bf05e566870 for pr-70872
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLU15W1R7H%2Fcrawler" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LU15W1R7H/crawler on toolchain 3ae4c050387df9f7fbb379ee90ce8bf05e566870
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/LU15W1R7H/crawler
[INFO] finished tweaking git repo https://github.com/LU15W1R7H/crawler
[INFO] tweaked toml for git repo https://github.com/LU15W1R7H/crawler written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/LU15W1R7H/crawler already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 29ee7da8b2bda100e57804a333954645eb92edff9173ea2bfee7b355eb3be99f
[INFO] running `"docker" "start" "-a" "29ee7da8b2bda100e57804a333954645eb92edff9173ea2bfee7b355eb3be99f"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling siphasher v0.3.1
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]    Compiling curl v0.4.26
[INFO] [stderr]    Compiling isahc v0.8.2
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.3
[INFO] [stderr]    Compiling curl-sys v0.4.28+curl-7.69.0
[INFO] [stderr]     Checking libz-sys v1.0.25
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking async-task v1.3.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking string_cache v0.8.0
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking kv-log-macro v1.0.4
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking mio-uds v0.6.7
[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]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]    Compiling markup5ever v0.10.0
[INFO] [stderr]     Checking sluice v0.5.2
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking http-client v1.1.1
[INFO] [stderr]     Checking surf v2.0.0-alpha.0
[INFO] [stderr]     Checking crawler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `task`
[INFO] [stderr]    --> src/main.rs:251:9
[INFO] [stderr]     |
[INFO] [stderr] 251 |         task::block_on(async {
[INFO] [stderr]     |         ^^^^ use of undeclared type or module `task`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Url`
[INFO] [stderr]    --> src/main.rs:252:29
[INFO] [stderr]     |
[INFO] [stderr] 252 |             let urls = vec![Url::parse("https://www.rust-lang.org").unwrap()];
[INFO] [stderr]     |                             ^^^ use of undeclared type or module `Url`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `box_crawl` in this scope
[INFO] [stderr]    --> src/main.rs:253:13
[INFO] [stderr]     |
[INFO] [stderr] 253 |             box_crawl(urls, 1, 2).await.unwrap();
[INFO] [stderr]     |             ^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0698]: type inside `async` block must be known in this context
[INFO] [stderr]    --> src/main.rs:253:29
[INFO] [stderr]     |
[INFO] [stderr] 253 |             box_crawl(urls, 1, 2).await.unwrap();
[INFO] [stderr]     |                             ^ cannot infer type for type `{integer}`
[INFO] [stderr]     |
[INFO] [stderr] note: the type is part of the `async` block because of this `await`
[INFO] [stderr]    --> src/main.rs:253:13
[INFO] [stderr]     |
[INFO] [stderr] 253 |             box_crawl(urls, 1, 2).await.unwrap();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0698]: type inside `async` block must be known in this context
[INFO] [stderr]    --> src/main.rs:253:32
[INFO] [stderr]     |
[INFO] [stderr] 253 |             box_crawl(urls, 1, 2).await.unwrap();
[INFO] [stderr]     |                                ^ cannot infer type for type `{integer}`
[INFO] [stderr]     |
[INFO] [stderr] note: the type is part of the `async` block because of this `await`
[INFO] [stderr]    --> src/main.rs:253:13
[INFO] [stderr]     |
[INFO] [stderr] 253 |             box_crawl(urls, 1, 2).await.unwrap();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0433, E0698.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[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 `"docker" "inspect" "29ee7da8b2bda100e57804a333954645eb92edff9173ea2bfee7b355eb3be99f"`
[INFO] running `"docker" "rm" "-f" "29ee7da8b2bda100e57804a333954645eb92edff9173ea2bfee7b355eb3be99f"`
[INFO] [stdout] 29ee7da8b2bda100e57804a333954645eb92edff9173ea2bfee7b355eb3be99f