[INFO] cloning repository https://github.com/scifiron/asyncrawler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scifiron/asyncrawler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscifiron%2Fasyncrawler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscifiron%2Fasyncrawler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b244b8390c921b2628e9b50e9907a40de8059af3
[INFO] checking scifiron/asyncrawler against try#e0f03aec47b100bc29555561bd62a99d1bc6aca5 for pr-86231
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscifiron%2Fasyncrawler" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/scifiron/asyncrawler on toolchain e0f03aec47b100bc29555561bd62a99d1bc6aca5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/scifiron/asyncrawler
[INFO] finished tweaking git repo https://github.com/scifiron/asyncrawler
[INFO] tweaked toml for git repo https://github.com/scifiron/asyncrawler written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/scifiron/asyncrawler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92722696fdd5e9c60a9dc551dbe2b2b763c9f760ac9be4b325157a96b3a0d680
[INFO] running `Command { std: "docker" "start" "-a" "92722696fdd5e9c60a9dc551dbe2b2b763c9f760ac9be4b325157a96b3a0d680", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92722696fdd5e9c60a9dc551dbe2b2b763c9f760ac9be4b325157a96b3a0d680", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92722696fdd5e9c60a9dc551dbe2b2b763c9f760ac9be4b325157a96b3a0d680", kill_on_drop: false }`
[INFO] [stdout] 92722696fdd5e9c60a9dc551dbe2b2b763c9f760ac9be4b325157a96b3a0d680
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a973b1d7f96e6e927ae3f3095d5288ef9f08a17fe04958955f0970a852e4285
[INFO] running `Command { std: "docker" "start" "-a" "4a973b1d7f96e6e927ae3f3095d5288ef9f08a17fe04958955f0970a852e4285", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling siphasher v0.3.5
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling openssl v0.10.34
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking encoding_rs v0.8.28
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking tendril v0.4.2
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling openssl-sys v0.9.62
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]     Checking string_cache v0.8.1
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling markup5ever v0.10.1
[INFO] [stderr]     Checking xml5ever v0.16.1
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking markup5ever_rcdom v0.1.0
[INFO] [stderr]     Checking select v0.5.0
[INFO] [stderr]     Checking tokio-util v0.6.6
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking tokio-stream v0.1.5
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]     Checking hyper v0.14.7
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.3
[INFO] [stderr]     Checking nightcrawler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:34:25
[INFO] [stdout]    |
[INFO] [stdout] 34 |                         sender.send(url).await;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:34:25
[INFO] [stdout]    |
[INFO] [stdout] 34 |                         sender.send(url).await;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.14s
[INFO] running `Command { std: "docker" "inspect" "4a973b1d7f96e6e927ae3f3095d5288ef9f08a17fe04958955f0970a852e4285", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a973b1d7f96e6e927ae3f3095d5288ef9f08a17fe04958955f0970a852e4285", kill_on_drop: false }`
[INFO] [stdout] 4a973b1d7f96e6e927ae3f3095d5288ef9f08a17fe04958955f0970a852e4285