[INFO] cloning repository https://github.com/BoningtonChen/link_crawler [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BoningtonChen/link_crawler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBoningtonChen%2Flink_crawler", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBoningtonChen%2Flink_crawler'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 51f12e476eb4d3a8ebaf50dfe34f95ec938b158a [INFO] testing BoningtonChen/link_crawler against 1.75.0 for beta-1.76-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBoningtonChen%2Flink_crawler" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/BoningtonChen/link_crawler on toolchain 1.75.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/BoningtonChen/link_crawler [INFO] finished tweaking git repo https://github.com/BoningtonChen/link_crawler [INFO] tweaked toml for git repo https://github.com/BoningtonChen/link_crawler written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/BoningtonChen/link_crawler already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded debug_unreachable v0.1.1 [INFO] [stderr] Downloaded unreachable v0.1.1 [INFO] [stderr] Downloaded html5ever v0.21.0 [INFO] [stderr] Downloaded url v0.2.38 [INFO] [stderr] Downloaded string_cache v0.6.2 [INFO] [stderr] Downloaded markup5ever v0.6.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6edcc033b4e4b86832da99ea0e57d35d17e576d54d8327f5f23758d1a5dba284 [INFO] running `Command { std: "docker" "start" "-a" "6edcc033b4e4b86832da99ea0e57d35d17e576d54d8327f5f23758d1a5dba284", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6edcc033b4e4b86832da99ea0e57d35d17e576d54d8327f5f23758d1a5dba284", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6edcc033b4e4b86832da99ea0e57d35d17e576d54d8327f5f23758d1a5dba284", kill_on_drop: false }` [INFO] [stdout] 6edcc033b4e4b86832da99ea0e57d35d17e576d54d8327f5f23758d1a5dba284 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 97bdfc0ba57b58b0e8a833d295c7d1ced0ad799c6972505c6c08ef8d97a92a2a [INFO] running `Command { std: "docker" "start" "-a" "97bdfc0ba57b58b0e8a833d295c7d1ced0ad799c6972505c6c08ef8d97a92a2a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling siphasher v0.2.3 [INFO] [stderr] Compiling proc-macro2 v1.0.49 [INFO] [stderr] Compiling unicode-ident v1.0.6 [INFO] [stderr] Compiling quote v1.0.23 [INFO] [stderr] Compiling string_cache_shared v0.3.0 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling tinyvec_macros v0.1.0 [INFO] [stderr] Compiling serde v1.0.152 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Compiling new_debug_unreachable v1.0.4 [INFO] [stderr] Compiling mac v0.1.1 [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Compiling unreachable v0.1.1 [INFO] [stderr] Compiling matches v0.1.9 [INFO] [stderr] Compiling futf v0.1.5 [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Compiling tinyvec v1.6.0 [INFO] [stderr] Compiling debug_unreachable v0.1.1 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling lazy_static v0.2.11 [INFO] [stderr] Compiling unicode-bidi v0.3.8 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling autocfg v0.1.8 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Compiling httparse v1.8.0 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling utf-8 v0.7.6 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Compiling phf v0.7.24 [INFO] [stderr] Compiling safemem v0.3.3 [INFO] [stderr] Compiling tendril v0.4.3 [INFO] [stderr] Compiling byteorder v1.4.3 [INFO] [stderr] Compiling traitobject v0.1.0 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling log v0.3.9 [INFO] [stderr] Compiling base64 v0.9.3 [INFO] [stderr] Compiling mime v0.2.6 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling time v0.1.45 [INFO] [stderr] Compiling num_cpus v1.15.0 [INFO] [stderr] Compiling unicode-normalization v0.1.22 [INFO] [stderr] Compiling idna v0.1.5 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling uuid v0.1.18 [INFO] [stderr] Compiling url v0.2.38 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling url v1.7.2 [INFO] [stderr] Compiling string_cache_codegen v0.4.4 [INFO] [stderr] Compiling phf_codegen v0.7.24 [INFO] [stderr] Compiling string_cache v0.6.2 [INFO] [stderr] Compiling markup5ever v0.6.2 [INFO] [stderr] Compiling hyper v0.10.16 [INFO] [stderr] Compiling html5ever v0.21.0 [INFO] [stderr] Compiling link_crawler v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `format` [INFO] [stdout] --> src/fetch.rs:9:16 [INFO] [stdout] | [INFO] [stdout] 9 | use std::fmt::{format, Formatter}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `hyper::header::parsing` [INFO] [stdout] --> src/fetch.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | use hyper::header::parsing; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `url::form_urlencoded::parse` [INFO] [stdout] --> src/fetch.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use url::form_urlencoded::parse; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/crawler.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::Deref` [INFO] [stdout] --> src/crawler.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::ops::Deref; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rx` [INFO] [stdout] --> src/fetch.rs:60:13 [INFO] [stdout] | [INFO] [stdout] 60 | let (tx, rx) = channel(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_rx` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tx` [INFO] [stdout] --> src/fetch.rs:85:9 [INFO] [stdout] | [INFO] [stdout] 85 | let (tx, rx) = channel(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `url_string` [INFO] [stdout] --> src/fetch.rs:94:6 [INFO] [stdout] | [INFO] [stdout] 94 | let url_string = url.serialize(); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_url_string` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 18.01s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: html5ever v0.21.0, rustc-serialize v0.3.24, traitobject v0.1.0 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "97bdfc0ba57b58b0e8a833d295c7d1ced0ad799c6972505c6c08ef8d97a92a2a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "97bdfc0ba57b58b0e8a833d295c7d1ced0ad799c6972505c6c08ef8d97a92a2a", kill_on_drop: false }` [INFO] [stdout] 97bdfc0ba57b58b0e8a833d295c7d1ced0ad799c6972505c6c08ef8d97a92a2a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2a27787f4ff7a9c3330fc16b17632175ae58ca90015b2b71c003e96ebc4d7382 [INFO] running `Command { std: "docker" "start" "-a" "2a27787f4ff7a9c3330fc16b17632175ae58ca90015b2b71c003e96ebc4d7382", kill_on_drop: false }` [INFO] [stderr] Compiling link_crawler v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `format` [INFO] [stdout] --> src/fetch.rs:9:16 [INFO] [stdout] | [INFO] [stdout] 9 | use std::fmt::{format, Formatter}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `hyper::header::parsing` [INFO] [stdout] --> src/fetch.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | use hyper::header::parsing; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `url::form_urlencoded::parse` [INFO] [stdout] --> src/fetch.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use url::form_urlencoded::parse; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/crawler.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::Deref` [INFO] [stdout] --> src/crawler.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::ops::Deref; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rx` [INFO] [stdout] --> src/fetch.rs:60:13 [INFO] [stdout] | [INFO] [stdout] 60 | let (tx, rx) = channel(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_rx` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tx` [INFO] [stdout] --> src/fetch.rs:85:9 [INFO] [stdout] | [INFO] [stdout] 85 | let (tx, rx) = channel(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `url_string` [INFO] [stdout] --> src/fetch.rs:94:6 [INFO] [stdout] | [INFO] [stdout] 94 | let url_string = url.serialize(); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_url_string` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.65s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: html5ever v0.21.0, rustc-serialize v0.3.24, traitobject v0.1.0 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "2a27787f4ff7a9c3330fc16b17632175ae58ca90015b2b71c003e96ebc4d7382", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2a27787f4ff7a9c3330fc16b17632175ae58ca90015b2b71c003e96ebc4d7382", kill_on_drop: false }` [INFO] [stdout] 2a27787f4ff7a9c3330fc16b17632175ae58ca90015b2b71c003e96ebc4d7382 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 21d4e3ffd491d54af8ba7e7c9546b0ea465265f02ac81516ed216e190257c3b5 [INFO] running `Command { std: "docker" "start" "-a" "21d4e3ffd491d54af8ba7e7c9546b0ea465265f02ac81516ed216e190257c3b5", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `format` [INFO] [stderr] --> src/fetch.rs:9:16 [INFO] [stderr] | [INFO] [stderr] 9 | use std::fmt::{format, Formatter}; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `hyper::header::parsing` [INFO] [stderr] --> src/fetch.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | use hyper::header::parsing; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `url::form_urlencoded::parse` [INFO] [stderr] --> src/fetch.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | use url::form_urlencoded::parse; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::borrow::Borrow` [INFO] [stderr] --> src/crawler.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::borrow::Borrow; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Deref` [INFO] [stderr] --> src/crawler.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::ops::Deref; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `rx` [INFO] [stderr] --> src/fetch.rs:60:13 [INFO] [stderr] | [INFO] [stderr] 60 | let (tx, rx) = channel(); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_rx` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `tx` [INFO] [stderr] --> src/fetch.rs:85:9 [INFO] [stderr] | [INFO] [stderr] 85 | let (tx, rx) = channel(); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_tx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `url_string` [INFO] [stderr] --> src/fetch.rs:94:6 [INFO] [stderr] | [INFO] [stderr] 94 | let url_string = url.serialize(); [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_url_string` [INFO] [stderr] [INFO] [stderr] warning: `link_crawler` (bin "link_crawler" test) generated 8 warnings (run `cargo fix --bin "link_crawler" --tests` to apply 8 suggestions) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: html5ever v0.21.0, rustc-serialize v0.3.24, traitobject v0.1.0 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/link_crawler-5aef42acd6e2c8fc) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "21d4e3ffd491d54af8ba7e7c9546b0ea465265f02ac81516ed216e190257c3b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "21d4e3ffd491d54af8ba7e7c9546b0ea465265f02ac81516ed216e190257c3b5", kill_on_drop: false }` [INFO] [stdout] 21d4e3ffd491d54af8ba7e7c9546b0ea465265f02ac81516ed216e190257c3b5