[INFO] cloning repository https://github.com/garebareDA/web_browser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/garebareDA/web_browser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FgarebareDA%2Fweb_browser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FgarebareDA%2Fweb_browser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d3e27881c4966a05f7d9defcaa1040d7fe68039e
[INFO] checking garebareDA/web_browser against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FgarebareDA%2Fweb_browser" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/garebareDA/web_browser
[INFO] finished tweaking git repo https://github.com/garebareDA/web_browser
[INFO] tweaked toml for git repo https://github.com/garebareDA/web_browser written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/garebareDA/web_browser on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/garebareDA/web_browser 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f0bd77a42eaeb94be147303eaa71c218e04176e6e0067ef30b23f1c6392fd98
[INFO] running `Command { std: "docker" "start" "-a" "4f0bd77a42eaeb94be147303eaa71c218e04176e6e0067ef30b23f1c6392fd98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f0bd77a42eaeb94be147303eaa71c218e04176e6e0067ef30b23f1c6392fd98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f0bd77a42eaeb94be147303eaa71c218e04176e6e0067ef30b23f1c6392fd98", kill_on_drop: false }`
[INFO] [stdout] 4f0bd77a42eaeb94be147303eaa71c218e04176e6e0067ef30b23f1c6392fd98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1378857401f7b8454dbfda873d885186b130554dbcac5d7dfb818493794da6e9
[INFO] running `Command { std: "docker" "start" "-a" "1378857401f7b8454dbfda873d885186b130554dbcac5d7dfb818493794da6e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]     Checking smallvec v1.0.0
[INFO] [stderr]     Checking untrusted v0.7.0
[INFO] [stderr]    Compiling gio v0.7.0
[INFO] [stderr]    Compiling cairo-rs v0.7.1
[INFO] [stderr]    Compiling pango v0.7.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking fragile v0.3.0
[INFO] [stderr]    Compiling gdk-pixbuf v0.7.0
[INFO] [stderr]    Compiling gdk v0.11.0
[INFO] [stderr]    Compiling atk v0.7.0
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling gtk v0.7.0
[INFO] [stderr]     Checking qstring v0.7.0
[INFO] [stderr]     Checking chunked_transfer v1.0.0
[INFO] [stderr]     Checking unicode-normalization v0.1.11
[INFO] [stderr]    Compiling glib-sys v0.9.0
[INFO] [stderr]    Compiling gobject-sys v0.9.0
[INFO] [stderr]    Compiling gio-sys v0.9.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.9.0
[INFO] [stderr]    Compiling pango-sys v0.9.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.9.0
[INFO] [stderr]    Compiling gdk-sys v0.9.0
[INFO] [stderr]    Compiling atk-sys v0.9.0
[INFO] [stderr]    Compiling gtk-sys v0.9.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]    Compiling ring v0.16.9
[INFO] [stderr]     Checking glib v0.8.2
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking webpki v0.21.0
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki-roots v0.18.0
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]     Checking ureq v0.11.2
[INFO] [stderr]     Checking web_browser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::add`
[INFO] [stdout]  --> src/ui/text_tag.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use super::add;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `web_browser` (lib) due to 1 previous error; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `web_browser` (lib test) due to 1 previous error; 4 warnings emitted
[INFO] [stdout] warning: unused import: `crate::html_parser::structs::Html`
[INFO] [stdout]   --> src/ui/text_tag.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::html_parser::structs::Html;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::add`
[INFO] [stdout]  --> src/ui/text_tag.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use super::add;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::html_parser::structs::Html`
[INFO] [stdout]   --> src/ui/text_tag.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::html_parser::structs::Html;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/ui/image_tag.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 resp.read_exact(&mut buf);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 let _ = resp.read_exact(&mut buf);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/ui/image_tag.rs:47:17
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 image_file.write_all(&mut buf);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 let _ = image_file.write_all(&mut buf);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/ui/text_tag.rs:65:20
[INFO] [stdout]    |
[INFO] [stdout] 65 |             href = attr[index].contents.parse().unwrap();
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/ui/image_tag.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 resp.read_exact(&mut buf);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 let _ = resp.read_exact(&mut buf);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/ui/image_tag.rs:47:17
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 image_file.write_all(&mut buf);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 let _ = image_file.write_all(&mut buf);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/ui/text_tag.rs:65:20
[INFO] [stdout]    |
[INFO] [stdout] 65 |             href = attr[index].contents.parse().unwrap();
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1378857401f7b8454dbfda873d885186b130554dbcac5d7dfb818493794da6e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1378857401f7b8454dbfda873d885186b130554dbcac5d7dfb818493794da6e9", kill_on_drop: false }`
[INFO] [stdout] 1378857401f7b8454dbfda873d885186b130554dbcac5d7dfb818493794da6e9