[INFO] cloning repository https://github.com/zaki-yama/puppy-browser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zaki-yama/puppy-browser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzaki-yama%2Fpuppy-browser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzaki-yama%2Fpuppy-browser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 08011cfdc69c7a7ce3efb8dc2bf69ff3d508fc8e
[INFO] checking zaki-yama/puppy-browser against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzaki-yama%2Fpuppy-browser" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zaki-yama/puppy-browser on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zaki-yama/puppy-browser
[INFO] finished tweaking git repo https://github.com/zaki-yama/puppy-browser
[INFO] tweaked toml for git repo https://github.com/zaki-yama/puppy-browser written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/zaki-yama/puppy-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01a1ce4cc97e421de9484c4adb890b1fc1d34f397e47a4343a9e73ac73267f20
[INFO] running `Command { std: "docker" "start" "-a" "01a1ce4cc97e421de9484c4adb890b1fc1d34f397e47a4343a9e73ac73267f20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01a1ce4cc97e421de9484c4adb890b1fc1d34f397e47a4343a9e73ac73267f20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01a1ce4cc97e421de9484c4adb890b1fc1d34f397e47a4343a9e73ac73267f20", kill_on_drop: false }`
[INFO] [stdout] 01a1ce4cc97e421de9484c4adb890b1fc1d34f397e47a4343a9e73ac73267f20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49acd641686892a5e16b576f078323a450c9038332fae287379ef628bf10cd49
[INFO] running `Command { std: "docker" "start" "-a" "49acd641686892a5e16b576f078323a450c9038332fae287379ef628bf10cd49", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking bytes v1.3.0
[INFO] [stderr]     Checking combine v4.6.6
[INFO] [stderr]     Checking puppy-browser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Text` is imported redundantly
[INFO] [stdout]    --> src/html.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |     use crate::dom::Text;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 117 |
[INFO] [stdout] 118 |     use super::*;
[INFO] [stdout]     |         -------- the item `Text` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `attribute` is never used
[INFO] [stdout]  --> src/html.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn attribute<Input>() -> impl Parser<Input, Output = (String, String)>
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `attributes` is never used
[INFO] [stdout]   --> src/html.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn attributes<Input>() -> impl Parser<Input, Output = AttrMap>
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `open_tag` is never used
[INFO] [stdout]   --> src/html.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn open_tag<Input>() -> impl Parser<Input, Output = (String, AttrMap)>
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `close_tag` is never used
[INFO] [stdout]   --> src/html.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn close_tag<Input>() -> impl Parser<Input, Output = String>
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nodes_` is never used
[INFO] [stdout]   --> src/html.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn nodes_<Input>() -> impl Parser<Input, Output = Vec<Box<Node>>>
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `text` is never used
[INFO] [stdout]   --> src/html.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn text<Input>() -> impl Parser<Input, Output = Box<Node>>
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `element` is never used
[INFO] [stdout]   --> src/html.rs:92:4
[INFO] [stdout]    |
[INFO] [stdout] 92 | fn element<Input>() -> impl Parser<Input, Output = Box<Node>>
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.77s
[INFO] running `Command { std: "docker" "inspect" "49acd641686892a5e16b576f078323a450c9038332fae287379ef628bf10cd49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49acd641686892a5e16b576f078323a450c9038332fae287379ef628bf10cd49", kill_on_drop: false }`
[INFO] [stdout] 49acd641686892a5e16b576f078323a450c9038332fae287379ef628bf10cd49
[INFO] checking zaki-yama/puppy-browser against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzaki-yama%2Fpuppy-browser" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zaki-yama/puppy-browser on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zaki-yama/puppy-browser
[INFO] finished tweaking git repo https://github.com/zaki-yama/puppy-browser
[INFO] tweaked toml for git repo https://github.com/zaki-yama/puppy-browser written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/zaki-yama/puppy-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26007c005e3fb9f25f85c4b67e9d844a4b3fca8269424add553fa412299cfcdf
[INFO] running `Command { std: "docker" "start" "-a" "26007c005e3fb9f25f85c4b67e9d844a4b3fca8269424add553fa412299cfcdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26007c005e3fb9f25f85c4b67e9d844a4b3fca8269424add553fa412299cfcdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26007c005e3fb9f25f85c4b67e9d844a4b3fca8269424add553fa412299cfcdf", kill_on_drop: false }`
[INFO] [stdout] 26007c005e3fb9f25f85c4b67e9d844a4b3fca8269424add553fa412299cfcdf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f191ac1f495b4521254fdf6472efaaec29a0d6b179288c6cc65ee90404ffcea
[INFO] running `Command { std: "docker" "start" "-a" "8f191ac1f495b4521254fdf6472efaaec29a0d6b179288c6cc65ee90404ffcea", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking bytes v1.3.0
[INFO] [stderr]     Checking combine v4.6.6
[INFO] [stderr]     Checking puppy-browser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Text` is imported redundantly
[INFO] [stdout]    --> src/html.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |     use crate::dom::Text;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 117 |
[INFO] [stdout] 118 |     use super::*;
[INFO] [stdout]     |         -------- the item `Text` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `attribute` is never used
[INFO] [stdout]  --> src/html.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn attribute<Input>() -> impl Parser<Input, Output = (String, String)>
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `attributes` is never used
[INFO] [stdout]   --> src/html.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn attributes<Input>() -> impl Parser<Input, Output = AttrMap>
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `open_tag` is never used
[INFO] [stdout]   --> src/html.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn open_tag<Input>() -> impl Parser<Input, Output = (String, AttrMap)>
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `close_tag` is never used
[INFO] [stdout]   --> src/html.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn close_tag<Input>() -> impl Parser<Input, Output = String>
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nodes_` is never used
[INFO] [stdout]   --> src/html.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn nodes_<Input>() -> impl Parser<Input, Output = Vec<Box<Node>>>
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `text` is never used
[INFO] [stdout]   --> src/html.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn text<Input>() -> impl Parser<Input, Output = Box<Node>>
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `element` is never used
[INFO] [stdout]   --> src/html.rs:92:4
[INFO] [stdout]    |
[INFO] [stdout] 92 | fn element<Input>() -> impl Parser<Input, Output = Box<Node>>
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.79s
[INFO] running `Command { std: "docker" "inspect" "8f191ac1f495b4521254fdf6472efaaec29a0d6b179288c6cc65ee90404ffcea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f191ac1f495b4521254fdf6472efaaec29a0d6b179288c6cc65ee90404ffcea", kill_on_drop: false }`
[INFO] [stdout] 8f191ac1f495b4521254fdf6472efaaec29a0d6b179288c6cc65ee90404ffcea