[INFO] cloning repository https://github.com/yamakenji24/build-browser-ex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yamakenji24/build-browser-ex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyamakenji24%2Fbuild-browser-ex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyamakenji24%2Fbuild-browser-ex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db51d404a50a5dcb9b96ee52d69ea2b919f87edb
[INFO] checking yamakenji24/build-browser-ex against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyamakenji24%2Fbuild-browser-ex" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yamakenji24/build-browser-ex 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/yamakenji24/build-browser-ex
[INFO] finished tweaking git repo https://github.com/yamakenji24/build-browser-ex
[INFO] tweaked toml for git repo https://github.com/yamakenji24/build-browser-ex written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/yamakenji24/build-browser-ex 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e4cb361922ecc877e7df5fbc495b7d185ea9b307bf60103c39a53556c9c5e5f3
[INFO] running `Command { std: "docker" "start" "-a" "e4cb361922ecc877e7df5fbc495b7d185ea9b307bf60103c39a53556c9c5e5f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4cb361922ecc877e7df5fbc495b7d185ea9b307bf60103c39a53556c9c5e5f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4cb361922ecc877e7df5fbc495b7d185ea9b307bf60103c39a53556c9c5e5f3", kill_on_drop: false }`
[INFO] [stdout] e4cb361922ecc877e7df5fbc495b7d185ea9b307bf60103c39a53556c9c5e5f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e547246beb00fc62aebe1f752ff5b67ebec9b36a89275fe9f6ae0a2697934810
[INFO] running `Command { std: "docker" "start" "-a" "e547246beb00fc62aebe1f752ff5b67ebec9b36a89275fe9f6ae0a2697934810", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling pkg-config v0.3.20
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking combine v4.6.1
[INFO] [stderr]    Compiling ncurses v5.101.0
[INFO] [stderr]     Checking cursive v0.16.3
[INFO] [stderr]     Checking build-browser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `char`
[INFO] [stdout]  --> src/css.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 |   parser::char::{self, char, letter, newline, space},
[INFO] [stdout]   |                        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Element`
[INFO] [stdout]  --> src/css.rs:9:34
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::dom::{Node, NodeType, Element};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Text` is imported redundantly
[INFO] [stdout]    --> src/html.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |     use crate::dom::Text;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 131 |
[INFO] [stdout] 132 |     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: unused import: `char`
[INFO] [stdout]  --> src/css.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 |   parser::char::{self, char, letter, newline, space},
[INFO] [stdout]   |                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.13s
[INFO] running `Command { std: "docker" "inspect" "e547246beb00fc62aebe1f752ff5b67ebec9b36a89275fe9f6ae0a2697934810", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e547246beb00fc62aebe1f752ff5b67ebec9b36a89275fe9f6ae0a2697934810", kill_on_drop: false }`
[INFO] [stdout] e547246beb00fc62aebe1f752ff5b67ebec9b36a89275fe9f6ae0a2697934810
[INFO] checking yamakenji24/build-browser-ex against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyamakenji24%2Fbuild-browser-ex" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yamakenji24/build-browser-ex on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yamakenji24/build-browser-ex
[INFO] finished tweaking git repo https://github.com/yamakenji24/build-browser-ex
[INFO] tweaked toml for git repo https://github.com/yamakenji24/build-browser-ex written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/yamakenji24/build-browser-ex 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 803e9326acf217e0d371c0319287569af598535ffa3abfed120a8128c204e0ab
[INFO] running `Command { std: "docker" "start" "-a" "803e9326acf217e0d371c0319287569af598535ffa3abfed120a8128c204e0ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "803e9326acf217e0d371c0319287569af598535ffa3abfed120a8128c204e0ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "803e9326acf217e0d371c0319287569af598535ffa3abfed120a8128c204e0ab", kill_on_drop: false }`
[INFO] [stdout] 803e9326acf217e0d371c0319287569af598535ffa3abfed120a8128c204e0ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea25d14bd17c491271fa3f4e2bfc98fee90a29c551aa96f9eea9d82a072997ec
[INFO] running `Command { std: "docker" "start" "-a" "ea25d14bd17c491271fa3f4e2bfc98fee90a29c551aa96f9eea9d82a072997ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling pkg-config v0.3.20
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking combine v4.6.1
[INFO] [stderr]    Compiling ncurses v5.101.0
[INFO] [stderr]     Checking cursive v0.16.3
[INFO] [stderr]     Checking build-browser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `char`
[INFO] [stdout]  --> src/css.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 |   parser::char::{self, char, letter, newline, space},
[INFO] [stdout]   |                        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Element`
[INFO] [stdout]  --> src/css.rs:9:34
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::dom::{Node, NodeType, Element};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Text` is imported redundantly
[INFO] [stdout]    --> src/html.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |     use crate::dom::Text;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 131 |
[INFO] [stdout] 132 |     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: unused import: `char`
[INFO] [stdout]  --> src/css.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 |   parser::char::{self, char, letter, newline, space},
[INFO] [stdout]   |                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.96s
[INFO] running `Command { std: "docker" "inspect" "ea25d14bd17c491271fa3f4e2bfc98fee90a29c551aa96f9eea9d82a072997ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea25d14bd17c491271fa3f4e2bfc98fee90a29c551aa96f9eea9d82a072997ec", kill_on_drop: false }`
[INFO] [stdout] ea25d14bd17c491271fa3f4e2bfc98fee90a29c551aa96f9eea9d82a072997ec