[INFO] cloning repository https://github.com/rofrol/kuchiki-text-node
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rofrol/kuchiki-text-node" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frofrol%2Fkuchiki-text-node", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frofrol%2Fkuchiki-text-node'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5e2cf3a9d1b4b0911849443b5dc2cb63c3de6256
[INFO] checking rofrol/kuchiki-text-node against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frofrol%2Fkuchiki-text-node" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rofrol/kuchiki-text-node on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rofrol/kuchiki-text-node
[INFO] finished tweaking git repo https://github.com/rofrol/kuchiki-text-node
[INFO] tweaked toml for git repo https://github.com/rofrol/kuchiki-text-node written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/rofrol/kuchiki-text-node already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf86655564483d1e7c007f0ea0b2ee3651414b51b5e7144697c2f41d91d315d1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bf86655564483d1e7c007f0ea0b2ee3651414b51b5e7144697c2f41d91d315d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf86655564483d1e7c007f0ea0b2ee3651414b51b5e7144697c2f41d91d315d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf86655564483d1e7c007f0ea0b2ee3651414b51b5e7144697c2f41d91d315d1", kill_on_drop: false }`
[INFO] [stdout] bf86655564483d1e7c007f0ea0b2ee3651414b51b5e7144697c2f41d91d315d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2259fb70c8b1912ba2596a204a9fc1b008c974df31e827c5e2cc102094df9dcb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2259fb70c8b1912ba2596a204a9fc1b008c974df31e827c5e2cc102094df9dcb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.3
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling siphasher v0.3.1
[INFO] [stderr]    Compiling serde v1.0.100
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking dtoa v0.4.4
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]     Checking tendril v0.4.1
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking dtoa-short v0.3.2
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling selectors v0.22.0
[INFO] [stderr]     Checking string_cache v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling serde_derive v1.0.100
[INFO] [stderr]    Compiling cssparser v0.27.2
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling cssparser-macros v0.6.0
[INFO] [stderr]    Compiling derive_more v0.99.2
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]    Compiling markup5ever v0.10.0
[INFO] [stderr]     Checking kuchiki v0.8.0
[INFO] [stderr]     Checking kuchiki-text-node v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `last4`
[INFO] [stdout]   --> src/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let last4 = match anchor.as_node().children().text_nodes().last() {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_last4`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `last4`
[INFO] [stdout]   --> src/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let last4 = match anchor.as_node().children().text_nodes().last() {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_last4`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 33s
[INFO] running `Command { std: "docker" "inspect" "2259fb70c8b1912ba2596a204a9fc1b008c974df31e827c5e2cc102094df9dcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2259fb70c8b1912ba2596a204a9fc1b008c974df31e827c5e2cc102094df9dcb", kill_on_drop: false }`
[INFO] [stdout] 2259fb70c8b1912ba2596a204a9fc1b008c974df31e827c5e2cc102094df9dcb