[INFO] cloning repository https://github.com/zaki-yama-labs/rust-toy-browser-engine
[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-labs/rust-toy-browser-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzaki-yama-labs%2Frust-toy-browser-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzaki-yama-labs%2Frust-toy-browser-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f68ffb835ae57965f858df90b4d0dc548f209468
[INFO] testing zaki-yama-labs/rust-toy-browser-engine against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzaki-yama-labs%2Frust-toy-browser-engine" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zaki-yama-labs/rust-toy-browser-engine on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zaki-yama-labs/rust-toy-browser-engine
[INFO] finished tweaking git repo https://github.com/zaki-yama-labs/rust-toy-browser-engine
[INFO] tweaked toml for git repo https://github.com/zaki-yama-labs/rust-toy-browser-engine written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/zaki-yama-labs/rust-toy-browser-engine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4643e24ab30a4ceb175b76dfc7a6b9f96357b81491d8dfa47224609150c004f5
[INFO] running `Command { std: "docker" "start" "-a" "4643e24ab30a4ceb175b76dfc7a6b9f96357b81491d8dfa47224609150c004f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4643e24ab30a4ceb175b76dfc7a6b9f96357b81491d8dfa47224609150c004f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4643e24ab30a4ceb175b76dfc7a6b9f96357b81491d8dfa47224609150c004f5", kill_on_drop: false }`
[INFO] [stdout] 4643e24ab30a4ceb175b76dfc7a6b9f96357b81491d8dfa47224609150c004f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 751f9d0563099aecef381cf7608ec94ecc95433d41b240b8accdee3325ee4ec0
[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" "751f9d0563099aecef381cf7608ec94ecc95433d41b240b8accdee3325ee4ec0", kill_on_drop: false }`
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling tiff v0.6.1
[INFO] [stderr]    Compiling image v0.23.13
[INFO] [stderr]    Compiling rust-toy-browser-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.09s
[INFO] running `Command { std: "docker" "inspect" "751f9d0563099aecef381cf7608ec94ecc95433d41b240b8accdee3325ee4ec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "751f9d0563099aecef381cf7608ec94ecc95433d41b240b8accdee3325ee4ec0", kill_on_drop: false }`
[INFO] [stdout] 751f9d0563099aecef381cf7608ec94ecc95433d41b240b8accdee3325ee4ec0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9cc8313abf06bdcfec895f963a79f7fb98a3733bf43109ee9d6770b74a26b2ff
[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" "9cc8313abf06bdcfec895f963a79f7fb98a3733bf43109ee9d6770b74a26b2ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-toy-browser-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `elem`
[INFO] [stdout]    --> src/style.rs:138:22
[INFO] [stdout]     |
[INFO] [stdout] 138 |     use crate::dom::{elem, text};
[INFO] [stdout]     |                      ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "9cc8313abf06bdcfec895f963a79f7fb98a3733bf43109ee9d6770b74a26b2ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cc8313abf06bdcfec895f963a79f7fb98a3733bf43109ee9d6770b74a26b2ff", kill_on_drop: false }`
[INFO] [stdout] 9cc8313abf06bdcfec895f963a79f7fb98a3733bf43109ee9d6770b74a26b2ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1a45ab106c1661e73db2aa9628c9e1d5d3b6c02927e3b07222be4d0b2d0c5cbd
[INFO] running `Command { std: "docker" "start" "-a" "1a45ab106c1661e73db2aa9628c9e1d5d3b6c02927e3b07222be4d0b2d0c5cbd", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `elem`
[INFO] [stderr]    --> src/style.rs:138:22
[INFO] [stderr]     |
[INFO] [stderr] 138 |     use crate::dom::{elem, text};
[INFO] [stderr]     |                      ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-toy-browser-engine` (bin "rust-toy-browser-engine" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_toy_browser_engine-3863f79474f9c385)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test css::tests::test_parse_class ... ok
[INFO] [stdout] test css::tests::test_parse_id ... ok
[INFO] [stdout] test css::tests::test_parse_multiple_declarations ... ok
[INFO] [stdout] test css::tests::test_parse_multiple_rules ... ok
[INFO] [stdout] test css::tests::test_parse_multiple_selectors ... ok
[INFO] [stdout] test html::tests::test_dom ... ok
[INFO] [stdout] test style::tests::test_style_tree_overwrite ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1a45ab106c1661e73db2aa9628c9e1d5d3b6c02927e3b07222be4d0b2d0c5cbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a45ab106c1661e73db2aa9628c9e1d5d3b6c02927e3b07222be4d0b2d0c5cbd", kill_on_drop: false }`
[INFO] [stdout] 1a45ab106c1661e73db2aa9628c9e1d5d3b6c02927e3b07222be4d0b2d0c5cbd