[INFO] cloning repository https://github.com/Jasopaum/rust_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/Jasopaum/rust_browser_engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJasopaum%2Frust_browser_engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJasopaum%2Frust_browser_engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 38000279ffe715a9c4cde0c11b1b7bff52c7f45e
[INFO] checking Jasopaum/rust_browser_engine against try#5cafabc9f16561d7796554d5d241c3068e2bd97f for pr-135852
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJasopaum%2Frust_browser_engine" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jasopaum/rust_browser_engine on toolchain 5cafabc9f16561d7796554d5d241c3068e2bd97f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Jasopaum/rust_browser_engine
[INFO] finished tweaking git repo https://github.com/Jasopaum/rust_browser_engine
[INFO] tweaked toml for git repo https://github.com/Jasopaum/rust_browser_engine written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Jasopaum/rust_browser_engine 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" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking Jasopaum/rust_browser_engine against try#5cafabc9f16561d7796554d5d241c3068e2bd97f for pr-135852
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJasopaum%2Frust_browser_engine" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jasopaum/rust_browser_engine on toolchain 5cafabc9f16561d7796554d5d241c3068e2bd97f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Jasopaum/rust_browser_engine
[INFO] finished tweaking git repo https://github.com/Jasopaum/rust_browser_engine
[INFO] tweaked toml for git repo https://github.com/Jasopaum/rust_browser_engine written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Jasopaum/rust_browser_engine 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" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-width v0.1.6
[INFO] [stderr]   Downloaded pistoncore-input v0.28.0
[INFO] [stderr]   Downloaded piston-graphics_api_version v0.2.0
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[INFO] [stderr]   Downloaded wayland-scanner v0.21.13
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[INFO] [stderr]   Downloaded winit v0.19.3
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[INFO] [stderr]   Downloaded piston2d-graphics v0.35.0
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[INFO] [stderr]   Downloaded piston_window v0.105.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fdce4d2e968d71b7beece8b66db523bc5b19619be874664ff398891d87a77c6
[INFO] running `Command { std: "docker" "start" "-a" "2fdce4d2e968d71b7beece8b66db523bc5b19619be874664ff398891d87a77c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fdce4d2e968d71b7beece8b66db523bc5b19619be874664ff398891d87a77c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fdce4d2e968d71b7beece8b66db523bc5b19619be874664ff398891d87a77c6", kill_on_drop: false }`
[INFO] [stdout] 2fdce4d2e968d71b7beece8b66db523bc5b19619be874664ff398891d87a77c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4c403be62bd432c13922e3aa0a88b87cf7b7b909e48bb6782b7405d6110ea0d
[INFO] running `Command { std: "docker" "start" "-a" "d4c403be62bd432c13922e3aa0a88b87cf7b7b909e48bb6782b7405d6110ea0d", kill_on_drop: false }`
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[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
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[INFO] [stderr]    Compiling cc v1.0.45
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[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling syn v0.15.44
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[INFO] [stderr]    Compiling wayland-scanner v0.21.13
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[INFO] [stderr]    Compiling nix v0.14.1
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[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]     Checking rusttype v0.8.1
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[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking piston-viewport v1.0.0
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[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling serde v1.0.101
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[INFO] [stderr]     Checking dlib v0.4.1
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[INFO] [stderr]     Checking num_cpus v1.10.1
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[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking piston-graphics_api_version v0.2.0
[INFO] [stderr]    Compiling num-derive v0.2.5
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[INFO] [stderr]     Checking adler32 v1.0.4
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[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]     Checking line_drawing v0.7.0
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[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
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[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking either v1.5.3
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[INFO] [stderr]     Checking rayon v1.2.0
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[INFO] [stderr]     Checking gfx_core v0.9.2
[INFO] [stderr]     Checking deflate v0.7.20
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[INFO] [stderr]    Compiling glutin_glx_sys v0.1.5
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.3
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling gl_generator v0.10.0
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[INFO] [stderr]     Checking color_quant v1.0.1
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[INFO] [stderr]     Checking jpeg-decoder v0.1.16
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling gfx_gl v0.6.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking piston-texture v0.8.0
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling derivative v1.0.3
[INFO] [stderr]     Checking gfx v0.18.2
[INFO] [stderr]     Checking shader_version v0.6.0
[INFO] [stderr]     Checking tiff v0.3.1
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[INFO] [stderr]     Checking interpolation v0.2.0
[INFO] [stderr]     Checking image v0.22.3
[INFO] [stderr]     Checking read_color v1.0.0
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.3.1
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[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking find_folder v0.3.0
[INFO] [stderr]     Checking pistoncore-input v0.28.0
[INFO] [stderr]     Checking piston-gfx_texture v0.40.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.66.0
[INFO] [stderr]     Checking gfx_device_gl v0.16.2
[INFO] [stderr]     Checking pistoncore-window v0.44.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.49.0
[INFO] [stderr]     Checking piston v0.49.0
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[INFO] [stderr]     Checking winit v0.19.3
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[INFO] [stderr]     Checking piston_window v0.105.0
[INFO] [stderr]     Checking toy_browser_engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::dom`
[INFO] [stdout]  --> src/render.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::dom;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::dom`
[INFO] [stdout]  --> src/render.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::dom;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Inline` is never constructed
[INFO] [stdout]   --> src/style.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum Display {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] 16 |     Block,
[INFO] [stdout] 17 |     Inline,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `AnonymousBlock` is never constructed
[INFO] [stdout]   --> src/layout.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum BoxType {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 19 |     AnonymousBlock,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BoxType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Inline` is never constructed
[INFO] [stdout]   --> src/style.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum Display {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] 16 |     Block,
[INFO] [stdout] 17 |     Inline,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `AnonymousBlock` is never constructed
[INFO] [stdout]   --> src/layout.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum BoxType {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 19 |     AnonymousBlock,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BoxType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.24s
[INFO] running `Command { std: "docker" "inspect" "d4c403be62bd432c13922e3aa0a88b87cf7b7b909e48bb6782b7405d6110ea0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4c403be62bd432c13922e3aa0a88b87cf7b7b909e48bb6782b7405d6110ea0d", kill_on_drop: false }`
[INFO] [stdout] d4c403be62bd432c13922e3aa0a88b87cf7b7b909e48bb6782b7405d6110ea0d