[INFO] updating cached repository https://github.com/longfangsong/silly_browser
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f0f1fce8741603e2e0deada24d07a307d71b4318
[INFO] testing longfangsong/silly_browser against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flongfangsong%2Fsilly_browser" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  77% (7/9)   
Checking out files:  88% (8/9)   
Checking out files: 100% (9/9)   
Checking out files: 100% (9/9), done.
[INFO] validating manifest of git repo https://github.com/longfangsong/silly_browser on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/longfangsong/silly_browser
[INFO] finished tweaking git repo https://github.com/longfangsong/silly_browser
[INFO] tweaked toml for git repo https://github.com/longfangsong/silly_browser written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/longfangsong/silly_browser already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dffb98dc17f195d7239e85372807183422daa6b4a4359a84d139f9c9eda9e24b
[INFO] running `"docker" "start" "-a" "dffb98dc17f195d7239e85372807183422daa6b4a4359a84d139f9c9eda9e24b"`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling linked-hash-map v0.5.2
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.3
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling piston-float v0.3.0
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling utf-8 v0.7.5
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling instant v0.1.1
[INFO] [stderr]    Compiling conrod_winit v0.67.0
[INFO] [stderr]    Compiling find_folder v0.3.0
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling lock_api v0.3.1
[INFO] [stderr]    Compiling futf v0.1.4
[INFO] [stderr]    Compiling piston-viewport v0.5.0
[INFO] [stderr]    Compiling nom v5.0.1
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling proc-macro2 v1.0.3
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling tendril v0.4.1
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling lexical-core v0.4.5
[INFO] [stderr]    Compiling rustc-hash v1.0.1
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling x11-dl v2.18.4
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling daggy v0.5.0
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling backtrace v0.3.37
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.3
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.5
[INFO] [stderr]    Compiling glium v0.24.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling wayland-client v0.21.13
[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling wayland-commons v0.21.13
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling rusttype v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling rusttype v0.7.9
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling conrod_derive v0.67.0
[INFO] [stderr]    Compiling html5ever v0.23.0
[INFO] [stderr]    Compiling smithay-client-toolkit v0.4.6
[INFO] [stderr]    Compiling markup5ever v0.8.1
[INFO] [stderr]    Compiling pistoncore-input v0.24.0
[INFO] [stderr]    Compiling winit v0.19.3
[INFO] [stderr]    Compiling conrod_core v0.67.0
[INFO] [stderr]    Compiling glutin v0.20.1
[INFO] [stderr]    Compiling conrod_glium v0.67.0
[INFO] [stderr]    Compiling silly_browser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::borrow::BorrowMut;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `conrod_core::text::Font`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use conrod_core::text::Font;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom::character::complete::space1`
[INFO] [stderr]  --> src/parser.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use nom::character::complete::space1;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_tags`
[INFO] [stderr]    --> src/main.rs:271:4
[INFO] [stderr]     |
[INFO] [stderr] 271 | fn count_tags(node: &Handle) -> usize {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 14s
[INFO] running `"docker" "inspect" "dffb98dc17f195d7239e85372807183422daa6b4a4359a84d139f9c9eda9e24b"`
[INFO] running `"docker" "rm" "-f" "dffb98dc17f195d7239e85372807183422daa6b4a4359a84d139f9c9eda9e24b"`
[INFO] [stdout] dffb98dc17f195d7239e85372807183422daa6b4a4359a84d139f9c9eda9e24b
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ebda73a58b87ef8289afa1804f9b844958eea25804e0e33bd54a7255cc5fd4a0
[INFO] running `"docker" "start" "-a" "ebda73a58b87ef8289afa1804f9b844958eea25804e0e33bd54a7255cc5fd4a0"`
[INFO] [stderr]    Compiling silly_browser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::borrow::BorrowMut;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `conrod_core::text::Font`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use conrod_core::text::Font;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom::character::complete::space1`
[INFO] [stderr]  --> src/parser.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use nom::character::complete::space1;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_tags`
[INFO] [stderr]    --> src/main.rs:271:4
[INFO] [stderr]     |
[INFO] [stderr] 271 | fn count_tags(node: &Handle) -> usize {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.82s
[INFO] running `"docker" "inspect" "ebda73a58b87ef8289afa1804f9b844958eea25804e0e33bd54a7255cc5fd4a0"`
[INFO] running `"docker" "rm" "-f" "ebda73a58b87ef8289afa1804f9b844958eea25804e0e33bd54a7255cc5fd4a0"`
[INFO] [stdout] ebda73a58b87ef8289afa1804f9b844958eea25804e0e33bd54a7255cc5fd4a0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f42227f0005433c9fa350885cee3bd4f4d6ab04f72d020886e4d26e149f35139
[INFO] running `"docker" "start" "-a" "f42227f0005433c9fa350885cee3bd4f4d6ab04f72d020886e4d26e149f35139"`
[INFO] [stderr] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::borrow::BorrowMut;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `conrod_core::text::Font`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use conrod_core::text::Font;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom::character::complete::space1`
[INFO] [stderr]  --> src/parser.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use nom::character::complete::space1;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_tags`
[INFO] [stderr]    --> src/main.rs:271:4
[INFO] [stderr]     |
[INFO] [stderr] 271 | fn count_tags(node: &Handle) -> usize {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/silly_browser-1960ebbb0934f5a1
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f42227f0005433c9fa350885cee3bd4f4d6ab04f72d020886e4d26e149f35139"`
[INFO] running `"docker" "rm" "-f" "f42227f0005433c9fa350885cee3bd4f4d6ab04f72d020886e4d26e149f35139"`
[INFO] [stdout] f42227f0005433c9fa350885cee3bd4f4d6ab04f72d020886e4d26e149f35139