[INFO] fetching crate gui 0.6.0...
[INFO] testing gui-0.6.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate gui 0.6.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate gui 0.6.0 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gui 0.6.0
[INFO] finished tweaking crates.io crate gui 0.6.0
[INFO] tweaked toml for crates.io crate gui 0.6.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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] b6442b67a86cb158d53a6d12459fff01252a1a5d591bd5e5cd9f02d83570e888
[INFO] running `Command { std: "docker" "start" "-a" "b6442b67a86cb158d53a6d12459fff01252a1a5d591bd5e5cd9f02d83570e888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6442b67a86cb158d53a6d12459fff01252a1a5d591bd5e5cd9f02d83570e888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6442b67a86cb158d53a6d12459fff01252a1a5d591bd5e5cd9f02d83570e888", kill_on_drop: false }`
[INFO] [stdout] b6442b67a86cb158d53a6d12459fff01252a1a5d591bd5e5cd9f02d83570e888
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1bf1cbde56e20dc35ba7d4477332036b224a84ca15deee5f205cff3ad965473
[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" "a1bf1cbde56e20dc35ba7d4477332036b224a84ca15deee5f205cff3ad965473", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling gui-derive v0.6.0
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling gui v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.69s
[INFO] running `Command { std: "docker" "inspect" "a1bf1cbde56e20dc35ba7d4477332036b224a84ca15deee5f205cff3ad965473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1bf1cbde56e20dc35ba7d4477332036b224a84ca15deee5f205cff3ad965473", kill_on_drop: false }`
[INFO] [stdout] a1bf1cbde56e20dc35ba7d4477332036b224a84ca15deee5f205cff3ad965473
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4c22ee75ba7b9113ae28da755e41244004b075390c0280912f37720e88131d0
[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" "d4c22ee75ba7b9113ae28da755e41244004b075390c0280912f37720e88131d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio v0.3.7
[INFO] [stderr]    Compiling tokio-macros v0.3.2
[INFO] [stderr]    Compiling gui v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/test_ui.rs:107:42
[INFO] [stdout]     |
[INFO] [stdout] 107 |     assert!(string.starts_with("Ui { "), string);
[INFO] [stdout]     |                                          ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 107 |     assert!(string.starts_with("Ui { "), "{}", string);
[INFO] [stdout]     |                                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.96s
[INFO] running `Command { std: "docker" "inspect" "d4c22ee75ba7b9113ae28da755e41244004b075390c0280912f37720e88131d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4c22ee75ba7b9113ae28da755e41244004b075390c0280912f37720e88131d0", kill_on_drop: false }`
[INFO] [stdout] d4c22ee75ba7b9113ae28da755e41244004b075390c0280912f37720e88131d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dd7bb65e51632e31b8cffa3be0047b7ac22f9b0cf505ca19fe0aa0ad7ced143f
[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" "dd7bb65e51632e31b8cffa3be0047b7ac22f9b0cf505ca19fe0aa0ad7ced143f", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/test_ui.rs:107:42
[INFO] [stderr]     |
[INFO] [stderr] 107 |     assert!(string.starts_with("Ui { "), string);
[INFO] [stderr]     |                                          ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 107 |     assert!(string.starts_with("Ui { "), "{}", string);
[INFO] [stderr]     |                                          ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/gui-8e5100521385cdff)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/test_events.rs (/opt/rustwide/target/debug/deps/test_events-1ec07ea672c2fc9e)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test event_handling_with_focus ... ok
[INFO] [stdout] test targeted_event_returned_on_no_focus ... ok
[INFO] [stdout] test hook_events_return_value ... ok
[INFO] [stdout] test hook_events_handler ... ok
[INFO] [stdout] test hook_can_send_message ... ok
[INFO] [stdout] test event_propagation ... ok
[INFO] [stdout] test events_bubble_up_when_unhandled ... ok
[INFO] [stdout] test hook_emitted_events ... ok
[INFO] [stderr]      Running tests/test_message.rs (/opt/rustwide/target/debug/deps/test_message-a9b3d620474d53bf)
[INFO] [stdout] test hook_event_merging ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test call_message ... ok
[INFO] [stdout] test repeated_send_receive ... ok
[INFO] [stdout] test forward_message ... ok
[INFO] [stdout] test no_handler ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_render.rs (/opt/rustwide/target/debug/deps/test_render-5fc9c835553c2e65)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test render_honors_visibility_flag ... ok
[INFO] [stdout] test render_is_called_for_each_widget ... ok
[INFO] [stdout] test bounding_box_is_properly_sized ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_ui.rs (/opt/rustwide/target/debug/deps/test_ui-797aef972772a03b)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test debug_format ... ok
[INFO] [stdout] test correct_ids ... ok
[INFO] [stdout] test focus_makes_widget_visible ... ok
[INFO] [stdout] test event_based_widget_creation ... ok
[INFO] [stdout] test recursive_widget_creation ... ok
[INFO] [stdout] test no_initial_focus ... ok
[INFO] [stdout] test repeated_show_preserves_order ... ok
[INFO] [stdout] test recursive_widget_operations ... ok
[INFO] [stdout] test repeated_hide_preserves_order ... ok
[INFO] [stdout] test visibility_fun ... ok
[INFO] [stdout] test moving_widget_creation ... ok
[INFO] [stdout] test focus_widget ... ok
[INFO] [stdout] test creation_order_is_child_order ... ok
[INFO] [stdout] test focus_changes_child_order ... ok
[INFO] [stdout] test hide_changes_child_order ... ok
[INFO] [stderr]    Doc-tests gui
[INFO] [stdout] test share_ids_between_ui_objects ... ok
[INFO] [stdout] test incorrect_widget_id ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/renderer.rs - renderer::Renderer::render (line 61) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.60s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dd7bb65e51632e31b8cffa3be0047b7ac22f9b0cf505ca19fe0aa0ad7ced143f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd7bb65e51632e31b8cffa3be0047b7ac22f9b0cf505ca19fe0aa0ad7ced143f", kill_on_drop: false }`
[INFO] [stdout] dd7bb65e51632e31b8cffa3be0047b7ac22f9b0cf505ca19fe0aa0ad7ced143f