[INFO] fetching crate sixtyfps-viewer 0.1.6...
[INFO] checking sixtyfps-viewer-0.1.6 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate sixtyfps-viewer 0.1.6 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate sixtyfps-viewer 0.1.6
[INFO] finished tweaking crates.io crate sixtyfps-viewer 0.1.6
[INFO] tweaked toml for crates.io crate sixtyfps-viewer 0.1.6 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sixtyfps-viewer 0.1.6 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sixtyfps-viewer 0.1.6 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c42c823bad0fe2b52ef858dba68c263084346fd169a5c437d9422711cb6b0ee
[INFO] running `Command { std: "docker" "start" "-a" "0c42c823bad0fe2b52ef858dba68c263084346fd169a5c437d9422711cb6b0ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c42c823bad0fe2b52ef858dba68c263084346fd169a5c437d9422711cb6b0ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c42c823bad0fe2b52ef858dba68c263084346fd169a5c437d9422711cb6b0ee", kill_on_drop: false }`
[INFO] [stdout] 0c42c823bad0fe2b52ef858dba68c263084346fd169a5c437d9422711cb6b0ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b11cdf4d8d715e385ebb1d87fbe3b6bf48e1b748a5f327ffec69f14ebac28b00
[INFO] running `Command { std: "docker" "start" "-a" "b11cdf4d8d715e385ebb1d87fbe3b6bf48e1b748a5f327ffec69f14ebac28b00", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.113
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[INFO] [stderr]    Compiling winit v0.26.1
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[INFO] [stderr]    Compiling strum_macros v0.23.1
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[INFO] [stderr]    Compiling auto_enums_core v0.7.12
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling vtable-macro v0.1.5
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking data-url v0.1.1
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[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking mio v0.8.0
[INFO] [stderr]     Checking sid v0.6.1
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[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]     Checking simplecss v0.2.1
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[INFO] [stderr]    Compiling byteorder v1.4.3
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[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]     Checking sixtyfps-common v0.1.6
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[INFO] [stderr]     Checking usvg v0.20.0
[INFO] [stderr]     Checking tinyvec v1.5.1
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[INFO] [stderr]     Checking tiny-skia v0.6.2
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[INFO] [stderr]     Checking auto_enums v0.7.12
[INFO] [stderr]     Checking svgfilters v0.4.0
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling sixtyfps-rendering-backend-qt v0.1.6
[INFO] [stderr]    Compiling sixtyfps-corelib-macros v0.1.6
[INFO] [stderr]     Checking wayland-egl v0.29.4
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[INFO] [stderr]     Checking aliasable v0.1.3
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[INFO] [stderr]     Checking sixtyfps-corelib v0.1.6
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking cpp v0.5.6
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]     Checking x11-clipboard v0.5.3
[INFO] [stderr]     Checking generational-arena v0.2.8
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking glow v0.11.2
[INFO] [stderr]     Checking by_address v1.0.4
[INFO] [stderr]     Checking float-cmp v0.5.3
[INFO] [stderr]     Checking imgref v1.9.1
[INFO] [stderr]     Checking lru v0.7.2
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]     Checking ttf-parser v0.14.0
[INFO] [stderr]    Compiling proc-macro-crate v1.1.0
[INFO] [stderr]     Checking svgtypes v0.5.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.6
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking copypasta v0.7.1
[INFO] [stderr]     Checking servo-fontconfig v0.5.1
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling sixtyfps-compilerlib v0.1.6
[INFO] [stderr]    Compiling sixtyfps-rendering-backend-default v0.1.6
[INFO] [stderr]     Checking codemap v0.1.3
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking countme v2.0.4
[INFO] [stderr]     Checking text-size v1.1.0
[INFO] [stderr]     Checking codemap-diagnostic v0.1.1
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[INFO] [stderr]     Checking rowan v0.14.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking num_enum v0.5.6
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking lyon_svg v0.17.2
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking css-color-parser2 v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.75
[INFO] [stderr]     Checking dunce v1.0.2
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]    Compiling clap_derive v3.0.6
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking filetime v0.2.15
[INFO] [stderr]     Checking generativity v1.0.0
[INFO] [stderr]     Checking spin_on v0.1.1
[INFO] [stderr]     Checking notify v4.0.17
[INFO] [stderr]     Checking shlex v1.1.0
[INFO] [stderr]     Checking smol_str v0.1.21
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[INFO] [stderr]     Checking femtovg v0.2.10
[INFO] [stderr]     Checking sixtyfps-rendering-backend-gl v0.1.6
[INFO] [stderr]     Checking sixtyfps-interpreter v0.1.6
[INFO] [stderr]     Checking sixtyfps-viewer v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> main.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | /     /// The style name ('native', 'fluent', or 'ugly')
[INFO] [stdout] 33 | |     #[clap(long, name = "style name")]
[INFO] [stdout] 34 | |     style: Option<String>,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> main.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | /     /// The rendering backend
[INFO] [stdout] 37 | |     #[clap(long, name = "backend")]
[INFO] [stdout] 38 | |     backend: Option<String>,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> main.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | /     /// Specify callbacks handler.
[INFO] [stdout] 53 | |     /// The first argument is the callback name, and the second argument is a string that is going
[INFO] [stdout] 54 | |     /// to be passed to the shell to be executed. Occurences of `$1` will be replaced by the first argument,
[INFO] [stdout] 55 | |     /// and so on.
[INFO] [stdout] 56 | |     #[clap(long, value_names(&["callback", "handler"]), number_of_values = 2)]
[INFO] [stdout] 57 | |     on: Vec<String>,
[INFO] [stdout]    | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sixtyfps-viewer` (bin "sixtyfps-viewer") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> main.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | /     /// The style name ('native', 'fluent', or 'ugly')
[INFO] [stdout] 33 | |     #[clap(long, name = "style name")]
[INFO] [stdout] 34 | |     style: Option<String>,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> main.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | /     /// The rendering backend
[INFO] [stdout] 37 | |     #[clap(long, name = "backend")]
[INFO] [stdout] 38 | |     backend: Option<String>,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> main.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | /     /// Specify callbacks handler.
[INFO] [stdout] 53 | |     /// The first argument is the callback name, and the second argument is a string that is going
[INFO] [stdout] 54 | |     /// to be passed to the shell to be executed. Occurences of `$1` will be replaced by the first argument,
[INFO] [stdout] 55 | |     /// and so on.
[INFO] [stdout] 56 | |     #[clap(long, value_names(&["callback", "handler"]), number_of_values = 2)]
[INFO] [stdout] 57 | |     on: Vec<String>,
[INFO] [stdout]    | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sixtyfps-viewer` (bin "sixtyfps-viewer" test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "b11cdf4d8d715e385ebb1d87fbe3b6bf48e1b748a5f327ffec69f14ebac28b00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b11cdf4d8d715e385ebb1d87fbe3b6bf48e1b748a5f327ffec69f14ebac28b00", kill_on_drop: false }`
[INFO] [stdout] b11cdf4d8d715e385ebb1d87fbe3b6bf48e1b748a5f327ffec69f14ebac28b00