[INFO] fetching crate zerofs 0.16.5...
[INFO] checking zerofs-0.16.5 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate zerofs 0.16.5 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate zerofs 0.16.5
[INFO] finished tweaking crates.io crate zerofs 0.16.5
[INFO] tweaked toml for crates.io crate zerofs 0.16.5 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zerofs 0.16.5 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 zerofs 0.16.5 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] d5f2bdf88e1759b973f4ec3dfb925972c2acadd1c6f9d86bdf3729ddd9c4654f
[INFO] running `Command { std: "docker" "start" "-a" "d5f2bdf88e1759b973f4ec3dfb925972c2acadd1c6f9d86bdf3729ddd9c4654f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5f2bdf88e1759b973f4ec3dfb925972c2acadd1c6f9d86bdf3729ddd9c4654f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5f2bdf88e1759b973f4ec3dfb925972c2acadd1c6f9d86bdf3729ddd9c4654f", kill_on_drop: false }`
[INFO] [stdout] d5f2bdf88e1759b973f4ec3dfb925972c2acadd1c6f9d86bdf3729ddd9c4654f
[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] fc3e3a2c3b2bcdbe2c9fb8190f0249ab0073d3805c21608696043d1e5d6688cd
[INFO] running `Command { std: "docker" "start" "-a" "fc3e3a2c3b2bcdbe2c9fb8190f0249ab0073d3805c21608696043d1e5d6688cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.3.4
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[INFO] [stderr]     Checking tikv-jemallocator v0.6.1
[INFO] [stderr]     Checking zerofs v0.16.5 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, usize>
[INFO] [stdout]    --> src/ninep/protocol.rs:109:24
[INFO] [stdout]     |
[INFO] [stdout] 109 | #[derive(Debug, Clone, DekuRead, DekuWrite)]
[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<usize, Infallible>
[INFO] [stdout]    --> src/ninep/protocol.rs:109:24
[INFO] [stdout]     |
[INFO] [stdout] 109 | #[derive(Debug, Clone, DekuRead, DekuWrite)]
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `DekuRead` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, usize>
[INFO] [stdout]    --> src/ninep/protocol.rs:158:24
[INFO] [stdout]     |
[INFO] [stdout] 158 | #[derive(Debug, Clone, DekuRead, DekuWrite)]
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<usize, Infallible>
[INFO] [stdout]    --> src/ninep/protocol.rs:158:24
[INFO] [stdout]     |
[INFO] [stdout] 158 | #[derive(Debug, Clone, DekuRead, DekuWrite)]
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `DekuRead` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, usize>
[INFO] [stdout]    --> src/ninep/protocol.rs:440:24
[INFO] [stdout]     |
[INFO] [stdout] 440 | #[derive(Debug, Clone, DekuRead, DekuWrite)]
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<usize, Infallible>
[INFO] [stdout]    --> src/ninep/protocol.rs:440:24
[INFO] [stdout]     |
[INFO] [stdout] 440 | #[derive(Debug, Clone, DekuRead, DekuWrite)]
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `DekuRead` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zerofs` (bin "zerofs") due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, usize>
[INFO] [stdout]    --> src/ninep/protocol.rs:109:24
[INFO] [stdout]     |
[INFO] [stdout] 109 | #[derive(Debug, Clone, DekuRead, DekuWrite)]
[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<usize, Infallible>
[INFO] [stdout]    --> src/ninep/protocol.rs:109:24
[INFO] [stdout]     |
[INFO] [stdout] 109 | #[derive(Debug, Clone, DekuRead, DekuWrite)]
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `DekuRead` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, usize>
[INFO] [stdout]    --> src/ninep/protocol.rs:158:24
[INFO] [stdout]     |
[INFO] [stdout] 158 | #[derive(Debug, Clone, DekuRead, DekuWrite)]
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<usize, Infallible>
[INFO] [stdout]    --> src/ninep/protocol.rs:158:24
[INFO] [stdout]     |
[INFO] [stdout] 158 | #[derive(Debug, Clone, DekuRead, DekuWrite)]
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `DekuRead` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, usize>
[INFO] [stdout]    --> src/ninep/protocol.rs:440:24
[INFO] [stdout]     |
[INFO] [stdout] 440 | #[derive(Debug, Clone, DekuRead, DekuWrite)]
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<usize, Infallible>
[INFO] [stdout]    --> src/ninep/protocol.rs:440:24
[INFO] [stdout]     |
[INFO] [stdout] 440 | #[derive(Debug, Clone, DekuRead, DekuWrite)]
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `DekuRead` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zerofs` (bin "zerofs" test) due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "fc3e3a2c3b2bcdbe2c9fb8190f0249ab0073d3805c21608696043d1e5d6688cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc3e3a2c3b2bcdbe2c9fb8190f0249ab0073d3805c21608696043d1e5d6688cd", kill_on_drop: false }`
[INFO] [stdout] fc3e3a2c3b2bcdbe2c9fb8190f0249ab0073d3805c21608696043d1e5d6688cd
