[INFO] fetching crate linuxvideo 0.3.5...
[INFO] checking linuxvideo-0.3.5 against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] extracting crate linuxvideo 0.3.5 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate linuxvideo 0.3.5
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate linuxvideo 0.3.5
[INFO] tweaked toml for crates.io crate linuxvideo 0.3.5 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate linuxvideo 0.3.5 on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate linuxvideo 0.3.5 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" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c4e4c822f925afb1fee54f09e24ac15d7ef317754d7b59902975ecb2c448280b
[INFO] running `Command { std: "docker" "start" "c4e4c822f925afb1fee54f09e24ac15d7ef317754d7b59902975ecb2c448280b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4e4c822f925afb1fee54f09e24ac15d7ef317754d7b59902975ecb2c448280b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c4e4c822f925afb1fee54f09e24ac15d7ef317754d7b59902975ecb2c448280b" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4e4c822f925afb1fee54f09e24ac15d7ef317754d7b59902975ecb2c448280b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c4e4c822f925afb1fee54f09e24ac15d7ef317754d7b59902975ecb2c448280b" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]     Checking crc32fast v1.5.0
[INFO] [stderr]     Checking env_filter v0.1.3
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking fdeflate v0.3.7
[INFO] [stderr]     Checking env_logger v0.11.8
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]     Checking png v0.17.16
[INFO] [stderr]     Checking uoctl v1.0.1
[INFO] [stderr]     Checking linuxvideo v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `PowerLineFrequency` is never constructed
[INFO] [stdout]    --> src/raw/controls.rs:131:14
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub enum PowerLineFrequency: u32 {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `ffi_enum` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constants `DISABLED`, `FREQ_50HZ`, `FREQ_60HZ`, and `AUTO` are never used
[INFO] [stdout]    --> src/raw/controls.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |         DISABLED  = 0,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 133 |         FREQ_50HZ = 1,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 134 |         FREQ_60HZ = 2,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 135 |         AUTO      = 3,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/macros.rs:18:9
[INFO] [stdout]     |
[INFO] [stdout]  18 |         impl $name {
[INFO] [stdout]     |         ---------- associated constants in this implementation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `ffi_enum` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ColorFx` is never constructed
[INFO] [stdout]    --> src/raw/controls.rs:140:14
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub enum ColorFx: u32 {
[INFO] [stdout]     |              ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `ffi_enum` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated constants are never used
[INFO] [stdout]    --> src/raw/controls.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |         NONE         = 0,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 142 |         BW           = 1,
[INFO] [stdout]     |         ^^
[INFO] [stdout] 143 |         SEPIA        = 2,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 144 |         NEGATIVE     = 3,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 145 |         EMBOSS       = 4,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 146 |         SKETCH       = 5,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 147 |         SKY_BLUE     = 6,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 148 |         GRASS_GREEN  = 7,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 149 |         SKIN_WHITEN  = 8,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 150 |         VIVID        = 9,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 151 |         AQUA         = 10,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 152 |         ART_FREEZE   = 11,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 153 |         SILHOUETTE   = 12,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 154 |         SOLARIZATION = 13,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 155 |         ANTIQUE      = 14,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 156 |         SET_CBCR     = 15,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/macros.rs:18:9
[INFO] [stdout]     |
[INFO] [stdout]  18 |         impl $name {
[INFO] [stdout]     |         ---------- associated constants in this implementation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `ffi_enum` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TunerType` is never constructed
[INFO] [stdout]   --> src/shared.rs:17:14
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub enum TunerType: u32 {
[INFO] [stdout]    |              ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `ffi_enum` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constants `RADIO`, `ANALOG_TV`, `DIGITAL_TV`, `SDR`, and `RF` are never used
[INFO] [stdout]   --> src/shared.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         RADIO      = 1,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 19 |         ANALOG_TV  = 2,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 20 |         DIGITAL_TV = 3,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 21 |         SDR        = 4,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 22 |         RF         = 5,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/macros.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         impl $name {
[INFO] [stdout]    |         ---------- associated constants in this implementation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `ffi_enum` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]   --> src/controls.rs:67:45
[INFO] [stdout]    |
[INFO] [stdout] 67 | ...                   return Some(Err(e.into()));
[INFO] [stdout]    |                                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 67 -                             return Some(Err(e.into()));
[INFO] [stdout] 67 +                             return Some(Err(e));
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 67 -                             return Some(Err(e.into()));
[INFO] [stdout] 67 +                             return Some(Err(<std::io::Error as Into<_>>::into(e)));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/controls.rs:188:55
[INFO] [stdout]     |
[INFO] [stdout] 188 |                         Err(other) => return Some(Err(other.into())),
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 188 -                         Err(other) => return Some(Err(other.into())),
[INFO] [stdout] 188 +                         Err(other) => return Some(Err(other)),
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 188 -                         Err(other) => return Some(Err(other.into())),
[INFO] [stdout] 188 +                         Err(other) => return Some(Err(<std::io::Error as Into<_>>::into(other))),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/format.rs:323:50
[INFO] [stdout]     |
[INFO] [stdout] 323 | ...                   Err(e) => return Err(e.into()),
[INFO] [stdout]     |                                            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 323 -                             Err(e) => return Err(e.into()),
[INFO] [stdout] 323 +                             Err(e) => return Err(e),
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 323 -                             Err(e) => return Err(e.into()),
[INFO] [stdout] 323 +                             Err(e) => return Err(<std::io::Error as Into<_>>::into(e)),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/format.rs:462:50
[INFO] [stdout]     |
[INFO] [stdout] 462 | ...                   Err(e) => return Err(e.into()),
[INFO] [stdout]     |                                            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 462 -                             Err(e) => return Err(e.into()),
[INFO] [stdout] 462 +                             Err(e) => return Err(e),
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 462 -                             Err(e) => return Err(e.into()),
[INFO] [stdout] 462 +                             Err(e) => return Err(<std::io::Error as Into<_>>::into(e)),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]   --> src/lib.rs:65:39
[INFO] [stdout]    |
[INFO] [stdout] 65 |             Err(e) => return Some(Err(e.into())),
[INFO] [stdout]    |                                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 65 -             Err(e) => return Some(Err(e.into())),
[INFO] [stdout] 65 +             Err(e) => return Some(Err(e)),
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 65 -             Err(e) => return Some(Err(e.into())),
[INFO] [stdout] 65 +             Err(e) => return Some(Err(<std::io::Error as Into<_>>::into(e))),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]   --> src/lib.rs:89:39
[INFO] [stdout]    |
[INFO] [stdout] 89 |             Err(e) => return Some(Err(e.into())),
[INFO] [stdout]    |                                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 89 -             Err(e) => return Some(Err(e.into())),
[INFO] [stdout] 89 +             Err(e) => return Some(Err(e)),
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 89 -             Err(e) => return Some(Err(e.into())),
[INFO] [stdout] 89 +             Err(e) => return Some(Err(<std::io::Error as Into<_>>::into(e))),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `linuxvideo` (lib) due to 6 previous errors; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `PowerLineFrequency` is never constructed
[INFO] [stdout]    --> src/raw/controls.rs:131:14
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub enum PowerLineFrequency: u32 {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `ffi_enum` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constants `DISABLED`, `FREQ_50HZ`, `FREQ_60HZ`, and `AUTO` are never used
[INFO] [stdout]    --> src/raw/controls.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |         DISABLED  = 0,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 133 |         FREQ_50HZ = 1,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 134 |         FREQ_60HZ = 2,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 135 |         AUTO      = 3,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/macros.rs:18:9
[INFO] [stdout]     |
[INFO] [stdout]  18 |         impl $name {
[INFO] [stdout]     |         ---------- associated constants in this implementation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `ffi_enum` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ColorFx` is never constructed
[INFO] [stdout]    --> src/raw/controls.rs:140:14
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub enum ColorFx: u32 {
[INFO] [stdout]     |              ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `ffi_enum` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated constants are never used
[INFO] [stdout]    --> src/raw/controls.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |         NONE         = 0,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 142 |         BW           = 1,
[INFO] [stdout]     |         ^^
[INFO] [stdout] 143 |         SEPIA        = 2,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 144 |         NEGATIVE     = 3,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 145 |         EMBOSS       = 4,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 146 |         SKETCH       = 5,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 147 |         SKY_BLUE     = 6,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 148 |         GRASS_GREEN  = 7,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 149 |         SKIN_WHITEN  = 8,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 150 |         VIVID        = 9,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 151 |         AQUA         = 10,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 152 |         ART_FREEZE   = 11,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 153 |         SILHOUETTE   = 12,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 154 |         SOLARIZATION = 13,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 155 |         ANTIQUE      = 14,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 156 |         SET_CBCR     = 15,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/macros.rs:18:9
[INFO] [stdout]     |
[INFO] [stdout]  18 |         impl $name {
[INFO] [stdout]     |         ---------- associated constants in this implementation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `ffi_enum` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TunerType` is never constructed
[INFO] [stdout]   --> src/shared.rs:17:14
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub enum TunerType: u32 {
[INFO] [stdout]    |              ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `ffi_enum` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constants `RADIO`, `ANALOG_TV`, `DIGITAL_TV`, `SDR`, and `RF` are never used
[INFO] [stdout]   --> src/shared.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         RADIO      = 1,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 19 |         ANALOG_TV  = 2,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 20 |         DIGITAL_TV = 3,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 21 |         SDR        = 4,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 22 |         RF         = 5,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/macros.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         impl $name {
[INFO] [stdout]    |         ---------- associated constants in this implementation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `ffi_enum` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]   --> src/controls.rs:67:45
[INFO] [stdout]    |
[INFO] [stdout] 67 | ...                   return Some(Err(e.into()));
[INFO] [stdout]    |                                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 67 -                             return Some(Err(e.into()));
[INFO] [stdout] 67 +                             return Some(Err(e));
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 67 -                             return Some(Err(e.into()));
[INFO] [stdout] 67 +                             return Some(Err(<std::io::Error as Into<_>>::into(e)));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/controls.rs:188:55
[INFO] [stdout]     |
[INFO] [stdout] 188 |                         Err(other) => return Some(Err(other.into())),
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 188 -                         Err(other) => return Some(Err(other.into())),
[INFO] [stdout] 188 +                         Err(other) => return Some(Err(other)),
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 188 -                         Err(other) => return Some(Err(other.into())),
[INFO] [stdout] 188 +                         Err(other) => return Some(Err(<std::io::Error as Into<_>>::into(other))),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/format.rs:323:50
[INFO] [stdout]     |
[INFO] [stdout] 323 | ...                   Err(e) => return Err(e.into()),
[INFO] [stdout]     |                                            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 323 -                             Err(e) => return Err(e.into()),
[INFO] [stdout] 323 +                             Err(e) => return Err(e),
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 323 -                             Err(e) => return Err(e.into()),
[INFO] [stdout] 323 +                             Err(e) => return Err(<std::io::Error as Into<_>>::into(e)),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/format.rs:462:50
[INFO] [stdout]     |
[INFO] [stdout] 462 | ...                   Err(e) => return Err(e.into()),
[INFO] [stdout]     |                                            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 462 -                             Err(e) => return Err(e.into()),
[INFO] [stdout] 462 +                             Err(e) => return Err(e),
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 462 -                             Err(e) => return Err(e.into()),
[INFO] [stdout] 462 +                             Err(e) => return Err(<std::io::Error as Into<_>>::into(e)),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]   --> src/lib.rs:65:39
[INFO] [stdout]    |
[INFO] [stdout] 65 |             Err(e) => return Some(Err(e.into())),
[INFO] [stdout]    |                                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 65 -             Err(e) => return Some(Err(e.into())),
[INFO] [stdout] 65 +             Err(e) => return Some(Err(e)),
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 65 -             Err(e) => return Some(Err(e.into())),
[INFO] [stdout] 65 +             Err(e) => return Some(Err(<std::io::Error as Into<_>>::into(e))),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]   --> src/lib.rs:89:39
[INFO] [stdout]    |
[INFO] [stdout] 89 |             Err(e) => return Some(Err(e.into())),
[INFO] [stdout]    |                                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 89 -             Err(e) => return Some(Err(e.into())),
[INFO] [stdout] 89 +             Err(e) => return Some(Err(e)),
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 89 -             Err(e) => return Some(Err(e.into())),
[INFO] [stdout] 89 +             Err(e) => return Some(Err(<std::io::Error as Into<_>>::into(e))),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `linuxvideo` (lib test) due to 6 previous errors; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "c4e4c822f925afb1fee54f09e24ac15d7ef317754d7b59902975ecb2c448280b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4e4c822f925afb1fee54f09e24ac15d7ef317754d7b59902975ecb2c448280b", kill_on_drop: false }`
[INFO] [stdout] c4e4c822f925afb1fee54f09e24ac15d7ef317754d7b59902975ecb2c448280b
