[INFO] cloning repository https://github.com/delan/packetry
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/delan/packetry" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdelan%2Fpacketry", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdelan%2Fpacketry'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b9618288bc98b3b0a700bee97e240709e4375268
[INFO] building delan/packetry against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdelan%2Fpacketry" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/delan/packetry
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/delan/packetry
[INFO] tweaked toml for git repo https://github.com/delan/packetry written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/delan/packetry on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/delan/packetry 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8282a334fba4880ba8a69549f1a3052910e0e76ec1ef3316ccd03e2f6870eee7
[INFO] running `Command { std: "docker" "start" "-a" "8282a334fba4880ba8a69549f1a3052910e0e76ec1ef3316ccd03e2f6870eee7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8282a334fba4880ba8a69549f1a3052910e0e76ec1ef3316ccd03e2f6870eee7", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "cd36cdd025660c253fe4b0102b101f02ae68309f158ba8b70d5285d395aa370c", kill_on_drop: false }`
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[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/capture.rs:232:12
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub struct Device {
[INFO] [stdout]     |            ^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/capture.rs:231:1
[INFO] [stdout]     |
[INFO] [stdout] 231 | / #[repr(C)]
[INFO] [stdout] 232 | | pub struct Device {
[INFO] [stdout] 233 | |     pub address: DeviceAddr,
[INFO] [stdout] 234 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/capture.rs:239:16
[INFO] [stdout]     |
[INFO] [stdout] 239 |     pub struct Endpoint(u64);
[INFO] [stdout]     |                ^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/capture.rs:265:16
[INFO] [stdout]     |
[INFO] [stdout] 265 |     pub struct TransferIndexEntry(u64);
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | / #[repr(transparent)]
[INFO] [stdout] 43 | | pub struct DeviceAddr(pub u8);
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:47:1
[INFO] [stdout]    |
[INFO] [stdout] 47 | / #[repr(transparent)]
[INFO] [stdout] 48 | | pub struct DeviceField(pub u8);
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:52:1
[INFO] [stdout]    |
[INFO] [stdout] 52 | / #[repr(transparent)]
[INFO] [stdout] 53 | | pub struct StringId(pub u8);
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:57:1
[INFO] [stdout]    |
[INFO] [stdout] 57 | / #[repr(transparent)]
[INFO] [stdout] 58 | | pub struct ConfigNum(pub u8);
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:62:1
[INFO] [stdout]    |
[INFO] [stdout] 62 | / #[repr(transparent)]
[INFO] [stdout] 63 | | pub struct ConfigField(pub u8);
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | / #[repr(transparent)]
[INFO] [stdout] 68 | | pub struct InterfaceNum(pub u8);
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:72:1
[INFO] [stdout]    |
[INFO] [stdout] 72 | / #[repr(transparent)]
[INFO] [stdout] 73 | | pub struct InterfaceField(pub u8);
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:77:1
[INFO] [stdout]    |
[INFO] [stdout] 77 | / #[repr(transparent)]
[INFO] [stdout] 78 | | pub struct InterfaceEpNum(pub u8);
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:82:1
[INFO] [stdout]    |
[INFO] [stdout] 82 | / #[repr(transparent)]
[INFO] [stdout] 83 | | pub struct EndpointNum(pub u8);
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:87:1
[INFO] [stdout]    |
[INFO] [stdout] 87 | / #[repr(transparent)]
[INFO] [stdout] 88 | | pub struct EndpointField(pub u8);
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:92:1
[INFO] [stdout]    |
[INFO] [stdout] 92 | / #[repr(transparent)]
[INFO] [stdout] 93 | | pub struct EndpointAddr(pub u8);
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:115:1
[INFO] [stdout]     |
[INFO] [stdout] 115 | / #[repr(transparent)]
[INFO] [stdout] 116 | | pub struct EndpointAttr(pub u8);
[INFO] [stdout]     | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:136:12
[INFO] [stdout]     |
[INFO] [stdout] 136 | pub struct BCDVersion {
[INFO] [stdout]     |            ^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:135:1
[INFO] [stdout]     |
[INFO] [stdout] 135 | / #[repr(C)]
[INFO] [stdout] 136 | | pub struct BCDVersion {
[INFO] [stdout] 137 | |     pub minor: u8,
[INFO] [stdout] 138 | |     pub major: u8,
[INFO] [stdout] 139 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:283:16
[INFO] [stdout]     |
[INFO] [stdout] 283 |     pub struct RequestTypeFields(u8);
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:451:12
[INFO] [stdout]     |
[INFO] [stdout] 451 | pub struct DeviceDescriptor {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:450:1
[INFO] [stdout]     |
[INFO] [stdout] 450 | / #[repr(C)]
[INFO] [stdout] 451 | | pub struct DeviceDescriptor {
[INFO] [stdout] 452 | |     pub length: u8,
[INFO] [stdout] 453 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 465 | |     pub num_configurations: u8
[INFO] [stdout] 466 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:503:1
[INFO] [stdout]     |
[INFO] [stdout] 503 | / #[repr(C, packed)]
[INFO] [stdout] 504 | | pub struct ConfigDescriptor {
[INFO] [stdout] 505 | |     pub length: u8,
[INFO] [stdout] 506 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 512 | |     pub max_power: u8
[INFO] [stdout] 513 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:540:1
[INFO] [stdout]     |
[INFO] [stdout] 540 | / #[repr(C, packed)]
[INFO] [stdout] 541 | | pub struct InterfaceDescriptor {
[INFO] [stdout] 542 | |     pub length: u8,
[INFO] [stdout] 543 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 550 | |     pub interface_str_id: StringId,
[INFO] [stdout] 551 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:578:1
[INFO] [stdout]     |
[INFO] [stdout] 578 | / #[repr(C, packed)]
[INFO] [stdout] 579 | | pub struct EndpointDescriptor {
[INFO] [stdout] 580 | |     pub length: u8,
[INFO] [stdout] 581 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 585 | |     pub interval: u8,
[INFO] [stdout] 586 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:607:12
[INFO] [stdout]     |
[INFO] [stdout] 607 |     Device(DeviceDescriptor),
[INFO] [stdout]     |     ------ ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 607 -     Device(DeviceDescriptor),
[INFO] [stdout] 607 +     Device(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:611:11
[INFO] [stdout]     |
[INFO] [stdout] 611 |     Other(DescriptorType)
[INFO] [stdout]     |     ----- ^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 611 -     Other(DescriptorType)
[INFO] [stdout] 611 +     Other(())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/expander/mod.rs:38:21
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn expander(&self) -> RefMut<Expander> {
[INFO] [stdout]    |                     ^^^^^     ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn expander(&self) -> RefMut<'_, Expander> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 19s
[INFO] running `Command { std: "docker" "inspect" "cd36cdd025660c253fe4b0102b101f02ae68309f158ba8b70d5285d395aa370c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd36cdd025660c253fe4b0102b101f02ae68309f158ba8b70d5285d395aa370c", kill_on_drop: false }`
[INFO] [stdout] cd36cdd025660c253fe4b0102b101f02ae68309f158ba8b70d5285d395aa370c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cef3c6438f8b0c50b377e4725284063fb4c9e2aec1805d589c4352a949ac74fc
[INFO] running `Command { std: "docker" "start" "-a" "cef3c6438f8b0c50b377e4725284063fb4c9e2aec1805d589c4352a949ac74fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/capture.rs:232:12
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub struct Device {
[INFO] [stdout]     |            ^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/capture.rs:231:1
[INFO] [stdout]     |
[INFO] [stdout] 231 | / #[repr(C)]
[INFO] [stdout] 232 | | pub struct Device {
[INFO] [stdout] 233 | |     pub address: DeviceAddr,
[INFO] [stdout] 234 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/capture.rs:239:16
[INFO] [stdout]     |
[INFO] [stdout] 239 |     pub struct Endpoint(u64);
[INFO] [stdout]     |                ^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/capture.rs:265:16
[INFO] [stdout]     |
[INFO] [stdout] 265 |     pub struct TransferIndexEntry(u64);
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | / #[repr(transparent)]
[INFO] [stdout] 43 | | pub struct DeviceAddr(pub u8);
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:47:1
[INFO] [stdout]    |
[INFO] [stdout] 47 | / #[repr(transparent)]
[INFO] [stdout] 48 | | pub struct DeviceField(pub u8);
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:52:1
[INFO] [stdout]    |
[INFO] [stdout] 52 | / #[repr(transparent)]
[INFO] [stdout] 53 | | pub struct StringId(pub u8);
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:57:1
[INFO] [stdout]    |
[INFO] [stdout] 57 | / #[repr(transparent)]
[INFO] [stdout] 58 | | pub struct ConfigNum(pub u8);
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:62:1
[INFO] [stdout]    |
[INFO] [stdout] 62 | / #[repr(transparent)]
[INFO] [stdout] 63 | | pub struct ConfigField(pub u8);
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | / #[repr(transparent)]
[INFO] [stdout] 68 | | pub struct InterfaceNum(pub u8);
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:72:1
[INFO] [stdout]    |
[INFO] [stdout] 72 | / #[repr(transparent)]
[INFO] [stdout] 73 | | pub struct InterfaceField(pub u8);
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:77:1
[INFO] [stdout]    |
[INFO] [stdout] 77 | / #[repr(transparent)]
[INFO] [stdout] 78 | | pub struct InterfaceEpNum(pub u8);
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:82:1
[INFO] [stdout]    |
[INFO] [stdout] 82 | / #[repr(transparent)]
[INFO] [stdout] 83 | | pub struct EndpointNum(pub u8);
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:87:1
[INFO] [stdout]    |
[INFO] [stdout] 87 | / #[repr(transparent)]
[INFO] [stdout] 88 | | pub struct EndpointField(pub u8);
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:92:1
[INFO] [stdout]    |
[INFO] [stdout] 92 | / #[repr(transparent)]
[INFO] [stdout] 93 | | pub struct EndpointAddr(pub u8);
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:115:1
[INFO] [stdout]     |
[INFO] [stdout] 115 | / #[repr(transparent)]
[INFO] [stdout] 116 | | pub struct EndpointAttr(pub u8);
[INFO] [stdout]     | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:136:12
[INFO] [stdout]     |
[INFO] [stdout] 136 | pub struct BCDVersion {
[INFO] [stdout]     |            ^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:135:1
[INFO] [stdout]     |
[INFO] [stdout] 135 | / #[repr(C)]
[INFO] [stdout] 136 | | pub struct BCDVersion {
[INFO] [stdout] 137 | |     pub minor: u8,
[INFO] [stdout] 138 | |     pub major: u8,
[INFO] [stdout] 139 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:283:16
[INFO] [stdout]     |
[INFO] [stdout] 283 |     pub struct RequestTypeFields(u8);
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:451:12
[INFO] [stdout]     |
[INFO] [stdout] 451 | pub struct DeviceDescriptor {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:450:1
[INFO] [stdout]     |
[INFO] [stdout] 450 | / #[repr(C)]
[INFO] [stdout] 451 | | pub struct DeviceDescriptor {
[INFO] [stdout] 452 | |     pub length: u8,
[INFO] [stdout] 453 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 465 | |     pub num_configurations: u8
[INFO] [stdout] 466 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:503:1
[INFO] [stdout]     |
[INFO] [stdout] 503 | / #[repr(C, packed)]
[INFO] [stdout] 504 | | pub struct ConfigDescriptor {
[INFO] [stdout] 505 | |     pub length: u8,
[INFO] [stdout] 506 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 512 | |     pub max_power: u8
[INFO] [stdout] 513 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:540:1
[INFO] [stdout]     |
[INFO] [stdout] 540 | / #[repr(C, packed)]
[INFO] [stdout] 541 | | pub struct InterfaceDescriptor {
[INFO] [stdout] 542 | |     pub length: u8,
[INFO] [stdout] 543 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 550 | |     pub interface_str_id: StringId,
[INFO] [stdout] 551 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:578:1
[INFO] [stdout]     |
[INFO] [stdout] 578 | / #[repr(C, packed)]
[INFO] [stdout] 579 | | pub struct EndpointDescriptor {
[INFO] [stdout] 580 | |     pub length: u8,
[INFO] [stdout] 581 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 585 | |     pub interval: u8,
[INFO] [stdout] 586 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:607:12
[INFO] [stdout]     |
[INFO] [stdout] 607 |     Device(DeviceDescriptor),
[INFO] [stdout]     |     ------ ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 607 -     Device(DeviceDescriptor),
[INFO] [stdout] 607 +     Device(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:611:11
[INFO] [stdout]     |
[INFO] [stdout] 611 |     Other(DescriptorType)
[INFO] [stdout]     |     ----- ^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 611 -     Other(DescriptorType)
[INFO] [stdout] 611 +     Other(())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/expander/mod.rs:38:21
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn expander(&self) -> RefMut<Expander> {
[INFO] [stdout]    |                     ^^^^^     ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn expander(&self) -> RefMut<'_, Expander> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling packetry v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/capture.rs:232:12
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub struct Device {
[INFO] [stdout]     |            ^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/capture.rs:231:1
[INFO] [stdout]     |
[INFO] [stdout] 231 | / #[repr(C)]
[INFO] [stdout] 232 | | pub struct Device {
[INFO] [stdout] 233 | |     pub address: DeviceAddr,
[INFO] [stdout] 234 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/capture.rs:239:16
[INFO] [stdout]     |
[INFO] [stdout] 239 |     pub struct Endpoint(u64);
[INFO] [stdout]     |                ^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/capture.rs:265:16
[INFO] [stdout]     |
[INFO] [stdout] 265 |     pub struct TransferIndexEntry(u64);
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/data_stream.rs:180:12
[INFO] [stdout]     |
[INFO] [stdout] 180 |     struct Foo {
[INFO] [stdout]     |            ^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/data_stream.rs:179:5
[INFO] [stdout]     |
[INFO] [stdout] 179 | /     #[repr(C)]
[INFO] [stdout] 180 | |     struct Foo {
[INFO] [stdout] 181 | |         bar: u32,
[INFO] [stdout] 182 | |         baz: u32,
[INFO] [stdout] 183 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | / #[repr(transparent)]
[INFO] [stdout] 43 | | pub struct DeviceAddr(pub u8);
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:47:1
[INFO] [stdout]    |
[INFO] [stdout] 47 | / #[repr(transparent)]
[INFO] [stdout] 48 | | pub struct DeviceField(pub u8);
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:52:1
[INFO] [stdout]    |
[INFO] [stdout] 52 | / #[repr(transparent)]
[INFO] [stdout] 53 | | pub struct StringId(pub u8);
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:57:1
[INFO] [stdout]    |
[INFO] [stdout] 57 | / #[repr(transparent)]
[INFO] [stdout] 58 | | pub struct ConfigNum(pub u8);
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:62:1
[INFO] [stdout]    |
[INFO] [stdout] 62 | / #[repr(transparent)]
[INFO] [stdout] 63 | | pub struct ConfigField(pub u8);
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | / #[repr(transparent)]
[INFO] [stdout] 68 | | pub struct InterfaceNum(pub u8);
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:72:1
[INFO] [stdout]    |
[INFO] [stdout] 72 | / #[repr(transparent)]
[INFO] [stdout] 73 | | pub struct InterfaceField(pub u8);
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:77:1
[INFO] [stdout]    |
[INFO] [stdout] 77 | / #[repr(transparent)]
[INFO] [stdout] 78 | | pub struct InterfaceEpNum(pub u8);
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:82:1
[INFO] [stdout]    |
[INFO] [stdout] 82 | / #[repr(transparent)]
[INFO] [stdout] 83 | | pub struct EndpointNum(pub u8);
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:87:1
[INFO] [stdout]    |
[INFO] [stdout] 87 | / #[repr(transparent)]
[INFO] [stdout] 88 | | pub struct EndpointField(pub u8);
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/usb.rs:92:1
[INFO] [stdout]    |
[INFO] [stdout] 92 | / #[repr(transparent)]
[INFO] [stdout] 93 | | pub struct EndpointAddr(pub u8);
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:115:1
[INFO] [stdout]     |
[INFO] [stdout] 115 | / #[repr(transparent)]
[INFO] [stdout] 116 | | pub struct EndpointAttr(pub u8);
[INFO] [stdout]     | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:136:12
[INFO] [stdout]     |
[INFO] [stdout] 136 | pub struct BCDVersion {
[INFO] [stdout]     |            ^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:135:1
[INFO] [stdout]     |
[INFO] [stdout] 135 | / #[repr(C)]
[INFO] [stdout] 136 | | pub struct BCDVersion {
[INFO] [stdout] 137 | |     pub minor: u8,
[INFO] [stdout] 138 | |     pub major: u8,
[INFO] [stdout] 139 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:283:16
[INFO] [stdout]     |
[INFO] [stdout] 283 |     pub struct RequestTypeFields(u8);
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:451:12
[INFO] [stdout]     |
[INFO] [stdout] 451 | pub struct DeviceDescriptor {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:450:1
[INFO] [stdout]     |
[INFO] [stdout] 450 | / #[repr(C)]
[INFO] [stdout] 451 | | pub struct DeviceDescriptor {
[INFO] [stdout] 452 | |     pub length: u8,
[INFO] [stdout] 453 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 465 | |     pub num_configurations: u8
[INFO] [stdout] 466 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:503:1
[INFO] [stdout]     |
[INFO] [stdout] 503 | / #[repr(C, packed)]
[INFO] [stdout] 504 | | pub struct ConfigDescriptor {
[INFO] [stdout] 505 | |     pub length: u8,
[INFO] [stdout] 506 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 512 | |     pub max_power: u8
[INFO] [stdout] 513 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:540:1
[INFO] [stdout]     |
[INFO] [stdout] 540 | / #[repr(C, packed)]
[INFO] [stdout] 541 | | pub struct InterfaceDescriptor {
[INFO] [stdout] 542 | |     pub length: u8,
[INFO] [stdout] 543 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 550 | |     pub interface_str_id: StringId,
[INFO] [stdout] 551 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:578:1
[INFO] [stdout]     |
[INFO] [stdout] 578 | / #[repr(C, packed)]
[INFO] [stdout] 579 | | pub struct EndpointDescriptor {
[INFO] [stdout] 580 | |     pub length: u8,
[INFO] [stdout] 581 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 585 | |     pub interval: u8,
[INFO] [stdout] 586 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:607:12
[INFO] [stdout]     |
[INFO] [stdout] 607 |     Device(DeviceDescriptor),
[INFO] [stdout]     |     ------ ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 607 -     Device(DeviceDescriptor),
[INFO] [stdout] 607 +     Device(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:611:11
[INFO] [stdout]     |
[INFO] [stdout] 611 |     Other(DescriptorType)
[INFO] [stdout]     |     ----- ^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 611 -     Other(DescriptorType)
[INFO] [stdout] 611 +     Other(())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/expander/mod.rs:38:21
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn expander(&self) -> RefMut<Expander> {
[INFO] [stdout]    |                     ^^^^^     ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn expander(&self) -> RefMut<'_, Expander> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 13.61s
[INFO] running `Command { std: "docker" "inspect" "cef3c6438f8b0c50b377e4725284063fb4c9e2aec1805d589c4352a949ac74fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cef3c6438f8b0c50b377e4725284063fb4c9e2aec1805d589c4352a949ac74fc", kill_on_drop: false }`
[INFO] [stdout] cef3c6438f8b0c50b377e4725284063fb4c9e2aec1805d589c4352a949ac74fc
