[INFO] cloning repository https://github.com/kentfredric/powerctl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kentfredric/powerctl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkentfredric%2Fpowerctl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkentfredric%2Fpowerctl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 631c2cbe244ee5937cf38c93e2dd70051860636b
[INFO] checking kentfredric/powerctl against e3607d549209cc9fdfe7e907123b4185210e2c2b for pr-158915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkentfredric%2Fpowerctl" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/kentfredric/powerctl
[INFO] finished tweaking git repo https://github.com/kentfredric/powerctl
[INFO] tweaked toml for git repo https://github.com/kentfredric/powerctl written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kentfredric/powerctl on toolchain e3607d549209cc9fdfe7e907123b4185210e2c2b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kentfredric/powerctl 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" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking kentfredric/powerctl against e3607d549209cc9fdfe7e907123b4185210e2c2b for pr-158915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkentfredric%2Fpowerctl" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/kentfredric/powerctl
[INFO] finished tweaking git repo https://github.com/kentfredric/powerctl
[INFO] tweaked toml for git repo https://github.com/kentfredric/powerctl written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kentfredric/powerctl on toolchain e3607d549209cc9fdfe7e907123b4185210e2c2b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kentfredric/powerctl 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" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 0dd80d213e6321bf4bf9ee8c5ad7ad999383a3551412b5bd20a0354893405c05
[INFO] running `Command { std: "docker" "start" "0dd80d213e6321bf4bf9ee8c5ad7ad999383a3551412b5bd20a0354893405c05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dd80d213e6321bf4bf9ee8c5ad7ad999383a3551412b5bd20a0354893405c05", 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" "0dd80d213e6321bf4bf9ee8c5ad7ad999383a3551412b5bd20a0354893405c05" "/opt/rustwide/cargo-home/bin/cargo" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dd80d213e6321bf4bf9ee8c5ad7ad999383a3551412b5bd20a0354893405c05", 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" "0dd80d213e6321bf4bf9ee8c5ad7ad999383a3551412b5bd20a0354893405c05" "/opt/rustwide/cargo-home/bin/cargo" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking powerctrl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0437]: type `Error` is not a member of trait `Try`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     type Error = E;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0437]: type `Ok` is not a member of trait `Try`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     type Ok = Option<T>;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `into_result` is not a member of trait `Try`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 | /     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout] 80 | |         match self {
[INFO] [stdout] 81 | |             Maybe::Some(t) => Ok(Some(t)),
[INFO] [stdout] 82 | |             Maybe::None => Ok(None),
[INFO] [stdout] ...  |
[INFO] [stdout] 85 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_error` is not a member of trait `Try`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     fn from_error(v: Self::Error) -> Self { Maybe::Err(v) }
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_ok` is not a member of trait `Try`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | /     fn from_ok(v: Self::Ok) -> Self {
[INFO] [stdout] 90 | |         match v {
[INFO] [stdout] 91 | |             Some(t) => Maybe::Some(t),
[INFO] [stdout] 92 | |             None => Maybe::None,
[INFO] [stdout] 93 | |         }
[INFO] [stdout] 94 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: feature `try_trait` has been renamed to `try_trait_v2`
[INFO] [stdout]  --> libpowerctl/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_trait)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `try_trait_v2`
[INFO] [stdout]  --> libpowerctl/src/maybe.rs:6:41
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{convert::TryInto, fmt::Debug, ops::Try};
[INFO] [stdout]   |                                         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #84277 <https://github.com/rust-lang/rust/issues/84277> for more information
[INFO] [stdout]   = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2026-09-07; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `try_trait_v2`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | impl<T, E> Try for Maybe<T, E> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #84277 <https://github.com/rust-lang/rust/issues/84277> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-09-07; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0437]: type `Error` is not a member of trait `Try`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     type Error = E;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0437]: type `Ok` is not a member of trait `Try`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     type Ok = Option<T>;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `into_result` is not a member of trait `Try`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 | /     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout] 80 | |         match self {
[INFO] [stdout] 81 | |             Maybe::Some(t) => Ok(Some(t)),
[INFO] [stdout] 82 | |             Maybe::None => Ok(None),
[INFO] [stdout] ...  |
[INFO] [stdout] 85 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_error` is not a member of trait `Try`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     fn from_error(v: Self::Error) -> Self { Maybe::Err(v) }
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_ok` is not a member of trait `Try`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | /     fn from_ok(v: Self::Ok) -> Self {
[INFO] [stdout] 90 | |         match v {
[INFO] [stdout] 91 | |             Some(t) => Maybe::Some(t),
[INFO] [stdout] 92 | |             None => Maybe::None,
[INFO] [stdout] 93 | |         }
[INFO] [stdout] 94 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Ok` not found for `Self`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:79:42
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]    |                                          ^^ associated type `Ok` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `Self`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:79:52
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]    |                                                    ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `Self`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:87:28
[INFO] [stdout]    |
[INFO] [stdout] 87 |     fn from_error(v: Self::Error) -> Self { Maybe::Err(v) }
[INFO] [stdout]    |                            ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Ok` not found for `Self`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:89:25
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn from_ok(v: Self::Ok) -> Self {
[INFO] [stdout]    |                         ^^ associated type `Ok` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `Output`, `Residual`, `from_output`, `branch`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:75:1
[INFO] [stdout]    |
[INFO] [stdout] 75 | impl<T, E> Try for Maybe<T, E> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `Output`, `Residual`, `from_output`, `branch` in implementation
[INFO] [stdout]    |
[INFO] [stdout]    = help: implement the missing item: `type Output = /* Type */;` (unstable, requires feature `try_trait_v2`)
[INFO] [stdout]    = help: implement the missing item: `type Residual = /* Type */;` (unstable, requires feature `try_trait_v2`)
[INFO] [stdout]    = help: implement the missing item: `fn from_output(_: <Self as Try>::Output) -> Self { todo!() }` (unstable, requires feature `try_trait_v2`)
[INFO] [stdout]    = help: implement the missing item: `fn branch(self) -> ControlFlow<<Self as Try>::Residual, <Self as Try>::Output> { todo!() }` (unstable, requires feature `try_trait_v2`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: feature `try_trait` has been renamed to `try_trait_v2`
[INFO] [stdout]  --> libpowerctl/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_trait)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `try_trait_v2`
[INFO] [stdout]  --> libpowerctl/src/maybe.rs:6:41
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{convert::TryInto, fmt::Debug, ops::Try};
[INFO] [stdout]   |                                         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #84277 <https://github.com/rust-lang/rust/issues/84277> for more information
[INFO] [stdout]   = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2026-09-07; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `try_trait_v2`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | impl<T, E> Try for Maybe<T, E> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #84277 <https://github.com/rust-lang/rust/issues/84277> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-09-07; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Ok` not found for `Self`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:79:42
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]    |                                          ^^ associated type `Ok` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `Self`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:79:52
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]    |                                                    ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `Self`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:87:28
[INFO] [stdout]    |
[INFO] [stdout] 87 |     fn from_error(v: Self::Error) -> Self { Maybe::Err(v) }
[INFO] [stdout]    |                            ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Ok` not found for `Self`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:89:25
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn from_ok(v: Self::Ok) -> Self {
[INFO] [stdout]    |                         ^^ associated type `Ok` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> libpowerctl/src/hwmon.rs:38:39
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn extras(&self) -> Maybe<Vec<OutPairs>, Error> {
[INFO] [stdout]    |     ----------------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 37 |         Maybe::Some(vec![
[INFO] [stdout] 38 |             self.temp(1).emit_output()?,
[INFO] [stdout]    |                                       ^ cannot use the `?` operator in a method that returns `Maybe<Vec<OutPairs>, std::io::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> libpowerctl/src/hwmon.rs:39:39
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn extras(&self) -> Maybe<Vec<OutPairs>, Error> {
[INFO] [stdout]    |     ----------------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 39 |             self.temp(2).emit_output()?,
[INFO] [stdout]    |                                       ^ cannot use the `?` operator in a method that returns `Maybe<Vec<OutPairs>, std::io::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> libpowerctl/src/hwmon.rs:40:39
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn extras(&self) -> Maybe<Vec<OutPairs>, Error> {
[INFO] [stdout]    |     ----------------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 40 |             self.temp(3).emit_output()?,
[INFO] [stdout]    |                                       ^ cannot use the `?` operator in a method that returns `Maybe<Vec<OutPairs>, std::io::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `Output`, `Residual`, `from_output`, `branch`
[INFO] [stdout]   --> libpowerctl/src/maybe.rs:75:1
[INFO] [stdout]    |
[INFO] [stdout] 75 | impl<T, E> Try for Maybe<T, E> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `Output`, `Residual`, `from_output`, `branch` in implementation
[INFO] [stdout]    |
[INFO] [stdout]    = help: implement the missing item: `type Output = /* Type */;` (unstable, requires feature `try_trait_v2`)
[INFO] [stdout]    = help: implement the missing item: `type Residual = /* Type */;` (unstable, requires feature `try_trait_v2`)
[INFO] [stdout]    = help: implement the missing item: `fn from_output(_: <Self as Try>::Output) -> Self { todo!() }` (unstable, requires feature `try_trait_v2`)
[INFO] [stdout]    = help: implement the missing item: `fn branch(self) -> ControlFlow<<Self as Try>::Residual, <Self as Try>::Output> { todo!() }` (unstable, requires feature `try_trait_v2`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0046, E0220, E0277, E0407, E0437, E0635, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0046`.
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> libpowerctl/src/hwmon.rs:38:39
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn extras(&self) -> Maybe<Vec<OutPairs>, Error> {
[INFO] [stdout]    |     ----------------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 37 |         Maybe::Some(vec![
[INFO] [stdout] 38 |             self.temp(1).emit_output()?,
[INFO] [stdout]    |                                       ^ cannot use the `?` operator in a method that returns `Maybe<Vec<OutPairs>, std::io::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> libpowerctl/src/hwmon.rs:39:39
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn extras(&self) -> Maybe<Vec<OutPairs>, Error> {
[INFO] [stdout]    |     ----------------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 39 |             self.temp(2).emit_output()?,
[INFO] [stdout]    |                                       ^ cannot use the `?` operator in a method that returns `Maybe<Vec<OutPairs>, std::io::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `powerctrl` (lib test) due to 16 previous errors
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> libpowerctl/src/hwmon.rs:40:39
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn extras(&self) -> Maybe<Vec<OutPairs>, Error> {
[INFO] [stdout]    |     ----------------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 40 |             self.temp(3).emit_output()?,
[INFO] [stdout]    |                                       ^ cannot use the `?` operator in a method that returns `Maybe<Vec<OutPairs>, std::io::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] Some errors have detailed explanations: E0046, E0220, E0277, E0407, E0437, E0635, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0046`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `powerctrl` (lib) due to 16 previous errors
[INFO] running `Command { std: "docker" "inspect" "0dd80d213e6321bf4bf9ee8c5ad7ad999383a3551412b5bd20a0354893405c05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dd80d213e6321bf4bf9ee8c5ad7ad999383a3551412b5bd20a0354893405c05", kill_on_drop: false }`
[INFO] [stdout] 0dd80d213e6321bf4bf9ee8c5ad7ad999383a3551412b5bd20a0354893405c05
