[INFO] cloning repository https://github.com/synchronal/medic-ext-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/synchronal/medic-ext-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsynchronal%2Fmedic-ext-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsynchronal%2Fmedic-ext-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 077ec25bfc8a828869b9002f2804037b71f0fe84
[INFO] checking synchronal/medic-ext-rust against 8773d2c75a8e90130dcce745a7ec4e66bb9963db+rustflags=-Aunfulfilled-lint-expectations for pr-163637
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsynchronal%2Fmedic-ext-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/synchronal/medic-ext-rust
[INFO] finished tweaking git repo https://github.com/synchronal/medic-ext-rust
[INFO] tweaked toml for git repo https://github.com/synchronal/medic-ext-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/synchronal/medic-ext-rust on toolchain 8773d2c75a8e90130dcce745a7ec4e66bb9963db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8773d2c75a8e90130dcce745a7ec4e66bb9963db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/synchronal/medic-ext-rust 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" "+8773d2c75a8e90130dcce745a7ec4e66bb9963db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1239090c0479762d787689cea5a4c85549e2a322a6fa232f44a359dc38f2a75c
[INFO] running `Command { std: "docker" "start" "1239090c0479762d787689cea5a4c85549e2a322a6fa232f44a359dc38f2a75c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1239090c0479762d787689cea5a4c85549e2a322a6fa232f44a359dc38f2a75c", 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" "1239090c0479762d787689cea5a4c85549e2a322a6fa232f44a359dc38f2a75c" "/opt/rustwide/cargo-home/bin/cargo" "+8773d2c75a8e90130dcce745a7ec4e66bb9963db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1239090c0479762d787689cea5a4c85549e2a322a6fa232f44a359dc38f2a75c", 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 -Aunfulfilled-lint-expectations" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1239090c0479762d787689cea5a4c85549e2a322a6fa232f44a359dc38f2a75c" "/opt/rustwide/cargo-home/bin/cargo" "+8773d2c75a8e90130dcce745a7ec4e66bb9963db" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]     Checking bit-vec v0.8.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]     Checking which v8.0.2
[INFO] [stderr]     Checking bit-set v0.8.0
[INFO] [stderr]     Checking terminal_size v0.4.4
[INFO] [stderr]     Checking clap_builder v4.6.0
[INFO] [stderr]     Checking fancy-regex v0.18.0
[INFO] [stderr]     Checking regex v1.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling clap_derive v4.6.1
[INFO] [stderr]     Checking clap v4.6.1
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking medic-lib v0.3.0
[INFO] [stderr]     Checking medic-outdated-rust v1.1.0 (/opt/rustwide/workdir/medic-outdated-rust)
[INFO] [stderr]     Checking medic-step-rust v1.1.0 (/opt/rustwide/workdir/medic-step-rust)
[INFO] [stderr]     Checking medic-check-rust v1.1.0 (/opt/rustwide/workdir/medic-check-rust)
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::Try` is not satisfied
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     cargo_exists()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^-
[INFO] [stdout]    |     |
[INFO] [stdout]    |     the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::FromResidual<_>` is not satisfied
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     cargo_exists()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^-
[INFO] [stdout]    |     |
[INFO] [stdout]    |     the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] note: required by a bound in `ops::try_trait_old::Try::branch`
[INFO] [stdout]   --> /rustc/8773d2c75a8e90130dcce745a7ec4e66bb9963db/library/core/src/ops/try_trait_old.rs:54:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `ops::try_trait_old::FromResidual`)
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:37:19
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn cargo_audit() -> CheckResult {
[INFO] [stdout]    | ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 37 |     cargo_exists()?;
[INFO] [stdout]    |                   ^ cannot use the `?` operator in a function that returns `CheckResult`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::Try` is not satisfied
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     maybe_install_cargo_audit()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stdout]    |     |
[INFO] [stdout]    |     the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::FromResidual<_>` is not satisfied
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     maybe_install_cargo_audit()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stdout]    |     |
[INFO] [stdout]    |     the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] note: required by a bound in `ops::try_trait_old::Try::branch`
[INFO] [stdout]   --> /rustc/8773d2c75a8e90130dcce745a7ec4e66bb9963db/library/core/src/ops/try_trait_old.rs:54:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `ops::try_trait_old::FromResidual`)
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:38:32
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn cargo_audit() -> CheckResult {
[INFO] [stdout]    | ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 37 |     cargo_exists()?;
[INFO] [stdout] 38 |     maybe_install_cargo_audit()?;
[INFO] [stdout]    |                                ^ cannot use the `?` operator in a function that returns `CheckResult`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be applied to values that implement `ops::try_trait_old::Try`
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     cargo_exists()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `CheckResult`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be applied to values that implement `ops::try_trait_old::Try`
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     maybe_install_cargo_audit()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `CheckResult`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::Try` is not satisfied
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     cargo_exists()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^-
[INFO] [stdout]    |     |
[INFO] [stdout]    |     the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::FromResidual<_>` is not satisfied
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     cargo_exists()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^-
[INFO] [stdout]    |     |
[INFO] [stdout]    |     the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] note: required by a bound in `ops::try_trait_old::Try::branch`
[INFO] [stdout]   --> /rustc/8773d2c75a8e90130dcce745a7ec4e66bb9963db/library/core/src/ops/try_trait_old.rs:54:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `ops::try_trait_old::FromResidual`)
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:69:19
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub fn check_formatting() -> CheckResult {
[INFO] [stdout]    | ---------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 69 |     cargo_exists()?;
[INFO] [stdout]    |                   ^ cannot use the `?` operator in a function that returns `CheckResult`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be applied to values that implement `ops::try_trait_old::Try`
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     cargo_exists()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `CheckResult`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::Try` is not satisfied
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     cargo_exists()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^-
[INFO] [stdout]    |     |
[INFO] [stdout]    |     the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::FromResidual<_>` is not satisfied
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     cargo_exists()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^-
[INFO] [stdout]    |     |
[INFO] [stdout]    |     the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] note: required by a bound in `ops::try_trait_old::Try::branch`
[INFO] [stdout]   --> /rustc/8773d2c75a8e90130dcce745a7ec4e66bb9963db/library/core/src/ops/try_trait_old.rs:54:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `ops::try_trait_old::FromResidual`)
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:90:19
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub fn crate_installed(names: Vec<String>) -> CheckResult {
[INFO] [stdout]    | --------------------------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 90 |     cargo_exists()?;
[INFO] [stdout]    |                   ^ cannot use the `?` operator in a function that returns `CheckResult`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be applied to values that implement `ops::try_trait_old::Try`
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     cargo_exists()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `CheckResult`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::Try` is not satisfied
[INFO] [stdout]    --> medic-check-rust/src/lib.rs:164:5
[INFO] [stdout]     |
[INFO] [stdout] 164 |     rustup_exists()?;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^-
[INFO] [stdout]     |     |
[INFO] [stdout]     |     the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]     |     required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::FromResidual<_>` is not satisfied
[INFO] [stdout]    --> medic-check-rust/src/lib.rs:164:5
[INFO] [stdout]     |
[INFO] [stdout] 164 |     rustup_exists()?;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^-
[INFO] [stdout]     |     |
[INFO] [stdout]     |     the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]     |     required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] note: required by a bound in `ops::try_trait_old::Try::branch`
[INFO] [stdout]    --> /rustc/8773d2c75a8e90130dcce745a7ec4e66bb9963db/library/core/src/ops/try_trait_old.rs:54:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `ops::try_trait_old::FromResidual`)
[INFO] [stdout]    --> medic-check-rust/src/lib.rs:164:20
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn target_installed(targets: Vec<String>) -> CheckResult {
[INFO] [stdout]     | ------------------------------------------------------------ this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 164 |     rustup_exists()?;
[INFO] [stdout]     |                    ^ cannot use the `?` operator in a function that returns `CheckResult`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]     = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be applied to values that implement `ops::try_trait_old::Try`
[INFO] [stdout]    --> medic-check-rust/src/lib.rs:164:5
[INFO] [stdout]     |
[INFO] [stdout] 164 |     rustup_exists()?;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `CheckResult`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]     = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `StepResult: ops::try_trait_old::Try` is not satisfied
[INFO] [stdout]  --> medic-step-rust/src/main.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 |         Command::Clippy => medic_step_rust::run_clippy()?,
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stdout]   |                            |
[INFO] [stdout]   |                            the trait `ops::try_trait_old::Try` is not implemented for `StepResult`
[INFO] [stdout]   |                            required by a bound introduced by this call
[INFO] [stdout]   |
[INFO] [stdout]   = note: `StepResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `StepResult: ops::try_trait_old::FromResidual<_>` is not satisfied
[INFO] [stdout]  --> medic-step-rust/src/main.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 |         Command::Clippy => medic_step_rust::run_clippy()?,
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stdout]   |                            |
[INFO] [stdout]   |                            the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `StepResult`
[INFO] [stdout]   |                            required by a bound introduced by this call
[INFO] [stdout]   |
[INFO] [stdout]   = note: `StepResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] note: required by a bound in `ops::try_trait_old::Try::branch`
[INFO] [stdout]  --> /rustc/8773d2c75a8e90130dcce745a7ec4e66bb9963db/library/core/src/ops/try_trait_old.rs:54:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `ops::try_trait_old::FromResidual`)
[INFO] [stdout]  --> medic-step-rust/src/main.rs:7:57
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() -> StepResult {
[INFO] [stdout]   | ----------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 |         Command::Clippy => medic_step_rust::run_clippy()?,
[INFO] [stdout]   |                                                         ^ cannot use the `?` operator in a function that returns `StepResult`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `StepResult`
[INFO] [stdout]   = note: `StepResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `StepResult: ops::try_trait_old::Try` is not satisfied
[INFO] [stdout]  --> medic-step-rust/src/main.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 |         Command::Test => medic_step_rust::run_tests()?,
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stdout]   |                          |
[INFO] [stdout]   |                          the trait `ops::try_trait_old::Try` is not implemented for `StepResult`
[INFO] [stdout]   |                          required by a bound introduced by this call
[INFO] [stdout]   |
[INFO] [stdout]   = note: `StepResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `StepResult: ops::try_trait_old::FromResidual<_>` is not satisfied
[INFO] [stdout]  --> medic-step-rust/src/main.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 |         Command::Test => medic_step_rust::run_tests()?,
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stdout]   |                          |
[INFO] [stdout]   |                          the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `StepResult`
[INFO] [stdout]   |                          required by a bound introduced by this call
[INFO] [stdout]   |
[INFO] [stdout]   = note: `StepResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] note: required by a bound in `ops::try_trait_old::Try::branch`
[INFO] [stdout]  --> /rustc/8773d2c75a8e90130dcce745a7ec4e66bb9963db/library/core/src/ops/try_trait_old.rs:54:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `ops::try_trait_old::FromResidual`)
[INFO] [stdout]  --> medic-step-rust/src/main.rs:8:54
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() -> StepResult {
[INFO] [stdout]   | ----------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 8 |         Command::Test => medic_step_rust::run_tests()?,
[INFO] [stdout]   |                                                      ^ cannot use the `?` operator in a function that returns `StepResult`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `StepResult`
[INFO] [stdout]   = note: `StepResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be applied to values that implement `ops::try_trait_old::Try`
[INFO] [stdout]  --> medic-step-rust/src/main.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 |         Command::Clippy => medic_step_rust::run_clippy()?,
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `StepResult`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `ops::try_trait_old::Try` is not implemented for `StepResult`
[INFO] [stdout]   = note: `StepResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be applied to values that implement `ops::try_trait_old::Try`
[INFO] [stdout]  --> medic-step-rust/src/main.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 |         Command::Test => medic_step_rust::run_tests()?,
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `StepResult`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `ops::try_trait_old::Try` is not implemented for `StepResult`
[INFO] [stdout]   = note: `StepResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `StepResult: ops::try_trait_old::Try` is not satisfied
[INFO] [stdout]  --> medic-step-rust/src/main.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 |         Command::Clippy => medic_step_rust::run_clippy()?,
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stdout]   |                            |
[INFO] [stdout]   |                            the trait `ops::try_trait_old::Try` is not implemented for `StepResult`
[INFO] [stdout]   |                            required by a bound introduced by this call
[INFO] [stdout]   |
[INFO] [stdout]   = note: `StepResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `StepResult: ops::try_trait_old::FromResidual<_>` is not satisfied
[INFO] [stdout]  --> medic-step-rust/src/main.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 |         Command::Clippy => medic_step_rust::run_clippy()?,
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stdout]   |                            |
[INFO] [stdout]   |                            the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `StepResult`
[INFO] [stdout]   |                            required by a bound introduced by this call
[INFO] [stdout]   |
[INFO] [stdout]   = note: `StepResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] note: required by a bound in `ops::try_trait_old::Try::branch`
[INFO] [stdout]  --> /rustc/8773d2c75a8e90130dcce745a7ec4e66bb9963db/library/core/src/ops/try_trait_old.rs:54:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `ops::try_trait_old::FromResidual`)
[INFO] [stdout]  --> medic-step-rust/src/main.rs:7:57
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() -> StepResult {
[INFO] [stdout]   | ----------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 |         Command::Clippy => medic_step_rust::run_clippy()?,
[INFO] [stdout]   |                                                         ^ cannot use the `?` operator in a function that returns `StepResult`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `StepResult`
[INFO] [stdout]   = note: `StepResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `StepResult: ops::try_trait_old::Try` is not satisfied
[INFO] [stdout]  --> medic-step-rust/src/main.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 |         Command::Test => medic_step_rust::run_tests()?,
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stdout]   |                          |
[INFO] [stdout]   |                          the trait `ops::try_trait_old::Try` is not implemented for `StepResult`
[INFO] [stdout]   |                          required by a bound introduced by this call
[INFO] [stdout]   |
[INFO] [stdout]   = note: `StepResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `medic-check-rust` (lib) due to 20 previous errors
[INFO] [stdout] error[E0277]: the trait bound `StepResult: ops::try_trait_old::FromResidual<_>` is not satisfied
[INFO] [stdout]  --> medic-step-rust/src/main.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 |         Command::Test => medic_step_rust::run_tests()?,
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stdout]   |                          |
[INFO] [stdout]   |                          the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `StepResult`
[INFO] [stdout]   |                          required by a bound introduced by this call
[INFO] [stdout]   |
[INFO] [stdout]   = note: `StepResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] note: required by a bound in `ops::try_trait_old::Try::branch`
[INFO] [stdout]  --> /rustc/8773d2c75a8e90130dcce745a7ec4e66bb9963db/library/core/src/ops/try_trait_old.rs:54:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `ops::try_trait_old::FromResidual`)
[INFO] [stdout]  --> medic-step-rust/src/main.rs:8:54
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() -> StepResult {
[INFO] [stdout]   | ----------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 8 |         Command::Test => medic_step_rust::run_tests()?,
[INFO] [stdout]   |                                                      ^ cannot use the `?` operator in a function that returns `StepResult`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `StepResult`
[INFO] [stdout]   = note: `StepResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be applied to values that implement `ops::try_trait_old::Try`
[INFO] [stdout]  --> medic-step-rust/src/main.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 |         Command::Clippy => medic_step_rust::run_clippy()?,
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `StepResult`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `ops::try_trait_old::Try` is not implemented for `StepResult`
[INFO] [stdout]   = note: `StepResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be applied to values that implement `ops::try_trait_old::Try`
[INFO] [stdout]  --> medic-step-rust/src/main.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 |         Command::Test => medic_step_rust::run_tests()?,
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `StepResult`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `ops::try_trait_old::Try` is not implemented for `StepResult`
[INFO] [stdout]   = note: `StepResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `medic-step-rust` (bin "medic-step-rust" test) due to 8 previous errors
[INFO] [stderr] error: could not compile `medic-step-rust` (bin "medic-step-rust") due to 8 previous errors
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::Try` is not satisfied
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     cargo_exists()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^-
[INFO] [stdout]    |     |
[INFO] [stdout]    |     the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::FromResidual<_>` is not satisfied
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     cargo_exists()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^-
[INFO] [stdout]    |     |
[INFO] [stdout]    |     the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] note: required by a bound in `ops::try_trait_old::Try::branch`
[INFO] [stdout]   --> /rustc/8773d2c75a8e90130dcce745a7ec4e66bb9963db/library/core/src/ops/try_trait_old.rs:54:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `ops::try_trait_old::FromResidual`)
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:37:19
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn cargo_audit() -> CheckResult {
[INFO] [stdout]    | ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 37 |     cargo_exists()?;
[INFO] [stdout]    |                   ^ cannot use the `?` operator in a function that returns `CheckResult`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::Try` is not satisfied
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     maybe_install_cargo_audit()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stdout]    |     |
[INFO] [stdout]    |     the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::FromResidual<_>` is not satisfied
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     maybe_install_cargo_audit()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stdout]    |     |
[INFO] [stdout]    |     the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] note: required by a bound in `ops::try_trait_old::Try::branch`
[INFO] [stdout]   --> /rustc/8773d2c75a8e90130dcce745a7ec4e66bb9963db/library/core/src/ops/try_trait_old.rs:54:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `ops::try_trait_old::FromResidual`)
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:38:32
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn cargo_audit() -> CheckResult {
[INFO] [stdout]    | ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 37 |     cargo_exists()?;
[INFO] [stdout] 38 |     maybe_install_cargo_audit()?;
[INFO] [stdout]    |                                ^ cannot use the `?` operator in a function that returns `CheckResult`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be applied to values that implement `ops::try_trait_old::Try`
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     cargo_exists()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `CheckResult`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be applied to values that implement `ops::try_trait_old::Try`
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     maybe_install_cargo_audit()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `CheckResult`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::Try` is not satisfied
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     cargo_exists()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^-
[INFO] [stdout]    |     |
[INFO] [stdout]    |     the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::FromResidual<_>` is not satisfied
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     cargo_exists()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^-
[INFO] [stdout]    |     |
[INFO] [stdout]    |     the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] note: required by a bound in `ops::try_trait_old::Try::branch`
[INFO] [stdout]   --> /rustc/8773d2c75a8e90130dcce745a7ec4e66bb9963db/library/core/src/ops/try_trait_old.rs:54:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `ops::try_trait_old::FromResidual`)
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:69:19
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub fn check_formatting() -> CheckResult {
[INFO] [stdout]    | ---------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 69 |     cargo_exists()?;
[INFO] [stdout]    |                   ^ cannot use the `?` operator in a function that returns `CheckResult`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be applied to values that implement `ops::try_trait_old::Try`
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     cargo_exists()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `CheckResult`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::Try` is not satisfied
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     cargo_exists()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^-
[INFO] [stdout]    |     |
[INFO] [stdout]    |     the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::FromResidual<_>` is not satisfied
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     cargo_exists()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^-
[INFO] [stdout]    |     |
[INFO] [stdout]    |     the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] note: required by a bound in `ops::try_trait_old::Try::branch`
[INFO] [stdout]   --> /rustc/8773d2c75a8e90130dcce745a7ec4e66bb9963db/library/core/src/ops/try_trait_old.rs:54:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `ops::try_trait_old::FromResidual`)
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:90:19
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub fn crate_installed(names: Vec<String>) -> CheckResult {
[INFO] [stdout]    | --------------------------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 90 |     cargo_exists()?;
[INFO] [stdout]    |                   ^ cannot use the `?` operator in a function that returns `CheckResult`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be applied to values that implement `ops::try_trait_old::Try`
[INFO] [stdout]   --> medic-check-rust/src/lib.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     cargo_exists()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `CheckResult`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]    = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::Try` is not satisfied
[INFO] [stdout]    --> medic-check-rust/src/lib.rs:164:5
[INFO] [stdout]     |
[INFO] [stdout] 164 |     rustup_exists()?;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^-
[INFO] [stdout]     |     |
[INFO] [stdout]     |     the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]     |     required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `CheckResult: ops::try_trait_old::FromResidual<_>` is not satisfied
[INFO] [stdout]    --> medic-check-rust/src/lib.rs:164:5
[INFO] [stdout]     |
[INFO] [stdout] 164 |     rustup_exists()?;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^-
[INFO] [stdout]     |     |
[INFO] [stdout]     |     the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]     |     required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] note: required by a bound in `ops::try_trait_old::Try::branch`
[INFO] [stdout]    --> /rustc/8773d2c75a8e90130dcce745a7ec4e66bb9963db/library/core/src/ops/try_trait_old.rs:54:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `ops::try_trait_old::FromResidual`)
[INFO] [stdout]    --> medic-check-rust/src/lib.rs:164:20
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn target_installed(targets: Vec<String>) -> CheckResult {
[INFO] [stdout]     | ------------------------------------------------------------ this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 164 |     rustup_exists()?;
[INFO] [stdout]     |                    ^ cannot use the `?` operator in a function that returns `CheckResult`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `ops::try_trait_old::FromResidual<_>` is not implemented for `CheckResult`
[INFO] [stdout]     = note: `CheckResult` implements similarly named trait `FromResidual`, but not `ops::try_trait_old::FromResidual<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be applied to values that implement `ops::try_trait_old::Try`
[INFO] [stdout]    --> medic-check-rust/src/lib.rs:164:5
[INFO] [stdout]     |
[INFO] [stdout] 164 |     rustup_exists()?;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `CheckResult`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `ops::try_trait_old::Try` is not implemented for `CheckResult`
[INFO] [stdout]     = note: `CheckResult` implements similarly named trait `Try`, but not `ops::try_trait_old::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `medic-check-rust` (lib test) due to 20 previous errors
[INFO] [stderr] warning: unused dependency `indoc`
[INFO] [stderr]   --> medic-outdated-rust/Cargo.toml:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | indoc = { workspace = true }
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `indoc`
[INFO] [stderr] warning: `medic-outdated-rust` (manifest) generated 1 warning
[INFO] [stderr] warning: unused dependency `indoc`
[INFO] [stderr]   --> medic-step-rust/Cargo.toml:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | indoc = { workspace = true }
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `indoc`
[INFO] [stderr] warning: `medic-step-rust` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "inspect" "1239090c0479762d787689cea5a4c85549e2a322a6fa232f44a359dc38f2a75c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1239090c0479762d787689cea5a4c85549e2a322a6fa232f44a359dc38f2a75c", kill_on_drop: false }`
[INFO] [stdout] 1239090c0479762d787689cea5a4c85549e2a322a6fa232f44a359dc38f2a75c
