[INFO] cloning repository https://github.com/eboody/client_gen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eboody/client_gen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feboody%2Fclient_gen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feboody%2Fclient_gen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5b8a3fab090cd14df83a8d97464657868c2a4302
[INFO] checking eboody/client_gen against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feboody%2Fclient_gen" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/eboody/client_gen
[INFO] finished tweaking git repo https://github.com/eboody/client_gen
[INFO] tweaked toml for git repo https://github.com/eboody/client_gen written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/eboody/client_gen on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/eboody/client_gen already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c56f507a24a340915b39adf13e755974fff6a695cfea114265b58409218c7a3
[INFO] running `Command { std: "docker" "start" "-a" "7c56f507a24a340915b39adf13e755974fff6a695cfea114265b58409218c7a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c56f507a24a340915b39adf13e755974fff6a695cfea114265b58409218c7a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c56f507a24a340915b39adf13e755974fff6a695cfea114265b58409218c7a3", kill_on_drop: false }`
[INFO] [stdout] 7c56f507a24a340915b39adf13e755974fff6a695cfea114265b58409218c7a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4bd623ed81d85ff2f52678c33ce221ab1bdaeb9d8355cb81f0a5644b1479730
[INFO] running `Command { std: "docker" "start" "-a" "e4bd623ed81d85ff2f52678c33ce221ab1bdaeb9d8355cb81f0a5644b1479730", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking client_gen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/process_rpc.rs:375:9
[INFO] [stdout]     |
[INFO] [stdout] 375 |     let mut client_param_name = "params".to_owned();
[INFO] [stdout]     |         ----^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/process_rpc.rs:418:9
[INFO] [stdout]     |
[INFO] [stdout] 418 |     let mut params_object = String::from("");
[INFO] [stdout]     |         ----^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bindings`
[INFO] [stdout]    --> src/process_rpc.rs:343:5
[INFO] [stdout]     |
[INFO] [stdout] 343 |     bindings: &Vec<String>,
[INFO] [stdout]     |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bindings`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params_object`
[INFO] [stdout]    --> src/process_rpc.rs:418:9
[INFO] [stdout]     |
[INFO] [stdout] 418 |     let mut params_object = String::from("");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_params_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/process_rpc.rs:530:54
[INFO] [stdout]     |
[INFO] [stdout] 530 |         if let Err(Error::CantMatchHandlerReturnType(e)) = return_type {
[INFO] [stdout]     |                                                      ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `EntityFunction` is more private than the item `OutputFileContent::functions`
[INFO] [stdout]    --> src/process_rpc.rs:18:5
[INFO] [stdout]     |
[INFO] [stdout]  18 |     pub functions: Vec<EntityFunction>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ field `OutputFileContent::functions` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `EntityFunction` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/process_rpc.rs:262:1
[INFO] [stdout]     |
[INFO] [stdout] 262 | struct EntityFunction {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `imports` is never read
[INFO] [stdout]   --> src/process_rpc.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct OutputFileContent {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 16 |     imports: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OutputFileContent` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/process_rpc.rs:275:5
[INFO] [stdout]     |
[INFO] [stdout] 274 | struct Param {
[INFO] [stdout]     |        ----- field in this struct
[INFO] [stdout] 275 |     name: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Param` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `type_exists_in_bindings` is never used
[INFO] [stdout]    --> src/process_rpc.rs:328:4
[INFO] [stdout]     |
[INFO] [stdout] 328 | fn type_exists_in_bindings(type_to_check: &str, bindings: &Vec<String>) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/directories.rs:19:19
[INFO] [stdout]    |
[INFO] [stdout] 19 |             path: PathBuf::from_str(starting_dir)
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/process_rpc.rs:375:9
[INFO] [stdout]     |
[INFO] [stdout] 375 |     let mut client_param_name = "params".to_owned();
[INFO] [stdout]     |         ----^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/process_rpc.rs:418:9
[INFO] [stdout]     |
[INFO] [stdout] 418 |     let mut params_object = String::from("");
[INFO] [stdout]     |         ----^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bindings`
[INFO] [stdout]    --> src/process_rpc.rs:343:5
[INFO] [stdout]     |
[INFO] [stdout] 343 |     bindings: &Vec<String>,
[INFO] [stdout]     |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bindings`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params_object`
[INFO] [stdout]    --> src/process_rpc.rs:418:9
[INFO] [stdout]     |
[INFO] [stdout] 418 |     let mut params_object = String::from("");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_params_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/process_rpc.rs:530:54
[INFO] [stdout]     |
[INFO] [stdout] 530 |         if let Err(Error::CantMatchHandlerReturnType(e)) = return_type {
[INFO] [stdout]     |                                                      ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `client_gen` (bin "client_gen" test) due to 1 previous error; 9 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: type `EntityFunction` is more private than the item `OutputFileContent::functions`
[INFO] [stdout]    --> src/process_rpc.rs:18:5
[INFO] [stdout]     |
[INFO] [stdout]  18 |     pub functions: Vec<EntityFunction>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ field `OutputFileContent::functions` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `EntityFunction` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/process_rpc.rs:262:1
[INFO] [stdout]     |
[INFO] [stdout] 262 | struct EntityFunction {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `imports` is never read
[INFO] [stdout]   --> src/process_rpc.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct OutputFileContent {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 16 |     imports: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OutputFileContent` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/process_rpc.rs:275:5
[INFO] [stdout]     |
[INFO] [stdout] 274 | struct Param {
[INFO] [stdout]     |        ----- field in this struct
[INFO] [stdout] 275 |     name: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Param` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `type_exists_in_bindings` is never used
[INFO] [stdout]    --> src/process_rpc.rs:328:4
[INFO] [stdout]     |
[INFO] [stdout] 328 | fn type_exists_in_bindings(type_to_check: &str, bindings: &Vec<String>) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/directories.rs:19:19
[INFO] [stdout]    |
[INFO] [stdout] 19 |             path: PathBuf::from_str(starting_dir)
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `client_gen` (bin "client_gen") due to 1 previous error; 9 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "e4bd623ed81d85ff2f52678c33ce221ab1bdaeb9d8355cb81f0a5644b1479730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4bd623ed81d85ff2f52678c33ce221ab1bdaeb9d8355cb81f0a5644b1479730", kill_on_drop: false }`
[INFO] [stdout] e4bd623ed81d85ff2f52678c33ce221ab1bdaeb9d8355cb81f0a5644b1479730
