[INFO] cloning repository https://github.com/GenrikhFetischev/flat-rpc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GenrikhFetischev/flat-rpc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGenrikhFetischev%2Fflat-rpc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGenrikhFetischev%2Fflat-rpc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b51c894155124f93dbe15a33710cc44407e2b682
[INFO] checking GenrikhFetischev/flat-rpc 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%2FGenrikhFetischev%2Fflat-rpc" "/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/GenrikhFetischev/flat-rpc
[INFO] finished tweaking git repo https://github.com/GenrikhFetischev/flat-rpc
[INFO] tweaked toml for git repo https://github.com/GenrikhFetischev/flat-rpc written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/GenrikhFetischev/flat-rpc 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/GenrikhFetischev/flat-rpc 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 19ffeb82ebbd10954b46269365938b67ea6c49ab38dbc7a967eabad712a3833a
[INFO] running `Command { std: "docker" "start" "-a" "19ffeb82ebbd10954b46269365938b67ea6c49ab38dbc7a967eabad712a3833a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19ffeb82ebbd10954b46269365938b67ea6c49ab38dbc7a967eabad712a3833a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19ffeb82ebbd10954b46269365938b67ea6c49ab38dbc7a967eabad712a3833a", kill_on_drop: false }`
[INFO] [stdout] 19ffeb82ebbd10954b46269365938b67ea6c49ab38dbc7a967eabad712a3833a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 65548e292b9fbde73dbf5691a1102a6057e63d2c5d68615be39ef5eee6660895
[INFO] running `Command { std: "docker" "start" "-a" "65548e292b9fbde73dbf5691a1102a6057e63d2c5d68615be39ef5eee6660895", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]     Checking os_str_bytes v6.1.0
[INFO] [stderr]     Checking convert_case v0.5.0
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling clap_derive v3.1.18
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking clap v3.1.18
[INFO] [stderr]     Checking flat-rpc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |   Table(&'a TableDeclaration),
[INFO] [stdout]    |   ----- ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[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] 25 -   Table(&'a TableDeclaration),
[INFO] [stdout] 25 +   Table(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 |   Struct(&'a StructDeclaration),
[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] 26 -   Struct(&'a StructDeclaration),
[INFO] [stdout] 26 +   Struct(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:29:7
[INFO] [stdout]    |
[INFO] [stdout] 29 |   Rpc(&'a RpcDeclaration),
[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] 29 -   Rpc(&'a RpcDeclaration),
[INFO] [stdout] 29 +   Rpc(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `type_def` and `items` are never read
[INFO] [stdout]    --> src/ir.rs:130:7
[INFO] [stdout]     |
[INFO] [stdout] 128 | pub struct EnumDeclaration {
[INFO] [stdout]     |            --------------- fields in this struct
[INFO] [stdout] 129 |   pub name: String,
[INFO] [stdout] 130 |   pub type_def: Type,
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout] 131 |   pub items: HashSet<String>,
[INFO] [stdout]     |       ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EnumDeclaration` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/ir.rs:199:7
[INFO] [stdout]     |
[INFO] [stdout] 198 | pub struct RpcDeclaration {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 199 |   pub name: String,
[INFO] [stdout]     |       ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RpcDeclaration` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ToTsString` is never used
[INFO] [stdout]    --> src/codegen_rs.rs:104:11
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub trait ToTsString {
[INFO] [stdout]     |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:34:3
[INFO] [stdout]    |
[INFO] [stdout] 34 | /   #[clap(short, long)]
[INFO] [stdout] 35 | |   input_file: String,
[INFO] [stdout]    | |____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:36:3
[INFO] [stdout]    |
[INFO] [stdout] 36 | /   #[clap(short, long)]
[INFO] [stdout] 37 | |   output_file: Option<String>,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/parser.rs:48:31
[INFO] [stdout]    |
[INFO] [stdout] 48 |   pub fn resolve_decl_by_name(&self, name: &str) -> DeclType {
[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] 48 |   pub fn resolve_decl_by_name(&self, name: &str) -> DeclType<'_> {
[INFO] [stdout]    |                                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flat-rpc` (bin "flat-rpc") due to 2 previous errors; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |   Table(&'a TableDeclaration),
[INFO] [stdout]    |   ----- ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[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] 25 -   Table(&'a TableDeclaration),
[INFO] [stdout] 25 +   Table(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 |   Struct(&'a StructDeclaration),
[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] 26 -   Struct(&'a StructDeclaration),
[INFO] [stdout] 26 +   Struct(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:29:7
[INFO] [stdout]    |
[INFO] [stdout] 29 |   Rpc(&'a RpcDeclaration),
[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] 29 -   Rpc(&'a RpcDeclaration),
[INFO] [stdout] 29 +   Rpc(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `type_def` and `items` are never read
[INFO] [stdout]    --> src/ir.rs:130:7
[INFO] [stdout]     |
[INFO] [stdout] 128 | pub struct EnumDeclaration {
[INFO] [stdout]     |            --------------- fields in this struct
[INFO] [stdout] 129 |   pub name: String,
[INFO] [stdout] 130 |   pub type_def: Type,
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout] 131 |   pub items: HashSet<String>,
[INFO] [stdout]     |       ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EnumDeclaration` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/ir.rs:199:7
[INFO] [stdout]     |
[INFO] [stdout] 198 | pub struct RpcDeclaration {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 199 |   pub name: String,
[INFO] [stdout]     |       ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RpcDeclaration` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ToTsString` is never used
[INFO] [stdout]    --> src/codegen_rs.rs:104:11
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub trait ToTsString {
[INFO] [stdout]     |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:34:3
[INFO] [stdout]    |
[INFO] [stdout] 34 | /   #[clap(short, long)]
[INFO] [stdout] 35 | |   input_file: String,
[INFO] [stdout]    | |____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:36:3
[INFO] [stdout]    |
[INFO] [stdout] 36 | /   #[clap(short, long)]
[INFO] [stdout] 37 | |   output_file: Option<String>,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/parser.rs:48:31
[INFO] [stdout]    |
[INFO] [stdout] 48 |   pub fn resolve_decl_by_name(&self, name: &str) -> DeclType {
[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] 48 |   pub fn resolve_decl_by_name(&self, name: &str) -> DeclType<'_> {
[INFO] [stdout]    |                                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flat-rpc` (bin "flat-rpc" test) due to 2 previous errors; 7 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "65548e292b9fbde73dbf5691a1102a6057e63d2c5d68615be39ef5eee6660895", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65548e292b9fbde73dbf5691a1102a6057e63d2c5d68615be39ef5eee6660895", kill_on_drop: false }`
[INFO] [stdout] 65548e292b9fbde73dbf5691a1102a6057e63d2c5d68615be39ef5eee6660895
