[INFO] cloning repository https://github.com/cmilatinov/compiler-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cmilatinov/compiler-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcmilatinov%2Fcompiler-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcmilatinov%2Fcompiler-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 063c45f86d469da717da049e1ef48e5ad56d5bb1
[INFO] checking cmilatinov/compiler-rust against try#b98202ad067d72e45cec8be3d5c15d86ef0fd086 for pr-155193
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcmilatinov%2Fcompiler-rust" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cmilatinov/compiler-rust
[INFO] finished tweaking git repo https://github.com/cmilatinov/compiler-rust
[INFO] tweaked toml for git repo https://github.com/cmilatinov/compiler-rust written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cmilatinov/compiler-rust on toolchain b98202ad067d72e45cec8be3d5c15d86ef0fd086
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cmilatinov/compiler-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" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "inspect" "cf3417f43a7e9e19b62aa5e0c7379b99e3af1e273669e7061e4e0be1dd15e8ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf3417f43a7e9e19b62aa5e0c7379b99e3af1e273669e7061e4e0be1dd15e8ce", kill_on_drop: false }`
[INFO] [stdout] cf3417f43a7e9e19b62aa5e0c7379b99e3af1e273669e7061e4e0be1dd15e8ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 935411c0f38aeb075397a5b7e518ad4478945f03937db429671691f002ecae23
[INFO] running `Command { std: "docker" "start" "-a" "935411c0f38aeb075397a5b7e518ad4478945f03937db429671691f002ecae23", kill_on_drop: false }`
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[INFO] [stderr]     Checking lexion_derive v0.1.0 (/opt/rustwide/workdir/lexion_lib/lexion_derive)
[INFO] [stderr]    Compiling lexion_lib v0.1.0 (/opt/rustwide/workdir/lexion_lib)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> lexion_lib/src/parsers/table.rs:182:23
[INFO] [stdout]     |
[INFO] [stdout] 182 |     pub fn get_action(&self, state_index: usize, symbol: &str) -> Cow<ParseTableAction> {
[INFO] [stdout]     |                       ^^^^^ the lifetime is elided here           ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 182 |     pub fn get_action(&self, state_index: usize, symbol: &str) -> Cow<'_, ParseTableAction> {
[INFO] [stdout]     |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> lexion_lib/src/tokenizer/tokenizer.rs:36:57
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn from_string(input: Arc<String>, token_types: &[TokenType]) -> Tokenizer {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn from_string(input: Arc<String>, token_types: &[TokenType]) -> Tokenizer<'_> {
[INFO] [stdout]    |                                                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> lexion_lib/src/parsers/table.rs:182:23
[INFO] [stdout]     |
[INFO] [stdout] 182 |     pub fn get_action(&self, state_index: usize, symbol: &str) -> Cow<ParseTableAction> {
[INFO] [stdout]     |                       ^^^^^ the lifetime is elided here           ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 182 |     pub fn get_action(&self, state_index: usize, symbol: &str) -> Cow<'_, ParseTableAction> {
[INFO] [stdout]     |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> lexion_lib/src/tokenizer/tokenizer.rs:36:57
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn from_string(input: Arc<String>, token_types: &[TokenType]) -> Tokenizer {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn from_string(input: Arc<String>, token_types: &[TokenType]) -> Tokenizer<'_> {
[INFO] [stdout]    |                                                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking lexion_parsers v0.1.0 (/opt/rustwide/workdir/lexion_parsers)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> lexion_lib/src/parsers/table.rs:182:23
[INFO] [stdout]     |
[INFO] [stdout] 182 |     pub fn get_action(&self, state_index: usize, symbol: &str) -> Cow<ParseTableAction> {
[INFO] [stdout]     |                       ^^^^^ the lifetime is elided here           ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 182 |     pub fn get_action(&self, state_index: usize, symbol: &str) -> Cow<'_, ParseTableAction> {
[INFO] [stdout]     |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> lexion_lib/src/tokenizer/tokenizer.rs:36:57
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn from_string(input: Arc<String>, token_types: &[TokenType]) -> Tokenizer {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn from_string(input: Arc<String>, token_types: &[TokenType]) -> Tokenizer<'_> {
[INFO] [stdout]    |                                                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling lexion_lang v0.1.0 (/opt/rustwide/workdir/lexion_lang)
[INFO] [stderr] warning: lexion_lang@0.1.0: Read-only file system (os error 30)
[INFO] [stdout] warning: unused variable: `diag`
[INFO] [stdout]   --> lexion_lang/src/generators/x86/x86.rs:29:19
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn exec(self, diag: &mut dyn DiagnosticConsumer, opts: Self::Options) -> Option<Self::Output> {
[INFO] [stdout]    |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_diag`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opts`
[INFO] [stdout]   --> lexion_lang/src/generators/x86/x86.rs:29:54
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn exec(self, diag: &mut dyn DiagnosticConsumer, opts: Self::Options) -> Option<Self::Output> {
[INFO] [stdout]    |                                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_opts`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `diag`
[INFO] [stdout]   --> lexion_lang/src/generators/x86/x86.rs:29:19
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn exec(self, diag: &mut dyn DiagnosticConsumer, opts: Self::Options) -> Option<Self::Output> {
[INFO] [stdout]    |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_diag`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opts`
[INFO] [stdout]   --> lexion_lang/src/generators/x86/x86.rs:29:54
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn exec(self, diag: &mut dyn DiagnosticConsumer, opts: Self::Options) -> Option<Self::Output> {
[INFO] [stdout]    |                                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_opts`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stmt`
[INFO] [stdout]    --> lexion_lang/src/type_checker/type_checker.rs:746:37
[INFO] [stdout]     |
[INFO] [stdout] 746 |     fn begin_struct_stmt(&mut self, stmt: &StructDeclStmt) {}
[INFO] [stdout]     |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_stmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bitness` is never read
[INFO] [stdout]   --> lexion_lang/src/ast/types.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct PrimitiveTypeLayout {
[INFO] [stdout]    |            ------------------- field in this struct
[INFO] [stdout] 58 |     primitive: PrimitiveType,
[INFO] [stdout] 59 |     bitness: Bitness,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `members` is never read
[INFO] [stdout]    --> lexion_lang/src/generators/x86/memory_layout.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout]  99 | pub struct MemoryLayout {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 102 |     members: Vec<MemberLayout>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MemoryLayout` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cfg` is never read
[INFO] [stdout]   --> lexion_lang/src/generators/x86/register_allocator.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct LinearRegisterAllocator<'a> {
[INFO] [stdout]    |            ----------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     cfg: &'a ControlFlowGraph,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cfg`, `types`, `symbols`, and `assembler` are never read
[INFO] [stdout]   --> lexion_lang/src/generators/x86/x86.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct CodeGeneratorX86<'a> {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout]  9 |     cfg: &'a ControlFlowGraph,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     types: &'a TypeCollection,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 11 |     symbols: &'a SymbolTable,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 12 |     assembler: CodeAssembler,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> lexion_lang/src/ast/types.rs:180:28
[INFO] [stdout]     |
[INFO] [stdout] 180 |     pub fn to_string_index(&self, ty: Index) -> Cow<str> {
[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] 180 |     pub fn to_string_index(&self, ty: Index) -> Cow<'_, str> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stmt`
[INFO] [stdout]    --> lexion_lang/src/type_checker/type_checker.rs:746:37
[INFO] [stdout]     |
[INFO] [stdout] 746 |     fn begin_struct_stmt(&mut self, stmt: &StructDeclStmt) {}
[INFO] [stdout]     |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_stmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bitness` is never read
[INFO] [stdout]   --> lexion_lang/src/ast/types.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct PrimitiveTypeLayout {
[INFO] [stdout]    |            ------------------- field in this struct
[INFO] [stdout] 58 |     primitive: PrimitiveType,
[INFO] [stdout] 59 |     bitness: Bitness,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `members` is never read
[INFO] [stdout]    --> lexion_lang/src/generators/x86/memory_layout.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout]  99 | pub struct MemoryLayout {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 102 |     members: Vec<MemberLayout>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MemoryLayout` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cfg` is never read
[INFO] [stdout]   --> lexion_lang/src/generators/x86/register_allocator.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct LinearRegisterAllocator<'a> {
[INFO] [stdout]    |            ----------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     cfg: &'a ControlFlowGraph,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cfg`, `types`, `symbols`, and `assembler` are never read
[INFO] [stdout]   --> lexion_lang/src/generators/x86/x86.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct CodeGeneratorX86<'a> {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout]  9 |     cfg: &'a ControlFlowGraph,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     types: &'a TypeCollection,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 11 |     symbols: &'a SymbolTable,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 12 |     assembler: CodeAssembler,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> lexion_lang/src/ast/types.rs:180:28
[INFO] [stdout]     |
[INFO] [stdout] 180 |     pub fn to_string_index(&self, ty: Index) -> Cow<str> {
[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] 180 |     pub fn to_string_index(&self, ty: Index) -> Cow<'_, str> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 55.73s
[INFO] running `Command { std: "docker" "inspect" "935411c0f38aeb075397a5b7e518ad4478945f03937db429671691f002ecae23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "935411c0f38aeb075397a5b7e518ad4478945f03937db429671691f002ecae23", kill_on_drop: false }`
[INFO] [stdout] 935411c0f38aeb075397a5b7e518ad4478945f03937db429671691f002ecae23
