[INFO] fetching crate diatom-core 0.6.1...
[INFO] testing diatom-core-0.6.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate diatom-core 0.6.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate diatom-core 0.6.1
[INFO] finished tweaking crates.io crate diatom-core 0.6.1
[INFO] tweaked toml for crates.io crate diatom-core 0.6.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate diatom-core 0.6.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 33 packages to latest compatible versions
[INFO] [stderr]       Adding codespan-reporting v0.11.1 (available: v0.12.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded more-asserts v0.3.1
[INFO] [stderr]   Downloaded bimap v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30b24135b5e4a6bd550ab0a860e09492d234965307db6d5f6f5d806318baf695
[INFO] running `Command { std: "docker" "start" "-a" "30b24135b5e4a6bd550ab0a860e09492d234965307db6d5f6f5d806318baf695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30b24135b5e4a6bd550ab0a860e09492d234965307db6d5f6f5d806318baf695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30b24135b5e4a6bd550ab0a860e09492d234965307db6d5f6f5d806318baf695", kill_on_drop: false }`
[INFO] [stdout] 30b24135b5e4a6bd550ab0a860e09492d234965307db6d5f6f5d806318baf695
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a7e5e24f55e0096e1126a2c0879ad6ed4d4a3db0fa333338f34f652652cab39
[INFO] running `Command { std: "docker" "start" "-a" "5a7e5e24f55e0096e1126a2c0879ad6ed4d4a3db0fa333338f34f652652cab39", kill_on_drop: false }`
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling more-asserts v0.3.1
[INFO] [stderr]    Compiling codespan-reporting v0.11.1
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling bimap v0.6.3
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]    Compiling const-random v0.1.18
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling enum_dispatch v0.3.13
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling diatom-core v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Keyword` and `Operator`
[INFO] [stdout]  --> src/frontend/mod.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use lexer::{Keyword, Lexer, Operator, Token};
[INFO] [stdout]   |                 ^^^^^^^         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `loc` is never read
[INFO] [stdout]   --> src/frontend/parser/ast.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Expr {
[INFO] [stdout]    |     ---- field in this variant
[INFO] [stdout] 13 |         loc: Loc,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stmt` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `gc` and `insts` are never read
[INFO] [stdout]   --> src/interpreter/scanner/capture_scanner.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct CaptureScanner<'a, Buffer: IoWrite> {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout]  9 |     pub register_table: &'a mut RegisterTable,
[INFO] [stdout] 10 |     pub gc: &'a mut Gc<Buffer>,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 11 |     pub insts: &'a mut Vec<VmInst>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LibDummy` is never constructed
[INFO] [stdout]   --> src/interpreter/std_core.rs:64:19
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub(crate) struct LibDummy;
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `loc` is never read
[INFO] [stdout]    --> src/vm/op.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 188 | pub struct OpImport {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 193 |     pub loc: Loc,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `loc` is never read
[INFO] [stdout]    --> src/vm/op.rs:339:9
[INFO] [stdout]     |
[INFO] [stdout] 338 | pub struct OpMakeClosure {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] 339 |     pub loc: Loc,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `loc` is never read
[INFO] [stdout]     --> src/vm/op.rs:1436:9
[INFO] [stdout]      |
[INFO] [stdout] 1435 | pub struct OpJump {
[INFO] [stdout]      |            ------ field in this struct
[INFO] [stdout] 1436 |     pub loc: Loc,
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/frontend/lexer/mod.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn iter(&self) -> TokenIterator {
[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] 24 |     pub fn iter(&self) -> TokenIterator<'_> {
[INFO] [stdout]    |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/interpreter/ffi/mod.rs:47:24
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn get_obj_mut(&mut self, ref_id: usize) -> Option<DiatomObjectMut<Buffer>> {
[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] 47 |     pub fn get_obj_mut(&mut self, ref_id: usize) -> Option<DiatomObjectMut<'_, Buffer>> {
[INFO] [stdout]    |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/interpreter/ffi/mod.rs:78:20
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn get_obj(&self, ref_id: usize) -> Option<DiatomObject<Buffer>> {
[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] 78 |     pub fn get_obj(&self, ref_id: usize) -> Option<DiatomObject<'_, Buffer>> {
[INFO] [stdout]    |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.50s
[INFO] running `Command { std: "docker" "inspect" "5a7e5e24f55e0096e1126a2c0879ad6ed4d4a3db0fa333338f34f652652cab39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a7e5e24f55e0096e1126a2c0879ad6ed4d4a3db0fa333338f34f652652cab39", kill_on_drop: false }`
[INFO] [stdout] 5a7e5e24f55e0096e1126a2c0879ad6ed4d4a3db0fa333338f34f652652cab39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 473eb149cc95649dd7e2687162a47fcbb2220790af1c753edf12af37f386ca87
[INFO] running `Command { std: "docker" "start" "-a" "473eb149cc95649dd7e2687162a47fcbb2220790af1c753edf12af37f386ca87", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `Keyword` and `Operator`
[INFO] [stdout]  --> src/frontend/mod.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use lexer::{Keyword, Lexer, Operator, Token};
[INFO] [stdout]   |                 ^^^^^^^         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `loc` is never read
[INFO] [stdout]   --> src/frontend/parser/ast.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Expr {
[INFO] [stdout]    |     ---- field in this variant
[INFO] [stdout] 13 |         loc: Loc,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stmt` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `gc` and `insts` are never read
[INFO] [stdout]   --> src/interpreter/scanner/capture_scanner.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct CaptureScanner<'a, Buffer: IoWrite> {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout]  9 |     pub register_table: &'a mut RegisterTable,
[INFO] [stdout] 10 |     pub gc: &'a mut Gc<Buffer>,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 11 |     pub insts: &'a mut Vec<VmInst>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LibDummy` is never constructed
[INFO] [stdout]   --> src/interpreter/std_core.rs:64:19
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub(crate) struct LibDummy;
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `loc` is never read
[INFO] [stdout]    --> src/vm/op.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 188 | pub struct OpImport {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 193 |     pub loc: Loc,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `loc` is never read
[INFO] [stdout]    --> src/vm/op.rs:339:9
[INFO] [stdout]     |
[INFO] [stdout] 338 | pub struct OpMakeClosure {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] 339 |     pub loc: Loc,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling diatom-core v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `loc` is never read
[INFO] [stdout]     --> src/vm/op.rs:1436:9
[INFO] [stdout]      |
[INFO] [stdout] 1435 | pub struct OpJump {
[INFO] [stdout]      |            ------ field in this struct
[INFO] [stdout] 1436 |     pub loc: Loc,
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/frontend/lexer/mod.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn iter(&self) -> TokenIterator {
[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] 24 |     pub fn iter(&self) -> TokenIterator<'_> {
[INFO] [stdout]    |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/interpreter/ffi/mod.rs:47:24
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn get_obj_mut(&mut self, ref_id: usize) -> Option<DiatomObjectMut<Buffer>> {
[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] 47 |     pub fn get_obj_mut(&mut self, ref_id: usize) -> Option<DiatomObjectMut<'_, Buffer>> {
[INFO] [stdout]    |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/interpreter/ffi/mod.rs:78:20
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn get_obj(&self, ref_id: usize) -> Option<DiatomObject<Buffer>> {
[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] 78 |     pub fn get_obj(&self, ref_id: usize) -> Option<DiatomObject<'_, Buffer>> {
[INFO] [stdout]    |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Keyword` and `Operator`
[INFO] [stdout]  --> src/frontend/mod.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use lexer::{Keyword, Lexer, Operator, Token};
[INFO] [stdout]   |                 ^^^^^^^         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `loc` is never read
[INFO] [stdout]   --> src/frontend/parser/ast.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Expr {
[INFO] [stdout]    |     ---- field in this variant
[INFO] [stdout] 13 |         loc: Loc,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stmt` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `gc` and `insts` are never read
[INFO] [stdout]   --> src/interpreter/scanner/capture_scanner.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct CaptureScanner<'a, Buffer: IoWrite> {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout]  9 |     pub register_table: &'a mut RegisterTable,
[INFO] [stdout] 10 |     pub gc: &'a mut Gc<Buffer>,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 11 |     pub insts: &'a mut Vec<VmInst>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `loc` is never read
[INFO] [stdout]    --> src/vm/op.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 188 | pub struct OpImport {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 193 |     pub loc: Loc,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `loc` is never read
[INFO] [stdout]    --> src/vm/op.rs:339:9
[INFO] [stdout]     |
[INFO] [stdout] 338 | pub struct OpMakeClosure {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] 339 |     pub loc: Loc,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `loc` is never read
[INFO] [stdout]     --> src/vm/op.rs:1436:9
[INFO] [stdout]      |
[INFO] [stdout] 1435 | pub struct OpJump {
[INFO] [stdout]      |            ------ field in this struct
[INFO] [stdout] 1436 |     pub loc: Loc,
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/frontend/lexer/mod.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn iter(&self) -> TokenIterator {
[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] 24 |     pub fn iter(&self) -> TokenIterator<'_> {
[INFO] [stdout]    |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/interpreter/ffi/mod.rs:47:24
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn get_obj_mut(&mut self, ref_id: usize) -> Option<DiatomObjectMut<Buffer>> {
[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] 47 |     pub fn get_obj_mut(&mut self, ref_id: usize) -> Option<DiatomObjectMut<'_, Buffer>> {
[INFO] [stdout]    |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/interpreter/ffi/mod.rs:78:20
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn get_obj(&self, ref_id: usize) -> Option<DiatomObject<Buffer>> {
[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] 78 |     pub fn get_obj(&self, ref_id: usize) -> Option<DiatomObject<'_, Buffer>> {
[INFO] [stdout]    |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.78s
[INFO] running `Command { std: "docker" "inspect" "473eb149cc95649dd7e2687162a47fcbb2220790af1c753edf12af37f386ca87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "473eb149cc95649dd7e2687162a47fcbb2220790af1c753edf12af37f386ca87", kill_on_drop: false }`
[INFO] [stdout] 473eb149cc95649dd7e2687162a47fcbb2220790af1c753edf12af37f386ca87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d9bd5d20b945bf9de8ca99a85bb2066244f20ccf2b822b9e50c1c633bc474e74
[INFO] running `Command { std: "docker" "start" "-a" "d9bd5d20b945bf9de8ca99a85bb2066244f20ccf2b822b9e50c1c633bc474e74", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Keyword` and `Operator`
[INFO] [stderr]  --> src/frontend/mod.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub use lexer::{Keyword, Lexer, Operator, Token};
[INFO] [stderr]   |                 ^^^^^^^         ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `loc` is never read
[INFO] [stderr]   --> src/frontend/parser/ast.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Expr {
[INFO] [stderr]    |     ---- field in this variant
[INFO] [stderr] 13 |         loc: Loc,
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Stmt` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `gc` and `insts` are never read
[INFO] [stderr]   --> src/interpreter/scanner/capture_scanner.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr]  8 | pub struct CaptureScanner<'a, Buffer: IoWrite> {
[INFO] [stderr]    |            -------------- fields in this struct
[INFO] [stderr]  9 |     pub register_table: &'a mut RegisterTable,
[INFO] [stderr] 10 |     pub gc: &'a mut Gc<Buffer>,
[INFO] [stderr]    |         ^^
[INFO] [stderr] 11 |     pub insts: &'a mut Vec<VmInst>,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `LibDummy` is never constructed
[INFO] [stderr]   --> src/interpreter/std_core.rs:64:19
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub(crate) struct LibDummy;
[INFO] [stderr]    |                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `loc` is never read
[INFO] [stderr]    --> src/vm/op.rs:193:9
[INFO] [stderr]     |
[INFO] [stderr] 188 | pub struct OpImport {
[INFO] [stderr]     |            -------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 193 |     pub loc: Loc,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `loc` is never read
[INFO] [stderr]    --> src/vm/op.rs:339:9
[INFO] [stderr]     |
[INFO] [stderr] 338 | pub struct OpMakeClosure {
[INFO] [stderr]     |            ------------- field in this struct
[INFO] [stderr] 339 |     pub loc: Loc,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `loc` is never read
[INFO] [stderr]     --> src/vm/op.rs:1436:9
[INFO] [stderr]      |
[INFO] [stderr] 1435 | pub struct OpJump {
[INFO] [stderr]      |            ------ field in this struct
[INFO] [stderr] 1436 |     pub loc: Loc,
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/frontend/lexer/mod.rs:24:17
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn iter(&self) -> TokenIterator {
[INFO] [stderr]    |                 ^^^^^     ------------- the same lifetime is hidden here
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn iter(&self) -> TokenIterator<'_> {
[INFO] [stderr]    |                                        ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/interpreter/ffi/mod.rs:47:24
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn get_obj_mut(&mut self, ref_id: usize) -> Option<DiatomObjectMut<Buffer>> {
[INFO] [stderr]    |                        ^^^^^^^^^                           ----------------------- the same lifetime is hidden here
[INFO] [stderr]    |                        |
[INFO] [stderr]    |                        the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn get_obj_mut(&mut self, ref_id: usize) -> Option<DiatomObjectMut<'_, Buffer>> {
[INFO] [stderr]    |                                                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/interpreter/ffi/mod.rs:78:20
[INFO] [stderr]    |
[INFO] [stderr] 78 |     pub fn get_obj(&self, ref_id: usize) -> Option<DiatomObject<Buffer>> {
[INFO] [stderr]    |                    ^^^^^                           -------------------- the same lifetime is hidden here
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 78 |     pub fn get_obj(&self, ref_id: usize) -> Option<DiatomObject<'_, Buffer>> {
[INFO] [stderr]    |                                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: `diatom-core` (lib) generated 10 warnings (run `cargo fix --lib -p diatom-core` to apply 1 suggestion)
[INFO] [stderr] warning: `diatom-core` (lib test) generated 9 warnings (9 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/diatom_core-3f87bdcccf8d606e)
[INFO] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test frontend::lexer::tests::test_consume_string ... ok
[INFO] [stdout] test frontend::lexer::tests::test_valid ... ok
[INFO] [stdout] test frontend::parser::tests::test_fn ... ok
[INFO] [stdout] test frontend::parser::tests::test_expr_postfix_ambiguous ... ok
[INFO] [stdout] test frontend::parser::tests::test_if ... ok
[INFO] [stdout] test frontend::lexer::tests::test_consume_float ... ok
[INFO] [stdout] test frontend::parser::tests::test_def ... ok
[INFO] [stdout] test frontend::lexer::tests::test_dispatch ... ok
[INFO] [stdout] test frontend::parser::tests::test_invalid ... ok
[INFO] [stdout] test frontend::parser::tests::test_loop ... ok
[INFO] [stdout] test frontend::parser::tests::test_table ... ok
[INFO] [stdout] test frontend::parser::tests::test_valid ... ok
[INFO] [stdout] test interpreter::tests::test_assignment ... ok
[INFO] [stdout] test frontend::lexer::tests::test_consume_int ... ok
[INFO] [stdout] test interpreter::tests::test_closure ... ok
[INFO] [stdout] test frontend::parser::tests::test_statement ... ok
[INFO] [stdout] test interpreter::tests::test_binary_op ... ok
[INFO] [stdout] test frontend::lexer::tests::test_invalid ... ok
[INFO] [stdout] test interpreter::tests::test_meta_table ... ok
[INFO] [stdout] test interpreter::tests::test_method ... ok
[INFO] [stdout] test interpreter::tests::test_recursive ... ok
[INFO] [stdout] test interpreter::tests::test_tuple ... ok
[INFO] [stdout] test tests::test_import_non_table ... ok
[INFO] [stdout] test tests::test_import_cycle ... ok
[INFO] [stdout] test tests::test_import_ok ... ok
[INFO] [stdout] test interpreter::tests::test_compile_with_target ... ok
[INFO] [stdout] test interpreter::tests::test_if ... ok
[INFO] [stdout] test interpreter::tests::test_list ... ok
[INFO] [stdout] test interpreter::tests::test_loop ... ok
[INFO] [stdout] test interpreter::tests::test_short_circuit ... ok
[INFO] [stdout] test interpreter::tests::test_table ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 31 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests diatom_core
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/frontend/lexer/mod.rs - frontend::lexer::Lexer (line 33) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.18s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d9bd5d20b945bf9de8ca99a85bb2066244f20ccf2b822b9e50c1c633bc474e74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9bd5d20b945bf9de8ca99a85bb2066244f20ccf2b822b9e50c1c633bc474e74", kill_on_drop: false }`
[INFO] [stdout] d9bd5d20b945bf9de8ca99a85bb2066244f20ccf2b822b9e50c1c633bc474e74
