[INFO] fetching crate cao-lang 0.2.6...
[INFO] fixing cao-lang-0.2.6 against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=end=2015,2024 for pr-157817-2
[INFO] extracting crate cao-lang 0.2.6 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate cao-lang 0.2.6
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate cao-lang 0.2.6
[INFO] tweaked toml for crates.io crate cao-lang 0.2.6 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cao-lang 0.2.6 on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cao-lang 0.2.6 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "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:rw,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@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 6062e6fc0a8d88ec93d9702097a9f2523b2c0296a27616d5bccb87ba23c0e90b
[INFO] running `Command { std: "docker" "start" "6062e6fc0a8d88ec93d9702097a9f2523b2c0296a27616d5bccb87ba23c0e90b", 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" "6062e6fc0a8d88ec93d9702097a9f2523b2c0296a27616d5bccb87ba23c0e90b" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6062e6fc0a8d88ec93d9702097a9f2523b2c0296a27616d5bccb87ba23c0e90b", 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=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6062e6fc0a8d88ec93d9702097a9f2523b2c0296a27616d5bccb87ba23c0e90b" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=end=2015,2024", kill_on_drop: false }`
[INFO] [stderr] crater-edition-check: migrating to next edition
[INFO] [stderr]    Migrating Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]     Checking once_cell v1.20.3
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]     Checking log v0.4.25
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]    Compiling winnow v0.7.1
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking anstyle v1.0.10
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]    Compiling serde_json v1.0.138
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking half v2.4.1
[INFO] [stderr]    Compiling thiserror v2.0.11
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]     Checking clap_lex v0.7.4
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]    Compiling indexmap v2.7.1
[INFO] [stderr]     Checking clap_builder v4.5.27
[INFO] [stderr]     Checking anstyle-parse v0.2.6
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]    Compiling bytemuck_derive v1.8.1
[INFO] [stderr]    Compiling thiserror-impl v2.0.11
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.1
[INFO] [stderr]     Checking anstyle-query v1.1.2
[INFO] [stderr]     Checking colorchoice v1.0.3
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking anstream v0.6.18
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking clap v4.5.28
[INFO] [stderr]     Checking env_filter v0.1.3
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking is-terminal v0.4.15
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling tracing-test-macro v0.2.5
[INFO] [stderr]     Checking oorandom v11.1.4
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking env_logger v0.11.6
[INFO] [stderr]     Checking bytemuck v1.21.0
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling serde_spanned v0.6.8
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]    Compiling toml_edit v0.22.23
[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Checking tracing-test v0.2.5
[INFO] [stderr]    Compiling proc-macro-crate v3.2.0
[INFO] [stderr]    Compiling num_enum_derive v0.7.3
[INFO] [stderr]     Checking num_enum v0.7.3
[INFO] [stderr]     Checking cao-lang v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]    Migrating src/lib.rs from 2021 edition to 2024
[INFO] [stderr]        Fixed src/collections/handle_table.rs (2 fixes)
[INFO] [stderr]        Fixed src/collections/hash_map.rs (7 fixes)
[INFO] [stderr]        Fixed src/lib.rs (1 fix)
[INFO] [stderr]        Fixed src/alloc.rs (2 fixes)
[INFO] [stderr]        Fixed src/collections/value_stack.rs (1 fix)
[INFO] [stderr]        Fixed src/alloc/caolang_alloc.rs (7 fixes)
[INFO] [stderr]        Fixed src/value.rs (3 fixes)
[INFO] [stderr]        Fixed src/vm/runtime.rs (1 fix)
[INFO] [stdout] warning: cannot mutably bind by value within an implicitly-borrowing pattern in Rust 2024
[INFO] [stdout]    --> src/vm/runtime.rs:319:38
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let Value::Object(mut value) = $val {
[INFO] [stdout]     |                                      ^^^^^^^^^ occurs within macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 336 |                             checked_enqueue_value!(key);
[INFO] [stdout]     |                             --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/match-ergonomics.html>
[INFO] [stdout]     = note: `--force-warn rust-2024-incompatible-pat` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout]     = note: this warning originates in the macro `checked_enqueue_value` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: match on the reference with a reference pattern to avoid implicitly borrowing
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let &Value::Object(mut value) = $val {
[INFO] [stdout]     |                        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot mutably bind by value within an implicitly-borrowing pattern in Rust 2024
[INFO] [stdout]    --> src/vm/runtime.rs:319:38
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let Value::Object(mut value) = $val {
[INFO] [stdout]     |                                      ^^^^^^^^^ occurs within macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 337 |                             checked_enqueue_value!(value);
[INFO] [stdout]     |                             ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/match-ergonomics.html>
[INFO] [stdout]     = note: this warning originates in the macro `checked_enqueue_value` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: match on the reference with a reference pattern to avoid implicitly borrowing
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let &Value::Object(mut value) = $val {
[INFO] [stdout]     |                        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot mutably bind by value within an implicitly-borrowing pattern in Rust 2024
[INFO] [stdout]    --> src/vm/runtime.rs:319:38
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let Value::Object(mut value) = $val {
[INFO] [stdout]     |                                      ^^^^^^^^^ occurs within macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 363 |                         checked_enqueue_value!(t);
[INFO] [stdout]     |                         ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/match-ergonomics.html>
[INFO] [stdout]     = note: this warning originates in the macro `checked_enqueue_value` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: match on the reference with a reference pattern to avoid implicitly borrowing
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let &mut Value::Object(mut value) = $val {
[INFO] [stdout]     |                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot mutably bind by value within an implicitly-borrowing pattern in Rust 2024
[INFO] [stdout]    --> src/vm/runtime.rs:319:38
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let Value::Object(mut value) = $val {
[INFO] [stdout]     |                                      ^^^^^^^^^ occurs within macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 336 |                             checked_enqueue_value!(key);
[INFO] [stdout]     |                             --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/match-ergonomics.html>
[INFO] [stdout]     = note: `--force-warn rust-2024-incompatible-pat` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout]     = note: this warning originates in the macro `checked_enqueue_value` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: match on the reference with a reference pattern to avoid implicitly borrowing
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let &Value::Object(mut value) = $val {
[INFO] [stdout]     |                        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot mutably bind by value within an implicitly-borrowing pattern in Rust 2024
[INFO] [stdout]    --> src/vm/runtime.rs:319:38
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let Value::Object(mut value) = $val {
[INFO] [stdout]     |                                      ^^^^^^^^^ occurs within macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 337 |                             checked_enqueue_value!(value);
[INFO] [stdout]     |                             ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/match-ergonomics.html>
[INFO] [stdout]     = note: this warning originates in the macro `checked_enqueue_value` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: match on the reference with a reference pattern to avoid implicitly borrowing
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let &Value::Object(mut value) = $val {
[INFO] [stdout]     |                        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot mutably bind by value within an implicitly-borrowing pattern in Rust 2024
[INFO] [stdout]    --> src/vm/runtime.rs:319:38
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let Value::Object(mut value) = $val {
[INFO] [stdout]     |                                      ^^^^^^^^^ occurs within macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 363 |                         checked_enqueue_value!(t);
[INFO] [stdout]     |                         ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/match-ergonomics.html>
[INFO] [stdout]     = note: this warning originates in the macro `checked_enqueue_value` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: match on the reference with a reference pattern to avoid implicitly borrowing
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let &mut Value::Object(mut value) = $val {
[INFO] [stdout]     |                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating tests/test_fibonacci.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/test_tables.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating benches/cao_lang_benches.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/integration_tests.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating tests/test_for_each.rs from 2021 edition to 2024
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 48.02s
[INFO] [stderr] crater-edition-check: cao-lang v0.2.6 (/opt/rustwide/workdir) updating edition from 2021 to 2024
[INFO] [stderr]     Checking cao-lang v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/alloc/caolang_alloc.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub unsafe fn alloc(&self, l: Layout) -> Result<NonNull<u8>, AllocError> { unsafe {
[INFO] [stdout]    |                                                                                ------ because it's nested under this `unsafe` block
[INFO] [stdout] ...
[INFO] [stdout] 77 |             unsafe {
[INFO] [stdout]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/alloc/caolang_alloc.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub unsafe fn alloc(&self, l: Layout) -> Result<NonNull<u8>, AllocError> { unsafe {
[INFO] [stdout]    |                                                                                ------ because it's nested under this `unsafe` block
[INFO] [stdout] ...
[INFO] [stdout] 77 |             unsafe {
[INFO] [stdout]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot mutably bind by value within an implicitly-borrowing pattern
[INFO] [stdout]    --> src/vm/runtime.rs:319:38
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let Value::Object(mut value) = $val {
[INFO] [stdout]     |                                      ^^^^^^^^^ occurs within macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 336 |                             checked_enqueue_value!(key);
[INFO] [stdout]     |                             --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/reference/patterns.html#binding-modes>
[INFO] [stdout]     = note: this error originates in the macro `checked_enqueue_value` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: match on the reference with a reference pattern to avoid implicitly borrowing
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let &Value::Object(mut value) = $val {
[INFO] [stdout]     |                        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot mutably bind by value within an implicitly-borrowing pattern
[INFO] [stdout]    --> src/vm/runtime.rs:319:38
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let Value::Object(mut value) = $val {
[INFO] [stdout]     |                                      ^^^^^^^^^ occurs within macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 337 |                             checked_enqueue_value!(value);
[INFO] [stdout]     |                             ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/reference/patterns.html#binding-modes>
[INFO] [stdout]     = note: this error originates in the macro `checked_enqueue_value` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: match on the reference with a reference pattern to avoid implicitly borrowing
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let &Value::Object(mut value) = $val {
[INFO] [stdout]     |                        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot mutably bind by value within an implicitly-borrowing pattern
[INFO] [stdout]    --> src/vm/runtime.rs:319:38
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let Value::Object(mut value) = $val {
[INFO] [stdout]     |                                      ^^^^^^^^^ occurs within macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 363 |                         checked_enqueue_value!(t);
[INFO] [stdout]     |                         ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/reference/patterns.html#binding-modes>
[INFO] [stdout]     = note: this error originates in the macro `checked_enqueue_value` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: match on the reference with a reference pattern to avoid implicitly borrowing
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let &mut Value::Object(mut value) = $val {
[INFO] [stdout]     |                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cao-lang` (lib) due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: cannot mutably bind by value within an implicitly-borrowing pattern
[INFO] [stdout]    --> src/vm/runtime.rs:319:38
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let Value::Object(mut value) = $val {
[INFO] [stdout]     |                                      ^^^^^^^^^ occurs within macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 336 |                             checked_enqueue_value!(key);
[INFO] [stdout]     |                             --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/reference/patterns.html#binding-modes>
[INFO] [stdout]     = note: this error originates in the macro `checked_enqueue_value` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: match on the reference with a reference pattern to avoid implicitly borrowing
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let &Value::Object(mut value) = $val {
[INFO] [stdout]     |                        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot mutably bind by value within an implicitly-borrowing pattern
[INFO] [stdout]    --> src/vm/runtime.rs:319:38
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let Value::Object(mut value) = $val {
[INFO] [stdout]     |                                      ^^^^^^^^^ occurs within macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 337 |                             checked_enqueue_value!(value);
[INFO] [stdout]     |                             ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/reference/patterns.html#binding-modes>
[INFO] [stdout]     = note: this error originates in the macro `checked_enqueue_value` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: match on the reference with a reference pattern to avoid implicitly borrowing
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let &Value::Object(mut value) = $val {
[INFO] [stdout]     |                        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot mutably bind by value within an implicitly-borrowing pattern
[INFO] [stdout]    --> src/vm/runtime.rs:319:38
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let Value::Object(mut value) = $val {
[INFO] [stdout]     |                                      ^^^^^^^^^ occurs within macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 363 |                         checked_enqueue_value!(t);
[INFO] [stdout]     |                         ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/reference/patterns.html#binding-modes>
[INFO] [stdout]     = note: this error originates in the macro `checked_enqueue_value` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: match on the reference with a reference pattern to avoid implicitly borrowing
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 if let &mut Value::Object(mut value) = $val {
[INFO] [stdout]     |                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cao-lang` (lib test) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "6062e6fc0a8d88ec93d9702097a9f2523b2c0296a27616d5bccb87ba23c0e90b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6062e6fc0a8d88ec93d9702097a9f2523b2c0296a27616d5bccb87ba23c0e90b", kill_on_drop: false }`
[INFO] [stdout] 6062e6fc0a8d88ec93d9702097a9f2523b2c0296a27616d5bccb87ba23c0e90b
