[INFO] fetching crate stutter-rs 0.1.1...
[INFO] testing stutter-rs-0.1.1 against 1.91.0 for beta-1.92-2
[INFO] extracting crate stutter-rs 0.1.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate stutter-rs 0.1.1
[INFO] finished tweaking crates.io crate stutter-rs 0.1.1
[INFO] tweaked toml for crates.io crate stutter-rs 0.1.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate stutter-rs 0.1.1 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] [stderr]       Adding colored v1.9.4 (available: v3.0.0)
[INFO] [stderr]       Adding nom v4.2.3 (available: v8.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cactus v1.0.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0a7e4ae9a6903fc7ec0c68d7f28fdc37d762355402af540d7384d46036e32f1
[INFO] running `Command { std: "docker" "start" "-a" "c0a7e4ae9a6903fc7ec0c68d7f28fdc37d762355402af540d7384d46036e32f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0a7e4ae9a6903fc7ec0c68d7f28fdc37d762355402af540d7384d46036e32f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0a7e4ae9a6903fc7ec0c68d7f28fdc37d762355402af540d7384d46036e32f1", kill_on_drop: false }`
[INFO] [stdout] c0a7e4ae9a6903fc7ec0c68d7f28fdc37d762355402af540d7384d46036e32f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71f333d0aeb6ee2f8d60f200d60eb60aa72bfb30619b4e64f2db25f8b8424da7
[INFO] running `Command { std: "docker" "start" "-a" "71f333d0aeb6ee2f8d60f200d60eb60aa72bfb30619b4e64f2db25f8b8424da7", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling cactus v1.0.7
[INFO] [stderr]    Compiling is-terminal v0.4.17
[INFO] [stderr]    Compiling colored v1.9.4
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling stutter-rs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_syntax, box_patterns, fn_traits, nll, iterator_step_by)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in 1.70.0; see <https://github.com/rust-lang/rust/pull/108471> for more information
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/eval/builtins/static_functions.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | /         box | values | -> Value {
[INFO] [stdout] 12 | |
[INFO] [stdout] 13 | |             use types::Value::*;
[INFO] [stdout] ...  |
[INFO] [stdout] 22 | |             Number(acc)
[INFO] [stdout] 23 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 11 ~         Box::new(| values | -> Value {
[INFO] [stdout] 12 |
[INFO] [stdout] ...
[INFO] [stdout] 22 |             Number(acc)
[INFO] [stdout] 23 ~         })
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/eval/builtins/static_functions.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 | /         box | values | -> Value {
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |             for value in values {
[INFO] [stdout] 31 | |                 print!("{} ", value);
[INFO] [stdout] ...  |
[INFO] [stdout] 35 | |             Value::Null
[INFO] [stdout] 36 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 28 ~         Box::new(| values | -> Value {
[INFO] [stdout] 29 |
[INFO] [stdout] ...
[INFO] [stdout] 35 |             Value::Null
[INFO] [stdout] 36 ~         })
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/eval/builtins/language_functions.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | /         box | args, stack | -> Value {
[INFO] [stdout] 13 | |             stack.pop_return();
[INFO] [stdout] 14 | |
[INFO] [stdout] 15 | |             for i in (0..args.len()).step_by(2) {
[INFO] [stdout] ...  |
[INFO] [stdout] 31 | |             Value::Null
[INFO] [stdout] 32 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 12 ~         Box::new(| args, stack | -> Value {
[INFO] [stdout] 13 |             stack.pop_return();
[INFO] [stdout] ...
[INFO] [stdout] 31 |             Value::Null
[INFO] [stdout] 32 ~         })
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/eval/builtins/language_functions.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 | /         box | args, stack | -> Value {
[INFO] [stdout] 38 | |             stack.pop_return();
[INFO] [stdout] 39 | |
[INFO] [stdout] 40 | |             for i in (0..args.len()).step_by(2) {
[INFO] [stdout] ...  |
[INFO] [stdout] 60 | |             Value::Null
[INFO] [stdout] 61 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 37 ~         Box::new(| args, stack | -> Value {
[INFO] [stdout] 38 |             stack.pop_return();
[INFO] [stdout] ...
[INFO] [stdout] 60 |             Value::Null
[INFO] [stdout] 61 ~         })
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/eval/builtins/language_functions.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 | /         box | args, stack | -> Value {
[INFO] [stdout] 67 | |
[INFO] [stdout] 68 | |             let mut eval_else = true;
[INFO] [stdout] ...  |
[INFO] [stdout] 85 | |             stack.pop_return()
[INFO] [stdout] 86 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 66 ~         Box::new(| args, stack | -> Value {
[INFO] [stdout] 67 |
[INFO] [stdout] ...
[INFO] [stdout] 85 |             stack.pop_return()
[INFO] [stdout] 86 ~         })
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/eval/builtins/language_functions.rs:91:9
[INFO] [stdout]     |
[INFO] [stdout]  91 | /         box | args, stack | -> Value {
[INFO] [stdout]  92 | |             use eval::eval::eval;
[INFO] [stdout]  93 | |
[INFO] [stdout]  94 | |             let mut value = Value::Null;
[INFO] [stdout] ...   |
[INFO] [stdout] 101 | |             value
[INFO] [stdout] 102 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout]  91 ~         Box::new(| args, stack | -> Value {
[INFO] [stdout]  92 |             use eval::eval::eval;
[INFO] [stdout] ...
[INFO] [stdout] 101 |             value
[INFO] [stdout] 102 ~         })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/eval/builtins/language_functions.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 | /         box | args, stack | -> Value {
[INFO] [stdout] 108 | |
[INFO] [stdout] 109 | |             let mut func_body = args.clone();
[INFO] [stdout] 110 | |             stack.pop_return();
[INFO] [stdout] ...   |
[INFO] [stdout] 138 | |             Value::Null
[INFO] [stdout] 139 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 107 ~         Box::new(| args, stack | -> Value {
[INFO] [stdout] 108 |
[INFO] [stdout] ...
[INFO] [stdout] 138 |             Value::Null
[INFO] [stdout] 139 ~         })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_syntax, box_patterns, fn_traits, nll, iterator_step_by)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `nll` has been stable since `1.63.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `nll` has been stable since 1.63.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:49
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_syntax, box_patterns, fn_traits, nll, iterator_step_by)]
[INFO] [stdout]   |                                                 ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:54
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_syntax, box_patterns, fn_traits, nll, iterator_step_by)]
[INFO] [stdout]   |                                                      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/eval/builtins/static_functions.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub type StaticFn = Fn(Vec<Value>) -> Value;
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub type StaticFn = dyn Fn(Vec<Value>) -> Value;
[INFO] [stdout]   |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/eval/builtins/language_functions.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type LanguageFn = Fn(Vec<Expression>, &mut CallStack) -> Value;
[INFO] [stdout]   |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type LanguageFn = dyn Fn(Vec<Expression>, &mut CallStack) -> Value;
[INFO] [stdout]   |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/ast/parse.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |             n: tag!("null") >>
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout] help: `n` is captured in macro and introduced a unused variable
[INFO] [stdout]   --> src/ast/parse.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | / named!(pub expr<Expression>,
[INFO] [stdout] 20 | |     alt!(
[INFO] [stdout] 21 | |         do_parse!(
[INFO] [stdout] 22 | |             n: tag!("null") >>
[INFO] [stdout] ...  |
[INFO] [stdout] 58 | | );
[INFO] [stdout]    | |_^
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `do_parse` which comes from the expansion of the macro `named` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/ast/parse.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             n: tag!("true") >>
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout] help: `n` is captured in macro and introduced a unused variable
[INFO] [stdout]   --> src/ast/parse.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | / named!(pub expr<Expression>,
[INFO] [stdout] 20 | |     alt!(
[INFO] [stdout] 21 | |         do_parse!(
[INFO] [stdout] 22 | |             n: tag!("null") >>
[INFO] [stdout] ...  |
[INFO] [stdout] 58 | | );
[INFO] [stdout]    | |_^
[INFO] [stdout]    = note: this warning originates in the macro `do_parse` which comes from the expansion of the macro `named` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/ast/parse.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |             n: tag!("false") >>
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout] help: `n` is captured in macro and introduced a unused variable
[INFO] [stdout]   --> src/ast/parse.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | / named!(pub expr<Expression>,
[INFO] [stdout] 20 | |     alt!(
[INFO] [stdout] 21 | |         do_parse!(
[INFO] [stdout] 22 | |             n: tag!("null") >>
[INFO] [stdout] ...  |
[INFO] [stdout] 58 | | );
[INFO] [stdout]    | |_^
[INFO] [stdout]    = note: this warning originates in the macro `do_parse` which comes from the expansion of the macro `named` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/ast/function.rs:45:18
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn eq(&self, other: &Function) -> bool {
[INFO] [stdout]    |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func`
[INFO] [stdout]    --> src/eval/types.rs:110:40
[INFO] [stdout]     |
[INFO] [stdout] 110 |             if let Value::Function(ref func) = frame.borrow().returns {
[INFO] [stdout]     |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_func`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `stutter-rs` (lib) due to 9 previous errors; 9 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "71f333d0aeb6ee2f8d60f200d60eb60aa72bfb30619b4e64f2db25f8b8424da7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71f333d0aeb6ee2f8d60f200d60eb60aa72bfb30619b4e64f2db25f8b8424da7", kill_on_drop: false }`
[INFO] [stdout] 71f333d0aeb6ee2f8d60f200d60eb60aa72bfb30619b4e64f2db25f8b8424da7
