[INFO] fetching crate simple-text-editor 0.2.3...
[INFO] testing simple-text-editor-0.2.3 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate simple-text-editor 0.2.3 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate simple-text-editor 0.2.3
[INFO] finished tweaking crates.io crate simple-text-editor 0.2.3
[INFO] tweaked toml for crates.io crate simple-text-editor 0.2.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate simple-text-editor 0.2.3 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate simple-text-editor 0.2.3 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26308950de14ec4b1f4dc7fadee370d43913ee325823f003b0bc50f3314ab875
[INFO] running `Command { std: "docker" "start" "-a" "26308950de14ec4b1f4dc7fadee370d43913ee325823f003b0bc50f3314ab875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26308950de14ec4b1f4dc7fadee370d43913ee325823f003b0bc50f3314ab875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26308950de14ec4b1f4dc7fadee370d43913ee325823f003b0bc50f3314ab875", kill_on_drop: false }`
[INFO] [stdout] 26308950de14ec4b1f4dc7fadee370d43913ee325823f003b0bc50f3314ab875
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 820d63d9bd40cce54d64870828c76f07e450cb09ac4bda46e9bcec7242c54961
[INFO] running `Command { std: "docker" "start" "-a" "820d63d9bd40cce54d64870828c76f07e450cb09ac4bda46e9bcec7242c54961", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple-text-editor v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ops.rs:108:52
[INFO] [stdout]     |
[INFO] [stdout] 108 | fn parse_delete_or_print(op: char, value_to_parse: &str) -> Operation {
[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] 108 | fn parse_delete_or_print(op: char, value_to_parse: &str) -> Operation<'_> {
[INFO] [stdout]     |                                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ops.rs:143:21
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub fn parse(input: &str) -> Option<(usize, Vec<Operation>)> {
[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] 143 | pub fn parse(input: &str) -> Option<(usize, Vec<Operation<'_>>)> {
[INFO] [stdout]     |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/text.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 | /             format!(
[INFO] [stdout] 47 | |                 "The input exceeds the max number of operations permitted. ({})",
[INFO] [stdout] 48 | |                 MAX_OPS
[INFO] [stdout] 49 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 46 ~             
[INFO] [stdout] 47 |                 "The input exceeds the max number of operations permitted. ({})",
[INFO] [stdout] 48 |                 MAX_OPS
[INFO] [stdout] 49 ~             
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/text.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 | ...   format!("The provided count doesn't match the number of valid operations parsed. (count = {}, valid operations = {})", self.num_ops, ops.len())
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 53 -             format!("The provided count doesn't match the number of valid operations parsed. (count = {}, valid operations = {})", self.num_ops, ops.len())
[INFO] [stdout] 53 +             "The provided count doesn't match the number of valid operations parsed. (count = {}, valid operations = {})", self.num_ops, ops.len()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/text.rs:73:25
[INFO] [stdout]    |
[INFO] [stdout] 73 |                         format!("The input exceeds the max number of characters which can be deleted. ({})", MAX_DELETE_OPS)
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 73 -                         format!("The input exceeds the max number of characters which can be deleted. ({})", MAX_DELETE_OPS)
[INFO] [stdout] 73 +                         "The input exceeds the max number of characters which can be deleted. ({})", MAX_DELETE_OPS
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "820d63d9bd40cce54d64870828c76f07e450cb09ac4bda46e9bcec7242c54961", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "820d63d9bd40cce54d64870828c76f07e450cb09ac4bda46e9bcec7242c54961", kill_on_drop: false }`
[INFO] [stdout] 820d63d9bd40cce54d64870828c76f07e450cb09ac4bda46e9bcec7242c54961
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d008137177dd67f84f7520d43234c8ed8581a0f380c8c2e670a57d975f68e567
[INFO] running `Command { std: "docker" "start" "-a" "d008137177dd67f84f7520d43234c8ed8581a0f380c8c2e670a57d975f68e567", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ops.rs:108:52
[INFO] [stdout]     |
[INFO] [stdout] 108 | fn parse_delete_or_print(op: char, value_to_parse: &str) -> Operation {
[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] 108 | fn parse_delete_or_print(op: char, value_to_parse: &str) -> Operation<'_> {
[INFO] [stdout]     |                                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ops.rs:143:21
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub fn parse(input: &str) -> Option<(usize, Vec<Operation>)> {
[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] 143 | pub fn parse(input: &str) -> Option<(usize, Vec<Operation<'_>>)> {
[INFO] [stdout]     |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/text.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 | /             format!(
[INFO] [stdout] 47 | |                 "The input exceeds the max number of operations permitted. ({})",
[INFO] [stdout] 48 | |                 MAX_OPS
[INFO] [stdout] 49 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 46 ~             
[INFO] [stdout] 47 |                 "The input exceeds the max number of operations permitted. ({})",
[INFO] [stdout] 48 |                 MAX_OPS
[INFO] [stdout] 49 ~             
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/text.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 | ...   format!("The provided count doesn't match the number of valid operations parsed. (count = {}, valid operations = {})", self.num_ops, ops.len())
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 53 -             format!("The provided count doesn't match the number of valid operations parsed. (count = {}, valid operations = {})", self.num_ops, ops.len())
[INFO] [stdout] 53 +             "The provided count doesn't match the number of valid operations parsed. (count = {}, valid operations = {})", self.num_ops, ops.len()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/text.rs:73:25
[INFO] [stdout]    |
[INFO] [stdout] 73 |                         format!("The input exceeds the max number of characters which can be deleted. ({})", MAX_DELETE_OPS)
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 73 -                         format!("The input exceeds the max number of characters which can be deleted. ({})", MAX_DELETE_OPS)
[INFO] [stdout] 73 +                         "The input exceeds the max number of characters which can be deleted. ({})", MAX_DELETE_OPS
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling simple-text-editor v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ops.rs:108:52
[INFO] [stdout]     |
[INFO] [stdout] 108 | fn parse_delete_or_print(op: char, value_to_parse: &str) -> Operation {
[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] 108 | fn parse_delete_or_print(op: char, value_to_parse: &str) -> Operation<'_> {
[INFO] [stdout]     |                                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ops.rs:143:21
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub fn parse(input: &str) -> Option<(usize, Vec<Operation>)> {
[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] 143 | pub fn parse(input: &str) -> Option<(usize, Vec<Operation<'_>>)> {
[INFO] [stdout]     |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/tests.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout]  4 | /     &[
[INFO] [stdout]  5 | |         ("1 abc", Operation::Append("abc")),
[INFO] [stdout]  6 | |         ("1  abc", Operation::Append(" abc")),
[INFO] [stdout]  7 | |         ("1  ", Operation::Append(" ")),
[INFO] [stdout] ...  |
[INFO] [stdout] 22 | |         assert_eq!(Operation::from(case.0), case.1);
[INFO] [stdout] 23 | |     });
[INFO] [stdout]    | |______^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout]  4 |     let _ = &[
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/text.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 | /             format!(
[INFO] [stdout] 47 | |                 "The input exceeds the max number of operations permitted. ({})",
[INFO] [stdout] 48 | |                 MAX_OPS
[INFO] [stdout] 49 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 46 ~             
[INFO] [stdout] 47 |                 "The input exceeds the max number of operations permitted. ({})",
[INFO] [stdout] 48 |                 MAX_OPS
[INFO] [stdout] 49 ~             
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/text.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 | ...   format!("The provided count doesn't match the number of valid operations parsed. (count = {}, valid operations = {})", self.num_ops, ops.len())
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 53 -             format!("The provided count doesn't match the number of valid operations parsed. (count = {}, valid operations = {})", self.num_ops, ops.len())
[INFO] [stdout] 53 +             "The provided count doesn't match the number of valid operations parsed. (count = {}, valid operations = {})", self.num_ops, ops.len()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/text.rs:73:25
[INFO] [stdout]    |
[INFO] [stdout] 73 |                         format!("The input exceeds the max number of characters which can be deleted. ({})", MAX_DELETE_OPS)
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 73 -                         format!("The input exceeds the max number of characters which can be deleted. ({})", MAX_DELETE_OPS)
[INFO] [stdout] 73 +                         "The input exceeds the max number of characters which can be deleted. ({})", MAX_DELETE_OPS
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "d008137177dd67f84f7520d43234c8ed8581a0f380c8c2e670a57d975f68e567", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d008137177dd67f84f7520d43234c8ed8581a0f380c8c2e670a57d975f68e567", kill_on_drop: false }`
[INFO] [stdout] d008137177dd67f84f7520d43234c8ed8581a0f380c8c2e670a57d975f68e567
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4bd216af0308188b939a94aed1d9d9b276530f82cc27d4e679b38533e6228f98
[INFO] running `Command { std: "docker" "start" "-a" "4bd216af0308188b939a94aed1d9d9b276530f82cc27d4e679b38533e6228f98", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/ops.rs:108:52
[INFO] [stderr]     |
[INFO] [stderr] 108 | fn parse_delete_or_print(op: char, value_to_parse: &str) -> Operation {
[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] 108 | fn parse_delete_or_print(op: char, value_to_parse: &str) -> Operation<'_> {
[INFO] [stderr]     |                                                                      ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/ops.rs:143:21
[INFO] [stderr]     |
[INFO] [stderr] 143 | pub fn parse(input: &str) -> Option<(usize, Vec<Operation>)> {
[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] 143 | pub fn parse(input: &str) -> Option<(usize, Vec<Operation<'_>>)> {
[INFO] [stderr]     |                                                          ++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/text.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 | /             format!(
[INFO] [stderr] 47 | |                 "The input exceeds the max number of operations permitted. ({})",
[INFO] [stderr] 48 | |                 MAX_OPS
[INFO] [stderr] 49 | |             )
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 46 ~             
[INFO] [stderr] 47 |                 "The input exceeds the max number of operations permitted. ({})",
[INFO] [stderr] 48 |                 MAX_OPS
[INFO] [stderr] 49 ~             
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/text.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 | ...   format!("The provided count doesn't match the number of valid operations parsed. (count = {}, valid operations = {})", self.num_ops, ops.len())
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 53 -             format!("The provided count doesn't match the number of valid operations parsed. (count = {}, valid operations = {})", self.num_ops, ops.len())
[INFO] [stderr] 53 +             "The provided count doesn't match the number of valid operations parsed. (count = {}, valid operations = {})", self.num_ops, ops.len()
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/text.rs:73:25
[INFO] [stderr]    |
[INFO] [stderr] 73 |                         format!("The input exceeds the max number of characters which can be deleted. ({})", MAX_DELETE_OPS)
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 73 -                         format!("The input exceeds the max number of characters which can be deleted. ({})", MAX_DELETE_OPS)
[INFO] [stderr] 73 +                         "The input exceeds the max number of characters which can be deleted. ({})", MAX_DELETE_OPS
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `simple-text-editor` (lib) generated 5 warnings (run `cargo fix --lib -p simple-text-editor` to apply 5 suggestions)
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/tests.rs:4:5
[INFO] [stderr]    |
[INFO] [stderr]  4 | /     &[
[INFO] [stderr]  5 | |         ("1 abc", Operation::Append("abc")),
[INFO] [stderr]  6 | |         ("1  abc", Operation::Append(" abc")),
[INFO] [stderr]  7 | |         ("1  ", Operation::Append(" ")),
[INFO] [stderr] ...  |
[INFO] [stderr] 22 | |         assert_eq!(Operation::from(case.0), case.1);
[INFO] [stderr] 23 | |     });
[INFO] [stderr]    | |______^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr]  4 |     let _ = &[
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `simple-text-editor` (lib test) generated 6 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/simple_text_editor-c94c1cdbfa44dd0c)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_op_from_str ... ok
[INFO] [stdout] test tests::test_parse_input ... ok
[INFO] [stdout] test tests::test_apply_ops ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/editor.rs (/opt/rustwide/target/debug/deps/editor-527b91c521562b21)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests simple_text_editor
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/ops.rs - ops::Operation::Undo (line 47) ... ok
[INFO] [stdout] test src/ops.rs - ops::Operation::Invalid (line 59) ... ok
[INFO] [stdout] test src/ops.rs - ops::Operation<'a> (line 73) ... ok
[INFO] [stdout] test src/ops.rs - ops::Operation::Print (line 33) ... ok
[INFO] [stdout] test src/ops.rs - ops::parse (line 121) ... ok
[INFO] [stdout] test src/ops.rs - ops::Operation::Append (line 7) ... ok
[INFO] [stdout] test src/text.rs - text::Text (line 19) ... ok
[INFO] [stdout] test src/ops.rs - ops::Operation::Delete (line 20) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.67s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4bd216af0308188b939a94aed1d9d9b276530f82cc27d4e679b38533e6228f98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bd216af0308188b939a94aed1d9d9b276530f82cc27d4e679b38533e6228f98", kill_on_drop: false }`
[INFO] [stdout] 4bd216af0308188b939a94aed1d9d9b276530f82cc27d4e679b38533e6228f98
