[INFO] fetching crate tshell 0.2.2...
[INFO] testing tshell-0.2.2 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate tshell 0.2.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate tshell 0.2.2
[INFO] finished tweaking crates.io crate tshell 0.2.2
[INFO] tweaked toml for crates.io crate tshell 0.2.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tshell 0.2.2 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "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" "+33835004928d3bf65db4d4712e1330766263b0bd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 19 packages to latest compatible versions
[INFO] [stderr]       Adding env_logger v0.3.5 (available: v0.11.10)
[INFO] [stderr]       Adding log v0.3.9 (available: v0.4.29)
[INFO] [stderr]       Adding rustyline v1.0.0 (available: v18.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6728f5a43e992c454fa34b40b317feff7bc6c6fd1d674595987c6c56442748b
[INFO] running `Command { std: "docker" "start" "-a" "f6728f5a43e992c454fa34b40b317feff7bc6c6fd1d674595987c6c56442748b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6728f5a43e992c454fa34b40b317feff7bc6c6fd1d674595987c6c56442748b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6728f5a43e992c454fa34b40b317feff7bc6c6fd1d674595987c6c56442748b", kill_on_drop: false }`
[INFO] [stdout] f6728f5a43e992c454fa34b40b317feff7bc6c6fd1d674595987c6c56442748b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71f044a842d4554bbf17a047fbb1cac91eb280993078ffee4aa2a437f457fc6b
[INFO] running `Command { std: "docker" "start" "-a" "71f044a842d4554bbf17a047fbb1cac91eb280993078ffee4aa2a437f457fc6b", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling encode_unicode v0.1.3
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling rustyline v1.0.0
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling tshell v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/commands.rs:312:42
[INFO] [stdout]     |
[INFO] [stdout] 312 |             context: Arc::new(Mutex::new((context)))
[INFO] [stdout]     |                                          ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 312 -             context: Arc::new(Mutex::new((context)))
[INFO] [stdout] 312 +             context: Arc::new(Mutex::new(context ))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/commands.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub type CallBack<T> = Fn(HashMap<String, &str>, &mut Option<T>, &HashMap<String, String>) -> CommandResult<Option<String>>;
[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] 10 | pub type CallBack<T> = dyn Fn(HashMap<String, &str>, &mut Option<T>, &HashMap<String, String>) -> CommandResult<Option<String>>;
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]    --> src/commands.rs:321:42
[INFO] [stdout]     |
[INFO] [stdout] 321 |         let mut levels: Vec<&str> = line.trim_left().split_whitespace().collect();
[INFO] [stdout]     |                                          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]     |
[INFO] [stdout] 321 -         let mut levels: Vec<&str> = line.trim_left().split_whitespace().collect();
[INFO] [stdout] 321 +         let mut levels: Vec<&str> = line.trim_start().split_whitespace().collect();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/commands.rs:320:101
[INFO] [stdout]     |
[INFO] [stdout] 320 |     pub fn get_suggestions<'a>(&'a self, line: &str, o_sub_node: Option<&'a Node<T>>) -> Option<Vec<&str>> {
[INFO] [stdout]     |                                 --                                       --                         ^^^^ the same lifetime is elided here
[INFO] [stdout]     |                                 |                                        |
[INFO] [stdout]     |                                 the lifetime is named here               the lifetime is named 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: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 320 |     pub fn get_suggestions<'a>(&'a self, line: &str, o_sub_node: Option<&'a Node<T>>) -> Option<Vec<&'a str>> {
[INFO] [stdout]     |                                                                                                      ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.02s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.4.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "71f044a842d4554bbf17a047fbb1cac91eb280993078ffee4aa2a437f457fc6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71f044a842d4554bbf17a047fbb1cac91eb280993078ffee4aa2a437f457fc6b", kill_on_drop: false }`
[INFO] [stdout] 71f044a842d4554bbf17a047fbb1cac91eb280993078ffee4aa2a437f457fc6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c525a8ae626aed7cd454fe64fc16cc46b499a59de320c5f086444860daecc0b
[INFO] running `Command { std: "docker" "start" "-a" "1c525a8ae626aed7cd454fe64fc16cc46b499a59de320c5f086444860daecc0b", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/commands.rs:312:42
[INFO] [stdout]     |
[INFO] [stdout] 312 |             context: Arc::new(Mutex::new((context)))
[INFO] [stdout]     |                                          ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 312 -             context: Arc::new(Mutex::new((context)))
[INFO] [stdout] 312 +             context: Arc::new(Mutex::new(context ))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/commands.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub type CallBack<T> = Fn(HashMap<String, &str>, &mut Option<T>, &HashMap<String, String>) -> CommandResult<Option<String>>;
[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] 10 | pub type CallBack<T> = dyn Fn(HashMap<String, &str>, &mut Option<T>, &HashMap<String, String>) -> CommandResult<Option<String>>;
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]    --> src/commands.rs:321:42
[INFO] [stdout]     |
[INFO] [stdout] 321 |         let mut levels: Vec<&str> = line.trim_left().split_whitespace().collect();
[INFO] [stdout]     |                                          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]     |
[INFO] [stdout] 321 -         let mut levels: Vec<&str> = line.trim_left().split_whitespace().collect();
[INFO] [stdout] 321 +         let mut levels: Vec<&str> = line.trim_start().split_whitespace().collect();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tshell v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/commands.rs:320:101
[INFO] [stdout]     |
[INFO] [stdout] 320 |     pub fn get_suggestions<'a>(&'a self, line: &str, o_sub_node: Option<&'a Node<T>>) -> Option<Vec<&str>> {
[INFO] [stdout]     |                                 --                                       --                         ^^^^ the same lifetime is elided here
[INFO] [stdout]     |                                 |                                        |
[INFO] [stdout]     |                                 the lifetime is named here               the lifetime is named 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: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 320 |     pub fn get_suggestions<'a>(&'a self, line: &str, o_sub_node: Option<&'a Node<T>>) -> Option<Vec<&'a str>> {
[INFO] [stdout]     |                                                                                                      ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> examples/example.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn world(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<St...
[INFO] [stdout]    |          ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `o_context`
[INFO] [stdout]   --> examples/example.rs:12:39
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn world(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<St...
[INFO] [stdout]    |                                       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_o_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `o_context`
[INFO] [stdout]   --> examples/example.rs:20:42
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn darkness(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option...
[INFO] [stdout]    |                                          ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_o_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `history`
[INFO] [stdout]   --> examples/example.rs:20:75
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...t: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<String>> {
[INFO] [stdout]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_history`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `o_context`
[INFO] [stdout]   --> examples/example.rs:30:45
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn new_context(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Opt...
[INFO] [stdout]    |                                             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_o_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `history`
[INFO] [stdout]   --> examples/example.rs:30:78
[INFO] [stdout]    |
[INFO] [stdout] 30 | ...t: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<String>> {
[INFO] [stdout]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_history`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/example.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let mut context = Context::default();
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/example.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let mut o_context = Some(context);
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `memory` is never read
[INFO] [stdout]  --> examples/example.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Context {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 9 |     memory: Option<String>
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Context` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/commands.rs:312:42
[INFO] [stdout]     |
[INFO] [stdout] 312 |             context: Arc::new(Mutex::new((context)))
[INFO] [stdout]     |                                          ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 312 -             context: Arc::new(Mutex::new((context)))
[INFO] [stdout] 312 +             context: Arc::new(Mutex::new(context ))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/commands.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub type CallBack<T> = Fn(HashMap<String, &str>, &mut Option<T>, &HashMap<String, String>) -> CommandResult<Option<String>>;
[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] 10 | pub type CallBack<T> = dyn Fn(HashMap<String, &str>, &mut Option<T>, &HashMap<String, String>) -> CommandResult<Option<String>>;
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]    --> src/commands.rs:321:42
[INFO] [stdout]     |
[INFO] [stdout] 321 |         let mut levels: Vec<&str> = line.trim_left().split_whitespace().collect();
[INFO] [stdout]     |                                          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]     |
[INFO] [stdout] 321 -         let mut levels: Vec<&str> = line.trim_left().split_whitespace().collect();
[INFO] [stdout] 321 +         let mut levels: Vec<&str> = line.trim_start().split_whitespace().collect();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/commands.rs:320:101
[INFO] [stdout]     |
[INFO] [stdout] 320 |     pub fn get_suggestions<'a>(&'a self, line: &str, o_sub_node: Option<&'a Node<T>>) -> Option<Vec<&str>> {
[INFO] [stdout]     |                                 --                                       --                         ^^^^ the same lifetime is elided here
[INFO] [stdout]     |                                 |                                        |
[INFO] [stdout]     |                                 the lifetime is named here               the lifetime is named 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: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 320 |     pub fn get_suggestions<'a>(&'a self, line: &str, o_sub_node: Option<&'a Node<T>>) -> Option<Vec<&'a str>> {
[INFO] [stdout]     |                                                                                                      ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.07s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.4.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "1c525a8ae626aed7cd454fe64fc16cc46b499a59de320c5f086444860daecc0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c525a8ae626aed7cd454fe64fc16cc46b499a59de320c5f086444860daecc0b", kill_on_drop: false }`
[INFO] [stdout] 1c525a8ae626aed7cd454fe64fc16cc46b499a59de320c5f086444860daecc0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8db761f99801b7af4bd45b61a03bde5c7b102795ca000e88266dec09e12fd43d
[INFO] running `Command { std: "docker" "start" "-a" "8db761f99801b7af4bd45b61a03bde5c7b102795ca000e88266dec09e12fd43d", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/commands.rs:312:42
[INFO] [stderr]     |
[INFO] [stderr] 312 |             context: Arc::new(Mutex::new((context)))
[INFO] [stderr]     |                                          ^       ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 312 -             context: Arc::new(Mutex::new((context)))
[INFO] [stderr] 312 +             context: Arc::new(Mutex::new(context ))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/commands.rs:10:24
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub type CallBack<T> = Fn(HashMap<String, &str>, &mut Option<T>, &HashMap<String, String>) -> CommandResult<Option<String>>;
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub type CallBack<T> = dyn Fn(HashMap<String, &str>, &mut Option<T>, &HashMap<String, String>) -> CommandResult<Option<String>>;
[INFO] [stderr]    |                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stderr]    --> src/commands.rs:321:42
[INFO] [stderr]     |
[INFO] [stderr] 321 |         let mut levels: Vec<&str> = line.trim_left().split_whitespace().collect();
[INFO] [stderr]     |                                          ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] help: replace the use of the deprecated method
[INFO] [stderr]     |
[INFO] [stderr] 321 -         let mut levels: Vec<&str> = line.trim_left().split_whitespace().collect();
[INFO] [stderr] 321 +         let mut levels: Vec<&str> = line.trim_start().split_whitespace().collect();
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/commands.rs:320:101
[INFO] [stderr]     |
[INFO] [stderr] 320 |     pub fn get_suggestions<'a>(&'a self, line: &str, o_sub_node: Option<&'a Node<T>>) -> Option<Vec<&str>> {
[INFO] [stderr]     |                                 --                                       --                         ^^^^ the same lifetime is elided here
[INFO] [stderr]     |                                 |                                        |
[INFO] [stderr]     |                                 the lifetime is named here               the lifetime is named 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: consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 320 |     pub fn get_suggestions<'a>(&'a self, line: &str, o_sub_node: Option<&'a Node<T>>) -> Option<Vec<&'a str>> {
[INFO] [stderr]     |                                                                                                      ++
[INFO] [stderr] 
[INFO] [stderr] warning: `tshell` (lib) generated 4 warnings (run `cargo fix --lib -p tshell` to apply 4 suggestions)
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> examples/example.rs:12:10
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn world(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<St...
[INFO] [stderr]    |          ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `o_context`
[INFO] [stderr]   --> examples/example.rs:12:39
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn world(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<St...
[INFO] [stderr]    |                                       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_o_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `o_context`
[INFO] [stderr]   --> examples/example.rs:20:42
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn darkness(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option...
[INFO] [stderr]    |                                          ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_o_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `history`
[INFO] [stderr]   --> examples/example.rs:20:75
[INFO] [stderr]    |
[INFO] [stderr] 20 | ...t: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<String>> {
[INFO] [stderr]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_history`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `o_context`
[INFO] [stderr]   --> examples/example.rs:30:45
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn new_context(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Opt...
[INFO] [stderr]    |                                             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_o_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `history`
[INFO] [stderr]   --> examples/example.rs:30:78
[INFO] [stderr]    |
[INFO] [stderr] 30 | ...t: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<String>> {
[INFO] [stderr]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_history`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/example.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let mut context = Context::default();
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/example.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let mut o_context = Some(context);
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field `memory` is never read
[INFO] [stderr]  --> examples/example.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct Context {
[INFO] [stderr]   |            ------- field in this struct
[INFO] [stderr] 9 |     memory: Option<String>
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Context` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tshell` (example "example") generated 9 warnings (run `cargo fix --example "example" -p tshell` to apply 8 suggestions)
[INFO] [stderr] warning: `tshell` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.4.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tshell-68e3830ee3cc0a85)
[INFO] [stdout] 
[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 tshell
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/commands.rs:312:42
[INFO] [stderr]     |
[INFO] [stderr] 312 |             context: Arc::new(Mutex::new((context)))
[INFO] [stderr]     |                                          ^       ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 312 -             context: Arc::new(Mutex::new((context)))
[INFO] [stderr] 312 +             context: Arc::new(Mutex::new(context ))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[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] running `Command { std: "docker" "inspect" "8db761f99801b7af4bd45b61a03bde5c7b102795ca000e88266dec09e12fd43d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8db761f99801b7af4bd45b61a03bde5c7b102795ca000e88266dec09e12fd43d", kill_on_drop: false }`
[INFO] [stdout] 8db761f99801b7af4bd45b61a03bde5c7b102795ca000e88266dec09e12fd43d
