[INFO] cloning repository https://github.com/jjgarzella/interpy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jjgarzella/interpy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjgarzella%2Finterpy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjgarzella%2Finterpy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c63d31624f5bf90cb6d664d1058d2f9eeef121f7
[INFO] checking jjgarzella/interpy against master#e1613686e0efc80a1a18b1263625450a8de3fb04 for pr-154492-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjgarzella%2Finterpy" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jjgarzella/interpy
[INFO] finished tweaking git repo https://github.com/jjgarzella/interpy
[INFO] tweaked toml for git repo https://github.com/jjgarzella/interpy written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jjgarzella/interpy on toolchain e1613686e0efc80a1a18b1263625450a8de3fb04
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e1613686e0efc80a1a18b1263625450a8de3fb04" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jjgarzella/interpy 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" "+e1613686e0efc80a1a18b1263625450a8de3fb04" "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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+e1613686e0efc80a1a18b1263625450a8de3fb04" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be22970c22f3ac26163f7c289975069c5e91387b8c2655d705ae2cff9fe0a84e
[INFO] running `Command { std: "docker" "start" "-a" "be22970c22f3ac26163f7c289975069c5e91387b8c2655d705ae2cff9fe0a84e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be22970c22f3ac26163f7c289975069c5e91387b8c2655d705ae2cff9fe0a84e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be22970c22f3ac26163f7c289975069c5e91387b8c2655d705ae2cff9fe0a84e", kill_on_drop: false }`
[INFO] [stdout] be22970c22f3ac26163f7c289975069c5e91387b8c2655d705ae2cff9fe0a84e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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" "+e1613686e0efc80a1a18b1263625450a8de3fb04" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a1d5954b960143f21315680eae786d158fae237da424ed50a933dfc38eba283
[INFO] running `Command { std: "docker" "start" "-a" "2a1d5954b960143f21315680eae786d158fae237da424ed50a933dfc38eba283", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]     Checking interpy v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(box_syntax, box_patterns)]
[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/parse.rs:20:49
[INFO] [stdout]    |
[INFO] [stdout] 20 |             if syntax.len() == 2 => Expr::Apply(box parse(&syntax[0]), 
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 20 -             if syntax.len() == 2 => Expr::Apply(box parse(&syntax[0]), 
[INFO] [stdout] 20 +             if syntax.len() == 2 => Expr::Apply(Box::new(parse(&syntax[0])), 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/parse.rs:21:52
[INFO] [stdout]    |
[INFO] [stdout] 21 | ...                   box parse(&syntax[1])),
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 21 -                                                    box parse(&syntax[1])),
[INFO] [stdout] 21 +                                                    Box::new(parse(&syntax[1]))),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/parse.rs:24:57
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 Symbol(ref p) if p == "+" => Expr::Plus(box parse(&syntax[1]), 
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 24 -                 Symbol(ref p) if p == "+" => Expr::Plus(box parse(&syntax[1]), 
[INFO] [stdout] 24 +                 Symbol(ref p) if p == "+" => Expr::Plus(Box::new(parse(&syntax[1])), 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/parse.rs:25:55
[INFO] [stdout]    |
[INFO] [stdout] 25 | ...                   box parse(&syntax[2])),
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 25 -                                                       box parse(&syntax[2])),
[INFO] [stdout] 25 +                                                       Box::new(parse(&syntax[2]))),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/parse.rs:26:58
[INFO] [stdout]    |
[INFO] [stdout] 26 |                 Symbol(ref t) if t == "*" => Expr::Times(box parse(&syntax[1]), 
[INFO] [stdout]    |                                                          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 26 -                 Symbol(ref t) if t == "*" => Expr::Times(box parse(&syntax[1]), 
[INFO] [stdout] 26 +                 Symbol(ref t) if t == "*" => Expr::Times(Box::new(parse(&syntax[1])), 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/parse.rs:27:56
[INFO] [stdout]    |
[INFO] [stdout] 27 | ...                   box parse(&syntax[2])),
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 27 -                                                        box parse(&syntax[2])),
[INFO] [stdout] 27 +                                                        Box::new(parse(&syntax[2]))),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/parse.rs:30:64
[INFO] [stdout]    |
[INFO] [stdout] 30 |                         Symbol(ref s) => Expr::Func(s.clone(), box parse(&syntax[2])),
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 30 -                         Symbol(ref s) => Expr::Func(s.clone(), box parse(&syntax[2])),
[INFO] [stdout] 30 +                         Symbol(ref s) => Expr::Func(s.clone(), Box::new(parse(&syntax[2]))),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/expr.rs:151:70
[INFO] [stdout]     |
[INFO] [stdout] 151 |         let fexpr = Apply(box Func("x".to_string(), box Plus(expr(2),box Id("x".to_string()))), expr(2));
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 151 -         let fexpr = Apply(box Func("x".to_string(), box Plus(expr(2),box Id("x".to_string()))), expr(2));
[INFO] [stdout] 151 +         let fexpr = Apply(box Func("x".to_string(), box Plus(expr(2),Box::new(Id("x".to_string())))), expr(2));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/expr.rs:151:53
[INFO] [stdout]     |
[INFO] [stdout] 151 |         let fexpr = Apply(box Func("x".to_string(), box Plus(expr(2),box Id("x".to_string()))), expr(2));
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 151 -         let fexpr = Apply(box Func("x".to_string(), box Plus(expr(2),box Id("x".to_string()))), expr(2));
[INFO] [stdout] 151 +         let fexpr = Apply(box Func("x".to_string(), Box::new(Plus(expr(2),box Id("x".to_string())))), expr(2));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/expr.rs:151:27
[INFO] [stdout]     |
[INFO] [stdout] 151 |         let fexpr = Apply(box Func("x".to_string(), box Plus(expr(2),box Id("x".to_string()))), expr(2));
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 151 -         let fexpr = Apply(box Func("x".to_string(), box Plus(expr(2),box Id("x".to_string()))), expr(2));
[INFO] [stdout] 151 +         let fexpr = Apply(Box::new(Func("x".to_string(), box Plus(expr(2),box Id("x".to_string())))), expr(2));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/genericsyntax.rs:45:17
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 try!(write!(f, "( "));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/genericsyntax.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     try!(write!(f, "{} ", tree));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(box_syntax, box_patterns)]
[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/parse.rs:20:49
[INFO] [stdout]    |
[INFO] [stdout] 20 |             if syntax.len() == 2 => Expr::Apply(box parse(&syntax[0]), 
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 20 -             if syntax.len() == 2 => Expr::Apply(box parse(&syntax[0]), 
[INFO] [stdout] 20 +             if syntax.len() == 2 => Expr::Apply(Box::new(parse(&syntax[0])), 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/parse.rs:21:52
[INFO] [stdout]    |
[INFO] [stdout] 21 | ...                   box parse(&syntax[1])),
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 21 -                                                    box parse(&syntax[1])),
[INFO] [stdout] 21 +                                                    Box::new(parse(&syntax[1]))),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/parse.rs:24:57
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 Symbol(ref p) if p == "+" => Expr::Plus(box parse(&syntax[1]), 
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 24 -                 Symbol(ref p) if p == "+" => Expr::Plus(box parse(&syntax[1]), 
[INFO] [stdout] 24 +                 Symbol(ref p) if p == "+" => Expr::Plus(Box::new(parse(&syntax[1])), 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/parse.rs:25:55
[INFO] [stdout]    |
[INFO] [stdout] 25 | ...                   box parse(&syntax[2])),
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 25 -                                                       box parse(&syntax[2])),
[INFO] [stdout] 25 +                                                       Box::new(parse(&syntax[2]))),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/parse.rs:26:58
[INFO] [stdout]    |
[INFO] [stdout] 26 |                 Symbol(ref t) if t == "*" => Expr::Times(box parse(&syntax[1]), 
[INFO] [stdout]    |                                                          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 26 -                 Symbol(ref t) if t == "*" => Expr::Times(box parse(&syntax[1]), 
[INFO] [stdout] 26 +                 Symbol(ref t) if t == "*" => Expr::Times(Box::new(parse(&syntax[1])), 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/parse.rs:27:56
[INFO] [stdout]    |
[INFO] [stdout] 27 | ...                   box parse(&syntax[2])),
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 27 -                                                        box parse(&syntax[2])),
[INFO] [stdout] 27 +                                                        Box::new(parse(&syntax[2]))),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/parse.rs:30:64
[INFO] [stdout]    |
[INFO] [stdout] 30 |                         Symbol(ref s) => Expr::Func(s.clone(), box parse(&syntax[2])),
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 30 -                         Symbol(ref s) => Expr::Func(s.clone(), box parse(&syntax[2])),
[INFO] [stdout] 30 +                         Symbol(ref s) => Expr::Func(s.clone(), Box::new(parse(&syntax[2]))),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/expr.rs:151:70
[INFO] [stdout]     |
[INFO] [stdout] 151 |         let fexpr = Apply(box Func("x".to_string(), box Plus(expr(2),box Id("x".to_string()))), expr(2));
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 151 -         let fexpr = Apply(box Func("x".to_string(), box Plus(expr(2),box Id("x".to_string()))), expr(2));
[INFO] [stdout] 151 +         let fexpr = Apply(box Func("x".to_string(), box Plus(expr(2),Box::new(Id("x".to_string())))), expr(2));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/expr.rs:151:53
[INFO] [stdout]     |
[INFO] [stdout] 151 |         let fexpr = Apply(box Func("x".to_string(), box Plus(expr(2),box Id("x".to_string()))), expr(2));
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 151 -         let fexpr = Apply(box Func("x".to_string(), box Plus(expr(2),box Id("x".to_string()))), expr(2));
[INFO] [stdout] 151 +         let fexpr = Apply(box Func("x".to_string(), Box::new(Plus(expr(2),box Id("x".to_string())))), expr(2));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/expr.rs:151:27
[INFO] [stdout]     |
[INFO] [stdout] 151 |         let fexpr = Apply(box Func("x".to_string(), box Plus(expr(2),box Id("x".to_string()))), expr(2));
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 151 -         let fexpr = Apply(box Func("x".to_string(), box Plus(expr(2),box Id("x".to_string()))), expr(2));
[INFO] [stdout] 151 +         let fexpr = Apply(Box::new(Func("x".to_string(), box Plus(expr(2),box Id("x".to_string())))), expr(2));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/tokenizer.rs:72:51
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn consume_while(it: &mut Peekable<Chars>, cond: &Fn(char) -> bool) -> Vec<char> {
[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] 72 | fn consume_while(it: &mut Peekable<Chars>, cond: &dyn Fn(char) -> bool) -> Vec<char> {
[INFO] [stdout]    |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/expr.rs:87:23
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn binary_num_op(op: &Fn(i64, i64) -> i64, left: Value, right: 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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn binary_num_op(op: &dyn Fn(i64, i64) -> i64, left: Value, right: Value) -> Value {
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/genericsyntax.rs:45:17
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 try!(write!(f, "( "));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/genericsyntax.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     try!(write!(f, "{} ", tree));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/tokenizer.rs:72:51
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn consume_while(it: &mut Peekable<Chars>, cond: &Fn(char) -> bool) -> Vec<char> {
[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] 72 | fn consume_while(it: &mut Peekable<Chars>, cond: &dyn Fn(char) -> bool) -> Vec<char> {
[INFO] [stdout]    |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/expr.rs:87:23
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn binary_num_op(op: &Fn(i64, i64) -> i64, left: Value, right: 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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn binary_num_op(op: &dyn Fn(i64, i64) -> i64, left: Value, right: Value) -> Value {
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `interpy` (lib test) due to 11 previous errors; 4 warnings emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `interpy` (lib) due to 11 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "2a1d5954b960143f21315680eae786d158fae237da424ed50a933dfc38eba283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a1d5954b960143f21315680eae786d158fae237da424ed50a933dfc38eba283", kill_on_drop: false }`
[INFO] [stdout] 2a1d5954b960143f21315680eae786d158fae237da424ed50a933dfc38eba283
