[INFO] cloning repository https://github.com/matklad/s
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matklad/s" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2Fs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2Fs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7be36a4cf85c5dbb1046a41ef01c8d441c60f98f
[INFO] checking matklad/s against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2Fs" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matklad/s on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/matklad/s
[INFO] finished tweaking git repo https://github.com/matklad/s
[INFO] tweaked toml for git repo https://github.com/matklad/s written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/matklad/s 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 695176eabcb9d31083e591c57d763e1bbe88c0159aaa9e6ac19f1de59079ec85
[INFO] running `Command { std: "docker" "start" "-a" "695176eabcb9d31083e591c57d763e1bbe88c0159aaa9e6ac19f1de59079ec85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "695176eabcb9d31083e591c57d763e1bbe88c0159aaa9e6ac19f1de59079ec85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "695176eabcb9d31083e591c57d763e1bbe88c0159aaa9e6ac19f1de59079ec85", kill_on_drop: false }`
[INFO] [stdout] 695176eabcb9d31083e591c57d763e1bbe88c0159aaa9e6ac19f1de59079ec85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9724a64e0aff05ef01a011a718c5649b44a5e0e025b522ca39d279ebc30655f4
[INFO] running `Command { std: "docker" "start" "-a" "9724a64e0aff05ef01a011a718c5649b44a5e0e025b522ca39d279ebc30655f4", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking s v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sexpr.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     try!(start.fmt(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/sexpr.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         try!(x.fmt(f));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sexpr.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |             try!(sep.fmt(f));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:112:20
[INFO] [stdout]     |
[INFO] [stdout] 112 |                 if try!(eval_number(env, cond)) != 0 {
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:124:17
[INFO] [stdout]     |
[INFO] [stdout] 124 |                 try!(args.iter().map(|arg| {
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:144:42
[INFO] [stdout]     |
[INFO] [stdout] 144 |                 let values: Vec<Value> = try!(values.iter().map(|v| eval(val_env, v)).collect());
[INFO] [stdout]     |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:163:33
[INFO] [stdout]     |
[INFO] [stdout] 163 |                 let desugared = try!(f(args));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:292:40
[INFO] [stdout]     |
[INFO] [stdout] 292 |                 let args: Vec<Value> = try!(args.iter().map(|a| eval(env, a)).collect());
[INFO] [stdout]     |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:407:11
[INFO] [stdout]     |
[INFO] [stdout] 407 |     match try!(eval(env, expr)) {
[INFO] [stdout]     |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:422:23
[INFO] [stdout]     |
[INFO] [stdout] 422 |             let fun = try!(eval(env, &args[0]));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Closure(Rc<Fn(&Env, &[Sexpr]) -> Result<Value, Error>>)
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Closure(Rc<dyn Fn(&Env, &[Sexpr]) -> Result<Value, Error>>)
[INFO] [stdout]    |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:27:19
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub type Env = Rc<Fn(&str) -> Option<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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub type Env = Rc<dyn Fn(&str) -> Option<Value>>;
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sexpr.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     try!(start.fmt(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/sexpr.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         try!(x.fmt(f));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sexpr.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |             try!(sep.fmt(f));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:112:20
[INFO] [stdout]     |
[INFO] [stdout] 112 |                 if try!(eval_number(env, cond)) != 0 {
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:124:17
[INFO] [stdout]     |
[INFO] [stdout] 124 |                 try!(args.iter().map(|arg| {
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:144:42
[INFO] [stdout]     |
[INFO] [stdout] 144 |                 let values: Vec<Value> = try!(values.iter().map(|v| eval(val_env, v)).collect());
[INFO] [stdout]     |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:163:33
[INFO] [stdout]     |
[INFO] [stdout] 163 |                 let desugared = try!(f(args));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:292:40
[INFO] [stdout]     |
[INFO] [stdout] 292 |                 let args: Vec<Value> = try!(args.iter().map(|a| eval(env, a)).collect());
[INFO] [stdout]     |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:407:11
[INFO] [stdout]     |
[INFO] [stdout] 407 |     match try!(eval(env, expr)) {
[INFO] [stdout]     |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:422:23
[INFO] [stdout]     |
[INFO] [stdout] 422 |             let fun = try!(eval(env, &args[0]));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:733:64
[INFO] [stdout]     |
[INFO] [stdout] 733 |         let closure = Value::Closure(Rc::new(|env, args| match try!(eval(env, &args[0])) {
[INFO] [stdout]     |                                                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Closure(Rc<Fn(&Env, &[Sexpr]) -> Result<Value, Error>>)
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Closure(Rc<dyn Fn(&Env, &[Sexpr]) -> Result<Value, Error>>)
[INFO] [stdout]    |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:27:19
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub type Env = Rc<Fn(&str) -> Option<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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub type Env = Rc<dyn Fn(&str) -> Option<Value>>;
[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/sexpr.rs:57:15
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let s = s.trim_left();
[INFO] [stdout]    |               ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let s = s.trim_start();
[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/sexpr.rs:68:19
[INFO] [stdout]    |
[INFO] [stdout] 68 |             s = s.trim_left();
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 68 |             s = s.trim_start();
[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/sexpr.rs:57:15
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let s = s.trim_left();
[INFO] [stdout]    |               ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let s = s.trim_start();
[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/sexpr.rs:68:19
[INFO] [stdout]    |
[INFO] [stdout] 68 |             s = s.trim_left();
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 68 |             s = s.trim_start();
[INFO] [stdout]    |                   ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Number`, `Atom`, `List`, and `Closure` are never constructed
[INFO] [stdout]   --> src/eval.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum Value {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 11 |     Number(i64),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 12 |     Atom(String),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 13 |     List(Vec<Value>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     Closure(Rc<Fn(&Env, &[Sexpr]) -> Result<Value, Error>>)
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `closure`, `number`, `from_bool`, and `from_sexpr` are never used
[INFO] [stdout]   --> src/eval.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl Value {
[INFO] [stdout]    | ---------- associated functions in this implementation
[INFO] [stdout] 31 |     pub fn closure<F: Fn(&Env, &[Sexpr]) -> Result<Value, Error> + 'static>(f: F) -> Value {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn number(i: i64) -> Value {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn from_bool(b: bool) -> Value {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn from_sexpr(sexpr: &Sexpr) -> Value {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `eval` is never used
[INFO] [stdout]   --> src/eval.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 78 | impl Sexpr {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 79 |     pub fn eval(&self) -> Result<Value, Error> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `builtin` is never used
[INFO] [stdout]   --> src/eval.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn builtin() -> Env {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mk_env` is never used
[INFO] [stdout]    --> src/eval.rs:401:4
[INFO] [stdout]     |
[INFO] [stdout] 401 | fn mk_env<F: Fn(&str) -> Option<Value> + 'static>(f: F) -> Env {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `eval_number` is never used
[INFO] [stdout]    --> src/eval.rs:406:4
[INFO] [stdout]     |
[INFO] [stdout] 406 | fn eval_number(env: &Env, expr: &Sexpr) -> Result<i64, Error> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `eval` is never used
[INFO] [stdout]    --> src/eval.rs:414:4
[INFO] [stdout]     |
[INFO] [stdout] 414 | fn eval(env: &Env, expr: &Sexpr) -> Result<Value, Error> {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "9724a64e0aff05ef01a011a718c5649b44a5e0e025b522ca39d279ebc30655f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9724a64e0aff05ef01a011a718c5649b44a5e0e025b522ca39d279ebc30655f4", kill_on_drop: false }`
[INFO] [stdout] 9724a64e0aff05ef01a011a718c5649b44a5e0e025b522ca39d279ebc30655f4
[INFO] checking matklad/s against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2Fs" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matklad/s on toolchain f9935d29d867449445ee008640ccca1bf1ae0889
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/matklad/s
[INFO] finished tweaking git repo https://github.com/matklad/s
[INFO] tweaked toml for git repo https://github.com/matklad/s written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/matklad/s 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7934ce054fe34819a6c7fcf7e3f0bb159142a9417d25a9e5c789a48a1886ae94
[INFO] running `Command { std: "docker" "start" "-a" "7934ce054fe34819a6c7fcf7e3f0bb159142a9417d25a9e5c789a48a1886ae94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7934ce054fe34819a6c7fcf7e3f0bb159142a9417d25a9e5c789a48a1886ae94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7934ce054fe34819a6c7fcf7e3f0bb159142a9417d25a9e5c789a48a1886ae94", kill_on_drop: false }`
[INFO] [stdout] 7934ce054fe34819a6c7fcf7e3f0bb159142a9417d25a9e5c789a48a1886ae94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail_expr_drop_order" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 752ded4d338b91bd8deafaf5dc29244242f2044a0b2f4f1e4f6d01a014858a23
[INFO] running `Command { std: "docker" "start" "-a" "752ded4d338b91bd8deafaf5dc29244242f2044a0b2f4f1e4f6d01a014858a23", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking s v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sexpr.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     try!(start.fmt(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/sexpr.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         try!(x.fmt(f));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sexpr.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |             try!(sep.fmt(f));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:112:20
[INFO] [stdout]     |
[INFO] [stdout] 112 |                 if try!(eval_number(env, cond)) != 0 {
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:124:17
[INFO] [stdout]     |
[INFO] [stdout] 124 |                 try!(args.iter().map(|arg| {
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:144:42
[INFO] [stdout]     |
[INFO] [stdout] 144 |                 let values: Vec<Value> = try!(values.iter().map(|v| eval(val_env, v)).collect());
[INFO] [stdout]     |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:163:33
[INFO] [stdout]     |
[INFO] [stdout] 163 |                 let desugared = try!(f(args));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:292:40
[INFO] [stdout]     |
[INFO] [stdout] 292 |                 let args: Vec<Value> = try!(args.iter().map(|a| eval(env, a)).collect());
[INFO] [stdout]     |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:407:11
[INFO] [stdout]     |
[INFO] [stdout] 407 |     match try!(eval(env, expr)) {
[INFO] [stdout]     |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:422:23
[INFO] [stdout]     |
[INFO] [stdout] 422 |             let fun = try!(eval(env, &args[0]));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Closure(Rc<Fn(&Env, &[Sexpr]) -> Result<Value, Error>>)
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Closure(Rc<dyn Fn(&Env, &[Sexpr]) -> Result<Value, Error>>)
[INFO] [stdout]    |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:27:19
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub type Env = Rc<Fn(&str) -> Option<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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub type Env = Rc<dyn Fn(&str) -> Option<Value>>;
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sexpr.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     try!(start.fmt(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/sexpr.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         try!(x.fmt(f));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sexpr.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |             try!(sep.fmt(f));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:112:20
[INFO] [stdout]     |
[INFO] [stdout] 112 |                 if try!(eval_number(env, cond)) != 0 {
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:124:17
[INFO] [stdout]     |
[INFO] [stdout] 124 |                 try!(args.iter().map(|arg| {
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:144:42
[INFO] [stdout]     |
[INFO] [stdout] 144 |                 let values: Vec<Value> = try!(values.iter().map(|v| eval(val_env, v)).collect());
[INFO] [stdout]     |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:163:33
[INFO] [stdout]     |
[INFO] [stdout] 163 |                 let desugared = try!(f(args));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:292:40
[INFO] [stdout]     |
[INFO] [stdout] 292 |                 let args: Vec<Value> = try!(args.iter().map(|a| eval(env, a)).collect());
[INFO] [stdout]     |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:407:11
[INFO] [stdout]     |
[INFO] [stdout] 407 |     match try!(eval(env, expr)) {
[INFO] [stdout]     |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:422:23
[INFO] [stdout]     |
[INFO] [stdout] 422 |             let fun = try!(eval(env, &args[0]));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:733:64
[INFO] [stdout]     |
[INFO] [stdout] 733 |         let closure = Value::Closure(Rc::new(|env, args| match try!(eval(env, &args[0])) {
[INFO] [stdout]     |                                                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Closure(Rc<Fn(&Env, &[Sexpr]) -> Result<Value, Error>>)
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Closure(Rc<dyn Fn(&Env, &[Sexpr]) -> Result<Value, Error>>)
[INFO] [stdout]    |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:27:19
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub type Env = Rc<Fn(&str) -> Option<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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub type Env = Rc<dyn Fn(&str) -> Option<Value>>;
[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/sexpr.rs:57:15
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let s = s.trim_left();
[INFO] [stdout]    |               ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let s = s.trim_start();
[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/sexpr.rs:68:19
[INFO] [stdout]    |
[INFO] [stdout] 68 |             s = s.trim_left();
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 68 |             s = s.trim_start();
[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/sexpr.rs:57:15
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let s = s.trim_left();
[INFO] [stdout]    |               ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let s = s.trim_start();
[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/sexpr.rs:68:19
[INFO] [stdout]    |
[INFO] [stdout] 68 |             s = s.trim_left();
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 68 |             s = s.trim_start();
[INFO] [stdout]    |                   ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Number`, `Atom`, `List`, and `Closure` are never constructed
[INFO] [stdout]   --> src/eval.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum Value {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 11 |     Number(i64),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 12 |     Atom(String),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 13 |     List(Vec<Value>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     Closure(Rc<Fn(&Env, &[Sexpr]) -> Result<Value, Error>>)
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `closure`, `number`, `from_bool`, and `from_sexpr` are never used
[INFO] [stdout]   --> src/eval.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl Value {
[INFO] [stdout]    | ---------- associated functions in this implementation
[INFO] [stdout] 31 |     pub fn closure<F: Fn(&Env, &[Sexpr]) -> Result<Value, Error> + 'static>(f: F) -> Value {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn number(i: i64) -> Value {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn from_bool(b: bool) -> Value {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn from_sexpr(sexpr: &Sexpr) -> Value {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `eval` is never used
[INFO] [stdout]   --> src/eval.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 78 | impl Sexpr {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 79 |     pub fn eval(&self) -> Result<Value, Error> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `builtin` is never used
[INFO] [stdout]   --> src/eval.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn builtin() -> Env {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mk_env` is never used
[INFO] [stdout]    --> src/eval.rs:401:4
[INFO] [stdout]     |
[INFO] [stdout] 401 | fn mk_env<F: Fn(&str) -> Option<Value> + 'static>(f: F) -> Env {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `eval_number` is never used
[INFO] [stdout]    --> src/eval.rs:406:4
[INFO] [stdout]     |
[INFO] [stdout] 406 | fn eval_number(env: &Env, expr: &Sexpr) -> Result<i64, Error> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `eval` is never used
[INFO] [stdout]    --> src/eval.rs:414:4
[INFO] [stdout]     |
[INFO] [stdout] 414 | fn eval(env: &Env, expr: &Sexpr) -> Result<Value, Error> {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/eval.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn closure<F: Fn(&Env, &[Sexpr]) -> Result<Value, Error> + 'static>(f: F) -> Value {
[INFO] [stdout]    |                                                                             ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 32 |         Value::Closure(Rc::new(f))
[INFO] [stdout]    |                        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/eval.rs:397:12
[INFO] [stdout]     |
[INFO] [stdout] 95  |     let mut map = HashMap::new();
[INFO] [stdout]     |             --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 397 |     mk_env(move |x| map.get(x).cloned())
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/eval.rs:138:16
[INFO] [stdout]     |
[INFO] [stdout] 136 |               let env = env.clone();
[INFO] [stdout]     |                   --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 137 |
[INFO] [stdout] 138 |               Ok(Value::closure(move |val_env, values| {
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 139 | |                 let env = env.clone();
[INFO] [stdout] 140 | |                 let formals = formals.clone();
[INFO] [stdout] 141 | |                 if values.len() != formals.len() {
[INFO] [stdout] ...   |
[INFO] [stdout] 152 | |                 eval(&new_env, &body)
[INFO] [stdout] 153 | |             }))
[INFO] [stdout]     | |______________^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/eval.rs:265:13
[INFO] [stdout]     |
[INFO] [stdout] 265 |             eval(&bare_env, &code.parse::<Sexpr>().unwrap()).unwrap()
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/eval.rs:291:39
[INFO] [stdout]     |
[INFO] [stdout] 289 |               f: F
[INFO] [stdout]     |               ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 290 |           ) {
[INFO] [stdout] 291 |               insert_closure(map, name, move |env, args| {
[INFO] [stdout]     |  _______________________________________^
[INFO] [stdout] 292 | |                 let args: Vec<Value> = try!(args.iter().map(|a| eval(env, a)).collect());
[INFO] [stdout] 293 | |                 f(&args)
[INFO] [stdout] 294 | |             })
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/eval.rs:389:16
[INFO] [stdout]     |
[INFO] [stdout] 385 |             let hd = args[0].clone();
[INFO] [stdout]     |                 -- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 386 |             let ls = extract!(List, args[1], "Expected list in `cons`!");
[INFO] [stdout] 387 |             let mut result = vec![hd];
[INFO] [stdout]     |                     ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 388 |             result.extend(ls.iter().cloned());
[INFO] [stdout] 389 |             Ok(Value::List(result))
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `s` (bin "s") due to 7 previous errors; 21 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/eval.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn closure<F: Fn(&Env, &[Sexpr]) -> Result<Value, Error> + 'static>(f: F) -> Value {
[INFO] [stdout]    |                                                                             ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 32 |         Value::Closure(Rc::new(f))
[INFO] [stdout]    |                        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/eval.rs:397:12
[INFO] [stdout]     |
[INFO] [stdout] 95  |     let mut map = HashMap::new();
[INFO] [stdout]     |             --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 397 |     mk_env(move |x| map.get(x).cloned())
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/eval.rs:138:16
[INFO] [stdout]     |
[INFO] [stdout] 136 |               let env = env.clone();
[INFO] [stdout]     |                   --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 137 |
[INFO] [stdout] 138 |               Ok(Value::closure(move |val_env, values| {
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 139 | |                 let env = env.clone();
[INFO] [stdout] 140 | |                 let formals = formals.clone();
[INFO] [stdout] 141 | |                 if values.len() != formals.len() {
[INFO] [stdout] ...   |
[INFO] [stdout] 152 | |                 eval(&new_env, &body)
[INFO] [stdout] 153 | |             }))
[INFO] [stdout]     | |______________^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/eval.rs:265:13
[INFO] [stdout]     |
[INFO] [stdout] 265 |             eval(&bare_env, &code.parse::<Sexpr>().unwrap()).unwrap()
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/eval.rs:291:39
[INFO] [stdout]     |
[INFO] [stdout] 289 |               f: F
[INFO] [stdout]     |               ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 290 |           ) {
[INFO] [stdout] 291 |               insert_closure(map, name, move |env, args| {
[INFO] [stdout]     |  _______________________________________^
[INFO] [stdout] 292 | |                 let args: Vec<Value> = try!(args.iter().map(|a| eval(env, a)).collect());
[INFO] [stdout] 293 | |                 f(&args)
[INFO] [stdout] 294 | |             })
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/eval.rs:389:16
[INFO] [stdout]     |
[INFO] [stdout] 385 |             let hd = args[0].clone();
[INFO] [stdout]     |                 -- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 386 |             let ls = extract!(List, args[1], "Expected list in `cons`!");
[INFO] [stdout] 387 |             let mut result = vec![hd];
[INFO] [stdout]     |                     ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 388 |             result.extend(ls.iter().cloned());
[INFO] [stdout] 389 |             Ok(Value::List(result))
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/eval.rs:727:20
[INFO] [stdout]     |
[INFO] [stdout] 726 |         let env = mk_env(|x| if x == "foo" { Some(Value::number(92)) } else { None });
[INFO] [stdout]     |             --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 727 |         assert_eq!(eval(&env, &"foo".parse().unwrap()).unwrap().to_string(), "92")
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/eval.rs:738:20
[INFO] [stdout]     |
[INFO] [stdout] 733 |         let closure = Value::Closure(Rc::new(|env, args| match try!(eval(env, &args[0])) {
[INFO] [stdout]     |             ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 737 |         let env = mk_env(move |x| if x == "f" { Some(closure.clone()) } else { None });
[INFO] [stdout]     |             --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 738 |         assert_eq!(eval(&env, &"(f 91)".parse().unwrap()).unwrap().to_string(), "92")
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/eval.rs:752:20
[INFO] [stdout]     |
[INFO] [stdout] 744 |         let initial = builtin();
[INFO] [stdout]     |             ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 745 |         let env = mk_env(move |x| Some(Value::number(match x {
[INFO] [stdout]     |             --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 752 |         assert_eq!(eval(&env, &"(/ (+ x y) z)".parse().unwrap()).unwrap().to_string(), "1")
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/eval.rs:745:40
[INFO] [stdout]     |
[INFO] [stdout] 744 |           let initial = builtin();
[INFO] [stdout]     |               ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 745 |           let env = mk_env(move |x| Some(Value::number(match x {
[INFO] [stdout]     |  ________________________________________^
[INFO] [stdout] 746 | |             "x" => 1,
[INFO] [stdout] 747 | |             "y" => 2,
[INFO] [stdout] 748 | |             "z" => 3,
[INFO] [stdout] 749 | |             _ => return initial(x)
[INFO] [stdout] 750 | |         })));
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 previous errors; 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `s` (bin "s" test) due to 11 previous errors; 15 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "752ded4d338b91bd8deafaf5dc29244242f2044a0b2f4f1e4f6d01a014858a23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "752ded4d338b91bd8deafaf5dc29244242f2044a0b2f4f1e4f6d01a014858a23", kill_on_drop: false }`
[INFO] [stdout] 752ded4d338b91bd8deafaf5dc29244242f2044a0b2f4f1e4f6d01a014858a23