[INFO] cloning repository https://github.com/samdoiron/lithp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/samdoiron/lithp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamdoiron%2Flithp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamdoiron%2Flithp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe5cda657ec61fded841c8e01468a19c5a59a646
[INFO] testing samdoiron/lithp against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamdoiron%2Flithp" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/samdoiron/lithp on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/samdoiron/lithp
[INFO] finished tweaking git repo https://github.com/samdoiron/lithp
[INFO] tweaked toml for git repo https://github.com/samdoiron/lithp written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/samdoiron/lithp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 399aef643d8e816db62904f511fe9bbe2e9b267e8965fdd7835359b5fdd5654e
[INFO] running `Command { std: "docker" "start" "-a" "399aef643d8e816db62904f511fe9bbe2e9b267e8965fdd7835359b5fdd5654e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "399aef643d8e816db62904f511fe9bbe2e9b267e8965fdd7835359b5fdd5654e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "399aef643d8e816db62904f511fe9bbe2e9b267e8965fdd7835359b5fdd5654e", kill_on_drop: false }`
[INFO] [stdout] 399aef643d8e816db62904f511fe9bbe2e9b267e8965fdd7835359b5fdd5654e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f97de5c188a484e60af083876c0aff9b9e2d1dc59aea350735507407c425642
[INFO] running `Command { std: "docker" "start" "-a" "6f97de5c188a484e60af083876c0aff9b9e2d1dc59aea350735507407c425642", kill_on_drop: false }`
[INFO] [stderr]    Compiling lithp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:31:32
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 evaluated.push(try!(eval_atom(scope.clone(), atom)));
[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/eval.rs:64:40
[INFO] [stdout]    |
[INFO] [stdout] 64 |                         evaluated.push(try!(eval_atom(scope.clone(), atom)));
[INFO] [stdout]    |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:82:39
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let (binding_list, expressions) = try!(split_let_body(cdr));
[INFO] [stdout]    |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:84:20
[INFO] [stdout]    |
[INFO] [stdout] 84 |     let bindings = try!(extract_bindings(binding_list.clone()));
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:86:21
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let value = try!(eval_atom(scope.clone(), expression));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:96:39
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let (binding_list, expressions) = try!(split_let_body(cdr));
[INFO] [stdout]    |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:98:20
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let bindings = try!(extract_bindings(binding_list.clone()));
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:100:21
[INFO] [stdout]     |
[INFO] [stdout] 100 |         let value = try!(eval_atom(new_scope.clone(), expression));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:113:29
[INFO] [stdout]     |
[INFO] [stdout] 113 |             let evaluated = try!(eval_atom(scope.clone(), cdr[1].clone()));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:129:37
[INFO] [stdout]     |
[INFO] [stdout] 129 |                     let evaluated = try!(eval_atom(scope.clone(), cdr[1].clone()));
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:173:25
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let evaluated = try!(eval_atom(scope.clone(), arg.clone()));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:188:43
[INFO] [stdout]     |
[INFO] [stdout] 188 |                 let evaluated_condition = try!(eval_atom(scope.clone(),
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:204:25
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let evaluated = try!(eval_atom(scope.clone(), arg.clone()));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/eval.rs:295:30
[INFO] [stdout]     |
[INFO] [stdout] 295 | fn math(start: i64, reduce: &Fn(i64, &i64) -> i64, cdr: &[Atom])
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i64, &i64) -> i64`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/eval.rs:302:24
[INFO] [stdout]     |
[INFO] [stdout] 302 | fn math_first(reduce: &Fn(i64, &i64) -> i64, cdr: &[Atom]) 
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i64, &i64) -> i64`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/eval.rs:325:45
[INFO] [stdout]     |
[INFO] [stdout] 325 | fn binary_int_predicate(args: &[Atom], op: &Fn(i64, i64) -> bool) -> BasicResult<Atom> {
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i64, i64) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:359:23
[INFO] [stdout]     |
[INFO] [stdout] 359 |         bindings.push(try!(extract_binding(atom)));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/tokenizer.rs:16:21
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let token = try!(match_token(token));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |                 try!(fmt.write_str("( "));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:21:21
[INFO] [stdout]    |
[INFO] [stdout] 21 |                     try!(atom.fmt(fmt));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:22:21
[INFO] [stdout]    |
[INFO] [stdout] 22 |                     try!(fmt.write_char(' '));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 try!(fmt.write_str(")"));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:31:17
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 try!(fmt.write_str("' "));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:76:28
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 let atom = try!(self.parse_atom());
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:78:29
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let atoms = try!(self.parse_atoms());
[INFO] [stdout]    |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:91:28
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 let atom = try!(self.parse_atom());
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:102:20
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let body = try!(self.parse_list_body());
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "6f97de5c188a484e60af083876c0aff9b9e2d1dc59aea350735507407c425642", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f97de5c188a484e60af083876c0aff9b9e2d1dc59aea350735507407c425642", kill_on_drop: false }`
[INFO] [stdout] 6f97de5c188a484e60af083876c0aff9b9e2d1dc59aea350735507407c425642
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd54f572f6eb26809552023c14806880b85dcd35294dcad57cb8acfadaa202bb
[INFO] running `Command { std: "docker" "start" "-a" "cd54f572f6eb26809552023c14806880b85dcd35294dcad57cb8acfadaa202bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling lithp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:31:32
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 evaluated.push(try!(eval_atom(scope.clone(), atom)));
[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/eval.rs:64:40
[INFO] [stdout]    |
[INFO] [stdout] 64 |                         evaluated.push(try!(eval_atom(scope.clone(), atom)));
[INFO] [stdout]    |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:82:39
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let (binding_list, expressions) = try!(split_let_body(cdr));
[INFO] [stdout]    |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:84:20
[INFO] [stdout]    |
[INFO] [stdout] 84 |     let bindings = try!(extract_bindings(binding_list.clone()));
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:86:21
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let value = try!(eval_atom(scope.clone(), expression));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:96:39
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let (binding_list, expressions) = try!(split_let_body(cdr));
[INFO] [stdout]    |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:98:20
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let bindings = try!(extract_bindings(binding_list.clone()));
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:100:21
[INFO] [stdout]     |
[INFO] [stdout] 100 |         let value = try!(eval_atom(new_scope.clone(), expression));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:113:29
[INFO] [stdout]     |
[INFO] [stdout] 113 |             let evaluated = try!(eval_atom(scope.clone(), cdr[1].clone()));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:129:37
[INFO] [stdout]     |
[INFO] [stdout] 129 |                     let evaluated = try!(eval_atom(scope.clone(), cdr[1].clone()));
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:173:25
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let evaluated = try!(eval_atom(scope.clone(), arg.clone()));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:188:43
[INFO] [stdout]     |
[INFO] [stdout] 188 |                 let evaluated_condition = try!(eval_atom(scope.clone(),
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:204:25
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let evaluated = try!(eval_atom(scope.clone(), arg.clone()));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/eval.rs:295:30
[INFO] [stdout]     |
[INFO] [stdout] 295 | fn math(start: i64, reduce: &Fn(i64, &i64) -> i64, cdr: &[Atom])
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i64, &i64) -> i64`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/eval.rs:302:24
[INFO] [stdout]     |
[INFO] [stdout] 302 | fn math_first(reduce: &Fn(i64, &i64) -> i64, cdr: &[Atom]) 
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i64, &i64) -> i64`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/eval.rs:325:45
[INFO] [stdout]     |
[INFO] [stdout] 325 | fn binary_int_predicate(args: &[Atom], op: &Fn(i64, i64) -> bool) -> BasicResult<Atom> {
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i64, i64) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:359:23
[INFO] [stdout]     |
[INFO] [stdout] 359 |         bindings.push(try!(extract_binding(atom)));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/tokenizer.rs:16:21
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let token = try!(match_token(token));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |                 try!(fmt.write_str("( "));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:21:21
[INFO] [stdout]    |
[INFO] [stdout] 21 |                     try!(atom.fmt(fmt));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:22:21
[INFO] [stdout]    |
[INFO] [stdout] 22 |                     try!(fmt.write_char(' '));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 try!(fmt.write_str(")"));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:31:17
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 try!(fmt.write_str("' "));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:76:28
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 let atom = try!(self.parse_atom());
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:78:29
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let atoms = try!(self.parse_atoms());
[INFO] [stdout]    |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:91:28
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 let atom = try!(self.parse_atom());
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:102:20
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let body = try!(self.parse_list_body());
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "cd54f572f6eb26809552023c14806880b85dcd35294dcad57cb8acfadaa202bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd54f572f6eb26809552023c14806880b85dcd35294dcad57cb8acfadaa202bb", kill_on_drop: false }`
[INFO] [stdout] cd54f572f6eb26809552023c14806880b85dcd35294dcad57cb8acfadaa202bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 52af0328cbfcdbd02ff51fe6907d74e6b84327e6a03728678f6358eab919beee
[INFO] running `Command { std: "docker" "start" "-a" "52af0328cbfcdbd02ff51fe6907d74e6b84327e6a03728678f6358eab919beee", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/eval.rs:31:32
[INFO] [stderr]    |
[INFO] [stderr] 31 |                 evaluated.push(try!(eval_atom(scope.clone(), atom)));
[INFO] [stderr]    |                                ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/eval.rs:64:40
[INFO] [stderr]    |
[INFO] [stderr] 64 |                         evaluated.push(try!(eval_atom(scope.clone(), atom)));
[INFO] [stderr]    |                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/eval.rs:82:39
[INFO] [stderr]    |
[INFO] [stderr] 82 |     let (binding_list, expressions) = try!(split_let_body(cdr));
[INFO] [stderr]    |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/eval.rs:84:20
[INFO] [stderr]    |
[INFO] [stderr] 84 |     let bindings = try!(extract_bindings(binding_list.clone()));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/eval.rs:86:21
[INFO] [stderr]    |
[INFO] [stderr] 86 |         let value = try!(eval_atom(scope.clone(), expression));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/eval.rs:96:39
[INFO] [stderr]    |
[INFO] [stderr] 96 |     let (binding_list, expressions) = try!(split_let_body(cdr));
[INFO] [stderr]    |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/eval.rs:98:20
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let bindings = try!(extract_bindings(binding_list.clone()));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/eval.rs:100:21
[INFO] [stderr]     |
[INFO] [stderr] 100 |         let value = try!(eval_atom(new_scope.clone(), expression));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/eval.rs:113:29
[INFO] [stderr]     |
[INFO] [stderr] 113 |             let evaluated = try!(eval_atom(scope.clone(), cdr[1].clone()));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/eval.rs:129:37
[INFO] [stderr]     |
[INFO] [stderr] 129 |                     let evaluated = try!(eval_atom(scope.clone(), cdr[1].clone()));
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/eval.rs:173:25
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let evaluated = try!(eval_atom(scope.clone(), arg.clone()));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/eval.rs:188:43
[INFO] [stderr]     |
[INFO] [stderr] 188 |                 let evaluated_condition = try!(eval_atom(scope.clone(),
[INFO] [stderr]     |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/eval.rs:204:25
[INFO] [stderr]     |
[INFO] [stderr] 204 |         let evaluated = try!(eval_atom(scope.clone(), arg.clone()));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/eval.rs:295:30
[INFO] [stderr]     |
[INFO] [stderr] 295 | fn math(start: i64, reduce: &Fn(i64, &i64) -> i64, cdr: &[Atom])
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i64, &i64) -> i64`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/eval.rs:302:24
[INFO] [stderr]     |
[INFO] [stderr] 302 | fn math_first(reduce: &Fn(i64, &i64) -> i64, cdr: &[Atom]) 
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i64, &i64) -> i64`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/eval.rs:325:45
[INFO] [stderr]     |
[INFO] [stderr] 325 | fn binary_int_predicate(args: &[Atom], op: &Fn(i64, i64) -> bool) -> BasicResult<Atom> {
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i64, i64) -> bool`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/eval.rs:359:23
[INFO] [stderr]     |
[INFO] [stderr] 359 |         bindings.push(try!(extract_binding(atom)));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/tokenizer.rs:16:21
[INFO] [stderr]    |
[INFO] [stderr] 16 |         let token = try!(match_token(token));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/parser.rs:19:17
[INFO] [stderr]    |
[INFO] [stderr] 19 |                 try!(fmt.write_str("( "));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/parser.rs:21:21
[INFO] [stderr]    |
[INFO] [stderr] 21 |                     try!(atom.fmt(fmt));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/parser.rs:22:21
[INFO] [stderr]    |
[INFO] [stderr] 22 |                     try!(fmt.write_char(' '));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/parser.rs:24:17
[INFO] [stderr]    |
[INFO] [stderr] 24 |                 try!(fmt.write_str(")"));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/parser.rs:31:17
[INFO] [stderr]    |
[INFO] [stderr] 31 |                 try!(fmt.write_str("' "));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/parser.rs:76:28
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 let atom = try!(self.parse_atom());
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/parser.rs:78:29
[INFO] [stderr]    |
[INFO] [stderr] 78 |                 let atoms = try!(self.parse_atoms());
[INFO] [stderr]    |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/parser.rs:91:28
[INFO] [stderr]    |
[INFO] [stderr] 91 |                 let atom = try!(self.parse_atom());
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/parser.rs:102:20
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let body = try!(self.parse_list_body());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 27 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lithp-a6edd9c69faa6443)
[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" "52af0328cbfcdbd02ff51fe6907d74e6b84327e6a03728678f6358eab919beee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52af0328cbfcdbd02ff51fe6907d74e6b84327e6a03728678f6358eab919beee", kill_on_drop: false }`
[INFO] [stdout] 52af0328cbfcdbd02ff51fe6907d74e6b84327e6a03728678f6358eab919beee