[INFO] cloning repository https://github.com/TheIronBorn/EulerLisp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TheIronBorn/EulerLisp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheIronBorn%2FEulerLisp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheIronBorn%2FEulerLisp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ea3e8d461c52ddc16602939a2e81e4696965002
[INFO] checking TheIronBorn/EulerLisp against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheIronBorn%2FEulerLisp" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TheIronBorn/EulerLisp on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TheIronBorn/EulerLisp
[INFO] finished tweaking git repo https://github.com/TheIronBorn/EulerLisp
[INFO] tweaked toml for git repo https://github.com/TheIronBorn/EulerLisp written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/TheIronBorn/EulerLisp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee010a322c575e873fc9e7644f7662414d18757042df8b6be6bc0d43196af24f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ee010a322c575e873fc9e7644f7662414d18757042df8b6be6bc0d43196af24f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee010a322c575e873fc9e7644f7662414d18757042df8b6be6bc0d43196af24f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee010a322c575e873fc9e7644f7662414d18757042df8b6be6bc0d43196af24f", kill_on_drop: false }`
[INFO] [stdout] ee010a322c575e873fc9e7644f7662414d18757042df8b6be6bc0d43196af24f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93dba3f834460e0b31d3e05a28868d9942b2c3f2d86d8fe8d8ca5189816fb2c1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "93dba3f834460e0b31d3e05a28868d9942b2c3f2d86d8fe8d8ca5189816fb2c1", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.28
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking encode_unicode v0.1.3
[INFO] [stderr]     Checking bit-vec v0.4.4
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking rand v0.3.18
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking nom v3.2.0
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]     Checking lisp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub output: Rc<RefCell<Write>>,
[INFO] [stdout]    |                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:42:35
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn new(output: Rc<RefCell<Write>>, stdlib: bool) -> Self {
[INFO] [stdout]    |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `::LispErr`
[INFO] [stdout]  --> src/builtin/hashmap.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use ::LispErr;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `::LispErr::*`
[INFO] [stdout]  --> src/builtin/hashmap.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use ::LispErr::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/builtin/math.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 |     (c as isize)
[INFO] [stdout]     |     ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `::LispErr::*`
[INFO] [stdout]  --> src/builtin/data_structures.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use ::LispErr::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/bignum.rs:112:17
[INFO] [stdout]     |
[INFO] [stdout] 112 |                 (*self.data.get(0).unwrap_or(&0) as isize)
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:168:21
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 'a' ... 'z' => true,
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:169:21
[INFO] [stdout]     |
[INFO] [stdout] 169 |                 '0' ... '9' => true,
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:183:21
[INFO] [stdout]     |
[INFO] [stdout] 183 |                 '0' ... '9' => true,
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:436:28
[INFO] [stdout]     |
[INFO] [stdout] 436 |                 first @ 'a'...'z' | first @ '!' | first @ '$'
[INFO] [stdout]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:443:28
[INFO] [stdout]     |
[INFO] [stdout] 443 |                 first @ '0'...'9' => {
[INFO] [stdout]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/stream.rs:13:21
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl fmt::Debug for LispIterator {
[INFO] [stdout]    |                     ^^^^^^^^^^^^ help: use `dyn`: `dyn LispIterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/stream.rs:19:20
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl PartialEq for LispIterator {
[INFO] [stdout]    |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn LispIterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/stream.rs:20:27
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn eq(&self, _other: &LispIterator) -> bool {
[INFO] [stdout]    |                           ^^^^^^^^^^^^ help: use `dyn`: `dyn LispIterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:158:30
[INFO] [stdout]     |
[INFO] [stdout] 158 | pub type Stream = Rc<RefCell<LispIterator>>;
[INFO] [stdout]     |                              ^^^^^^^^^^^^ help: use `dyn`: `dyn LispIterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:553:21
[INFO] [stdout]     |
[INFO] [stdout] 553 |     fn from(other: &ToDatum) -> Datum {
[INFO] [stdout]     |                     ^^^^^^^ help: use `dyn`: `dyn ToDatum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub output: Rc<RefCell<Write>>,
[INFO] [stdout]    |                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:42:35
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn new(output: Rc<RefCell<Write>>, stdlib: bool) -> Self {
[INFO] [stdout]    |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `::LispErr`
[INFO] [stdout]  --> src/builtin/hashmap.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use ::LispErr;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `::LispErr::*`
[INFO] [stdout]  --> src/builtin/hashmap.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use ::LispErr::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/builtin/math.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 |     (c as isize)
[INFO] [stdout]     |     ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `::LispErr::*`
[INFO] [stdout]  --> src/builtin/data_structures.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use ::LispErr::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/bignum.rs:112:17
[INFO] [stdout]     |
[INFO] [stdout] 112 |                 (*self.data.get(0).unwrap_or(&0) as isize)
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:168:21
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 'a' ... 'z' => true,
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:169:21
[INFO] [stdout]     |
[INFO] [stdout] 169 |                 '0' ... '9' => true,
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:183:21
[INFO] [stdout]     |
[INFO] [stdout] 183 |                 '0' ... '9' => true,
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:436:28
[INFO] [stdout]     |
[INFO] [stdout] 436 |                 first @ 'a'...'z' | first @ '!' | first @ '$'
[INFO] [stdout]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:443:28
[INFO] [stdout]     |
[INFO] [stdout] 443 |                 first @ '0'...'9' => {
[INFO] [stdout]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/stream.rs:13:21
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl fmt::Debug for LispIterator {
[INFO] [stdout]    |                     ^^^^^^^^^^^^ help: use `dyn`: `dyn LispIterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/stream.rs:19:20
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl PartialEq for LispIterator {
[INFO] [stdout]    |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn LispIterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/stream.rs:20:27
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn eq(&self, _other: &LispIterator) -> bool {
[INFO] [stdout]    |                           ^^^^^^^^^^^^ help: use `dyn`: `dyn LispIterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:158:30
[INFO] [stdout]     |
[INFO] [stdout] 158 | pub type Stream = Rc<RefCell<LispIterator>>;
[INFO] [stdout]     |                              ^^^^^^^^^^^^ help: use `dyn`: `dyn LispIterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:553:21
[INFO] [stdout]     |
[INFO] [stdout] 553 |     fn from(other: &ToDatum) -> Datum {
[INFO] [stdout]     |                     ^^^^^^^ help: use `dyn`: `dyn ToDatum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> src/doc.rs:18:30
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let processed = line.trim_left_matches(';');
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/doc.rs:54:61
[INFO] [stdout]    |
[INFO] [stdout] 54 |         Err(why) => panic!("couldn't spawn pandoc: {}", why.description()),
[INFO] [stdout]    |                                                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/doc.rs:60:32
[INFO] [stdout]    |
[INFO] [stdout] 60 | ...                   why.description()),
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> src/doc.rs:18:30
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let processed = line.trim_left_matches(';');
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/doc.rs:54:61
[INFO] [stdout]    |
[INFO] [stdout] 54 |         Err(why) => panic!("couldn't spawn pandoc: {}", why.description()),
[INFO] [stdout]    |                                                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/doc.rs:60:32
[INFO] [stdout]    |
[INFO] [stdout] 60 | ...                   why.description()),
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/symbol_table.rs:38:26
[INFO] [stdout]    |
[INFO] [stdout] 38 |     assert_eq!(st.insert("foo"), 0);
[INFO] [stdout]    |                          ^^^^^ expected struct `String`, found `str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&String`
[INFO] [stdout]               found reference `&'static str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/symbol_table.rs:39:26
[INFO] [stdout]    |
[INFO] [stdout] 39 |     assert_eq!(st.insert("bar"), 1);
[INFO] [stdout]    |                          ^^^^^ expected struct `String`, found `str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&String`
[INFO] [stdout]               found reference `&'static str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/symbol_table.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 |     assert_eq!(st.insert("foo"), 0);
[INFO] [stdout]    |                          ^^^^^ expected struct `String`, found `str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&String`
[INFO] [stdout]               found reference `&'static str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lisp`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: the feature `i128_type` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(i128_type)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `io`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io)]
[INFO] [stdout]   |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/doc.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     writeln!(output, "# {}", path);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "93dba3f834460e0b31d3e05a28868d9942b2c3f2d86d8fe8d8ca5189816fb2c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93dba3f834460e0b31d3e05a28868d9942b2c3f2d86d8fe8d8ca5189816fb2c1", kill_on_drop: false }`
[INFO] [stdout] 93dba3f834460e0b31d3e05a28868d9942b2c3f2d86d8fe8d8ca5189816fb2c1