[INFO] fetching crate clacks_tl_codegen 0.0.5...
[INFO] testing clacks_tl_codegen-0.0.5 against 1.60.0 for beta-1.61-1
[INFO] extracting crate clacks_tl_codegen 0.0.5 into /workspace/builds/worker-32/source
[INFO] validating manifest of crates.io crate clacks_tl_codegen 0.0.5 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate clacks_tl_codegen 0.0.5
[INFO] finished tweaking crates.io crate clacks_tl_codegen 0.0.5
[INFO] tweaked toml for crates.io crate clacks_tl_codegen 0.0.5 written to /workspace/builds/worker-32/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syntex_pos v0.59.1
[INFO] [stderr]   Downloaded syntex_errors v0.59.1
[INFO] [stderr]   Downloaded strings v0.1.1
[INFO] [stderr]   Downloaded extprim v1.7.1
[INFO] [stderr]   Downloaded syntex_syntax v0.59.1
[INFO] [stderr]   Downloaded rustfmt v0.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f158401abb3ad770b28b5654d2f957f60201ca14a79b148eab0a8ac4b1f6443c
[INFO] running `Command { std: "docker" "start" "-a" "f158401abb3ad770b28b5654d2f957f60201ca14a79b148eab0a8ac4b1f6443c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f158401abb3ad770b28b5654d2f957f60201ca14a79b148eab0a8ac4b1f6443c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f158401abb3ad770b28b5654d2f957f60201ca14a79b148eab0a8ac4b1f6443c", kill_on_drop: false }`
[INFO] [stdout] f158401abb3ad770b28b5654d2f957f60201ca14a79b148eab0a8ac4b1f6443c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 371d118a6d8a4068bf84e3d7aa10aaec4ac703f1849259d8d842e1ea7adcaaee
[INFO] running `Command { std: "docker" "start" "-a" "371d118a6d8a4068bf84e3d7aa10aaec4ac703f1849259d8d842e1ea7adcaaee", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling pom v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling derivative v1.0.4
[INFO] [stderr]    Compiling clacks_tl_codegen v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:153:9
[INFO] [stdout]     |
[INFO] [stdout] 153 |           ( sym(b'#').map(|_| Type::Int) |
[INFO] [stdout]     |           ^^
[INFO] [stdout] ...
[INFO] [stdout] 157 |             dotted_ident().map(Type::Named)
[INFO] [stdout]     |  __________________________________________^
[INFO] [stdout] 158 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 153 ~         sym(b'#').map(|_| Type::Int) |
[INFO] [stdout] 154 |           sym(b'!') * ident().map(Type::TypeParameter) |
[INFO] [stdout] 155 |           ty_flag() |
[INFO] [stdout] 156 |           ty_generic() |
[INFO] [stdout] 157 ~           dotted_ident().map(Type::Named)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:163:9
[INFO] [stdout]     |
[INFO] [stdout] 163 |         (space_generic.map(|(name, ty)| Type::Generic(name, Box::new(ty))) |
[INFO] [stdout]     |         ^
[INFO] [stdout] 164 |          ty())
[INFO] [stdout]     |              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 163 ~         space_generic.map(|(name, ty)| Type::Generic(name, Box::new(ty))) |
[INFO] [stdout] 164 ~          ty()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |         ( repeated_field() |
[INFO] [stdout]     |         ^^
[INFO] [stdout] 181 |           base_field() |
[INFO] [stdout] 182 |           ty().map(|ty| Field { name: None, ty: ty }))
[INFO] [stdout]     |                                                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 180 ~         repeated_field() |
[INFO] [stdout] 181 |           base_field() |
[INFO] [stdout] 182 ~           ty().map(|ty| Field { name: None, ty: ty })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 220 |           ( seq(b"---types---").map(|_| Delimiter::Types) |
[INFO] [stdout]     |           ^^
[INFO] [stdout] 221 |             seq(b"---functions---").map(|_| Delimiter::Functions)
[INFO] [stdout]     |  ________________________________________________________________^
[INFO] [stdout] 222 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 220 ~         seq(b"---types---").map(|_| Delimiter::Types) |
[INFO] [stdout] 221 ~           seq(b"---functions---").map(|_| Delimiter::Functions)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1548:59
[INFO] [stdout]      |
[INFO] [stdout] 1548 |     fn constructors_and_tl_ids<'this>(&'this self) -> Box<'this + Iterator<Item = (quote::Tokens, &'this Constructor<TypeIR, FieldIR>)>> {
[INFO] [stdout]      |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[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: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1548 -     fn constructors_and_tl_ids<'this>(&'this self) -> Box<'this + Iterator<Item = (quote::Tokens, &'this Constructor<TypeIR, FieldIR>)>> {
[INFO] [stdout] 1548 +     fn constructors_and_tl_ids<'this>(&'this self) -> Box<dyn 'this + Iterator<Item = (quote::Tokens, &'this Constructor<TypeIR, FieldIR>)>> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:440:35
[INFO] [stdout]     |
[INFO] [stdout] 440 |                 Item::Constructor(mut c) => {
[INFO] [stdout]     |                                   ----^
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:465:17
[INFO] [stdout]     |
[INFO] [stdout] 465 |             let mut cs = cs.resolve(&resolve_map);
[INFO] [stdout]     |                 ----^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:297:21
[INFO] [stdout]     |
[INFO] [stdout] 297 |                     &mut s[..1].make_ascii_uppercase();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 297 |                     let _ = &mut s[..1].make_ascii_uppercase();
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.45s
[INFO] running `Command { std: "docker" "inspect" "371d118a6d8a4068bf84e3d7aa10aaec4ac703f1849259d8d842e1ea7adcaaee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "371d118a6d8a4068bf84e3d7aa10aaec4ac703f1849259d8d842e1ea7adcaaee", kill_on_drop: false }`
[INFO] [stdout] 371d118a6d8a4068bf84e3d7aa10aaec4ac703f1849259d8d842e1ea7adcaaee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b50625830b8cb840923c866a1a5063804b14760efb9956998f52f8aec85a662
[INFO] running `Command { std: "docker" "start" "-a" "8b50625830b8cb840923c866a1a5063804b14760efb9956998f52f8aec85a662", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling clacks_tl_codegen v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:153:9
[INFO] [stdout]     |
[INFO] [stdout] 153 |           ( sym(b'#').map(|_| Type::Int) |
[INFO] [stdout]     |           ^^
[INFO] [stdout] ...
[INFO] [stdout] 157 |             dotted_ident().map(Type::Named)
[INFO] [stdout]     |  __________________________________________^
[INFO] [stdout] 158 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 153 ~         sym(b'#').map(|_| Type::Int) |
[INFO] [stdout] 154 |           sym(b'!') * ident().map(Type::TypeParameter) |
[INFO] [stdout] 155 |           ty_flag() |
[INFO] [stdout] 156 |           ty_generic() |
[INFO] [stdout] 157 ~           dotted_ident().map(Type::Named)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:163:9
[INFO] [stdout]     |
[INFO] [stdout] 163 |         (space_generic.map(|(name, ty)| Type::Generic(name, Box::new(ty))) |
[INFO] [stdout]     |         ^
[INFO] [stdout] 164 |          ty())
[INFO] [stdout]     |              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 163 ~         space_generic.map(|(name, ty)| Type::Generic(name, Box::new(ty))) |
[INFO] [stdout] 164 ~          ty()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |         ( repeated_field() |
[INFO] [stdout]     |         ^^
[INFO] [stdout] 181 |           base_field() |
[INFO] [stdout] 182 |           ty().map(|ty| Field { name: None, ty: ty }))
[INFO] [stdout]     |                                                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 180 ~         repeated_field() |
[INFO] [stdout] 181 |           base_field() |
[INFO] [stdout] 182 ~           ty().map(|ty| Field { name: None, ty: ty })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 220 |           ( seq(b"---types---").map(|_| Delimiter::Types) |
[INFO] [stdout]     |           ^^
[INFO] [stdout] 221 |             seq(b"---functions---").map(|_| Delimiter::Functions)
[INFO] [stdout]     |  ________________________________________________________________^
[INFO] [stdout] 222 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 220 ~         seq(b"---types---").map(|_| Delimiter::Types) |
[INFO] [stdout] 221 ~           seq(b"---functions---").map(|_| Delimiter::Functions)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1548:59
[INFO] [stdout]      |
[INFO] [stdout] 1548 |     fn constructors_and_tl_ids<'this>(&'this self) -> Box<'this + Iterator<Item = (quote::Tokens, &'this Constructor<TypeIR, FieldIR>)>> {
[INFO] [stdout]      |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[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: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1548 -     fn constructors_and_tl_ids<'this>(&'this self) -> Box<'this + Iterator<Item = (quote::Tokens, &'this Constructor<TypeIR, FieldIR>)>> {
[INFO] [stdout] 1548 +     fn constructors_and_tl_ids<'this>(&'this self) -> Box<dyn 'this + Iterator<Item = (quote::Tokens, &'this Constructor<TypeIR, FieldIR>)>> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:440:35
[INFO] [stdout]     |
[INFO] [stdout] 440 |                 Item::Constructor(mut c) => {
[INFO] [stdout]     |                                   ----^
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:465:17
[INFO] [stdout]     |
[INFO] [stdout] 465 |             let mut cs = cs.resolve(&resolve_map);
[INFO] [stdout]     |                 ----^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:297:21
[INFO] [stdout]     |
[INFO] [stdout] 297 |                     &mut s[..1].make_ascii_uppercase();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 297 |                     let _ = &mut s[..1].make_ascii_uppercase();
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:153:9
[INFO] [stdout]     |
[INFO] [stdout] 153 |           ( sym(b'#').map(|_| Type::Int) |
[INFO] [stdout]     |           ^^
[INFO] [stdout] ...
[INFO] [stdout] 157 |             dotted_ident().map(Type::Named)
[INFO] [stdout]     |  __________________________________________^
[INFO] [stdout] 158 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 153 ~         sym(b'#').map(|_| Type::Int) |
[INFO] [stdout] 154 |           sym(b'!') * ident().map(Type::TypeParameter) |
[INFO] [stdout] 155 |           ty_flag() |
[INFO] [stdout] 156 |           ty_generic() |
[INFO] [stdout] 157 ~           dotted_ident().map(Type::Named)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:163:9
[INFO] [stdout]     |
[INFO] [stdout] 163 |         (space_generic.map(|(name, ty)| Type::Generic(name, Box::new(ty))) |
[INFO] [stdout]     |         ^
[INFO] [stdout] 164 |          ty())
[INFO] [stdout]     |              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 163 ~         space_generic.map(|(name, ty)| Type::Generic(name, Box::new(ty))) |
[INFO] [stdout] 164 ~          ty()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |         ( repeated_field() |
[INFO] [stdout]     |         ^^
[INFO] [stdout] 181 |           base_field() |
[INFO] [stdout] 182 |           ty().map(|ty| Field { name: None, ty: ty }))
[INFO] [stdout]     |                                                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 180 ~         repeated_field() |
[INFO] [stdout] 181 |           base_field() |
[INFO] [stdout] 182 ~           ty().map(|ty| Field { name: None, ty: ty })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 220 |           ( seq(b"---types---").map(|_| Delimiter::Types) |
[INFO] [stdout]     |           ^^
[INFO] [stdout] 221 |             seq(b"---functions---").map(|_| Delimiter::Functions)
[INFO] [stdout]     |  ________________________________________________________________^
[INFO] [stdout] 222 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 220 ~         seq(b"---types---").map(|_| Delimiter::Types) |
[INFO] [stdout] 221 ~           seq(b"---functions---").map(|_| Delimiter::Functions)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1548:59
[INFO] [stdout]      |
[INFO] [stdout] 1548 |     fn constructors_and_tl_ids<'this>(&'this self) -> Box<'this + Iterator<Item = (quote::Tokens, &'this Constructor<TypeIR, FieldIR>)>> {
[INFO] [stdout]      |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[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: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1548 -     fn constructors_and_tl_ids<'this>(&'this self) -> Box<'this + Iterator<Item = (quote::Tokens, &'this Constructor<TypeIR, FieldIR>)>> {
[INFO] [stdout] 1548 +     fn constructors_and_tl_ids<'this>(&'this self) -> Box<dyn 'this + Iterator<Item = (quote::Tokens, &'this Constructor<TypeIR, FieldIR>)>> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:440:35
[INFO] [stdout]     |
[INFO] [stdout] 440 |                 Item::Constructor(mut c) => {
[INFO] [stdout]     |                                   ----^
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:465:17
[INFO] [stdout]     |
[INFO] [stdout] 465 |             let mut cs = cs.resolve(&resolve_map);
[INFO] [stdout]     |                 ----^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:297:21
[INFO] [stdout]     |
[INFO] [stdout] 297 |                     &mut s[..1].make_ascii_uppercase();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 297 |                     let _ = &mut s[..1].make_ascii_uppercase();
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.08s
[INFO] running `Command { std: "docker" "inspect" "8b50625830b8cb840923c866a1a5063804b14760efb9956998f52f8aec85a662", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b50625830b8cb840923c866a1a5063804b14760efb9956998f52f8aec85a662", kill_on_drop: false }`
[INFO] [stdout] 8b50625830b8cb840923c866a1a5063804b14760efb9956998f52f8aec85a662
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ffb6780b56c0be9621e3443c7e4acaa2a8ff8f6fd12dcaa587d2099077c4996f
[INFO] running `Command { std: "docker" "start" "-a" "ffb6780b56c0be9621e3443c7e4acaa2a8ff8f6fd12dcaa587d2099077c4996f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/lib.rs:153:9
[INFO] [stderr]     |
[INFO] [stderr] 153 |           ( sym(b'#').map(|_| Type::Int) |
[INFO] [stderr]     |           ^^
[INFO] [stderr] ...
[INFO] [stderr] 157 |             dotted_ident().map(Type::Named)
[INFO] [stderr]     |  __________________________________________^
[INFO] [stderr] 158 | |         )
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 153 ~         sym(b'#').map(|_| Type::Int) |
[INFO] [stderr] 154 |           sym(b'!') * ident().map(Type::TypeParameter) |
[INFO] [stderr] 155 |           ty_flag() |
[INFO] [stderr] 156 |           ty_generic() |
[INFO] [stderr] 157 ~           dotted_ident().map(Type::Named)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/lib.rs:163:9
[INFO] [stderr]     |
[INFO] [stderr] 163 |         (space_generic.map(|(name, ty)| Type::Generic(name, Box::new(ty))) |
[INFO] [stderr]     |         ^
[INFO] [stderr] 164 |          ty())
[INFO] [stderr]     |              ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 163 ~         space_generic.map(|(name, ty)| Type::Generic(name, Box::new(ty))) |
[INFO] [stderr] 164 ~          ty()
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/lib.rs:180:9
[INFO] [stderr]     |
[INFO] [stderr] 180 |         ( repeated_field() |
[INFO] [stderr]     |         ^^
[INFO] [stderr] 181 |           base_field() |
[INFO] [stderr] 182 |           ty().map(|ty| Field { name: None, ty: ty }))
[INFO] [stderr]     |                                                      ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 180 ~         repeated_field() |
[INFO] [stderr] 181 |           base_field() |
[INFO] [stderr] 182 ~           ty().map(|ty| Field { name: None, ty: ty })
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/lib.rs:220:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |           ( seq(b"---types---").map(|_| Delimiter::Types) |
[INFO] [stderr]     |           ^^
[INFO] [stderr] 221 |             seq(b"---functions---").map(|_| Delimiter::Functions)
[INFO] [stderr]     |  ________________________________________________________________^
[INFO] [stderr] 222 | |         )
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 220 ~         seq(b"---types---").map(|_| Delimiter::Types) |
[INFO] [stderr] 221 ~           seq(b"---functions---").map(|_| Delimiter::Functions)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1548:59
[INFO] [stderr]      |
[INFO] [stderr] 1548 |     fn constructors_and_tl_ids<'this>(&'this self) -> Box<'this + Iterator<Item = (quote::Tokens, &'this Constructor<TypeIR, FieldIR>)>> {
[INFO] [stderr]      |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]      |
[INFO] [stderr] 1548 -     fn constructors_and_tl_ids<'this>(&'this self) -> Box<'this + Iterator<Item = (quote::Tokens, &'this Constructor<TypeIR, FieldIR>)>> {
[INFO] [stderr] 1548 +     fn constructors_and_tl_ids<'this>(&'this self) -> Box<dyn 'this + Iterator<Item = (quote::Tokens, &'this Constructor<TypeIR, FieldIR>)>> {
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:440:35
[INFO] [stderr]     |
[INFO] [stderr] 440 |                 Item::Constructor(mut c) => {
[INFO] [stderr]     |                                   ----^
[INFO] [stderr]     |                                   |
[INFO] [stderr]     |                                   help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:465:17
[INFO] [stderr]     |
[INFO] [stderr] 465 |             let mut cs = cs.resolve(&resolve_map);
[INFO] [stderr]     |                 ----^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:297:21
[INFO] [stderr]     |
[INFO] [stderr] 297 |                     &mut s[..1].make_ascii_uppercase();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 297 |                     let _ = &mut s[..1].make_ascii_uppercase();
[INFO] [stderr]     |                     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `clacks_tl_codegen` (lib) generated 8 warnings
[INFO] [stderr] warning: `clacks_tl_codegen` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.54s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/clacks_tl_codegen-1967cf699bb5d1f0)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/codegen_test-26849ec7d3ff335f)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests clacks_tl_codegen
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:153:9
[INFO] [stderr]     |
[INFO] [stderr] 153 |           ( sym(b'#').map(|_| Type::Int) |
[INFO] [stderr]     |           ^^
[INFO] [stderr] ...
[INFO] [stderr] 157 |             dotted_ident().map(Type::Named)
[INFO] [stderr]     |  __________________________________________^
[INFO] [stderr] 158 | |         )
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 153 ~         sym(b'#').map(|_| Type::Int) |
[INFO] [stderr] 154 |           sym(b'!') * ident().map(Type::TypeParameter) |
[INFO] [stderr] 155 |           ty_flag() |
[INFO] [stderr] 156 |           ty_generic() |
[INFO] [stderr] 157 ~           dotted_ident().map(Type::Named)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:163:9
[INFO] [stderr]     |
[INFO] [stderr] 163 |         (space_generic.map(|(name, ty)| Type::Generic(name, Box::new(ty))) |
[INFO] [stderr]     |         ^
[INFO] [stderr] 164 |          ty())
[INFO] [stderr]     |              ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 163 ~         space_generic.map(|(name, ty)| Type::Generic(name, Box::new(ty))) |
[INFO] [stderr] 164 ~          ty()
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:180:9
[INFO] [stderr]     |
[INFO] [stderr] 180 |         ( repeated_field() |
[INFO] [stderr]     |         ^^
[INFO] [stderr] 181 |           base_field() |
[INFO] [stderr] 182 |           ty().map(|ty| Field { name: None, ty: ty }))
[INFO] [stderr]     |                                                      ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 180 ~         repeated_field() |
[INFO] [stderr] 181 |           base_field() |
[INFO] [stderr] 182 ~           ty().map(|ty| Field { name: None, ty: ty })
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:220:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |           ( seq(b"---types---").map(|_| Delimiter::Types) |
[INFO] [stderr]     |           ^^
[INFO] [stderr] 221 |             seq(b"---functions---").map(|_| Delimiter::Functions)
[INFO] [stderr]     |  ________________________________________________________________^
[INFO] [stderr] 222 | |         )
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 220 ~         seq(b"---types---").map(|_| Delimiter::Types) |
[INFO] [stderr] 221 ~           seq(b"---functions---").map(|_| Delimiter::Functions)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ffb6780b56c0be9621e3443c7e4acaa2a8ff8f6fd12dcaa587d2099077c4996f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffb6780b56c0be9621e3443c7e4acaa2a8ff8f6fd12dcaa587d2099077c4996f", kill_on_drop: false }`
[INFO] [stdout] ffb6780b56c0be9621e3443c7e4acaa2a8ff8f6fd12dcaa587d2099077c4996f