[INFO] fetching crate clacks_tl_codegen 0.0.5... [INFO] checking clacks_tl_codegen-0.0.5 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate clacks_tl_codegen 0.0.5 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate clacks_tl_codegen 0.0.5 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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-6-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 69 packages to latest compatible versions [INFO] [stderr] Adding aho-corasick v0.6.10 (available: v1.1.3) [INFO] [stderr] Adding autocfg v0.1.8 (available: v1.4.0) [INFO] [stderr] Adding bitflags v0.9.1 (available: v2.6.0) [INFO] [stderr] Adding bitflags v1.3.2 (available: v2.6.0) [INFO] [stderr] Adding cloudabi v0.0.3 (available: v0.1.0) [INFO] [stderr] Adding derivative v1.0.4 (available: v2.2.0) [INFO] [stderr] Adding env_logger v0.4.3 (available: v0.11.5) [INFO] [stderr] Adding log v0.3.9 (available: v0.4.22) [INFO] [stderr] Adding pom v1.1.0 (available: v3.4.0) [INFO] [stderr] Adding proc-macro2 v0.3.8 (available: v1.0.86) [INFO] [stderr] Adding proc-macro2 v0.4.30 (available: v1.0.86) [INFO] [stderr] Adding quote v0.5.2 (available: v1.0.37) [INFO] [stderr] Adding quote v0.6.13 (available: v1.0.37) [INFO] [stderr] Adding rand v0.6.5 (available: v0.8.5) [INFO] [stderr] Adding rand_chacha v0.1.1 (available: v0.3.1) [INFO] [stderr] Adding rand_core v0.3.1 (available: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (available: v0.6.4) [INFO] [stderr] Adding rand_hc v0.1.0 (available: v0.3.2) [INFO] [stderr] Adding rand_isaac v0.1.1 (available: v0.3.0) [INFO] [stderr] Adding rand_jitter v0.1.4 (available: v0.4.0) [INFO] [stderr] Adding rand_os v0.1.3 (available: v0.2.2) [INFO] [stderr] Adding rand_pcg v0.1.2 (available: v0.3.1) [INFO] [stderr] Adding rand_xorshift v0.1.1 (available: v0.3.0) [INFO] [stderr] Adding rdrand v0.4.0 (available: v0.8.3) [INFO] [stderr] Adding regex v0.2.11 (available: v1.10.6) [INFO] [stderr] Adding regex-syntax v0.5.6 (available: v0.8.4) [INFO] [stderr] Adding rustc_version v0.2.3 (available: v0.4.1) [INFO] [stderr] Adding semver v0.9.0 (available: v1.0.23) [INFO] [stderr] Adding semver-parser v0.7.0 (available: v0.10.2) [INFO] [stderr] Adding syn v0.13.11 (available: v2.0.79) [INFO] [stderr] Adding syn v0.15.44 (available: v2.0.79) [INFO] [stderr] Adding term v0.4.6 (available: v1.0.0) [INFO] [stderr] Adding thread_local v0.3.6 (available: v1.1.8) [INFO] [stderr] Adding toml v0.4.10 (available: v0.8.19) [INFO] [stderr] Adding ucd-util v0.1.10 (available: v0.2.1) [INFO] [stderr] Adding unicode-width v0.1.14 (available: v0.2.0) [INFO] [stderr] Adding unicode-xid v0.1.0 (available: v0.2.6) [INFO] [stderr] Adding winapi v0.2.8 (available: v0.3.9) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 88e1704579fd0d83e22af80f56c1bd9ebcd5a18d11dd80e22e8faee365bb4d5f [INFO] running `Command { std: "docker" "start" "-a" "88e1704579fd0d83e22af80f56c1bd9ebcd5a18d11dd80e22e8faee365bb4d5f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "88e1704579fd0d83e22af80f56c1bd9ebcd5a18d11dd80e22e8faee365bb4d5f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "88e1704579fd0d83e22af80f56c1bd9ebcd5a18d11dd80e22e8faee365bb4d5f", kill_on_drop: false }` [INFO] [stdout] 88e1704579fd0d83e22af80f56c1bd9ebcd5a18d11dd80e22e8faee365bb4d5f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail_expr_drop_order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cbb95b373245ff079a530451245796e4c8ee9602205886a63f49f5fdc0d8cc86 [INFO] running `Command { std: "docker" "start" "-a" "cbb95b373245ff079a530451245796e4c8ee9602205886a63f49f5fdc0d8cc86", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking pom v1.1.0 [INFO] [stderr] Checking proc-macro2 v0.3.8 [INFO] [stderr] Checking quote v0.5.2 [INFO] [stderr] Checking syn v0.13.11 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling derivative v1.0.4 [INFO] [stderr] Checking 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: 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)>> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 1548 | fn constructors_and_tl_ids<'this>(&'this self) -> Box)>> { [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)>> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 1548 | fn constructors_and_tl_ids<'this>(&'this self) -> Box)>> { [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: 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: 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` profile [unoptimized + debuginfo] target(s) in 2.94s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.13.11 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "cbb95b373245ff079a530451245796e4c8ee9602205886a63f49f5fdc0d8cc86", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cbb95b373245ff079a530451245796e4c8ee9602205886a63f49f5fdc0d8cc86", kill_on_drop: false }` [INFO] [stdout] cbb95b373245ff079a530451245796e4c8ee9602205886a63f49f5fdc0d8cc86