[INFO] fetching crate forward-traits 3.1.0... [INFO] checking forward-traits-3.1.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] extracting crate forward-traits 3.1.0 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate forward-traits 3.1.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate forward-traits 3.1.0 [INFO] finished tweaking crates.io crate forward-traits 3.1.0 [INFO] tweaked toml for crates.io crate forward-traits 3.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate crates.io crate forward-traits 3.1.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 19391a4161c898fdb9b7bc3957474f9968cf7db31389043034a0d72b879f314a [INFO] running `Command { std: "docker" "start" "-a" "19391a4161c898fdb9b7bc3957474f9968cf7db31389043034a0d72b879f314a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "19391a4161c898fdb9b7bc3957474f9968cf7db31389043034a0d72b879f314a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "19391a4161c898fdb9b7bc3957474f9968cf7db31389043034a0d72b879f314a", kill_on_drop: false }` [INFO] [stdout] 19391a4161c898fdb9b7bc3957474f9968cf7db31389043034a0d72b879f314a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2a36718c9095ffcdf0fc400a5ef53b0fbd4d14a1830d82a95484118a9c20596d [INFO] running `Command { std: "docker" "start" "-a" "2a36718c9095ffcdf0fc400a5ef53b0fbd4d14a1830d82a95484118a9c20596d", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.81 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking quote v1.0.36 [INFO] [stderr] Checking syn v2.0.60 [INFO] [stderr] Compiling syn_derive v0.1.8 [INFO] [stderr] Compiling forward-traits v3.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `box_token`, `l_angle_token`, and `r_angle_token` are never read [INFO] [stdout] --> src/syn/transformable_types.rs:28:6 [INFO] [stdout] | [INFO] [stdout] 26 | pub struct BoxType [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 27 | { [INFO] [stdout] 28 | pub box_token: kw::Box, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 29 | pub l_angle_token: Token! [<], [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 30 | pub boxed_type: Type, [INFO] [stdout] 31 | pub r_angle_token: Token! [>] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `option_token`, `l_angle_token`, and `r_angle_token` are never read [INFO] [stdout] --> src/syn/transformable_types.rs:50:6 [INFO] [stdout] | [INFO] [stdout] 48 | pub struct OptionType [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] 49 | { [INFO] [stdout] 50 | pub option_token: kw::Option, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 51 | pub l_angle_token: Token! [<], [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 52 | pub option_type: Type, [INFO] [stdout] 53 | pub r_angle_token: Token! [>] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `result_token`, `l_angle_token`, `comma_token`, `error_type`, and `r_angle_token` are never read [INFO] [stdout] --> src/syn/transformable_types.rs:72:6 [INFO] [stdout] | [INFO] [stdout] 70 | pub struct ResultType [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] 71 | { [INFO] [stdout] 72 | pub result_token: kw::Result, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 73 | pub l_angle_token: Token! [<], [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 74 | pub result_type: Type, [INFO] [stdout] 75 | pub comma_token: Token! [,], [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 76 | pub error_type: Type, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 77 | pub r_angle_token: Token! [>] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `paren` is never read [INFO] [stdout] --> src/syn/transformable_types.rs:97:6 [INFO] [stdout] | [INFO] [stdout] 94 | pub struct TupleType [INFO] [stdout] | --------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 97 | pub paren: Paren, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `bracket`, `semi_token`, and `count` are never read [INFO] [stdout] --> src/syn/transformable_types.rs:116:6 [INFO] [stdout] | [INFO] [stdout] 113 | pub struct ArrayType [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 116 | pub bracket: Bracket, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 122 | pub semi_token: Token! [;], [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 125 | pub count: Expr [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `box_token`, `l_angle_token`, and `r_angle_token` are never read [INFO] [stdout] --> src/syn/transformable_types.rs:28:6 [INFO] [stdout] | [INFO] [stdout] 26 | pub struct BoxType [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 27 | { [INFO] [stdout] 28 | pub box_token: kw::Box, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 29 | pub l_angle_token: Token! [<], [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 30 | pub boxed_type: Type, [INFO] [stdout] 31 | pub r_angle_token: Token! [>] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `option_token`, `l_angle_token`, and `r_angle_token` are never read [INFO] [stdout] --> src/syn/transformable_types.rs:50:6 [INFO] [stdout] | [INFO] [stdout] 48 | pub struct OptionType [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] 49 | { [INFO] [stdout] 50 | pub option_token: kw::Option, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 51 | pub l_angle_token: Token! [<], [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 52 | pub option_type: Type, [INFO] [stdout] 53 | pub r_angle_token: Token! [>] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `result_token`, `l_angle_token`, `comma_token`, `error_type`, and `r_angle_token` are never read [INFO] [stdout] --> src/syn/transformable_types.rs:72:6 [INFO] [stdout] | [INFO] [stdout] 70 | pub struct ResultType [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] 71 | { [INFO] [stdout] 72 | pub result_token: kw::Result, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 73 | pub l_angle_token: Token! [<], [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 74 | pub result_type: Type, [INFO] [stdout] 75 | pub comma_token: Token! [,], [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 76 | pub error_type: Type, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 77 | pub r_angle_token: Token! [>] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `paren` is never read [INFO] [stdout] --> src/syn/transformable_types.rs:97:6 [INFO] [stdout] | [INFO] [stdout] 94 | pub struct TupleType [INFO] [stdout] | --------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 97 | pub paren: Paren, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `bracket`, `semi_token`, and `count` are never read [INFO] [stdout] --> src/syn/transformable_types.rs:116:6 [INFO] [stdout] | [INFO] [stdout] 113 | pub struct ArrayType [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 116 | pub bracket: Bracket, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 122 | pub semi_token: Token! [;], [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 125 | pub count: Expr [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `box_token`, `l_angle_token`, and `r_angle_token` are never read [INFO] [stdout] --> src/syn/transformable_types.rs:28:6 [INFO] [stdout] | [INFO] [stdout] 26 | pub struct BoxType [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 27 | { [INFO] [stdout] 28 | pub box_token: kw::Box, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 29 | pub l_angle_token: Token! [<], [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 30 | pub boxed_type: Type, [INFO] [stdout] 31 | pub r_angle_token: Token! [>] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `option_token`, `l_angle_token`, and `r_angle_token` are never read [INFO] [stdout] --> src/syn/transformable_types.rs:50:6 [INFO] [stdout] | [INFO] [stdout] 48 | pub struct OptionType [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] 49 | { [INFO] [stdout] 50 | pub option_token: kw::Option, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 51 | pub l_angle_token: Token! [<], [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 52 | pub option_type: Type, [INFO] [stdout] 53 | pub r_angle_token: Token! [>] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `result_token`, `l_angle_token`, `comma_token`, `error_type`, and `r_angle_token` are never read [INFO] [stdout] --> src/syn/transformable_types.rs:72:6 [INFO] [stdout] | [INFO] [stdout] 70 | pub struct ResultType [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] 71 | { [INFO] [stdout] 72 | pub result_token: kw::Result, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 73 | pub l_angle_token: Token! [<], [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 74 | pub result_type: Type, [INFO] [stdout] 75 | pub comma_token: Token! [,], [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 76 | pub error_type: Type, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 77 | pub r_angle_token: Token! [>] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `paren` is never read [INFO] [stdout] --> src/syn/transformable_types.rs:97:6 [INFO] [stdout] | [INFO] [stdout] 94 | pub struct TupleType [INFO] [stdout] | --------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 97 | pub paren: Paren, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `bracket`, `semi_token`, and `count` are never read [INFO] [stdout] --> src/syn/transformable_types.rs:116:6 [INFO] [stdout] | [INFO] [stdout] 113 | pub struct ArrayType [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 116 | pub bracket: Bracket, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 122 | pub semi_token: Token! [;], [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 125 | pub count: Expr [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Foo` is never used [INFO] [stdout] --> examples/maybe_sized.rs:4:7 [INFO] [stdout] | [INFO] [stdout] 4 | trait Foo [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `A` is never constructed [INFO] [stdout] --> examples/maybe_sized.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | struct A (); [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `B` is never constructed [INFO] [stdout] --> examples/maybe_sized.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | struct B (A); [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated functions are never used [INFO] [stdout] --> examples/all_delegations.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 6 | trait Foo: Sized [INFO] [stdout] | --- associated functions in this trait [INFO] [stdout] ... [INFO] [stdout] 12 | fn foo5 (x: Option ); [INFO] [stdout] | ^^^^ [INFO] [stdout] 13 | fn foo6 (x: Result ); [INFO] [stdout] | ^^^^ [INFO] [stdout] 14 | fn foo7 (x: (Self, Self)); [INFO] [stdout] | ^^^^ [INFO] [stdout] 15 | fn foo8 (x: [Self; 2]); [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | fn foo11 () -> Option ; [INFO] [stdout] | ^^^^^ [INFO] [stdout] 20 | fn foo12 () -> Result ; [INFO] [stdout] | ^^^^^ [INFO] [stdout] 21 | fn foo13 () -> (Self, Self); [INFO] [stdout] | ^^^^^ [INFO] [stdout] 22 | fn foo14 () -> [Self; 2]; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Bar` is never used [INFO] [stdout] --> examples/all_delegations.rs:26:7 [INFO] [stdout] | [INFO] [stdout] 26 | trait Bar: Sized [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `WeirdAsRef` is never used [INFO] [stdout] --> examples/additional_transformations.rs:28:7 [INFO] [stdout] | [INFO] [stdout] 28 | trait WeirdAsRef [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `foo` is never used [INFO] [stdout] --> examples/forwarding_basics.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 4 | trait FooTrait [INFO] [stdout] | -------- method in this trait [INFO] [stdout] ... [INFO] [stdout] 8 | fn foo (&self) -> &Self::Bar; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.46s [INFO] running `Command { std: "docker" "inspect" "2a36718c9095ffcdf0fc400a5ef53b0fbd4d14a1830d82a95484118a9c20596d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2a36718c9095ffcdf0fc400a5ef53b0fbd4d14a1830d82a95484118a9c20596d", kill_on_drop: false }` [INFO] [stdout] 2a36718c9095ffcdf0fc400a5ef53b0fbd4d14a1830d82a95484118a9c20596d