[INFO] fetching crate forward-traits 3.1.0...
[INFO] testing forward-traits-3.1.0 against try#ed7f3d77595b4831fdf085f2529aa13b5b51ff7d for pr-134530
[INFO] extracting crate forward-traits 3.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate forward-traits 3.1.0 on toolchain ed7f3d77595b4831fdf085f2529aa13b5b51ff7d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "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-0-tc2/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" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9bfaaa3a259ba8d3bfdfec124987ada130500c19ea45c9b5e80a25607398a9c
[INFO] running `Command { std: "docker" "start" "-a" "e9bfaaa3a259ba8d3bfdfec124987ada130500c19ea45c9b5e80a25607398a9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9bfaaa3a259ba8d3bfdfec124987ada130500c19ea45c9b5e80a25607398a9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9bfaaa3a259ba8d3bfdfec124987ada130500c19ea45c9b5e80a25607398a9c", kill_on_drop: false }`
[INFO] [stdout] e9bfaaa3a259ba8d3bfdfec124987ada130500c19ea45c9b5e80a25607398a9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1f85f1874f9a67dbb24bd47eb3634b039ac22f711a63d22dc6f12f99e0c9458
[INFO] running `Command { std: "docker" "start" "-a" "b1f85f1874f9a67dbb24bd47eb3634b039ac22f711a63d22dc6f12f99e0c9458", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.20s
[INFO] running `Command { std: "docker" "inspect" "b1f85f1874f9a67dbb24bd47eb3634b039ac22f711a63d22dc6f12f99e0c9458", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1f85f1874f9a67dbb24bd47eb3634b039ac22f711a63d22dc6f12f99e0c9458", kill_on_drop: false }`
[INFO] [stdout] b1f85f1874f9a67dbb24bd47eb3634b039ac22f711a63d22dc6f12f99e0c9458
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0cbae6a223e30fc7ff924c06c27444a7f5e781e9d9cdb15787c274d0d16ba25f
[INFO] running `Command { std: "docker" "start" "-a" "0cbae6a223e30fc7ff924c06c27444a7f5e781e9d9cdb15787c274d0d16ba25f", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[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: trait `Foo` is never used
[INFO] [stdout]  --> examples/maybe_sized.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | trait Foo <T>
[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: 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: 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 <Self>);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 13 |     fn foo6 (x: Result <Self, ()>);
[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 <Self>;
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 20 |     fn foo12 () -> Result <Self, ()>;
[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 <T>
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 12.95s
[INFO] running `Command { std: "docker" "inspect" "0cbae6a223e30fc7ff924c06c27444a7f5e781e9d9cdb15787c274d0d16ba25f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cbae6a223e30fc7ff924c06c27444a7f5e781e9d9cdb15787c274d0d16ba25f", kill_on_drop: false }`
[INFO] [stdout] 0cbae6a223e30fc7ff924c06c27444a7f5e781e9d9cdb15787c274d0d16ba25f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4147ed9befbb4608765cf0c080fd03c04c2d672e8649ef2f0d8939c2e6163b09
[INFO] running `Command { std: "docker" "start" "-a" "4147ed9befbb4608765cf0c080fd03c04c2d672e8649ef2f0d8939c2e6163b09", kill_on_drop: false }`
[INFO] [stderr] warning: fields `box_token`, `l_angle_token`, and `r_angle_token` are never read
[INFO] [stderr]   --> src/syn/transformable_types.rs:28:6
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub struct BoxType
[INFO] [stderr]    |            ------- fields in this struct
[INFO] [stderr] 27 | {
[INFO] [stderr] 28 |     pub box_token: kw::Box,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr] 29 |     pub l_angle_token: Token! [<],
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr] 30 |     pub boxed_type: Type,
[INFO] [stderr] 31 |     pub r_angle_token: Token! [>]
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `option_token`, `l_angle_token`, and `r_angle_token` are never read
[INFO] [stderr]   --> src/syn/transformable_types.rs:50:6
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub struct OptionType
[INFO] [stderr]    |            ---------- fields in this struct
[INFO] [stderr] 49 | {
[INFO] [stderr] 50 |     pub option_token: kw::Option,
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr] 51 |     pub l_angle_token: Token! [<],
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr] 52 |     pub option_type: Type,
[INFO] [stderr] 53 |     pub r_angle_token: Token! [>]
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `result_token`, `l_angle_token`, `comma_token`, `error_type`, and `r_angle_token` are never read
[INFO] [stderr]   --> src/syn/transformable_types.rs:72:6
[INFO] [stderr]    |
[INFO] [stderr] 70 | pub struct ResultType
[INFO] [stderr]    |            ---------- fields in this struct
[INFO] [stderr] 71 | {
[INFO] [stderr] 72 |     pub result_token: kw::Result,
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr] 73 |     pub l_angle_token: Token! [<],
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr] 74 |     pub result_type: Type,
[INFO] [stderr] 75 |     pub comma_token: Token! [,],
[INFO] [stderr]    |         ^^^^^^^^^^^
[INFO] [stderr] 76 |     pub error_type: Type,
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr] 77 |     pub r_angle_token: Token! [>]
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `paren` is never read
[INFO] [stderr]   --> src/syn/transformable_types.rs:97:6
[INFO] [stderr]    |
[INFO] [stderr] 94 | pub struct TupleType
[INFO] [stderr]    |            --------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 97 |     pub paren: Paren,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `bracket`, `semi_token`, and `count` are never read
[INFO] [stderr]    --> src/syn/transformable_types.rs:116:6
[INFO] [stderr]     |
[INFO] [stderr] 113 | pub struct ArrayType
[INFO] [stderr]     |            --------- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 116 |     pub bracket: Bracket,
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 122 |     pub semi_token: Token! [;],
[INFO] [stderr]     |         ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 125 |     pub count: Expr
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `forward-traits` (lib) generated 5 warnings
[INFO] [stderr] warning: `forward-traits` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr] warning: trait `WeirdAsRef` is never used
[INFO] [stderr]   --> examples/additional_transformations.rs:28:7
[INFO] [stderr]    |
[INFO] [stderr] 28 | trait WeirdAsRef <T>
[INFO] [stderr]    |       ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `foo` is never used
[INFO] [stderr]  --> examples/forwarding_basics.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | trait FooTrait
[INFO] [stderr]   |       -------- method in this trait
[INFO] [stderr] ...
[INFO] [stderr] 8 |     fn foo (&self) -> &Self::Bar;
[INFO] [stderr]   |        ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Foo` is never used
[INFO] [stderr]  --> examples/maybe_sized.rs:4:7
[INFO] [stderr]   |
[INFO] [stderr] 4 | trait Foo <T>
[INFO] [stderr]   |       ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `A` is never constructed
[INFO] [stderr]  --> examples/maybe_sized.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct A ();
[INFO] [stderr]   |        ^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `B` is never constructed
[INFO] [stderr]   --> examples/maybe_sized.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 | struct B (A);
[INFO] [stderr]    |        ^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated functions are never used
[INFO] [stderr]   --> examples/all_delegations.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 6  | trait Foo: Sized
[INFO] [stderr]    |       --- associated functions in this trait
[INFO] [stderr] ...
[INFO] [stderr] 12 |     fn foo5 (x: Option <Self>);
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 13 |     fn foo6 (x: Result <Self, ()>);
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 14 |     fn foo7 (x: (Self, Self));
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 15 |     fn foo8 (x: [Self; 2]);
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 19 |     fn foo11 () -> Option <Self>;
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 20 |     fn foo12 () -> Result <Self, ()>;
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 21 |     fn foo13 () -> (Self, Self);
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 22 |     fn foo14 () -> [Self; 2];
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Bar` is never used
[INFO] [stderr]   --> examples/all_delegations.rs:26:7
[INFO] [stderr]    |
[INFO] [stderr] 26 | trait Bar: Sized
[INFO] [stderr]    |       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `forward-traits` (example "additional_transformations") generated 1 warning
[INFO] [stderr] warning: `forward-traits` (example "forwarding_basics") generated 1 warning
[INFO] [stderr] warning: `forward-traits` (example "maybe_sized") generated 3 warnings
[INFO] [stderr] warning: `forward-traits` (example "all_delegations") generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/forward_traits-bbfd465b5ea130e8)
[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]    Doc-tests forward_traits
[INFO] [stderr] error: DefId(0:0 ~ forward_traits[7b04]) has more than five doctests
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 1 previous error
[INFO] [stderr] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/bin/rustdoc --edition=2021 --crate-type proc-macro --color auto --crate-name forward_traits --test src/lib.rs --test-run-directory /opt/rustwide/workdir -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern forward_traits=/opt/rustwide/target/debug/deps/libforward_traits-3a90c763bf2ca324.so --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-bd5f9a73ba526c0d.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-6a1040f0a83fae70.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-23203fd80bb66f27.rlib --extern syn_derive=/opt/rustwide/target/debug/deps/libsyn_derive-e9add7dca8015489.so --extern proc_macro -C embed-bitcode=no --check-cfg 'cfg(docsrs)' --check-cfg 'cfg(feature, values())' --cap-lints=forbid --error-format human` (exit status: 1)
[INFO] [stderr] note: test exited abnormally; to see the full output pass --nocapture to the harness.
[INFO] running `Command { std: "docker" "inspect" "4147ed9befbb4608765cf0c080fd03c04c2d672e8649ef2f0d8939c2e6163b09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4147ed9befbb4608765cf0c080fd03c04c2d672e8649ef2f0d8939c2e6163b09", kill_on_drop: false }`
[INFO] [stdout] 4147ed9befbb4608765cf0c080fd03c04c2d672e8649ef2f0d8939c2e6163b09