[INFO] fetching crate fn_abi 3.0.0...
[INFO] checking fn_abi-3.0.0 against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] extracting crate fn_abi 3.0.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate fn_abi 3.0.0
[INFO] finished tweaking crates.io crate fn_abi 3.0.0
[INFO] tweaked toml for crates.io crate fn_abi 3.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fn_abi 3.0.0 on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to highest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v3.0.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 581eb7988e4e2c19938c4b15e08da87a60fbebc09fc1d883eb40b86db903791e
[INFO] running `Command { std: "docker" "start" "581eb7988e4e2c19938c4b15e08da87a60fbebc09fc1d883eb40b86db903791e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "581eb7988e4e2c19938c4b15e08da87a60fbebc09fc1d883eb40b86db903791e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "581eb7988e4e2c19938c4b15e08da87a60fbebc09fc1d883eb40b86db903791e" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "581eb7988e4e2c19938c4b15e08da87a60fbebc09fc1d883eb40b86db903791e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "581eb7988e4e2c19938c4b15e08da87a60fbebc09fc1d883eb40b86db903791e" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.27
[INFO] [stderr]     Checking syn_squash v0.1.0
[INFO] [stderr]     Checking proc-macro2 v1.0.107
[INFO] [stderr]     Checking quote v1.0.47
[INFO] [stderr]     Checking syn v1.0.109
[INFO] [stderr]     Checking fn_abi v3.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: useless conversion to the same type: `TokenStream`
[INFO] [stdout]    --> src/lib.rs:146:2
[INFO] [stdout]     |
[INFO] [stdout] 146 |     function.into_tokens().into()
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 146 -     function.into_tokens().into()
[INFO] [stdout] 146 +     function.into_tokens()
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 146 -     function.into_tokens().into()
[INFO] [stdout] 146 +     <TokenStream as Into<_>>::into(function.into_tokens())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:39:11
[INFO] [stdout]    |
[INFO] [stdout] 39 |             fn abi(&mut self) -> MutableAbi {
[INFO] [stdout]    |                    ^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 39 |             fn abi(&mut self) -> MutableAbi<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:52:11
[INFO] [stdout]    |
[INFO] [stdout] 52 |             fn abi(&mut self) -> MutableAbi {
[INFO] [stdout]    |                    ^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 52 |             fn abi(&mut self) -> MutableAbi<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:58:11
[INFO] [stdout]    |
[INFO] [stdout] 58 |             fn abi(&mut self) -> MutableAbi {
[INFO] [stdout]    |                    ^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 58 |             fn abi(&mut self) -> MutableAbi<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fn_abi` (lib test) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `TokenStream`
[INFO] [stdout]    --> src/lib.rs:146:2
[INFO] [stdout]     |
[INFO] [stdout] 146 |     function.into_tokens().into()
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 146 -     function.into_tokens().into()
[INFO] [stdout] 146 +     function.into_tokens()
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 146 -     function.into_tokens().into()
[INFO] [stdout] 146 +     <TokenStream as Into<_>>::into(function.into_tokens())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:39:11
[INFO] [stdout]    |
[INFO] [stdout] 39 |             fn abi(&mut self) -> MutableAbi {
[INFO] [stdout]    |                    ^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 39 |             fn abi(&mut self) -> MutableAbi<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:52:11
[INFO] [stdout]    |
[INFO] [stdout] 52 |             fn abi(&mut self) -> MutableAbi {
[INFO] [stdout]    |                    ^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 52 |             fn abi(&mut self) -> MutableAbi<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:58:11
[INFO] [stdout]    |
[INFO] [stdout] 58 |             fn abi(&mut self) -> MutableAbi {
[INFO] [stdout]    |                    ^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 58 |             fn abi(&mut self) -> MutableAbi<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fn_abi` (lib) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "581eb7988e4e2c19938c4b15e08da87a60fbebc09fc1d883eb40b86db903791e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "581eb7988e4e2c19938c4b15e08da87a60fbebc09fc1d883eb40b86db903791e", kill_on_drop: false }`
[INFO] [stdout] 581eb7988e4e2c19938c4b15e08da87a60fbebc09fc1d883eb40b86db903791e
