[INFO] fetching crate js-regexp-macros 0.2.1...
[INFO] checking js-regexp-macros-0.2.1 against c60b92c03ca8a3b101eb9d57f51e2232690638c7 for pr-164148-crater-rollup
[INFO] extracting crate js-regexp-macros 0.2.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate js-regexp-macros 0.2.1
[INFO] finished tweaking crates.io crate js-regexp-macros 0.2.1
[INFO] tweaked toml for crates.io crate js-regexp-macros 0.2.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate js-regexp-macros 0.2.1 on toolchain c60b92c03ca8a3b101eb9d57f51e2232690638c7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "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" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to highest compatible versions
[INFO] [stderr]       Adding syn v2.0.119 (available: v3.0.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a3c6ccf52f7f4ba5dc44391ca4a19119c78da42a18d21f9c8e1b80b3d0c9d315
[INFO] running `Command { std: "docker" "start" "a3c6ccf52f7f4ba5dc44391ca4a19119c78da42a18d21f9c8e1b80b3d0c9d315", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3c6ccf52f7f4ba5dc44391ca4a19119c78da42a18d21f9c8e1b80b3d0c9d315", 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" "a3c6ccf52f7f4ba5dc44391ca4a19119c78da42a18d21f9c8e1b80b3d0c9d315" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3c6ccf52f7f4ba5dc44391ca4a19119c78da42a18d21f9c8e1b80b3d0c9d315", 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" "a3c6ccf52f7f4ba5dc44391ca4a19119c78da42a18d21f9c8e1b80b3d0c9d315" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]     Checking unicode-ident v1.0.27
[INFO] [stderr]     Checking quote v1.0.47
[INFO] [stderr]     Checking syn v2.0.119
[INFO] [stderr]     Checking js-regexp-macros v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: useless conversion to the same type: `TokenStream` js_regexp_macros
[INFO] [stdout]    --> src/lib.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 |     output.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] 155 -     output.into()
[INFO] [stdout] 155 +     output
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 155 -     output.into()
[INFO] [stdout] 155 +     <TokenStream as Into<_>>::into(output)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `js-regexp-macros` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `TokenStream` js_regexp_macros
[INFO] [stdout]    --> src/lib.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 |     output.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] 155 -     output.into()
[INFO] [stdout] 155 +     output
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 155 -     output.into()
[INFO] [stdout] 155 +     <TokenStream as Into<_>>::into(output)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `js-regexp-macros` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "a3c6ccf52f7f4ba5dc44391ca4a19119c78da42a18d21f9c8e1b80b3d0c9d315", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3c6ccf52f7f4ba5dc44391ca4a19119c78da42a18d21f9c8e1b80b3d0c9d315", kill_on_drop: false }`
[INFO] [stdout] a3c6ccf52f7f4ba5dc44391ca4a19119c78da42a18d21f9c8e1b80b3d0c9d315
