[INFO] fetching crate syn-merge 0.0.0...
[INFO] testing syn-merge-0.0.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate syn-merge 0.0.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate syn-merge 0.0.0
[INFO] finished tweaking crates.io crate syn-merge 0.0.0
[INFO] tweaked toml for crates.io crate syn-merge 0.0.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate syn-merge 0.0.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7ccdc00c36f0489cc0a93888a71f0916fca5b8b67538207125f29ce8c9ed8ee
[INFO] running `Command { std: "docker" "start" "-a" "b7ccdc00c36f0489cc0a93888a71f0916fca5b8b67538207125f29ce8c9ed8ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7ccdc00c36f0489cc0a93888a71f0916fca5b8b67538207125f29ce8c9ed8ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7ccdc00c36f0489cc0a93888a71f0916fca5b8b67538207125f29ce8c9ed8ee", kill_on_drop: false }`
[INFO] [stdout] b7ccdc00c36f0489cc0a93888a71f0916fca5b8b67538207125f29ce8c9ed8ee
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ee60b5d93b05b3351d23e88bede7969b6ec7bf38d0d918ede249970b76578ee
[INFO] running `Command { std: "docker" "start" "-a" "0ee60b5d93b05b3351d23e88bede7969b6ec7bf38d0d918ede249970b76578ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling similar v2.7.0
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling syn-merge v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `files`
[INFO] [stdout]   --> src/lib.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn merge_files(files: &[(syn::File, Cfgs)]) -> Result<syn::File, Error> {
[INFO] [stdout]    |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_files`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.20s
[INFO] running `Command { std: "docker" "inspect" "0ee60b5d93b05b3351d23e88bede7969b6ec7bf38d0d918ede249970b76578ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ee60b5d93b05b3351d23e88bede7969b6ec7bf38d0d918ede249970b76578ee", kill_on_drop: false }`
[INFO] [stdout] 0ee60b5d93b05b3351d23e88bede7969b6ec7bf38d0d918ede249970b76578ee
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b72d15b77cbafd96e23ee60b66db92755ba6e601b72e3ce1a5361fbbe45161f
[INFO] running `Command { std: "docker" "start" "-a" "7b72d15b77cbafd96e23ee60b66db92755ba6e601b72e3ce1a5361fbbe45161f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling syn-merge v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `files`
[INFO] [stdout]   --> src/lib.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn merge_files(files: &[(syn::File, Cfgs)]) -> Result<syn::File, Error> {
[INFO] [stdout]    |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_files`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `files`
[INFO] [stdout]   --> src/lib.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn merge_files(files: &[(syn::File, Cfgs)]) -> Result<syn::File, Error> {
[INFO] [stdout]    |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_files`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.25s
[INFO] running `Command { std: "docker" "inspect" "7b72d15b77cbafd96e23ee60b66db92755ba6e601b72e3ce1a5361fbbe45161f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b72d15b77cbafd96e23ee60b66db92755ba6e601b72e3ce1a5361fbbe45161f", kill_on_drop: false }`
[INFO] [stdout] 7b72d15b77cbafd96e23ee60b66db92755ba6e601b72e3ce1a5361fbbe45161f
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8ba14c9ea5ffe1ded3d540fd6e7fc37f34bba90173f93940ab8b357b4df2d787
[INFO] running `Command { std: "docker" "start" "-a" "8ba14c9ea5ffe1ded3d540fd6e7fc37f34bba90173f93940ab8b357b4df2d787", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `files`
[INFO] [stderr]   --> src/lib.rs:24:20
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn merge_files(files: &[(syn::File, Cfgs)]) -> Result<syn::File, Error> {
[INFO] [stderr]    |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_files`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `syn-merge` (lib) generated 1 warning
[INFO] [stderr] warning: `syn-merge` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/syn_merge-c687aeba6b9934dc)
[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 syn_merge
[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] running `Command { std: "docker" "inspect" "8ba14c9ea5ffe1ded3d540fd6e7fc37f34bba90173f93940ab8b357b4df2d787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ba14c9ea5ffe1ded3d540fd6e7fc37f34bba90173f93940ab8b357b4df2d787", kill_on_drop: false }`
[INFO] [stdout] 8ba14c9ea5ffe1ded3d540fd6e7fc37f34bba90173f93940ab8b357b4df2d787