[INFO] fetching crate syn-merge 0.0.0...
[INFO] testing syn-merge-0.0.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate syn-merge 0.0.0 into /workspace/builds/worker-5-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-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate syn-merge 0.0.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a683c344492b9cb28c97d04ce5228e9a848fde7e115e6efe209cc34dea605c3
[INFO] running `Command { std: "docker" "start" "-a" "7a683c344492b9cb28c97d04ce5228e9a848fde7e115e6efe209cc34dea605c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a683c344492b9cb28c97d04ce5228e9a848fde7e115e6efe209cc34dea605c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a683c344492b9cb28c97d04ce5228e9a848fde7e115e6efe209cc34dea605c3", kill_on_drop: false }`
[INFO] [stdout] 7a683c344492b9cb28c97d04ce5228e9a848fde7e115e6efe209cc34dea605c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99f6411b4409c5f47000046239b6001d7188b8cb68f3222f75249f68ae9b7029
[INFO] running `Command { std: "docker" "start" "-a" "99f6411b4409c5f47000046239b6001d7188b8cb68f3222f75249f68ae9b7029", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling similar v2.7.0
[INFO] [stderr]    Compiling syn v2.0.110
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.45s
[INFO] running `Command { std: "docker" "inspect" "99f6411b4409c5f47000046239b6001d7188b8cb68f3222f75249f68ae9b7029", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99f6411b4409c5f47000046239b6001d7188b8cb68f3222f75249f68ae9b7029", kill_on_drop: false }`
[INFO] [stdout] 99f6411b4409c5f47000046239b6001d7188b8cb68f3222f75249f68ae9b7029
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d738fc093f575fc456b29b873df625550ef3f1b303a5707c13fe92b4ff7ee1d1
[INFO] running `Command { std: "docker" "start" "-a" "d738fc093f575fc456b29b873df625550ef3f1b303a5707c13fe92b4ff7ee1d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling syn v2.0.110
[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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.51s
[INFO] running `Command { std: "docker" "inspect" "d738fc093f575fc456b29b873df625550ef3f1b303a5707c13fe92b4ff7ee1d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d738fc093f575fc456b29b873df625550ef3f1b303a5707c13fe92b4ff7ee1d1", kill_on_drop: false }`
[INFO] [stdout] d738fc093f575fc456b29b873df625550ef3f1b303a5707c13fe92b4ff7ee1d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 39712817e1c3063f6c9877bfd16980e1b2137fd1c9fe307559637227ca77a230
[INFO] running `Command { std: "docker" "start" "-a" "39712817e1c3063f6c9877bfd16980e1b2137fd1c9fe307559637227ca77a230", 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `syn-merge` (lib) generated 1 warning (run `cargo fix --lib -p syn-merge` to apply 1 suggestion)
[INFO] [stderr] warning: `syn-merge` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/syn_merge-13f4ccbb1e010924)
[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] [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" "39712817e1c3063f6c9877bfd16980e1b2137fd1c9fe307559637227ca77a230", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39712817e1c3063f6c9877bfd16980e1b2137fd1c9fe307559637227ca77a230", kill_on_drop: false }`
[INFO] [stdout] 39712817e1c3063f6c9877bfd16980e1b2137fd1c9fe307559637227ca77a230