[INFO] fetching crate next-gen_proc-macro 0.0.10...
[INFO] testing next-gen_proc-macro-0.0.10 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate next-gen_proc-macro 0.0.10 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate next-gen_proc-macro 0.0.10 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate next-gen_proc-macro 0.0.10
[INFO] finished tweaking crates.io crate next-gen_proc-macro 0.0.10
[INFO] tweaked toml for crates.io crate next-gen_proc-macro 0.0.10 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 418f80fa3b8f8be81661d3cff98275bad92f0af73f0b5f117c345d939e44ccd3
[INFO] running `Command { std: "docker" "start" "-a" "418f80fa3b8f8be81661d3cff98275bad92f0af73f0b5f117c345d939e44ccd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "418f80fa3b8f8be81661d3cff98275bad92f0af73f0b5f117c345d939e44ccd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "418f80fa3b8f8be81661d3cff98275bad92f0af73f0b5f117c345d939e44ccd3", kill_on_drop: false }`
[INFO] [stdout] 418f80fa3b8f8be81661d3cff98275bad92f0af73f0b5f117c345d939e44ccd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef7d424de6f54abbe968c0276a8001dfb7314559a20aac1cae9ac5c1a7b51534
[INFO] running `Command { std: "docker" "start" "-a" "ef7d424de6f54abbe968c0276a8001dfb7314559a20aac1cae9ac5c1a7b51534", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling fstrings-proc-macro v0.2.3
[INFO] [stderr]    Compiling fstrings v0.2.3
[INFO] [stderr]    Compiling next-gen_proc-macro v0.0.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> mod.rs:55:18
[INFO] [stdout]    |
[INFO] [stdout] 55 |     debug_input!(&input);
[INFO] [stdout]    |                  ^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 55 |     debug_input!(let _ = &input);
[INFO] [stdout]    |                  +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.26s
[INFO] running `Command { std: "docker" "inspect" "ef7d424de6f54abbe968c0276a8001dfb7314559a20aac1cae9ac5c1a7b51534", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef7d424de6f54abbe968c0276a8001dfb7314559a20aac1cae9ac5c1a7b51534", kill_on_drop: false }`
[INFO] [stdout] ef7d424de6f54abbe968c0276a8001dfb7314559a20aac1cae9ac5c1a7b51534
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d292ab60ea62da19cebe61bf906187bee29b2b488617c9b3036d369cb34b695a
[INFO] running `Command { std: "docker" "start" "-a" "d292ab60ea62da19cebe61bf906187bee29b2b488617c9b3036d369cb34b695a", kill_on_drop: false }`
[INFO] [stderr]    Compiling next-gen_proc-macro v0.0.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> mod.rs:55:18
[INFO] [stdout]    |
[INFO] [stdout] 55 |     debug_input!(&input);
[INFO] [stdout]    |                  ^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 55 |     debug_input!(let _ = &input);
[INFO] [stdout]    |                  +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> mod.rs:55:18
[INFO] [stdout]    |
[INFO] [stdout] 55 |     debug_input!(&input);
[INFO] [stdout]    |                  ^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 55 |     debug_input!(let _ = &input);
[INFO] [stdout]    |                  +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] [stderr]   Executable unittests mod.rs (/opt/rustwide/target/debug/deps/next_gen_proc_macro-fa7b17fb8c1cb3ca)
[INFO] running `Command { std: "docker" "inspect" "d292ab60ea62da19cebe61bf906187bee29b2b488617c9b3036d369cb34b695a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d292ab60ea62da19cebe61bf906187bee29b2b488617c9b3036d369cb34b695a", kill_on_drop: false }`
[INFO] [stdout] d292ab60ea62da19cebe61bf906187bee29b2b488617c9b3036d369cb34b695a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e3c69a5f5664a52f5e3ddec3aeb715d75fcbda373150b9f0c279322f2ae2f561
[INFO] running `Command { std: "docker" "start" "-a" "e3c69a5f5664a52f5e3ddec3aeb715d75fcbda373150b9f0c279322f2ae2f561", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> mod.rs:55:18
[INFO] [stderr]    |
[INFO] [stderr] 55 |     debug_input!(&input);
[INFO] [stderr]    |                  ^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 55 |     debug_input!(let _ = &input);
[INFO] [stderr]    |                  +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `next-gen_proc-macro` (lib) generated 1 warning
[INFO] [stderr] warning: `next-gen_proc-macro` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests mod.rs (/opt/rustwide/target/debug/deps/next_gen_proc_macro-fa7b17fb8c1cb3ca)
[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 next-gen_proc-macro
[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" "e3c69a5f5664a52f5e3ddec3aeb715d75fcbda373150b9f0c279322f2ae2f561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3c69a5f5664a52f5e3ddec3aeb715d75fcbda373150b9f0c279322f2ae2f561", kill_on_drop: false }`
[INFO] [stdout] e3c69a5f5664a52f5e3ddec3aeb715d75fcbda373150b9f0c279322f2ae2f561