[INFO] fetching crate macro-class-render 0.0.1...
[INFO] testing macro-class-render-0.0.1 against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] extracting crate macro-class-render 0.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate macro-class-render 0.0.1 on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate macro-class-render 0.0.1
[INFO] finished tweaking crates.io crate macro-class-render 0.0.1
[INFO] tweaked toml for crates.io crate macro-class-render 0.0.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a6b70477872c7ac0a0371f21355b02e9505f3e439ad349353f5d259c4dbb4c9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7a6b70477872c7ac0a0371f21355b02e9505f3e439ad349353f5d259c4dbb4c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a6b70477872c7ac0a0371f21355b02e9505f3e439ad349353f5d259c4dbb4c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a6b70477872c7ac0a0371f21355b02e9505f3e439ad349353f5d259c4dbb4c9", kill_on_drop: false }`
[INFO] [stdout] 7a6b70477872c7ac0a0371f21355b02e9505f3e439ad349353f5d259c4dbb4c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c444a1f1777d78c8bb56370bab05ef65320d077ceb3d6a4f1a716e7c007f159
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7c444a1f1777d78c8bb56370bab05ef65320d077ceb3d6a4f1a716e7c007f159", kill_on_drop: false }`
[INFO] [stderr]    Compiling macro-class-render v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:108:49
[INFO] [stdout]     |
[INFO] [stdout] 108 |         let generated = fields.iter().map(|x| { (worker(x, &classname)) }).collect::<Vec<_>>();
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `Command { std: "docker" "inspect" "7c444a1f1777d78c8bb56370bab05ef65320d077ceb3d6a4f1a716e7c007f159", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c444a1f1777d78c8bb56370bab05ef65320d077ceb3d6a4f1a716e7c007f159", kill_on_drop: false }`
[INFO] [stdout] 7c444a1f1777d78c8bb56370bab05ef65320d077ceb3d6a4f1a716e7c007f159
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52bb550a96ffee8ce058e92754648458da4ddfb0b385fc6ceb0a8995b0121519
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "52bb550a96ffee8ce058e92754648458da4ddfb0b385fc6ceb0a8995b0121519", kill_on_drop: false }`
[INFO] [stderr]    Compiling macro-class-render v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:108:49
[INFO] [stdout]     |
[INFO] [stdout] 108 |         let generated = fields.iter().map(|x| { (worker(x, &classname)) }).collect::<Vec<_>>();
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:108:49
[INFO] [stdout]     |
[INFO] [stdout] 108 |         let generated = fields.iter().map(|x| { (worker(x, &classname)) }).collect::<Vec<_>>();
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "52bb550a96ffee8ce058e92754648458da4ddfb0b385fc6ceb0a8995b0121519", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52bb550a96ffee8ce058e92754648458da4ddfb0b385fc6ceb0a8995b0121519", kill_on_drop: false }`
[INFO] [stdout] 52bb550a96ffee8ce058e92754648458da4ddfb0b385fc6ceb0a8995b0121519
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 607b7e9a3579fd6b56aa0cda2d3d9878fc199f979a651e32f2a220be3fead7ac
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "607b7e9a3579fd6b56aa0cda2d3d9878fc199f979a651e32f2a220be3fead7ac", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/lib.rs:108:49
[INFO] [stderr]     |
[INFO] [stderr] 108 |         let generated = fields.iter().map(|x| { (worker(x, &classname)) }).collect::<Vec<_>>();
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/lib.rs:108:49
[INFO] [stderr]     |
[INFO] [stderr] 108 |         let generated = fields.iter().map(|x| { (worker(x, &classname)) }).collect::<Vec<_>>();
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/macro_class_render-3f72602879b38f75
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests macro-class-render
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:108:49
[INFO] [stderr]     |
[INFO] [stderr] 108 |         let generated = fields.iter().map(|x| { (worker(x, &classname)) }).collect::<Vec<_>>();
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "607b7e9a3579fd6b56aa0cda2d3d9878fc199f979a651e32f2a220be3fead7ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "607b7e9a3579fd6b56aa0cda2d3d9878fc199f979a651e32f2a220be3fead7ac", kill_on_drop: false }`
[INFO] [stdout] 607b7e9a3579fd6b56aa0cda2d3d9878fc199f979a651e32f2a220be3fead7ac