[INFO] fetching crate macro-class-render 0.0.1...
[INFO] testing macro-class-render-0.0.1 against 1.59.0 for beta-1.60-1
[INFO] extracting crate macro-class-render 0.0.1 into /workspace/builds/worker-63/source
[INFO] validating manifest of crates.io crate macro-class-render 0.0.1 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-63/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21e71b33144facda6d79e57c90f2641e6d4773609856d38cefb42d76719e3d86
[INFO] running `Command { std: "docker" "start" "-a" "21e71b33144facda6d79e57c90f2641e6d4773609856d38cefb42d76719e3d86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21e71b33144facda6d79e57c90f2641e6d4773609856d38cefb42d76719e3d86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21e71b33144facda6d79e57c90f2641e6d4773609856d38cefb42d76719e3d86", kill_on_drop: false }`
[INFO] [stdout] 21e71b33144facda6d79e57c90f2641e6d4773609856d38cefb42d76719e3d86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f924abd2729a2ec606f7beb3eb9f651da46b686da93b59b52fa97505623eddac
[INFO] running `Command { std: "docker" "start" "-a" "f924abd2729a2ec606f7beb3eb9f651da46b686da93b59b52fa97505623eddac", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[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]     |                                                 ^                     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 108 -         let generated = fields.iter().map(|x| { (worker(x, &classname)) }).collect::<Vec<_>>();
[INFO] [stdout] 108 +         let generated = fields.iter().map(|x| { worker(x, &classname) }).collect::<Vec<_>>();
[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 3.98s
[INFO] running `Command { std: "docker" "inspect" "f924abd2729a2ec606f7beb3eb9f651da46b686da93b59b52fa97505623eddac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f924abd2729a2ec606f7beb3eb9f651da46b686da93b59b52fa97505623eddac", kill_on_drop: false }`
[INFO] [stdout] f924abd2729a2ec606f7beb3eb9f651da46b686da93b59b52fa97505623eddac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78ac527827873a587969e399395fff4ce71adf975e4ee8e752d94511b94b8c71
[INFO] running `Command { std: "docker" "start" "-a" "78ac527827873a587969e399395fff4ce71adf975e4ee8e752d94511b94b8c71", 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]     |                                                 ^                     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 108 -         let generated = fields.iter().map(|x| { (worker(x, &classname)) }).collect::<Vec<_>>();
[INFO] [stdout] 108 +         let generated = fields.iter().map(|x| { worker(x, &classname) }).collect::<Vec<_>>();
[INFO] [stdout]     | 
[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]     |                                                 ^                     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 108 -         let generated = fields.iter().map(|x| { (worker(x, &classname)) }).collect::<Vec<_>>();
[INFO] [stdout] 108 +         let generated = fields.iter().map(|x| { worker(x, &classname) }).collect::<Vec<_>>();
[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 0.40s
[INFO] running `Command { std: "docker" "inspect" "78ac527827873a587969e399395fff4ce71adf975e4ee8e752d94511b94b8c71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78ac527827873a587969e399395fff4ce71adf975e4ee8e752d94511b94b8c71", kill_on_drop: false }`
[INFO] [stdout] 78ac527827873a587969e399395fff4ce71adf975e4ee8e752d94511b94b8c71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4cc58a464951f10a625acab381bd189db5aba63c039ac95f7cfc145a682618cb
[INFO] running `Command { std: "docker" "start" "-a" "4cc58a464951f10a625acab381bd189db5aba63c039ac95f7cfc145a682618cb", 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]     |                                                 ^                     ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 108 -         let generated = fields.iter().map(|x| { (worker(x, &classname)) }).collect::<Vec<_>>();
[INFO] [stderr] 108 +         let generated = fields.iter().map(|x| { worker(x, &classname) }).collect::<Vec<_>>();
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: `macro-class-render` (lib) generated 1 warning
[INFO] [stderr] warning: `macro-class-render` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/macro_class_render-e575f5255666324b)
[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; finished in 0.00s
[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]     |                                                 ^                     ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 108 -         let generated = fields.iter().map(|x| { (worker(x, &classname)) }).collect::<Vec<_>>();
[INFO] [stderr] 108 +         let generated = fields.iter().map(|x| { worker(x, &classname) }).collect::<Vec<_>>();
[INFO] [stderr]     | 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4cc58a464951f10a625acab381bd189db5aba63c039ac95f7cfc145a682618cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cc58a464951f10a625acab381bd189db5aba63c039ac95f7cfc145a682618cb", kill_on_drop: false }`
[INFO] [stdout] 4cc58a464951f10a625acab381bd189db5aba63c039ac95f7cfc145a682618cb