[INFO] fetching crate mendes-derive 0.0.6...
[INFO] testing mendes-derive-0.0.6 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate mendes-derive 0.0.6 into /workspace/builds/worker-91/source
[INFO] validating manifest of crates.io crate mendes-derive 0.0.6 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mendes-derive 0.0.6
[INFO] finished tweaking crates.io crate mendes-derive 0.0.6
[INFO] tweaked toml for crates.io crate mendes-derive 0.0.6 written to /workspace/builds/worker-91/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 695c5c20295cdeaf0364c9f31d3ce0e6f63f5ec132982432a3df54e50ed80877
[INFO] running `Command { std: "docker" "start" "-a" "695c5c20295cdeaf0364c9f31d3ce0e6f63f5ec132982432a3df54e50ed80877", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "695c5c20295cdeaf0364c9f31d3ce0e6f63f5ec132982432a3df54e50ed80877", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "695c5c20295cdeaf0364c9f31d3ce0e6f63f5ec132982432a3df54e50ed80877", kill_on_drop: false }`
[INFO] [stdout] 695c5c20295cdeaf0364c9f31d3ce0e6f63f5ec132982432a3df54e50ed80877
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05767d7cbd076e70cb6e64969c26ed5fd881b54619e832b563008cf091ee0577
[INFO] running `Command { std: "docker" "start" "-a" "05767d7cbd076e70cb6e64969c26ed5fd881b54619e832b563008cf091ee0577", kill_on_drop: false }`
[INFO] [stderr]    Compiling mendes-derive v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/lib.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 | /     mem::replace(
[INFO] [stdout] 103 | |         block,
[INFO] [stdout] 104 | |         Box::new(syn::parse::<syn::Block>(new.into()).unwrap()),
[INFO] [stdout] 105 | |     );
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.88s
[INFO] running `Command { std: "docker" "inspect" "05767d7cbd076e70cb6e64969c26ed5fd881b54619e832b563008cf091ee0577", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05767d7cbd076e70cb6e64969c26ed5fd881b54619e832b563008cf091ee0577", kill_on_drop: false }`
[INFO] [stdout] 05767d7cbd076e70cb6e64969c26ed5fd881b54619e832b563008cf091ee0577
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 848bb1ed31e35b7dfb387b42017a4d1474a2dbd1ee995e72d7b09edcf741cd94
[INFO] running `Command { std: "docker" "start" "-a" "848bb1ed31e35b7dfb387b42017a4d1474a2dbd1ee995e72d7b09edcf741cd94", kill_on_drop: false }`
[INFO] [stderr]    Compiling mendes-derive v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/lib.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 | /     mem::replace(
[INFO] [stdout] 103 | |         block,
[INFO] [stdout] 104 | |         Box::new(syn::parse::<syn::Block>(new.into()).unwrap()),
[INFO] [stdout] 105 | |     );
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/lib.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 | /     mem::replace(
[INFO] [stdout] 103 | |         block,
[INFO] [stdout] 104 | |         Box::new(syn::parse::<syn::Block>(new.into()).unwrap()),
[INFO] [stdout] 105 | |     );
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "848bb1ed31e35b7dfb387b42017a4d1474a2dbd1ee995e72d7b09edcf741cd94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "848bb1ed31e35b7dfb387b42017a4d1474a2dbd1ee995e72d7b09edcf741cd94", kill_on_drop: false }`
[INFO] [stdout] 848bb1ed31e35b7dfb387b42017a4d1474a2dbd1ee995e72d7b09edcf741cd94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b8133b706ea0441e1e7d9ca1d5d8178c896662dffd04e83915c9babb73ddbfe4
[INFO] running `Command { std: "docker" "start" "-a" "b8133b706ea0441e1e7d9ca1d5d8178c896662dffd04e83915c9babb73ddbfe4", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/lib.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 | /     mem::replace(
[INFO] [stderr] 103 | |         block,
[INFO] [stderr] 104 | |         Box::new(syn::parse::<syn::Block>(new.into()).unwrap()),
[INFO] [stderr] 105 | |     );
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: `mendes-derive` (lib) generated 1 warning
[INFO] [stderr] warning: `mendes-derive` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mendes_derive-c43fb95305cb971b)
[INFO] [stderr]    Doc-tests mendes-derive
[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" "b8133b706ea0441e1e7d9ca1d5d8178c896662dffd04e83915c9babb73ddbfe4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8133b706ea0441e1e7d9ca1d5d8178c896662dffd04e83915c9babb73ddbfe4", kill_on_drop: false }`
[INFO] [stdout] b8133b706ea0441e1e7d9ca1d5d8178c896662dffd04e83915c9babb73ddbfe4