[INFO] fetching crate palette_derive 0.7.6...
[INFO] testing palette_derive-0.7.6 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate palette_derive 0.7.6 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate palette_derive 0.7.6
[INFO] finished tweaking crates.io crate palette_derive 0.7.6
[INFO] tweaked toml for crates.io crate palette_derive 0.7.6 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate palette_derive 0.7.6 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding find-crate v0.6.3 (available: v0.7.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded find-crate v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc5e241a6b7e9c05d86aaa7298ab134f6a3fe4160e596c149256dc06bf269e8a
[INFO] running `Command { std: "docker" "start" "-a" "fc5e241a6b7e9c05d86aaa7298ab134f6a3fe4160e596c149256dc06bf269e8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc5e241a6b7e9c05d86aaa7298ab134f6a3fe4160e596c149256dc06bf269e8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc5e241a6b7e9c05d86aaa7298ab134f6a3fe4160e596c149256dc06bf269e8a", kill_on_drop: false }`
[INFO] [stdout] fc5e241a6b7e9c05d86aaa7298ab134f6a3fe4160e596c149256dc06bf269e8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b869e6d0374e286ce08c68ac3acb49388b1323c9ecbff7ab73fb239d06211ceb
[INFO] running `Command { std: "docker" "start" "-a" "b869e6d0374e286ce08c68ac3acb49388b1323c9ecbff7ab73fb239d06211ceb", kill_on_drop: false }`
[INFO] [stderr]    Compiling by_address v1.2.1
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling palette_derive v0.7.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `KeyValuePair` is never constructed
[INFO] [stdout]    --> src/meta/mod.rs:144:12
[INFO] [stdout]     |
[INFO] [stdout] 144 | pub struct KeyValuePair {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.58s
[INFO] running `Command { std: "docker" "inspect" "b869e6d0374e286ce08c68ac3acb49388b1323c9ecbff7ab73fb239d06211ceb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b869e6d0374e286ce08c68ac3acb49388b1323c9ecbff7ab73fb239d06211ceb", kill_on_drop: false }`
[INFO] [stdout] b869e6d0374e286ce08c68ac3acb49388b1323c9ecbff7ab73fb239d06211ceb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94e331b30066956246acc83372c8caf576e98864834eb2b42b6d5bfe9e5ef600
[INFO] running `Command { std: "docker" "start" "-a" "94e331b30066956246acc83372c8caf576e98864834eb2b42b6d5bfe9e5ef600", kill_on_drop: false }`
[INFO] [stderr]    Compiling palette_derive v0.7.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `KeyValuePair` is never constructed
[INFO] [stdout]    --> src/meta/mod.rs:144:12
[INFO] [stdout]     |
[INFO] [stdout] 144 | pub struct KeyValuePair {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `KeyValuePair` is never constructed
[INFO] [stdout]    --> src/meta/mod.rs:144:12
[INFO] [stdout]     |
[INFO] [stdout] 144 | pub struct KeyValuePair {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "94e331b30066956246acc83372c8caf576e98864834eb2b42b6d5bfe9e5ef600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94e331b30066956246acc83372c8caf576e98864834eb2b42b6d5bfe9e5ef600", kill_on_drop: false }`
[INFO] [stdout] 94e331b30066956246acc83372c8caf576e98864834eb2b42b6d5bfe9e5ef600
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ee4e72af9a7225e2b1e5527294c5b1ccff7758aef16a5660a9d167591f312aad
[INFO] running `Command { std: "docker" "start" "-a" "ee4e72af9a7225e2b1e5527294c5b1ccff7758aef16a5660a9d167591f312aad", kill_on_drop: false }`
[INFO] [stderr] warning: struct `KeyValuePair` is never constructed
[INFO] [stderr]    --> src/meta/mod.rs:144:12
[INFO] [stderr]     |
[INFO] [stderr] 144 | pub struct KeyValuePair {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `palette_derive` (lib) generated 1 warning
[INFO] [stderr] warning: `palette_derive` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/palette_derive-abb8b8d3e9fdf199)
[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 palette_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] running `Command { std: "docker" "inspect" "ee4e72af9a7225e2b1e5527294c5b1ccff7758aef16a5660a9d167591f312aad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee4e72af9a7225e2b1e5527294c5b1ccff7758aef16a5660a9d167591f312aad", kill_on_drop: false }`
[INFO] [stdout] ee4e72af9a7225e2b1e5527294c5b1ccff7758aef16a5660a9d167591f312aad