[INFO] fetching crate palette_derive 0.7.6...
[INFO] testing palette_derive-0.7.6 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate palette_derive 0.7.6 into /workspace/builds/worker-5-tc2/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-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate palette_derive 0.7.6 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19cbcefbcf4598bffb0cbb0bae3f0a64b924f3d85485046124d705bf11b0c0b3
[INFO] running `Command { std: "docker" "start" "-a" "19cbcefbcf4598bffb0cbb0bae3f0a64b924f3d85485046124d705bf11b0c0b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19cbcefbcf4598bffb0cbb0bae3f0a64b924f3d85485046124d705bf11b0c0b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19cbcefbcf4598bffb0cbb0bae3f0a64b924f3d85485046124d705bf11b0c0b3", kill_on_drop: false }`
[INFO] [stdout] 19cbcefbcf4598bffb0cbb0bae3f0a64b924f3d85485046124d705bf11b0c0b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb3def2679815f1fc5adfa5e0123609f88ce661a91f9ea8ff1c412f742f12ecb
[INFO] running `Command { std: "docker" "start" "-a" "eb3def2679815f1fc5adfa5e0123609f88ce661a91f9ea8ff1c412f742f12ecb", kill_on_drop: false }`
[INFO] [stderr]    Compiling by_address v1.2.1
[INFO] [stderr]    Compiling syn v2.0.106
[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 3.62s
[INFO] running `Command { std: "docker" "inspect" "eb3def2679815f1fc5adfa5e0123609f88ce661a91f9ea8ff1c412f742f12ecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb3def2679815f1fc5adfa5e0123609f88ce661a91f9ea8ff1c412f742f12ecb", kill_on_drop: false }`
[INFO] [stdout] eb3def2679815f1fc5adfa5e0123609f88ce661a91f9ea8ff1c412f742f12ecb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a703086507a327697304da3632974581588faea51a150a9297c2c0ae3a5d3e0
[INFO] running `Command { std: "docker" "start" "-a" "8a703086507a327697304da3632974581588faea51a150a9297c2c0ae3a5d3e0", 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 0.56s
[INFO] running `Command { std: "docker" "inspect" "8a703086507a327697304da3632974581588faea51a150a9297c2c0ae3a5d3e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a703086507a327697304da3632974581588faea51a150a9297c2c0ae3a5d3e0", kill_on_drop: false }`
[INFO] [stdout] 8a703086507a327697304da3632974581588faea51a150a9297c2c0ae3a5d3e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 245abf62319c731a2b283cf7b3e41104e105ab5f602660d75b88e0fa81571417
[INFO] running `Command { std: "docker" "start" "-a" "245abf62319c731a2b283cf7b3e41104e105ab5f602660d75b88e0fa81571417", 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 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/palette_derive-783bcf4622451456)
[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" "245abf62319c731a2b283cf7b3e41104e105ab5f602660d75b88e0fa81571417", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "245abf62319c731a2b283cf7b3e41104e105ab5f602660d75b88e0fa81571417", kill_on_drop: false }`
[INFO] [stdout] 245abf62319c731a2b283cf7b3e41104e105ab5f602660d75b88e0fa81571417