[INFO] fetching crate utsl-hybrid-clocks 0.1.0...
[INFO] building utsl-hybrid-clocks-0.1.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate utsl-hybrid-clocks 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate utsl-hybrid-clocks 0.1.0
[INFO] finished tweaking crates.io crate utsl-hybrid-clocks 0.1.0
[INFO] tweaked toml for crates.io crate utsl-hybrid-clocks 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate utsl-hybrid-clocks 0.1.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate utsl-hybrid-clocks 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--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]  Downloading crates ...
[INFO] [stderr]   Downloaded time-macros v0.1.0
[INFO] [stderr]   Downloaded base-x v0.2.6
[INFO] [stderr]   Downloaded standback v0.2.9
[INFO] [stderr]   Downloaded suppositions v0.1.4
[INFO] [stderr]   Downloaded time v0.2.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 828cd8157bd2d85770284f157b8c2c5e42e22f66750e820684733c252beb18f4
[INFO] running `Command { std: "docker" "start" "-a" "828cd8157bd2d85770284f157b8c2c5e42e22f66750e820684733c252beb18f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "828cd8157bd2d85770284f157b8c2c5e42e22f66750e820684733c252beb18f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "828cd8157bd2d85770284f157b8c2c5e42e22f66750e820684733c252beb18f4", kill_on_drop: false }`
[INFO] [stdout] 828cd8157bd2d85770284f157b8c2c5e42e22f66750e820684733c252beb18f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3de2bc2e5462044390905720b725853ba9295abbb2f29b27f7115e10edb7a67e
[INFO] running `Command { std: "docker" "start" "-a" "3de2bc2e5462044390905720b725853ba9295abbb2f29b27f7115e10edb7a67e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]    Compiling utsl-hybrid-clocks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unexpected `cfg` condition value: `serialization`
[INFO] [stdout]   --> src/source/wall_ms.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[cfg_attr(feature = "serialization", derive(Serialize, Deserialize))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `pretty-print` and `time`
[INFO] [stdout]    = help: consider adding `serialization` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(unexpected_cfgs)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `utsl-hybrid-clocks` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "3de2bc2e5462044390905720b725853ba9295abbb2f29b27f7115e10edb7a67e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3de2bc2e5462044390905720b725853ba9295abbb2f29b27f7115e10edb7a67e", kill_on_drop: false }`
[INFO] [stdout] 3de2bc2e5462044390905720b725853ba9295abbb2f29b27f7115e10edb7a67e