[INFO] updating cached repository https://github.com/uasi/skv
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b297df3ef9c6943f436641670a400de332a06d9f
[INFO] checking uasi/skv against try#00e4530a79c42b21a6ca2ac1edb597c90d21f89f for pr-64672
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuasi%2Fskv" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/uasi/skv on toolchain 00e4530a79c42b21a6ca2ac1edb597c90d21f89f
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/uasi/skv
[INFO] finished tweaking git repo https://github.com/uasi/skv
[INFO] tweaked toml for git repo https://github.com/uasi/skv written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/uasi/skv already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /big/crater/work/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0b93a761a16c10692cbbf0d584d17e4f8fd96a2c248836896027af388f832e7b
[INFO] running `"docker" "start" "-a" "0b93a761a16c10692cbbf0d584d17e4f8fd96a2c248836896027af388f832e7b"`
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking uuid v0.1.18
[INFO] [stderr]     Checking serde v0.4.3
[INFO] [stderr]     Checking url v0.2.38
[INFO] [stderr]     Checking clap v0.9.2
[INFO] [stderr] error[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-0.4.3/src/de/mod.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | /     fn deserialize<D>(deserializer: &mut D) -> Result<Self, D::Error>
[INFO] [stderr] 23 | |         where D: Deserializer;
[INFO] [stderr]    | |______________________________^ doesn't have a size known at compile-time
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::marker::Sized` is not implemented for `Self`
[INFO] [stderr]    = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr]    = help: consider adding a `where Self: std::marker::Sized` bound
[INFO] [stderr]    = note: required by `std::result::Result`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `serde`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "0b93a761a16c10692cbbf0d584d17e4f8fd96a2c248836896027af388f832e7b"`
[INFO] running `"docker" "rm" "-f" "0b93a761a16c10692cbbf0d584d17e4f8fd96a2c248836896027af388f832e7b"`
[INFO] [stdout] 0b93a761a16c10692cbbf0d584d17e4f8fd96a2c248836896027af388f832e7b