[INFO] cloning repository https://github.com/lengstrom/rust-pprint
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lengstrom/rust-pprint" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flengstrom%2Frust-pprint"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flengstrom%2Frust-pprint'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c54b6f0b30b806cf250264d1a54e431f31345fed
[INFO] checking lengstrom/rust-pprint against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flengstrom%2Frust-pprint" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lengstrom/rust-pprint on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/lengstrom/rust-pprint
[INFO] finished tweaking git repo https://github.com/lengstrom/rust-pprint
[INFO] tweaked toml for git repo https://github.com/lengstrom/rust-pprint written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/lengstrom/rust-pprint already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-11/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0be1af5fdfa1ff3d30e19f747916aaa79dc7bd747496945ca70a016f74c038fb
[INFO] running `"docker" "start" "-a" "0be1af5fdfa1ff3d30e19f747916aaa79dc7bd747496945ca70a016f74c038fb"`
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking serde v0.4.3
[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:22:48
[INFO] [stderr]     |
[INFO] [stderr] 22  |     fn deserialize<D>(deserializer: &mut D) -> Result<Self, D::Error>
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stderr] 23  |         where D: Deserializer;
[INFO] [stderr]     |                              - help: consider further restricting `Self`: `, Self: std::marker::Sized`
[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] 
[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] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "0be1af5fdfa1ff3d30e19f747916aaa79dc7bd747496945ca70a016f74c038fb"`
[INFO] running `"docker" "rm" "-f" "0be1af5fdfa1ff3d30e19f747916aaa79dc7bd747496945ca70a016f74c038fb"`
[INFO] [stdout] 0be1af5fdfa1ff3d30e19f747916aaa79dc7bd747496945ca70a016f74c038fb