[INFO] updating cached repository https://github.com/neivv/scarf
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/neivv/scarf
[INFO] [stderr]    1c60982..70adab7  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 70adab78532be25cfc8468034a2fe66d31e6d867
[INFO] checking neivv/scarf against master#6250d56355d72264ece721e8d0dc95b16a6824b1 for pr-68350
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneivv%2Fscarf" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/neivv/scarf on toolchain 6250d56355d72264ece721e8d0dc95b16a6824b1
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/neivv/scarf
[INFO] finished tweaking git repo https://github.com/neivv/scarf
[INFO] tweaked toml for git repo https://github.com/neivv/scarf written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/neivv/scarf already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "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] 7d3d63f8165d98dca8d40db4fad8f81e678cc2f93fad0c25046f8e520199a901
[INFO] running `"docker" "start" "-a" "7d3d63f8165d98dca8d40db4fad8f81e678cc2f93fad0c25046f8e520199a901"`
[INFO] [stderr]     Checking lde v0.3.0 (https://github.com/CasualX/lde#6d8e2870)
[INFO] [stderr]     Checking array-init v0.1.1
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking scarf v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0277]: the trait bound `std::rc::Rc<operand::Operand>: serde::ser::Serialize` is not satisfied
[INFO] [stderr]   --> src/operand/simplify_tests.rs:5:36
[INFO] [stderr]    |
[INFO] [stderr] 5  |     let bytes = bincode::serialize(&simplified).unwrap();
[INFO] [stderr]    |                                    ^^^^^^^^^^^ the trait `serde::ser::Serialize` is not implemented for `std::rc::Rc<operand::Operand>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bincode-1.2.1/src/lib.rs:96:8
[INFO] [stderr]    |
[INFO] [stderr] 96 |     T: serde::Serialize,
[INFO] [stderr]    |        ---------------- required by this bound in `bincode::serialize`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `operand::Operand: serde::de::Deserialize<'_>` is not satisfied
[INFO] [stderr]    --> src/operand/simplify_tests.rs:6:37
[INFO] [stderr]     |
[INFO] [stderr] 6   |     let back: Rc<Operand> = Rc::new(bincode::deserialize(&bytes).unwrap());
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `serde::de::Deserialize<'_>` is not implemented for `operand::Operand`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bincode-1.2.1/src/lib.rs:140:8
[INFO] [stderr]     |
[INFO] [stderr] 140 |     T: serde::de::Deserialize<'a>,
[INFO] [stderr]     |        -------------------------- required by this bound in `bincode::deserialize`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `scarf`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "7d3d63f8165d98dca8d40db4fad8f81e678cc2f93fad0c25046f8e520199a901"`
[INFO] running `"docker" "rm" "-f" "7d3d63f8165d98dca8d40db4fad8f81e678cc2f93fad0c25046f8e520199a901"`
[INFO] [stdout] 7d3d63f8165d98dca8d40db4fad8f81e678cc2f93fad0c25046f8e520199a901