[INFO] crate kurobako_problems 0.1.1 is already in cache
[INFO] checking kurobako_problems-0.1.1 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] extracting crate kurobako_problems 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate kurobako_problems 0.1.1 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate kurobako_problems 0.1.1
[INFO] finished tweaking crates.io crate kurobako_problems 0.1.1
[INFO] tweaked toml for crates.io crate kurobako_problems 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "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] 91aa1e87ab2ce8ddc0d42087adc21f6aeac360e4312f4be8f9e1ffcd1dfece47
[INFO] running `"docker" "start" "-a" "91aa1e87ab2ce8ddc0d42087adc21f6aeac360e4312f4be8f9e1ffcd1dfece47"`
[INFO] [stderr]    Compiling rlua v0.17.0
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]    Compiling trackable_derive v0.1.2
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]     Checking trackable v0.2.23
[INFO] [stderr]     Checking bytecodec v0.4.12
[INFO] [stderr]     Checking hdf5file v0.1.1
[INFO] [stderr]     Checking structopt v0.3.5
[INFO] [stderr]     Checking protobuf_codec v0.2.8
[INFO] [stderr]     Checking kurobako_core v0.1.4
[INFO] [stderr]     Checking nasbench v0.1.1
[INFO] [stderr]     Checking kurobako_problems v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0277]: `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>` cannot be sent between threads safely
[INFO] [stderr]   --> src/fcnet.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 28 | impl ProblemRecipe for FcnetProblemRecipe {
[INFO] [stderr]    | ----------------------------------------- in this `impl` item
[INFO] [stderr] 29 |     type Factory = FcnetProblemFactory;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>` cannot be sent between threads safely
[INFO] [stderr]    |
[INFO] [stderr]    = help: within `fcnet::FcnetProblemFactory`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>`
[INFO] [stderr]    = note: required because it appears within the type `fcnet::FcnetProblemFactory`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>` cannot be sent between threads safely
[INFO] [stderr]   --> src/fcnet.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | impl ProblemFactory for FcnetProblemFactory {
[INFO] [stderr]    | ------------------------------------------- in this `impl` item
[INFO] [stderr] 47 |     type Problem = FcnetProblem;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>` cannot be sent between threads safely
[INFO] [stderr]    |
[INFO] [stderr]    = help: within `fcnet::FcnetProblem`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>`
[INFO] [stderr]    = note: required because it appears within the type `fcnet::FcnetProblem`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>` cannot be sent between threads safely
[INFO] [stderr]   --> src/fcnet.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 94 | impl Problem for FcnetProblem {
[INFO] [stderr]    | ----------------------------- in this `impl` item
[INFO] [stderr] 95 |     type Evaluator = FcnetEvaluator;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>` cannot be sent between threads safely
[INFO] [stderr]    |
[INFO] [stderr]    = help: within `fcnet::FcnetEvaluator`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>`
[INFO] [stderr]    = note: required because it appears within the type `fcnet::FcnetEvaluator`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>` cannot be sent between threads safely
[INFO] [stderr]    --> src/fcnet.rs:129:6
[INFO] [stderr]     |
[INFO] [stderr] 129 | impl Evaluator for FcnetEvaluator {
[INFO] [stderr]     |      ^^^^^^^^^ `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>` cannot be sent between threads safely
[INFO] [stderr]     |
[INFO] [stderr]     = help: within `fcnet::FcnetEvaluator`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>`
[INFO] [stderr]     = note: required because it appears within the type `fcnet::FcnetEvaluator`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `std::rc::Rc<nasbench::dataset::NasBench>` cannot be sent between threads safely
[INFO] [stderr]   --> src/nasbench.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 40 | impl ProblemRecipe for NasbenchProblemRecipe {
[INFO] [stderr]    | -------------------------------------------- in this `impl` item
[INFO] [stderr] 41 |     type Factory = NasbenchProblemFactory;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `std::rc::Rc<nasbench::dataset::NasBench>` cannot be sent between threads safely
[INFO] [stderr]    |
[INFO] [stderr]    = help: within `nasbench::NasbenchProblemFactory`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<nasbench::dataset::NasBench>`
[INFO] [stderr]    = note: required because it appears within the type `nasbench::NasbenchProblemFactory`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `std::rc::Rc<nasbench::dataset::NasBench>` cannot be sent between threads safely
[INFO] [stderr]   --> src/nasbench.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 58 | impl ProblemFactory for NasbenchProblemFactory {
[INFO] [stderr]    | ---------------------------------------------- in this `impl` item
[INFO] [stderr] 59 |     type Problem = NasbenchProblem;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `std::rc::Rc<nasbench::dataset::NasBench>` cannot be sent between threads safely
[INFO] [stderr]    |
[INFO] [stderr]    = help: within `nasbench::NasbenchProblem`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<nasbench::dataset::NasBench>`
[INFO] [stderr]    = note: required because it appears within the type `nasbench::NasbenchProblem`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `std::rc::Rc<nasbench::dataset::NasBench>` cannot be sent between threads safely
[INFO] [stderr]   --> src/nasbench.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 88 | impl Problem for NasbenchProblem {
[INFO] [stderr]    | -------------------------------- in this `impl` item
[INFO] [stderr] 89 |     type Evaluator = NasbenchEvaluator;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `std::rc::Rc<nasbench::dataset::NasBench>` cannot be sent between threads safely
[INFO] [stderr]    |
[INFO] [stderr]    = help: within `nasbench::NasbenchEvaluator`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<nasbench::dataset::NasBench>`
[INFO] [stderr]    = note: required because it appears within the type `nasbench::NasbenchEvaluator`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `std::rc::Rc<nasbench::dataset::NasBench>` cannot be sent between threads safely
[INFO] [stderr]    --> src/nasbench.rs:130:6
[INFO] [stderr]     |
[INFO] [stderr] 130 | impl Evaluator for NasbenchEvaluator {
[INFO] [stderr]     |      ^^^^^^^^^ `std::rc::Rc<nasbench::dataset::NasBench>` cannot be sent between threads safely
[INFO] [stderr]     |
[INFO] [stderr]     = help: within `nasbench::NasbenchEvaluator`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<nasbench::dataset::NasBench>`
[INFO] [stderr]     = note: required because it appears within the type `nasbench::NasbenchEvaluator`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `kurobako_problems`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0277]: `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>` cannot be sent between threads safely
[INFO] [stderr]   --> src/fcnet.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 28 | impl ProblemRecipe for FcnetProblemRecipe {
[INFO] [stderr]    | ----------------------------------------- in this `impl` item
[INFO] [stderr] 29 |     type Factory = FcnetProblemFactory;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>` cannot be sent between threads safely
[INFO] [stderr]    |
[INFO] [stderr]    = help: within `fcnet::FcnetProblemFactory`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>`
[INFO] [stderr]    = note: required because it appears within the type `fcnet::FcnetProblemFactory`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>` cannot be sent between threads safely
[INFO] [stderr]   --> src/fcnet.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | impl ProblemFactory for FcnetProblemFactory {
[INFO] [stderr]    | ------------------------------------------- in this `impl` item
[INFO] [stderr] 47 |     type Problem = FcnetProblem;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>` cannot be sent between threads safely
[INFO] [stderr]    |
[INFO] [stderr]    = help: within `fcnet::FcnetProblem`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>`
[INFO] [stderr]    = note: required because it appears within the type `fcnet::FcnetProblem`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>` cannot be sent between threads safely
[INFO] [stderr]   --> src/fcnet.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 94 | impl Problem for FcnetProblem {
[INFO] [stderr]    | ----------------------------- in this `impl` item
[INFO] [stderr] 95 |     type Evaluator = FcnetEvaluator;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>` cannot be sent between threads safely
[INFO] [stderr]    |
[INFO] [stderr]    = help: within `fcnet::FcnetEvaluator`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>`
[INFO] [stderr]    = note: required because it appears within the type `fcnet::FcnetEvaluator`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>` cannot be sent between threads safely
[INFO] [stderr]    --> src/fcnet.rs:129:6
[INFO] [stderr]     |
[INFO] [stderr] 129 | impl Evaluator for FcnetEvaluator {
[INFO] [stderr]     |      ^^^^^^^^^ `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>` cannot be sent between threads safely
[INFO] [stderr]     |
[INFO] [stderr]     = help: within `fcnet::FcnetEvaluator`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<std::cell::RefCell<hdf5file::file::Hdf5File>>`
[INFO] [stderr]     = note: required because it appears within the type `fcnet::FcnetEvaluator`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `std::rc::Rc<nasbench::dataset::NasBench>` cannot be sent between threads safely
[INFO] [stderr]   --> src/nasbench.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 40 | impl ProblemRecipe for NasbenchProblemRecipe {
[INFO] [stderr]    | -------------------------------------------- in this `impl` item
[INFO] [stderr] 41 |     type Factory = NasbenchProblemFactory;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `std::rc::Rc<nasbench::dataset::NasBench>` cannot be sent between threads safely
[INFO] [stderr]    |
[INFO] [stderr]    = help: within `nasbench::NasbenchProblemFactory`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<nasbench::dataset::NasBench>`
[INFO] [stderr]    = note: required because it appears within the type `nasbench::NasbenchProblemFactory`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `std::rc::Rc<nasbench::dataset::NasBench>` cannot be sent between threads safely
[INFO] [stderr]   --> src/nasbench.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 58 | impl ProblemFactory for NasbenchProblemFactory {
[INFO] [stderr]    | ---------------------------------------------- in this `impl` item
[INFO] [stderr] 59 |     type Problem = NasbenchProblem;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `std::rc::Rc<nasbench::dataset::NasBench>` cannot be sent between threads safely
[INFO] [stderr]    |
[INFO] [stderr]    = help: within `nasbench::NasbenchProblem`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<nasbench::dataset::NasBench>`
[INFO] [stderr]    = note: required because it appears within the type `nasbench::NasbenchProblem`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `std::rc::Rc<nasbench::dataset::NasBench>` cannot be sent between threads safely
[INFO] [stderr]   --> src/nasbench.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 88 | impl Problem for NasbenchProblem {
[INFO] [stderr]    | -------------------------------- in this `impl` item
[INFO] [stderr] 89 |     type Evaluator = NasbenchEvaluator;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `std::rc::Rc<nasbench::dataset::NasBench>` cannot be sent between threads safely
[INFO] [stderr]    |
[INFO] [stderr]    = help: within `nasbench::NasbenchEvaluator`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<nasbench::dataset::NasBench>`
[INFO] [stderr]    = note: required because it appears within the type `nasbench::NasbenchEvaluator`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `std::rc::Rc<nasbench::dataset::NasBench>` cannot be sent between threads safely
[INFO] [stderr]    --> src/nasbench.rs:130:6
[INFO] [stderr]     |
[INFO] [stderr] 130 | impl Evaluator for NasbenchEvaluator {
[INFO] [stderr]     |      ^^^^^^^^^ `std::rc::Rc<nasbench::dataset::NasBench>` cannot be sent between threads safely
[INFO] [stderr]     |
[INFO] [stderr]     = help: within `nasbench::NasbenchEvaluator`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<nasbench::dataset::NasBench>`
[INFO] [stderr]     = note: required because it appears within the type `nasbench::NasbenchEvaluator`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `kurobako_problems`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "91aa1e87ab2ce8ddc0d42087adc21f6aeac360e4312f4be8f9e1ffcd1dfece47"`
[INFO] running `"docker" "rm" "-f" "91aa1e87ab2ce8ddc0d42087adc21f6aeac360e4312f4be8f9e1ffcd1dfece47"`
[INFO] [stdout] 91aa1e87ab2ce8ddc0d42087adc21f6aeac360e4312f4be8f9e1ffcd1dfece47