[INFO] cloning repository https://github.com/pymongo/rust_first
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pymongo/rust_first" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpymongo%2Frust_first", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d7d84c92622353fbb19be81dcf45a493460be928
[INFO] checking pymongo/rust_first against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpymongo%2Frust_first" "/workspace/builds/worker-0/source", kill_on_drop: false }`
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[INFO] validating manifest of git repo https://github.com/pymongo/rust_first on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
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[INFO] finished tweaking git repo https://github.com/pymongo/rust_first
[INFO] tweaked toml for git repo https://github.com/pymongo/rust_first written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "36a28ea8e9b1b1f263c31e0ea8fce16ec4d92298a3834f9411956b880575bab0", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `std::collections::BinaryHeap`
[INFO] [stdout]   --> examples/gzip.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     use std::collections::BinaryHeap;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> benches/bigdecimal_vs_rust_decimal.rs:180:60
[INFO] [stdout]     |
[INFO] [stdout] 180 |         decimal.with_scale(round_digits) - BigDecimal::new(BigInt::from(1), round_digits)
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^ expected struct `num_bigint::bigint::BigInt`, found struct `num_bigint::BigInt`
[INFO] [stdout]     |
[INFO] [stdout]     = note: perhaps two different versions of crate `num_bigint` are being used?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `(u32,)` doesn't implement `std::fmt::Display`
[INFO] [stdout]  --> examples/actix_web_path_segement_params.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 |     println!("path.0 = {}", path.0);
[INFO] [stdout]   |                             ^^^^^^ `(u32,)` cannot be formatted with the default formatter
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `std::fmt::Display` is not implemented for `(u32,)`
[INFO] [stdout]   = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]   = note: required by `std::fmt::Display::fmt`
[INFO] [stdout]   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_learn`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `once_cell`
[INFO] [stdout]  --> benches/get_decimal_zero.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use once_cell::sync::OnceCell;
[INFO] [stdout]   |     ^^^^^^^^^ use of undeclared type or module `once_cell`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> benches/bigdecimal_vs_rust_decimal.rs:182:60
[INFO] [stdout]     |
[INFO] [stdout] 182 |         decimal.with_scale(round_digits) + BigDecimal::new(BigInt::from(1), round_digits)
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^ expected struct `num_bigint::bigint::BigInt`, found struct `num_bigint::BigInt`
[INFO] [stdout]     |
[INFO] [stdout]     = note: perhaps two different versions of crate `num_bigint` are being used?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `OnceCell` in this scope
[INFO] [stdout]  --> benches/get_decimal_zero.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | static ZERO: OnceCell<BigDecimal> = OnceCell::new();
[INFO] [stdout]   |              ^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]   |
[INFO] [stdout] 5 | use core::lazy::OnceCell;
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::lazy::OnceCell;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `OnceCell`
[INFO] [stdout]  --> benches/get_decimal_zero.rs:8:37
[INFO] [stdout]   |
[INFO] [stdout] 8 | static ZERO: OnceCell<BigDecimal> = OnceCell::new();
[INFO] [stdout]   |                                     ^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]   |
[INFO] [stdout] 5 | use core::lazy::OnceCell;
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::lazy::OnceCell;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `serde_repr`
[INFO] [stdout]  --> benches/deserialize_string_enum_u8_bool.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_repr::{Deserialize_repr, Serialize_repr};
[INFO] [stdout]   |     ^^^^^^^^^^ use of undeclared type or module `serde_repr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Serialize_repr`
[INFO] [stdout]   --> benches/deserialize_string_enum_u8_bool.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[derive(Serialize_repr, Deserialize_repr, PartialEq)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Deserialize_repr`
[INFO] [stdout]   --> benches/deserialize_string_enum_u8_bool.rs:22:26
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[derive(Serialize_repr, Deserialize_repr, PartialEq)]
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Serialize_repr`
[INFO] [stdout]   --> benches/deserialize_string_enum_u8_bool.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 | #[derive(Serialize_repr, Deserialize_repr, PartialEq)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Deserialize_repr`
[INFO] [stdout]   --> benches/deserialize_string_enum_u8_bool.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 | #[derive(Serialize_repr, Deserialize_repr, PartialEq)]
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `EnumU8: _::_serde::Serialize` is not satisfied
[INFO] [stdout]   --> benches/deserialize_string_enum_u8_bool.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     data: EnumU8,
[INFO] [stdout]    |     ^^^^^^^^^^^^ the trait `_::_serde::Serialize` is not implemented for `EnumU8`
[INFO] [stdout]    |
[INFO] [stdout]    = note: required by `_::_serde::ser::SerializeStruct::serialize_field`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `EnumU8: _::_serde::Deserialize<'_>` is not satisfied
[INFO] [stdout]   --> benches/deserialize_string_enum_u8_bool.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     data: EnumU8,
[INFO] [stdout]    |     ^^^^^^^^^^^^ the trait `_::_serde::Deserialize<'_>` is not implemented for `EnumU8`
[INFO] [stdout]    |
[INFO] [stdout]    = note: required by `_::_serde::de::SeqAccess::next_element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `EnumU8: _::_serde::Deserialize<'_>` is not satisfied
[INFO] [stdout]   --> benches/deserialize_string_enum_u8_bool.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     data: EnumU8,
[INFO] [stdout]    |     ^^^^^^^^^^^^ the trait `_::_serde::Deserialize<'_>` is not implemented for `EnumU8`
[INFO] [stdout]    |
[INFO] [stdout]    = note: required by `_::_serde::de::MapAccess::next_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `EnumU8: _::_serde::Serialize` is not satisfied
[INFO] [stdout]     --> benches/deserialize_string_enum_u8_bool.rs:53:42
[INFO] [stdout]      |
[INFO] [stdout] 53   |         assert_eq!(serde_json::to_string(&form.data).unwrap(), "0");
[INFO] [stdout]      |                                          ^^^^^^^^^^ the trait `_::_serde::Serialize` is not implemented for `EnumU8`
[INFO] [stdout]      | 
[INFO] [stdout]     ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_json-1.0.57/src/ser.rs:2221:17
[INFO] [stdout]      |
[INFO] [stdout] 2221 |     T: ?Sized + Serialize,
[INFO] [stdout]      |                 --------- required by this bound in `serde_json::to_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "17b1fb23afc804e5e1625b5653b6909907b9a49a2bfe26200ec4157e1da58d99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17b1fb23afc804e5e1625b5653b6909907b9a49a2bfe26200ec4157e1da58d99", kill_on_drop: false }`
[INFO] [stdout] 17b1fb23afc804e5e1625b5653b6909907b9a49a2bfe26200ec4157e1da58d99