[INFO] fetching crate core-json-derive 0.4.1...
[INFO] testing core-json-derive-0.4.1 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate core-json-derive 0.4.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate core-json-derive 0.4.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate core-json-derive 0.4.1
[INFO] tweaked toml for crates.io crate core-json-derive 0.4.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate core-json-derive 0.4.1 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate core-json-derive 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4ef83caee72acec203db20038de88d814a404a35a634a256187705ea57c08429
[INFO] running `Command { std: "docker" "start" "4ef83caee72acec203db20038de88d814a404a35a634a256187705ea57c08429", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ef83caee72acec203db20038de88d814a404a35a634a256187705ea57c08429", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4ef83caee72acec203db20038de88d814a404a35a634a256187705ea57c08429" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ef83caee72acec203db20038de88d814a404a35a634a256187705ea57c08429", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4ef83caee72acec203db20038de88d814a404a35a634a256187705ea57c08429" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling core-json-derive v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "4ef83caee72acec203db20038de88d814a404a35a634a256187705ea57c08429", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4ef83caee72acec203db20038de88d814a404a35a634a256187705ea57c08429" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling core-json-derive v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `core_json_traits`
[INFO] [stdout]  --> tests/tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core_json_traits::{JsonF64, JsonDeserialize, JsonSerialize};
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `core_json_traits`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 1 - use core_json_traits::{JsonF64, JsonDeserialize, JsonSerialize};
[INFO] [stdout] 1 + use core_json_derive::{JsonF64, JsonDeserialize, JsonSerialize};
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core_json_traits`
[INFO] [stdout]   --> tests/tests.rs:45:7
[INFO] [stdout]    |
[INFO] [stdout] 45 |   use core_json_traits::*;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `core_json_traits`
[INFO] [stdout]    |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 45 -   use core_json_traits::*;
[INFO] [stdout] 45 +   use core_json_derive::*;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `core-json-derive` (test "tests") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "4ef83caee72acec203db20038de88d814a404a35a634a256187705ea57c08429", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ef83caee72acec203db20038de88d814a404a35a634a256187705ea57c08429", kill_on_drop: false }`
[INFO] [stdout] 4ef83caee72acec203db20038de88d814a404a35a634a256187705ea57c08429
