[INFO] fetching crate sentry-slog 0.23.0...
[INFO] testing sentry-slog-0.23.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate sentry-slog 0.23.0 into /workspace/builds/worker-59/source
[INFO] validating manifest of crates.io crate sentry-slog 0.23.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sentry-slog 0.23.0
[INFO] finished tweaking crates.io crate sentry-slog 0.23.0
[INFO] tweaked toml for crates.io crate sentry-slog 0.23.0 written to /workspace/builds/worker-59/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21cd95b7f1d64c29fef69c1de1191f7ecd9c7c6c1b401fcba3074ff0ef260631
[INFO] running `Command { std: "docker" "start" "-a" "21cd95b7f1d64c29fef69c1de1191f7ecd9c7c6c1b401fcba3074ff0ef260631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21cd95b7f1d64c29fef69c1de1191f7ecd9c7c6c1b401fcba3074ff0ef260631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21cd95b7f1d64c29fef69c1de1191f7ecd9c7c6c1b401fcba3074ff0ef260631", kill_on_drop: false }`
[INFO] [stdout] 21cd95b7f1d64c29fef69c1de1191f7ecd9c7c6c1b401fcba3074ff0ef260631
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db85ddd057ce1e4c3e0d232c8563cb9d5d1bec1cb915bde9aa9332df6660b84c
[INFO] running `Command { std: "docker" "start" "-a" "db85ddd057ce1e4c3e0d232c8563cb9d5d1bec1cb915bde9aa9332df6660b84c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling erased-serde v0.3.16
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling debugid v0.7.2
[INFO] [stderr]    Compiling sentry-types v0.23.0
[INFO] [stderr]    Compiling sentry-core v0.23.0
[INFO] [stderr]    Compiling sentry-slog v0.23.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.87s
[INFO] running `Command { std: "docker" "inspect" "db85ddd057ce1e4c3e0d232c8563cb9d5d1bec1cb915bde9aa9332df6660b84c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db85ddd057ce1e4c3e0d232c8563cb9d5d1bec1cb915bde9aa9332df6660b84c", kill_on_drop: false }`
[INFO] [stdout] db85ddd057ce1e4c3e0d232c8563cb9d5d1bec1cb915bde9aa9332df6660b84c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a2311856417bc033efe12c1a48727671e04d739ba55b378aa84b7e2f6ab6013
[INFO] running `Command { std: "docker" "start" "-a" "1a2311856417bc033efe12c1a48727671e04d739ba55b378aa84b7e2f6ab6013", kill_on_drop: false }`
[INFO] [stderr]    Compiling sentry-slog v0.23.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `serde`
[INFO] [stdout]    --> src/converters.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     use serde::Serialize;
[INFO] [stdout]     |         ^^^^^ use of undeclared crate or module `serde`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Serialize`
[INFO] [stdout]    --> src/converters.rs:111:14
[INFO] [stdout]     |
[INFO] [stdout] 111 |     #[derive(Serialize, Clone)]
[INFO] [stdout]     |              ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `erased_serde`
[INFO] [stdout]    --> src/converters.rs:129:36
[INFO] [stdout]     |
[INFO] [stdout] 129 |         fn as_serde(&self) -> &dyn erased_serde::Serialize {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^ use of undeclared crate or module `erased_serde`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sentry-slog` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "1a2311856417bc033efe12c1a48727671e04d739ba55b378aa84b7e2f6ab6013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a2311856417bc033efe12c1a48727671e04d739ba55b378aa84b7e2f6ab6013", kill_on_drop: false }`
[INFO] [stdout] 1a2311856417bc033efe12c1a48727671e04d739ba55b378aa84b7e2f6ab6013