[INFO] crate slog-config 0.4.0 is already in cache
[INFO] extracting crate slog-config 0.4.0 into work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/slog-config/0.4.0
[INFO] extracting crate slog-config 0.4.0 into work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/slog-config/0.4.0
[INFO] validating manifest of slog-config-0.4.0 on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of slog-config-0.4.0 on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing slog-config-0.4.0
[INFO] finished frobbing slog-config-0.4.0
[INFO] frobbed toml for slog-config-0.4.0 written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/slog-config/0.4.0/Cargo.toml
[INFO] started frobbing slog-config-0.4.0
[INFO] finished frobbing slog-config-0.4.0
[INFO] frobbed toml for slog-config-0.4.0 written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/slog-config/0.4.0/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr] error: failed to select a version for `toml`.
[INFO] [stderr]     ... required by package `slog-config v0.4.0 (/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/slog-config/0.4.0)`
[INFO] [stderr] versions that meet the requirements `^0.4` are: 0.4.10, 0.4.9, 0.4.8, 0.4.7, 0.4.6, 0.4.5, 0.4.4, 0.4.3, 0.4.2, 0.4.1, 0.4.0
[INFO] [stderr] 
[INFO] [stderr] the package `slog-config` depends on `toml`, with features: `serde` but `toml` does not have these features.
[INFO] [stderr]  It has a required dependency with that name, but only optional dependencies can be used as features.
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `toml` which could resolve this conflict
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` failed