[INFO] fetching crate algebloat 0.0.13...
[INFO] extracting crate algebloat 0.0.13 into work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/reg/algebloat/0.0.13
[INFO] extracting crate algebloat 0.0.13 into work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/reg/algebloat/0.0.13
[INFO] validating manifest of algebloat-0.0.13 on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of algebloat-0.0.13 on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing algebloat-0.0.13
[INFO] removed 0 missing examples
[INFO] finished frobbing algebloat-0.0.13
[INFO] frobbed toml for algebloat-0.0.13 written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/reg/algebloat/0.0.13/Cargo.toml
[INFO] started frobbing algebloat-0.0.13
[INFO] removed 0 missing examples
[INFO] finished frobbing algebloat-0.0.13
[INFO] frobbed toml for algebloat-0.0.13 written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/reg/algebloat/0.0.13/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr] error: failed to select a version for the requirement `chrono = "= 0.3.1"`
[INFO] [stderr]   candidate versions found which didn't match: 0.4.6, 0.4.5, 0.4.4, ...
[INFO] [stderr]   location searched: crates.io index
[INFO] [stderr] required by package `algebloat v0.0.13 (/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/reg/algebloat/0.0.13)`
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` failed