[INFO] updating cached repository lfont/rust_web_demo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lfont/rust_web_demo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lfont/rust_web_demo" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/lfont/rust_web_demo"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/lfont/rust_web_demo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lfont/rust_web_demo" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/lfont/rust_web_demo"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/lfont/rust_web_demo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9ee620ce35eef79390b33a5023a5a652910ecf7b
[INFO] sha for GitHub repo lfont/rust_web_demo: 9ee620ce35eef79390b33a5023a5a652910ecf7b
[INFO] validating manifest of lfont/rust_web_demo on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lfont/rust_web_demo on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lfont/rust_web_demo
[INFO] finished frobbing lfont/rust_web_demo
[INFO] frobbed toml for lfont/rust_web_demo written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/lfont/rust_web_demo/Cargo.toml
[INFO] started frobbing lfont/rust_web_demo
[INFO] finished frobbing lfont/rust_web_demo
[INFO] frobbed toml for lfont/rust_web_demo written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/lfont/rust_web_demo/Cargo.toml
[INFO] crate lfont/rust_web_demo has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating git repository `https://github.com/kmcallister/string-cache`
[INFO] [stderr] error: no matching package named `string_cache_macros` found
[INFO] [stderr] location searched: https://github.com/kmcallister/string-cache?rev=dev
[INFO] [stderr] required by package `html5ever v0.0.0 (https://github.com/kmcallister/html5ever.git#55bc3d13)`
[INFO] [stderr]     ... which is depended on by `rust_demo v0.0.1 (/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/lfont/rust_web_demo)`
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed