[INFO] updating cached repository sjeohp/rust-chain
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sjeohp/rust-chain
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sjeohp/rust-chain" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/sjeohp/rust-chain"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/sjeohp/rust-chain'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sjeohp/rust-chain" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/sjeohp/rust-chain"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/sjeohp/rust-chain'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 11f41327188ffae4ee69e8a60d4a197d1e201581
[INFO] sha for GitHub repo sjeohp/rust-chain: 11f41327188ffae4ee69e8a60d4a197d1e201581
[INFO] validating manifest of sjeohp/rust-chain on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sjeohp/rust-chain on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sjeohp/rust-chain
[INFO] finished frobbing sjeohp/rust-chain
[INFO] frobbed toml for sjeohp/rust-chain written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/sjeohp/rust-chain/Cargo.toml
[INFO] started frobbing sjeohp/rust-chain
[INFO] finished frobbing sjeohp/rust-chain
[INFO] frobbed toml for sjeohp/rust-chain written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/sjeohp/rust-chain/Cargo.toml
[INFO] crate sjeohp/rust-chain already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking sjeohp/rust-chain against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-5/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/sjeohp/rust-chain:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2ccf4db22ba692ee66371a7e66201de37be8c4966b4e8ca189dbb2d81c296356
[INFO] running `"docker" "start" "-a" "2ccf4db22ba692ee66371a7e66201de37be8c4966b4e8ca189dbb2d81c296356"`
[INFO] [stderr]     Checking libc v0.2.16
[INFO] [stderr]     Checking md5 v0.2.1
[INFO] [stderr]    Compiling ring v0.4.3
[INFO] [stderr]     Checking untrusted v0.3.1
[INFO] [stderr]     Checking serde v0.8.20
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr] error[E0277]: `&&std::vec::Vec<std::string::String>` is not an iterator
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/ring-0.4.3/build.rs:206:14
[INFO] [stderr]     |
[INFO] [stderr] 206 |             .args(&args)
[INFO] [stderr]     |              ^^^^ `&&std::vec::Vec<std::string::String>` is not an iterator
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::iter::Iterator` is not implemented for `&&std::vec::Vec<std::string::String>`
[INFO] [stderr]     = note: required because of the requirements on the impl of `std::iter::IntoIterator` for `&&std::vec::Vec<std::string::String>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `ring`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "2ccf4db22ba692ee66371a7e66201de37be8c4966b4e8ca189dbb2d81c296356"`
[INFO] running `"docker" "rm" "-f" "2ccf4db22ba692ee66371a7e66201de37be8c4966b4e8ca189dbb2d81c296356"`
[INFO] [stdout] 2ccf4db22ba692ee66371a7e66201de37be8c4966b4e8ca189dbb2d81c296356