[INFO] cloning repository https://github.com/e-oz/ssl_test
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/e-oz/ssl_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fe-oz%2Fssl_test"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fe-oz%2Fssl_test'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2f8502eee281f09b3b1b5614d062d47007da1254
[INFO] checking e-oz/ssl_test against master#783139bd8fc3b94fac9a1bf81bba2c506e8221b6 for pr-72644
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fe-oz%2Fssl_test" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/e-oz/ssl_test on toolchain 783139bd8fc3b94fac9a1bf81bba2c506e8221b6
[INFO] running `"/workspace/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/e-oz/ssl_test
[INFO] finished tweaking git repo https://github.com/e-oz/ssl_test
[INFO] tweaked toml for git repo https://github.com/e-oz/ssl_test written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/e-oz/ssl_test already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fa2c4ff60dcaebf637a6ede0c7c9bda28cebcf91eaacf49b7d44ed3309c33a64
[INFO] running `"docker" "start" "-a" "fa2c4ff60dcaebf637a6ede0c7c9bda28cebcf91eaacf49b7d44ed3309c33a64"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking libc v0.2.18
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling pkg-config v0.3.8
[INFO] [stderr]    Compiling rustc-serialize v0.3.22
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking matches v0.1.4
[INFO] [stderr]    Compiling gcc v0.3.40
[INFO] [stderr]     Checking unicode-normalization v0.1.3
[INFO] [stderr]     Checking unicode-xid v0.0.3
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]     Checking lazy_static v0.2.2
[INFO] [stderr]    Compiling serde v0.8.20
[INFO] [stderr]    Compiling itoa v0.1.1
[INFO] [stderr]    Compiling dtoa v0.2.2
[INFO] [stderr]    Compiling num-traits v0.1.36
[INFO] [stderr]    Compiling openssl v0.9.3
[INFO] [stderr]     Checking quote v0.3.10
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking httparse v1.2.1
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking traitobject v0.0.1
[INFO] [stderr]    Compiling ring v0.6.0
[INFO] [stderr]     Checking untrusted v0.3.2
[INFO] [stderr]     Checking md5 v0.2.1
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]     Checking syntex_pos v0.50.0
[INFO] [stderr]     Checking xml-rs v0.1.26
[INFO] [stderr]     Checking unicode-bidi v0.2.4
[INFO] [stderr] error[E0277]: `&&std::vec::Vec<std::string::String>` is not an iterator
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ring-0.6.0/build.rs:221:15
[INFO] [stderr]     |
[INFO] [stderr] 221 |         .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] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "fa2c4ff60dcaebf637a6ede0c7c9bda28cebcf91eaacf49b7d44ed3309c33a64"`
[INFO] running `"docker" "rm" "-f" "fa2c4ff60dcaebf637a6ede0c7c9bda28cebcf91eaacf49b7d44ed3309c33a64"`
[INFO] [stdout] fa2c4ff60dcaebf637a6ede0c7c9bda28cebcf91eaacf49b7d44ed3309c33a64