[INFO] updating cached repository euclio/travis-cargo-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/euclio/travis-cargo-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/euclio/travis-cargo-rust" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/euclio/travis-cargo-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/euclio/travis-cargo-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/euclio/travis-cargo-rust" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/euclio/travis-cargo-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/euclio/travis-cargo-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b7e66fd9122ff0e6f8e44bec93cab03b23225d73
[INFO] sha for GitHub repo euclio/travis-cargo-rust: b7e66fd9122ff0e6f8e44bec93cab03b23225d73
[INFO] validating manifest of euclio/travis-cargo-rust on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of euclio/travis-cargo-rust on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing euclio/travis-cargo-rust
[INFO] finished frobbing euclio/travis-cargo-rust
[INFO] frobbed toml for euclio/travis-cargo-rust written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/euclio/travis-cargo-rust/Cargo.toml
[INFO] started frobbing euclio/travis-cargo-rust
[INFO] finished frobbing euclio/travis-cargo-rust
[INFO] frobbed toml for euclio/travis-cargo-rust written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/euclio/travis-cargo-rust/Cargo.toml
[INFO] crate euclio/travis-cargo-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/euclio/travis-cargo-rust/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking euclio/travis-cargo-rust against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-7/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/euclio/travis-cargo-rust:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 73990cece8e8648d8db78d64ae2ab0a3db05554c884cbc418727aa229123acbc
[INFO] running `"docker" "start" "-a" "73990cece8e8648d8db78d64ae2ab0a3db05554c884cbc418727aa229123acbc"`
[INFO] [stderr]     Checking regex-syntax v0.1.3
[INFO] [stderr]     Checking aho-corasick v0.2.2
[INFO] [stderr]     Checking regex v0.1.38
[INFO] [stderr]     Checking docopt v0.6.86
[INFO] [stderr]     Checking travis-cargo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0277]: `&&[std::string::String]` is not an iterator
[INFO] [stderr]    --> src/coverage.rs:209:70
[INFO] [stderr]     |
[INFO] [stderr] 209 |     let output = utils::run_output(Command::new("cargo").arg("test").args(&test_args));
[INFO] [stderr]     |                                                                      ^^^^ `&&[std::string::String]` is not an iterator
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::iter::Iterator` is not implemented for `&&[std::string::String]`
[INFO] [stderr]     = note: required because of the requirements on the impl of `std::iter::IntoIterator` for `&&[std::string::String]`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `&&[std::string::String]` is not an iterator
[INFO] [stderr]    --> src/coverage.rs:209:70
[INFO] [stderr]     |
[INFO] [stderr] 209 |     let output = utils::run_output(Command::new("cargo").arg("test").args(&test_args));
[INFO] [stderr]     |                                                                      ^^^^ `&&[std::string::String]` is not an iterator
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::iter::Iterator` is not implemented for `&&[std::string::String]`
[INFO] [stderr]     = note: required because of the requirements on the impl of `std::iter::IntoIterator` for `&&[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: 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 `travis-cargo`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `travis-cargo`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "73990cece8e8648d8db78d64ae2ab0a3db05554c884cbc418727aa229123acbc"`
[INFO] running `"docker" "rm" "-f" "73990cece8e8648d8db78d64ae2ab0a3db05554c884cbc418727aa229123acbc"`
[INFO] [stdout] 73990cece8e8648d8db78d64ae2ab0a3db05554c884cbc418727aa229123acbc