[INFO] updating cached repository kkweon/questionnaire
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kkweon/questionnaire
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kkweon/questionnaire" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/kkweon/questionnaire"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/kkweon/questionnaire'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kkweon/questionnaire" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/kkweon/questionnaire"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/kkweon/questionnaire'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 262338c0ccfca4fa92126f05280bd18d839fecfc
[INFO] sha for GitHub repo kkweon/questionnaire: 262338c0ccfca4fa92126f05280bd18d839fecfc
[INFO] validating manifest of kkweon/questionnaire on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kkweon/questionnaire on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kkweon/questionnaire
[INFO] finished frobbing kkweon/questionnaire
[INFO] frobbed toml for kkweon/questionnaire written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/kkweon/questionnaire/Cargo.toml
[INFO] started frobbing kkweon/questionnaire
[INFO] finished frobbing kkweon/questionnaire
[INFO] frobbed toml for kkweon/questionnaire written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/kkweon/questionnaire/Cargo.toml
[INFO] crate kkweon/questionnaire already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking kkweon/questionnaire against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-2/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/kkweon/questionnaire:/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f3ab71d7fce6cd84db95f4c0840cca9a8a831ad57ac5d4647aff7b94c69bf346
[INFO] running `"docker" "start" "-a" "f3ab71d7fce6cd84db95f4c0840cca9a8a831ad57ac5d4647aff7b94c69bf346"`
[INFO] [stderr]     Checking questionnaire v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:6:38
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn prompt(question: &str) -> Box<Future<Item = String, Error = Error>> {
[INFO] [stderr]   |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = String, Error = Error>`
[INFO] [stderr]   |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]  --> src/lib.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![deny(warnings)]
[INFO] [stderr]   |         ^^^^^^^^
[INFO] [stderr]   = note: `#[deny(bare_trait_objects)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `questionnaire`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:6:38
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn prompt(question: &str) -> Box<Future<Item = String, Error = Error>> {
[INFO] [stderr]   |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = String, Error = Error>`
[INFO] [stderr]   |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]  --> src/lib.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![deny(warnings)]
[INFO] [stderr]   |         ^^^^^^^^
[INFO] [stderr]   = note: `#[deny(bare_trait_objects)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `questionnaire`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f3ab71d7fce6cd84db95f4c0840cca9a8a831ad57ac5d4647aff7b94c69bf346"`
[INFO] running `"docker" "rm" "-f" "f3ab71d7fce6cd84db95f4c0840cca9a8a831ad57ac5d4647aff7b94c69bf346"`
[INFO] [stdout] f3ab71d7fce6cd84db95f4c0840cca9a8a831ad57ac5d4647aff7b94c69bf346