[INFO] cloning repository https://github.com/kkweon/questionnaire
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kkweon/questionnaire" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkkweon%2Fquestionnaire", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkkweon%2Fquestionnaire'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 262338c0ccfca4fa92126f05280bd18d839fecfc
[INFO] building kkweon/questionnaire against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkkweon%2Fquestionnaire" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kkweon/questionnaire on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kkweon/questionnaire
[INFO] finished tweaking git repo https://github.com/kkweon/questionnaire
[INFO] tweaked toml for git repo https://github.com/kkweon/questionnaire written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/kkweon/questionnaire already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97c0f28156ce3784e067bf7b86123483fc2ddc5d48cf0103337ee89b73858070
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "97c0f28156ce3784e067bf7b86123483fc2ddc5d48cf0103337ee89b73858070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97c0f28156ce3784e067bf7b86123483fc2ddc5d48cf0103337ee89b73858070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97c0f28156ce3784e067bf7b86123483fc2ddc5d48cf0103337ee89b73858070", kill_on_drop: false }`
[INFO] [stdout] 97c0f28156ce3784e067bf7b86123483fc2ddc5d48cf0103337ee89b73858070
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cbd642aa89b7ec774bc9c4d9f296fa794dc927fcb4698f4cf5659d6a26c60a23
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cbd642aa89b7ec774bc9c4d9f296fa794dc927fcb4698f4cf5659d6a26c60a23", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures v0.1.25
[INFO] [stderr]    Compiling questionnaire v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib.rs:6:38
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn prompt(question: &str) -> Box<Future<Item = String, Error = Error>> {
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = String, Error = Error>`
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/lib.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![deny(warnings)]
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   = note: `#[deny(bare_trait_objects)]` implied by `#[deny(warnings)]`
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `questionnaire`
[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 `Command { std: "docker" "inspect" "cbd642aa89b7ec774bc9c4d9f296fa794dc927fcb4698f4cf5659d6a26c60a23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbd642aa89b7ec774bc9c4d9f296fa794dc927fcb4698f4cf5659d6a26c60a23", kill_on_drop: false }`
[INFO] [stdout] cbd642aa89b7ec774bc9c4d9f296fa794dc927fcb4698f4cf5659d6a26c60a23
