[INFO] updating cached repository https://github.com/Floppy/ruby-version-badger
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/Floppy/ruby-version-badger
[INFO] [stderr]  - [deleted]         (none)     -> dependabot/cargo/pin-project-lite-0.1.6
[INFO] [stderr]  * [new branch]      dependabot/cargo/bumpalo-3.4.0 -> dependabot/cargo/bumpalo-3.4.0
[INFO] [stderr]  * [new branch]      dependabot/cargo/cc-1.0.54 -> dependabot/cargo/cc-1.0.54
[INFO] [stderr]  * [new branch]      dependabot/cargo/futures-core-0.3.5 -> dependabot/cargo/futures-core-0.3.5
[INFO] [stderr]  * [new branch]      dependabot/cargo/pin-project-lite-0.1.7 -> dependabot/cargo/pin-project-lite-0.1.7
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c23be12f3d81ab6af281d32e2ba36a612fe8a152
[INFO] testing Floppy/ruby-version-badger against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFloppy%2Fruby-version-badger" "/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/Floppy/ruby-version-badger on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Floppy/ruby-version-badger
[INFO] finished tweaking git repo https://github.com/Floppy/ruby-version-badger
[INFO] tweaked toml for git repo https://github.com/Floppy/ruby-version-badger written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Floppy/ruby-version-badger already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: unused manifest key: package.target
[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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 33ac0c8b0f5ffe40c7c0cfa9c7f0efc3c2a179d6e72fe426edd57bef2dde1f30
[INFO] running `"docker" "start" "-a" "33ac0c8b0f5ffe40c7c0cfa9c7f0efc3c2a179d6e72fe426edd57bef2dde1f30"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused manifest key: package.target
[INFO] [stderr]    Compiling log v0.4.10
[INFO] [stderr]    Compiling futures-task v0.3.4
[INFO] [stderr]    Compiling openssl-sys v0.9.56
[INFO] [stderr]    Compiling url v2.1.0
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling tokio v0.2.20
[INFO] [stderr]    Compiling iron v0.6.1
[INFO] [stderr]    Compiling mount v0.4.0
[INFO] [stderr]    Compiling router v0.6.0
[INFO] [stderr]    Compiling staticfile v0.5.0
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-tls v0.3.0
[INFO] [stderr]    Compiling h2 v0.2.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.17
[INFO] [stderr]    Compiling pin-project v0.4.17
[INFO] [stderr]    Compiling hyper v0.13.4
[INFO] [stderr]    Compiling hyper-tls v0.4.1
[INFO] [stderr]    Compiling reqwest v0.10.4
[INFO] [stderr]    Compiling ruby-version-badger v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0277]: the `?` operator can only be applied to values that implement `std::ops::Try`
[INFO] [stderr]  --> src/github.rs:5:16
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let resp = reqwest::get(url.as_str())?;
[INFO] [stderr]   |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `impl std::future::Future`
[INFO] [stderr]   |
[INFO] [stderr]   = help: the trait `std::ops::Try` is not implemented for `impl std::future::Future`
[INFO] [stderr]   = note: required by `std::ops::Try::into_result`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the `?` operator can only be applied to values that implement `std::ops::Try`
[INFO] [stderr]   --> src/github.rs:11:16
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let file = reqwest::get(url.as_str())?.text()?;
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `impl std::future::Future`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::ops::Try` is not implemented for `impl std::future::Future`
[INFO] [stderr]    = note: required by `std::ops::Try::into_result`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `ruby-version-badger`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "33ac0c8b0f5ffe40c7c0cfa9c7f0efc3c2a179d6e72fe426edd57bef2dde1f30"`
[INFO] running `"docker" "rm" "-f" "33ac0c8b0f5ffe40c7c0cfa9c7f0efc3c2a179d6e72fe426edd57bef2dde1f30"`
[INFO] [stdout] 33ac0c8b0f5ffe40c7c0cfa9c7f0efc3c2a179d6e72fe426edd57bef2dde1f30