[INFO] cloning repository https://github.com/utkarshkukreti/pipette
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/utkarshkukreti/pipette" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Futkarshkukreti%2Fpipette", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Futkarshkukreti%2Fpipette'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 868323ee9c6776157b798cd7582493020f963027
[INFO] checking utkarshkukreti/pipette against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Futkarshkukreti%2Fpipette" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/utkarshkukreti/pipette on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/utkarshkukreti/pipette
[INFO] finished tweaking git repo https://github.com/utkarshkukreti/pipette
[INFO] tweaked toml for git repo https://github.com/utkarshkukreti/pipette written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/utkarshkukreti/pipette already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9946af9985e3ae39f1bbb8c6f2201dc10f378a766eb56d4120e5e035d349e7d3
[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" "9946af9985e3ae39f1bbb8c6f2201dc10f378a766eb56d4120e5e035d349e7d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9946af9985e3ae39f1bbb8c6f2201dc10f378a766eb56d4120e5e035d349e7d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9946af9985e3ae39f1bbb8c6f2201dc10f378a766eb56d4120e5e035d349e7d3", kill_on_drop: false }`
[INFO] [stdout] 9946af9985e3ae39f1bbb8c6f2201dc10f378a766eb56d4120e5e035d349e7d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 817b1a4b4b0d8931e67cdc88ed3582949d1911e8135dfd757578047883f0c1ed
[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" "817b1a4b4b0d8931e67cdc88ed3582949d1911e8135dfd757578047883f0c1ed", kill_on_drop: false }`
[INFO] [stderr]     Checking pipette v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `Chars` in module `io`
[INFO] [stdout]  --> src/reader.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     inner: io::Chars<R>
[INFO] [stdout]   |                ^^^^^ not found in `io`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::str::Chars;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stdout]   --> src/reader.rs:28:54
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn read(&mut self) -> Option<Result<Key, io::CharsError>> {
[INFO] [stdout]    |                                                      ^^^^^^^^^^ not found in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/view.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         try!(write!(writer, "\x1b[?25l"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/view.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         try!(write!(writer, "\r\x1b[K> {}", prompt));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/view.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             try!(write!(writer, "\n\r\x1b[K"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/view.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 try!(write!(writer, "\x1b[37;41m"))
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/view.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |             try!(write!(writer, "{}", candidate.borrow()));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/view.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 try!(write!(writer, "\x1b[0m"))
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/view.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         try!(write!(writer, "\x1b[{}A\x1b[{}G",
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/view.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         try!(write!(writer, "\x1b[?25h"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/reader.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     0 ... 31 => Other,
[INFO] [stdout]    |                       ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Chars` in module `io`
[INFO] [stdout]  --> src/reader.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     inner: io::Chars<R>
[INFO] [stdout]   |                ^^^^^ not found in `io`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::str::Chars;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stdout]   --> src/reader.rs:28:54
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn read(&mut self) -> Option<Result<Key, io::CharsError>> {
[INFO] [stdout]    |                                                      ^^^^^^^^^^ not found in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/view.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         try!(write!(writer, "\x1b[?25l"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/view.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         try!(write!(writer, "\r\x1b[K> {}", prompt));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/view.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             try!(write!(writer, "\n\r\x1b[K"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/view.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 try!(write!(writer, "\x1b[37;41m"))
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/view.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |             try!(write!(writer, "{}", candidate.borrow()));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/view.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 try!(write!(writer, "\x1b[0m"))
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/view.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         try!(write!(writer, "\x1b[{}A\x1b[{}G",
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/view.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         try!(write!(writer, "\x1b[?25h"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/reader.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     0 ... 31 => Other,
[INFO] [stdout]    |                       ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0392]: parameter `R` is never used
[INFO] [stdout]  --> src/pipette.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Pipette<R: io::Read, W: io::Write> {
[INFO] [stdout]   |                    ^ unused parameter
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing `R`, referring to it in a field, or using a marker such as `PhantomData`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0392, E0412.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0392`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pipette`
[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] [stdout] error[E0392]: parameter `R` is never used
[INFO] [stdout]  --> src/pipette.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Pipette<R: io::Read, W: io::Write> {
[INFO] [stdout]   |                    ^ unused parameter
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing `R`, referring to it in a field, or using a marker such as `PhantomData`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0392, E0412.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0392`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "817b1a4b4b0d8931e67cdc88ed3582949d1911e8135dfd757578047883f0c1ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "817b1a4b4b0d8931e67cdc88ed3582949d1911e8135dfd757578047883f0c1ed", kill_on_drop: false }`
[INFO] [stdout] 817b1a4b4b0d8931e67cdc88ed3582949d1911e8135dfd757578047883f0c1ed