[INFO] updating cached repository https://github.com/uzushino/violet
[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] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9540ca269f0c1abb34c6f61204225827ef1b4536
[INFO] checking uzushino/violet against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuzushino%2Fviolet" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/uzushino/violet on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/uzushino/violet
[INFO] finished tweaking git repo https://github.com/uzushino/violet
[INFO] tweaked toml for git repo https://github.com/uzushino/violet written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/uzushino/violet already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=forbid" "-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" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1e45627f8d72dd5ba0ae6fcfa2eac1fe3a985f13d810668e474834732e3b1534
[INFO] running `"docker" "start" "-a" "1e45627f8d72dd5ba0ae6fcfa2eac1fe3a985f13d810668e474834732e3b1534"`
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[INFO] [stderr]     Checking violet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `super::Markdown`
[INFO] [stderr]    --> src/markdown.rs:156:9
[INFO] [stderr]     |
[INFO] [stderr] 156 |     use super::Markdown;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `up`
[INFO] [stderr]  --> src/cursor.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn up<W>(out: &mut W, n: u64)
[INFO] [stderr]   |        ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `down`
[INFO] [stderr]   --> src/cursor.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn down<W>(out: &mut W, n: u64)
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `horizon`
[INFO] [stderr]   --> src/cursor.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub fn horizon<W>(out: &mut W, n: u64)
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `clear_line`
[INFO] [stderr]   --> src/cursor.rs:72:8
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn clear_line<W>(out: &mut W)
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:110:33
[INFO] [stderr]     |
[INFO] [stderr] 110 | ...                   write!(f.stdout, "{}", termion::scroll::Up(1));
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:113:33
[INFO] [stderr]     |
[INFO] [stderr] 113 | ...                   write!(f.stdout, "{}", termion::scroll::Down(1));
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `up`
[INFO] [stderr]  --> src/cursor.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn up<W>(out: &mut W, n: u64)
[INFO] [stderr]   |        ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `down`
[INFO] [stderr]   --> src/cursor.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn down<W>(out: &mut W, n: u64)
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `horizon`
[INFO] [stderr]   --> src/cursor.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub fn horizon<W>(out: &mut W, n: u64)
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `clear_line`
[INFO] [stderr]   --> src/cursor.rs:72:8
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn clear_line<W>(out: &mut W)
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:110:33
[INFO] [stderr]     |
[INFO] [stderr] 110 | ...                   write!(f.stdout, "{}", termion::scroll::Up(1));
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:113:33
[INFO] [stderr]     |
[INFO] [stderr] 113 | ...                   write!(f.stdout, "{}", termion::scroll::Down(1));
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 17s
[INFO] running `"docker" "inspect" "1e45627f8d72dd5ba0ae6fcfa2eac1fe3a985f13d810668e474834732e3b1534"`
[INFO] running `"docker" "rm" "-f" "1e45627f8d72dd5ba0ae6fcfa2eac1fe3a985f13d810668e474834732e3b1534"`
[INFO] [stdout] 1e45627f8d72dd5ba0ae6fcfa2eac1fe3a985f13d810668e474834732e3b1534