[INFO] cloning repository https://github.com/yeet-lang/yeet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yeet-lang/yeet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyeet-lang%2Fyeet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyeet-lang%2Fyeet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bc83d3da303b325cabe20948e151483f17153e6e
[INFO] checking yeet-lang/yeet against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyeet-lang%2Fyeet" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yeet-lang/yeet on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yeet-lang/yeet
[INFO] finished tweaking git repo https://github.com/yeet-lang/yeet
[INFO] tweaked toml for git repo https://github.com/yeet-lang/yeet written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/yeet-lang/yeet already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f2bc102e41ed4e2bd56f37d79d5edd9335bd8298bd27f95047484b9f9ebd97c
[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" "4f2bc102e41ed4e2bd56f37d79d5edd9335bd8298bd27f95047484b9f9ebd97c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f2bc102e41ed4e2bd56f37d79d5edd9335bd8298bd27f95047484b9f9ebd97c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f2bc102e41ed4e2bd56f37d79d5edd9335bd8298bd27f95047484b9f9ebd97c", kill_on_drop: false }`
[INFO] [stdout] 4f2bc102e41ed4e2bd56f37d79d5edd9335bd8298bd27f95047484b9f9ebd97c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68b9374afdf7ece4f354b53d10234f7c3e5bf9f73efda0a903cee003eee8b010
[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" "68b9374afdf7ece4f354b53d10234f7c3e5bf9f73efda0a903cee003eee8b010", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking yeet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `escape`
[INFO] [stdout]    --> src/lexeme.rs:103:26
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let (chunk_kind, escape) = (self.begin_text)(&self.text[start_index..]);
[INFO] [stdout]     |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_escape`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `escape`
[INFO] [stdout]    --> src/lexeme.rs:103:26
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let (chunk_kind, escape) = (self.begin_text)(&self.text[start_index..]);
[INFO] [stdout]     |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_escape`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `items`
[INFO] [stdout]    --> src/c.rs:413:5
[INFO] [stdout]     |
[INFO] [stdout] 413 |     items: Vec<Item<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `items`
[INFO] [stdout]    --> src/c.rs:413:5
[INFO] [stdout]     |
[INFO] [stdout] 413 |     items: Vec<Item<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/lexeme.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut it = yeet::LexemeIterator::new(&file, rs_open, rs_close);
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.98s
[INFO] running `Command { std: "docker" "inspect" "68b9374afdf7ece4f354b53d10234f7c3e5bf9f73efda0a903cee003eee8b010", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68b9374afdf7ece4f354b53d10234f7c3e5bf9f73efda0a903cee003eee8b010", kill_on_drop: false }`
[INFO] [stdout] 68b9374afdf7ece4f354b53d10234f7c3e5bf9f73efda0a903cee003eee8b010