[INFO] cloning repository https://github.com/fneddy/rat12
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fneddy/rat12" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffneddy%2Frat12", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffneddy%2Frat12'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dcfdb60f9b742311a3916386f6e43e2d900c3de5
[INFO] checking fneddy/rat12 against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffneddy%2Frat12" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fneddy/rat12 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/fneddy/rat12
[INFO] finished tweaking git repo https://github.com/fneddy/rat12
[INFO] tweaked toml for git repo https://github.com/fneddy/rat12 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/fneddy/rat12 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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 42e2debdbb4f4b91ea4ef36ac93083449a83e9d97cb1e6d74d1e70fd515ae29a
[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" "42e2debdbb4f4b91ea4ef36ac93083449a83e9d97cb1e6d74d1e70fd515ae29a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42e2debdbb4f4b91ea4ef36ac93083449a83e9d97cb1e6d74d1e70fd515ae29a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42e2debdbb4f4b91ea4ef36ac93083449a83e9d97cb1e6d74d1e70fd515ae29a", kill_on_drop: false }`
[INFO] [stdout] 42e2debdbb4f4b91ea4ef36ac93083449a83e9d97cb1e6d74d1e70fd515ae29a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] a7f7f5e326c8a36a6902db13e4584b8911085d2b817118af3e53ac9e966513b8
[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" "a7f7f5e326c8a36a6902db13e4584b8911085d2b817118af3e53ac9e966513b8", kill_on_drop: false }`
[INFO] [stderr]     Checking rat12 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/fat_boot_sector.rs:61:25
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 v @ 0xF9...0xFF => MediaDescriptor::FloppyPartition(v),
[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] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/fat_boot_sector.rs:61:25
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 v @ 0xF9...0xFF => MediaDescriptor::FloppyPartition(v),
[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] warning: unused variable: `buf`
[INFO] [stdout]   --> src/cluster.rs:60:25
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/cluster.rs:60:25
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cluster.rs:31:16
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn new(mut descriptor: Arc<RwLock<T>>,
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/cluster.rs:31:16
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn new(mut descriptor: Arc<RwLock<T>>,
[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "a7f7f5e326c8a36a6902db13e4584b8911085d2b817118af3e53ac9e966513b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7f7f5e326c8a36a6902db13e4584b8911085d2b817118af3e53ac9e966513b8", kill_on_drop: false }`
[INFO] [stdout] a7f7f5e326c8a36a6902db13e4584b8911085d2b817118af3e53ac9e966513b8