[INFO] fetching crate squish 1.0.0...
[INFO] checking squish-1.0.0 against beta for pr-78714
[INFO] extracting crate squish 1.0.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate squish 1.0.0 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 crates.io crate squish 1.0.0
[INFO] finished tweaking crates.io crate squish 1.0.0
[INFO] tweaked toml for crates.io crate squish 1.0.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] f9ed00381748547b9422dc3859fede3d60acdcc9b930853eeafc22430912e348
[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" "f9ed00381748547b9422dc3859fede3d60acdcc9b930853eeafc22430912e348", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9ed00381748547b9422dc3859fede3d60acdcc9b930853eeafc22430912e348", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9ed00381748547b9422dc3859fede3d60acdcc9b930853eeafc22430912e348", kill_on_drop: false }`
[INFO] [stdout] f9ed00381748547b9422dc3859fede3d60acdcc9b930853eeafc22430912e348
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 13e73fd61d6ab94e29a0cfdff86c60570a3c99951e120c8c8db2a4a6272e7b96
[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" "13e73fd61d6ab94e29a0cfdff86c60570a3c99951e120c8c8db2a4a6272e7b96", kill_on_drop: false }`
[INFO] [stderr]     Checking squish v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/alpha.rs:148:22
[INFO] [stdout]     |
[INFO] [stdout] 148 |                 x @ 2...5 => 7 - x,
[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/alpha.rs:148:22
[INFO] [stdout]     |
[INFO] [stdout] 148 |                 x @ 2...5 => 7 - x,
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/alpha.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |         let mut tmp = &mut buf[2 + i * 3..5 + i * 3];
[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/alpha.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |         let mut tmp = &mut buf[2 + i * 3..5 + i * 3];
[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/colourblock.rs:85:14
[INFO] [stdout]    |
[INFO] [stdout] 85 |         for (mut remapped, index) in remapped.iter_mut().zip(indices) {
[INFO] [stdout]    |              ----^^^^^^^^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/colourblock.rs:85:14
[INFO] [stdout]    |
[INFO] [stdout] 85 |         for (mut remapped, index) in remapped.iter_mut().zip(indices) {
[INFO] [stdout]    |              ----^^^^^^^^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              help: remove this `mut`
[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 0.96s
[INFO] running `Command { std: "docker" "inspect" "13e73fd61d6ab94e29a0cfdff86c60570a3c99951e120c8c8db2a4a6272e7b96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13e73fd61d6ab94e29a0cfdff86c60570a3c99951e120c8c8db2a4a6272e7b96", kill_on_drop: false }`
[INFO] [stdout] 13e73fd61d6ab94e29a0cfdff86c60570a3c99951e120c8c8db2a4a6272e7b96