[INFO] cloning repository https://github.com/PinkNoize/framebuffer-manager
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PinkNoize/framebuffer-manager" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPinkNoize%2Fframebuffer-manager", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPinkNoize%2Fframebuffer-manager'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 159a14bb258988bb8ba4611029a0d341e6f5ea4a
[INFO] checking PinkNoize/framebuffer-manager against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPinkNoize%2Fframebuffer-manager" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PinkNoize/framebuffer-manager on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/PinkNoize/framebuffer-manager
[INFO] finished tweaking git repo https://github.com/PinkNoize/framebuffer-manager
[INFO] tweaked toml for git repo https://github.com/PinkNoize/framebuffer-manager written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/PinkNoize/framebuffer-manager already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fs2 v0.4.3
[INFO] [stderr]   Downloaded memmap v0.5.2
[INFO] [stderr]   Downloaded libc v0.2.58
[INFO] [stderr]   Downloaded framebuffer v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 17665b745ed0a51d4bcd59daf48eb3a89856d0d6493e59a38fb99ec691c2338d
[INFO] running `Command { std: "docker" "start" "-a" "17665b745ed0a51d4bcd59daf48eb3a89856d0d6493e59a38fb99ec691c2338d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17665b745ed0a51d4bcd59daf48eb3a89856d0d6493e59a38fb99ec691c2338d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17665b745ed0a51d4bcd59daf48eb3a89856d0d6493e59a38fb99ec691c2338d", kill_on_drop: false }`
[INFO] [stdout] 17665b745ed0a51d4bcd59daf48eb3a89856d0d6493e59a38fb99ec691c2338d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b45b97b4c19bba9a339a4d1fb01f64802cf2b66e6855ac4fb711426e541139e5
[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" "b45b97b4c19bba9a339a4d1fb01f64802cf2b66e6855ac4fb711426e541139e5", kill_on_drop: false }`
[INFO] [stderr]     Checking memmap v0.5.2
[INFO] [stderr]     Checking framebuffer v0.1.8
[INFO] [stderr]     Checking framebuffer-manager v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `win`
[INFO] [stdout]    --> src/lib.rs:261:7
[INFO] [stdout]     |
[INFO] [stdout] 261 |         let mut win = &mut fm.windows[0];
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_win`
[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/lib.rs:261:7
[INFO] [stdout]     |
[INFO] [stdout] 261 |         let mut win = &mut fm.windows[0];
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.62s
[INFO] running `Command { std: "docker" "inspect" "b45b97b4c19bba9a339a4d1fb01f64802cf2b66e6855ac4fb711426e541139e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b45b97b4c19bba9a339a4d1fb01f64802cf2b66e6855ac4fb711426e541139e5", kill_on_drop: false }`
[INFO] [stdout] b45b97b4c19bba9a339a4d1fb01f64802cf2b66e6855ac4fb711426e541139e5