[INFO] fetching crate pegasus 0.3.0...
[INFO] checking pegasus-0.3.0 against beta for pr-78714
[INFO] extracting crate pegasus 0.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate pegasus 0.3.0 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 pegasus 0.3.0
[INFO] finished tweaking crates.io crate pegasus 0.3.0
[INFO] tweaked toml for crates.io crate pegasus 0.3.0 written to /workspace/builds/worker-8/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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d464bef5c663496fdb5269e3d9fd2f010aed5450c3f6a4d1fb3897acf9b65bdb
[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" "d464bef5c663496fdb5269e3d9fd2f010aed5450c3f6a4d1fb3897acf9b65bdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d464bef5c663496fdb5269e3d9fd2f010aed5450c3f6a4d1fb3897acf9b65bdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d464bef5c663496fdb5269e3d9fd2f010aed5450c3f6a4d1fb3897acf9b65bdb", kill_on_drop: false }`
[INFO] [stdout] d464bef5c663496fdb5269e3d9fd2f010aed5450c3f6a4d1fb3897acf9b65bdb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] a80d5326379c5110e1bec5c051115cd5b03c1235a38025f8032fb8aa344ecf03
[INFO] running `Command { std: "docker" "start" "-a" "a80d5326379c5110e1bec5c051115cd5b03c1235a38025f8032fb8aa344ecf03", kill_on_drop: false }`
[INFO] [stderr]     Checking bitflags v0.6.0
[INFO] [stderr]     Checking atom v0.3.6
[INFO] [stderr]     Checking tuple_utils v0.2.0
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]    Compiling wayland-scanner v0.7.8
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking memmap v0.4.0
[INFO] [stderr]    Compiling glutin v0.7.4
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]     Checking draw_state v0.6.0
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking pulse v0.5.3
[INFO] [stderr]     Checking specs v0.7.1
[INFO] [stderr]     Checking gfx_core v0.6.1
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]    Compiling wayland-client v0.7.8
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking dlib v0.3.1
[INFO] [stderr]     Checking wayland-sys v0.7.8
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking wayland-window v0.4.4
[INFO] [stderr]     Checking wayland-kbd v0.6.3
[INFO] [stderr]     Checking winit v0.5.11
[INFO] [stderr]     Checking gfx v0.14.1
[INFO] [stderr]     Checking gfx_device_gl v0.13.1
[INFO] [stderr]     Checking pegasus v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking gfx_window_glutin v0.14.0
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/sample.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let mut w = plan.mut_world();
[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 21.20s
[INFO] running `Command { std: "docker" "inspect" "a80d5326379c5110e1bec5c051115cd5b03c1235a38025f8032fb8aa344ecf03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a80d5326379c5110e1bec5c051115cd5b03c1235a38025f8032fb8aa344ecf03", kill_on_drop: false }`
[INFO] [stdout] a80d5326379c5110e1bec5c051115cd5b03c1235a38025f8032fb8aa344ecf03