[INFO] fetching crate dex 0.4.0...
[INFO] checking dex-0.4.0 against beta for pr-78714
[INFO] extracting crate dex 0.4.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate dex 0.4.0 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 dex 0.4.0
[INFO] finished tweaking crates.io crate dex 0.4.0
[INFO] tweaked toml for crates.io crate dex 0.4.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate dex 0.4.0 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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 971e5dbba89f8881d6b584138b4de1210c14dc57655db006b90dc84c7edf4876
[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" "971e5dbba89f8881d6b584138b4de1210c14dc57655db006b90dc84c7edf4876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "971e5dbba89f8881d6b584138b4de1210c14dc57655db006b90dc84c7edf4876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "971e5dbba89f8881d6b584138b4de1210c14dc57655db006b90dc84c7edf4876", kill_on_drop: false }`
[INFO] [stdout] 971e5dbba89f8881d6b584138b4de1210c14dc57655db006b90dc84c7edf4876
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] ba3ee1f3c691cb369281f253543d622bb9d0d812dced29de817ed455a60f4878
[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" "ba3ee1f3c691cb369281f253543d622bb9d0d812dced29de817ed455a60f4878", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]     Checking hashbrown v0.5.0
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking getrandom v0.1.13
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking lru v0.1.17
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling getset v0.0.9
[INFO] [stderr]     Checking dex v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/dex.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |         (self.data_off..self.data_off + self.data_size)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/dex.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |         (self.data_off..self.data_off + self.data_size)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.28s
[INFO] running `Command { std: "docker" "inspect" "ba3ee1f3c691cb369281f253543d622bb9d0d812dced29de817ed455a60f4878", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba3ee1f3c691cb369281f253543d622bb9d0d812dced29de817ed455a60f4878", kill_on_drop: false }`
[INFO] [stdout] ba3ee1f3c691cb369281f253543d622bb9d0d812dced29de817ed455a60f4878