[INFO] fetching crate simple-slab 0.3.2...
[INFO] checking simple-slab-0.3.2 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate simple-slab 0.3.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate simple-slab 0.3.2 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simple-slab 0.3.2
[INFO] finished tweaking crates.io crate simple-slab 0.3.2
[INFO] tweaked toml for crates.io crate simple-slab 0.3.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] 68ee1ebe427cb7f1155b569c2f92cb56de942bab739bd69655c9a28d8ec87540
[INFO] running `Command { std: "docker" "start" "-a" "68ee1ebe427cb7f1155b569c2f92cb56de942bab739bd69655c9a28d8ec87540", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68ee1ebe427cb7f1155b569c2f92cb56de942bab739bd69655c9a28d8ec87540", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68ee1ebe427cb7f1155b569c2f92cb56de942bab739bd69655c9a28d8ec87540", kill_on_drop: false }`
[INFO] [stdout] 68ee1ebe427cb7f1155b569c2f92cb56de942bab739bd69655c9a28d8ec87540
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2ffa590fb1107a2ed2f644751d54e612354703c07f6f0242201a457f6e5c65b
[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" "b2ffa590fb1107a2ed2f644751d54e612354703c07f6f0242201a457f6e5c65b", kill_on_drop: false }`
[INFO] [stderr]     Checking simple-slab v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/lib.rs:45:26
[INFO] [stdout]    |
[INFO] [stdout] 45 |             libc::malloc((mem::size_of::<T>() * capacity)) as *mut T
[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 function argument
[INFO] [stdout]    --> src/lib.rs:137:27
[INFO] [stdout]     |
[INFO] [stdout] 137 |                           (mem::size_of::<T>() * new_capacity)) as *mut T
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/lib.rs:45:26
[INFO] [stdout]    |
[INFO] [stdout] 45 |             libc::malloc((mem::size_of::<T>() * capacity)) as *mut T
[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 function argument
[INFO] [stdout]    --> src/lib.rs:137:27
[INFO] [stdout]     |
[INFO] [stdout] 137 |                           (mem::size_of::<T>() * new_capacity)) as *mut T
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "b2ffa590fb1107a2ed2f644751d54e612354703c07f6f0242201a457f6e5c65b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2ffa590fb1107a2ed2f644751d54e612354703c07f6f0242201a457f6e5c65b", kill_on_drop: false }`
[INFO] [stdout] b2ffa590fb1107a2ed2f644751d54e612354703c07f6f0242201a457f6e5c65b
