[INFO] fetching crate atom 0.3.6...
[INFO] checking atom-0.3.6 against try#81275a1445c7502a974118e0c69b795ab60be991 for pr-80243
[INFO] extracting crate atom 0.3.6 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate atom 0.3.6 on toolchain 81275a1445c7502a974118e0c69b795ab60be991
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate atom 0.3.6
[INFO] finished tweaking crates.io crate atom 0.3.6
[INFO] tweaked toml for crates.io crate atom 0.3.6 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate atom 0.3.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7b1e5310922e5a91e85da1fbddb43badc74b200e303f63769c259d577ff613b
[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" "b7b1e5310922e5a91e85da1fbddb43badc74b200e303f63769c259d577ff613b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7b1e5310922e5a91e85da1fbddb43badc74b200e303f63769c259d577ff613b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7b1e5310922e5a91e85da1fbddb43badc74b200e303f63769c259d577ff613b", kill_on_drop: false }`
[INFO] [stdout] b7b1e5310922e5a91e85da1fbddb43badc74b200e303f63769c259d577ff613b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15ba058859594c394126e83f49633b83d143b92b2d1c9060d7153c9ea37f6e63
[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" "15ba058859594c394126e83f49633b83d143b92b2d1c9060d7153c9ea37f6e63", kill_on_drop: false }`
[INFO] [stderr]     Checking atom v0.3.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> examples/fifo.rs:43:14
[INFO] [stdout]    |
[INFO] [stdout] 43 |     for _ in (0..THREADS) {
[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 `for` iterator expression
[INFO] [stdout]   --> examples/fifo.rs:49:22
[INFO] [stdout]    |
[INFO] [stdout] 49 |             for _ in (0..10_000) {
[INFO] [stdout]    |                      ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "15ba058859594c394126e83f49633b83d143b92b2d1c9060d7153c9ea37f6e63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15ba058859594c394126e83f49633b83d143b92b2d1c9060d7153c9ea37f6e63", kill_on_drop: false }`
[INFO] [stdout] 15ba058859594c394126e83f49633b83d143b92b2d1c9060d7153c9ea37f6e63