[INFO] crate dipstick 0.7.11 is already in cache
[INFO] checking dipstick-0.7.11 against try#3ae4c050387df9f7fbb379ee90ce8bf05e566870 for pr-70872
[INFO] extracting crate dipstick 0.7.11 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate dipstick 0.7.11 on toolchain 3ae4c050387df9f7fbb379ee90ce8bf05e566870
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate dipstick 0.7.11
[INFO] finished tweaking crates.io crate dipstick 0.7.11
[INFO] tweaked toml for crates.io crate dipstick 0.7.11 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 00c700d9a9cc436b36491776d6446e55eeffd083643cb4b273524d38eccae56a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "00c700d9a9cc436b36491776d6446e55eeffd083643cb4b273524d38eccae56a"`
[INFO] [stderr]    Compiling dipstick v0.7.11 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking minreq v1.4.1
[INFO] [stderr]     Checking atomic_refcell v0.1.6
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]   --> src/core/label.rs:96:23
[INFO] [stderr]    |
[INFO] [stderr] 96 |             let new = { map.borrow().set(key.into(), Arc::new(value.into())) };
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]    --> src/core/label.rs:105:23
[INFO] [stderr]     |
[INFO] [stderr] 105 |             let new = { map.borrow().unset(key) };
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]    --> src/core/label.rs:128:17
[INFO] [stderr]     |
[INFO] [stderr] 128 |         let b = { read_lock!(APP_LABELS).set(key.into(), Arc::new(value.into())) };
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]    --> src/core/label.rs:135:17
[INFO] [stderr]     |
[INFO] [stderr] 135 |         let b = { read_lock!(APP_LABELS).unset(key) };
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/core/proxy.rs:40:13
[INFO] [stderr]    |
[INFO] [stderr] 40 |     target: (AtomicRefCell<(InputMetric, usize)>),
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]   --> src/cache/cache_in.rs:93:22
[INFO] [stderr]    |
[INFO] [stderr] 93 |         let lookup = { write_lock!(self.cache).get(&name).cloned() };
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]   --> src/cache/cache_out.rs:96:22
[INFO] [stderr]    |
[INFO] [stderr] 96 |         let lookup = { write_lock!(self.cache).get(&name).cloned() };
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]   --> src/core/label.rs:96:23
[INFO] [stderr]    |
[INFO] [stderr] 96 |             let new = { map.borrow().set(key.into(), Arc::new(value.into())) };
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]    --> src/core/label.rs:105:23
[INFO] [stderr]     |
[INFO] [stderr] 105 |             let new = { map.borrow().unset(key) };
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]    --> src/core/label.rs:128:17
[INFO] [stderr]     |
[INFO] [stderr] 128 |         let b = { read_lock!(APP_LABELS).set(key.into(), Arc::new(value.into())) };
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]    --> src/core/label.rs:135:17
[INFO] [stderr]     |
[INFO] [stderr] 135 |         let b = { read_lock!(APP_LABELS).unset(key) };
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/core/proxy.rs:40:13
[INFO] [stderr]    |
[INFO] [stderr] 40 |     target: (AtomicRefCell<(InputMetric, usize)>),
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]   --> src/cache/cache_in.rs:93:22
[INFO] [stderr]    |
[INFO] [stderr] 93 |         let lookup = { write_lock!(self.cache).get(&name).cloned() };
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]   --> src/cache/cache_out.rs:96:22
[INFO] [stderr]    |
[INFO] [stderr] 96 |         let lookup = { write_lock!(self.cache).get(&name).cloned() };
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.67s
[INFO] running `"docker" "inspect" "00c700d9a9cc436b36491776d6446e55eeffd083643cb4b273524d38eccae56a"`
[INFO] running `"docker" "rm" "-f" "00c700d9a9cc436b36491776d6446e55eeffd083643cb4b273524d38eccae56a"`
[INFO] [stdout] 00c700d9a9cc436b36491776d6446e55eeffd083643cb4b273524d38eccae56a