[INFO] fetching crate thincollections 0.5.3...
[INFO] checking thincollections-0.5.3 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate thincollections 0.5.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate thincollections 0.5.3 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate thincollections 0.5.3
[INFO] finished tweaking crates.io crate thincollections 0.5.3
[INFO] tweaked toml for crates.io crate thincollections 0.5.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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] a6c260e8b56900bf10c468e7161b0bfbb06f55d74488c386808dbf75262980e5
[INFO] running `Command { std: "docker" "start" "-a" "a6c260e8b56900bf10c468e7161b0bfbb06f55d74488c386808dbf75262980e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6c260e8b56900bf10c468e7161b0bfbb06f55d74488c386808dbf75262980e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6c260e8b56900bf10c468e7161b0bfbb06f55d74488c386808dbf75262980e5", kill_on_drop: false }`
[INFO] [stdout] a6c260e8b56900bf10c468e7161b0bfbb06f55d74488c386808dbf75262980e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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] a704cd71d0aad24df095b500f939002a040d80a67cef439fa164dcf88f9c37cd
[INFO] running `Command { std: "docker" "start" "-a" "a704cd71d0aad24df095b500f939002a040d80a67cef439fa164dcf88f9c37cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking thincollections v0.5.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/thin_sentinel.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     #[inline(always)]
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/thin_sentinel.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     #[inline(always)]
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/thin_hasher.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 |     SEED.compare_and_swap(x as usize, y as usize, Ordering::Release); // we don't care if it fails
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking xoshiro v0.0.4
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/thin_vec.rs:1244:29
[INFO] [stdout]      |
[INFO] [stdout] 1244 |     pub fn into_boxed_slice(mut self) -> Box<[T]> {
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stdout] warning: unused import: `super::ThinSentinel`
[INFO] [stdout]     --> src/thin_map.rs:2135:9
[INFO] [stdout]      |
[INFO] [stdout] 2135 |     use super::ThinSentinel;
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/thin_sentinel.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     #[inline(always)]
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/thin_sentinel.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     #[inline(always)]
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/thin_hasher.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 |     SEED.compare_and_swap(x as usize, y as usize, Ordering::Release); // we don't care if it fails
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/thin_vec.rs:1244:29
[INFO] [stdout]      |
[INFO] [stdout] 1244 |     pub fn into_boxed_slice(mut self) -> Box<[T]> {
[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: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.93s
[INFO] running `Command { std: "docker" "inspect" "a704cd71d0aad24df095b500f939002a040d80a67cef439fa164dcf88f9c37cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a704cd71d0aad24df095b500f939002a040d80a67cef439fa164dcf88f9c37cd", kill_on_drop: false }`
[INFO] [stdout] a704cd71d0aad24df095b500f939002a040d80a67cef439fa164dcf88f9c37cd