[INFO] fetching crate lru2 0.1.0... [INFO] testing lru2-0.1.0 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799 [INFO] extracting crate lru2 0.1.0 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate lru2 0.1.0 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate lru2 0.1.0 [INFO] finished tweaking crates.io crate lru2 0.1.0 [INFO] tweaked toml for crates.io crate lru2 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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] 23c9b9fb84f676fed77b6838473b60d4c1220e793a5e4e2ca2742e92d91673ce [INFO] running `Command { std: "docker" "start" "-a" "23c9b9fb84f676fed77b6838473b60d4c1220e793a5e4e2ca2742e92d91673ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "23c9b9fb84f676fed77b6838473b60d4c1220e793a5e4e2ca2742e92d91673ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "23c9b9fb84f676fed77b6838473b60d4c1220e793a5e4e2ca2742e92d91673ce", kill_on_drop: false }` [INFO] [stdout] 23c9b9fb84f676fed77b6838473b60d4c1220e793a5e4e2ca2742e92d91673ce [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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6c60b015c8dcbaf322108b61969e72a8dec55da2d31c393086cff92d87eee137 [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" "6c60b015c8dcbaf322108b61969e72a8dec55da2d31c393086cff92d87eee137", kill_on_drop: false }` [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling lru2 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/cache/mod.rs:50:21 [INFO] [stdout] | [INFO] [stdout] 50 | let mut cache: &mut Register = unsafe{ &mut **pcache }; [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: variable does not need to be mutable [INFO] [stdout] --> src/cache/mod.rs:57:13 [INFO] [stdout] | [INFO] [stdout] 57 | let mut cache: &mut Register = unsafe{ &mut **self.register.get(upper_key).unwrap() }; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.31s [INFO] running `Command { std: "docker" "inspect" "6c60b015c8dcbaf322108b61969e72a8dec55da2d31c393086cff92d87eee137", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6c60b015c8dcbaf322108b61969e72a8dec55da2d31c393086cff92d87eee137", kill_on_drop: false }` [INFO] [stdout] 6c60b015c8dcbaf322108b61969e72a8dec55da2d31c393086cff92d87eee137 [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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--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] e63be426eddecdac3d82bcc7751693f3a20348a9c740fc25a020c090a7346022 [INFO] running `Command { std: "docker" "start" "-a" "e63be426eddecdac3d82bcc7751693f3a20348a9c740fc25a020c090a7346022", kill_on_drop: false }` [INFO] [stderr] Compiling lru2 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/cache/mod.rs:50:21 [INFO] [stdout] | [INFO] [stdout] 50 | let mut cache: &mut Register = unsafe{ &mut **pcache }; [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: variable does not need to be mutable [INFO] [stdout] --> src/cache/mod.rs:57:13 [INFO] [stdout] | [INFO] [stdout] 57 | let mut cache: &mut Register = unsafe{ &mut **self.register.get(upper_key).unwrap() }; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/cache/mod.rs:50:21 [INFO] [stdout] | [INFO] [stdout] 50 | let mut cache: &mut Register = unsafe{ &mut **pcache }; [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: variable does not need to be mutable [INFO] [stdout] --> src/cache/mod.rs:57:13 [INFO] [stdout] | [INFO] [stdout] 57 | let mut cache: &mut Register = unsafe{ &mut **self.register.get(upper_key).unwrap() }; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.12s [INFO] running `Command { std: "docker" "inspect" "e63be426eddecdac3d82bcc7751693f3a20348a9c740fc25a020c090a7346022", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e63be426eddecdac3d82bcc7751693f3a20348a9c740fc25a020c090a7346022", kill_on_drop: false }` [INFO] [stdout] e63be426eddecdac3d82bcc7751693f3a20348a9c740fc25a020c090a7346022 [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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 5ff6097488825e22df7429b84289915b0938acd1baf4507aea37db55b11241dd [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" "5ff6097488825e22df7429b84289915b0938acd1baf4507aea37db55b11241dd", kill_on_drop: false }` [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/cache/mod.rs:50:21 [INFO] [stderr] | [INFO] [stderr] 50 | let mut cache: &mut Register = unsafe{ &mut **pcache }; [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/cache/mod.rs:57:13 [INFO] [stderr] | [INFO] [stderr] 57 | let mut cache: &mut Register = unsafe{ &mut **self.register.get(upper_key).unwrap() }; [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: `lru2` (lib) generated 2 warnings [INFO] [stderr] warning: `lru2` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/lru2-74a4dafd560885bc) [INFO] [stdout] running 28 tests [INFO] [stdout] test cache::test::has_empty ... ok [INFO] [stdout] test cache::test::has_one ... ok [INFO] [stdout] test cache::test::integration ... ok [INFO] [stdout] test cache::test::get_one ... ok [INFO] [stdout] test cache::test::get_empty ... ok [INFO] [stdout] test cache::test::set_again ... ok [INFO] [stdout] test cache::initialize_registers ... ok [INFO] [stdout] test cache::test::set_one ... ok [INFO] [stdout] test register::initialize_100 ... ok [INFO] [stdout] test register::initialize_2 ... ok [INFO] [stdout] test register::test::get_one ... ok [INFO] [stdout] test cache::bench::random_u32_constrained_to_400 ... ok [INFO] [stdout] test cache::bench::random_u32 ... ok [INFO] [stdout] test register::test::get_empty ... ok [INFO] [stdout] test cache::bench::best_cache_hit ... ok [INFO] [stdout] test cache::bench::has_empty ... ok [INFO] [stdout] test cache::bench::random_u32_constrained_to_50 ... ok [INFO] [stdout] test register::test::get_many ... ok [INFO] [stdout] test cache::bench::random_u32_constrained_to_500 ... ok [INFO] [stdout] test register::test::reset ... ok [INFO] [stdout] test register::test::set_many ... ok [INFO] [stdout] test register::test::set_again ... ok [INFO] [stdout] test register::test::set_one ... ok [INFO] [stdout] test register::initialize_with_0 - should panic ... ok [INFO] [stdout] test register::initialize_with_1 - should panic ... ok [INFO] [stdout] test cache::bench::random_u32_constrained_to_50_get ... ok [INFO] [stdout] test cache::bench::random_u32_constrained_to_500_get ... ok [INFO] [stdout] test cache::bench::random_u32_constrained_to_400_get ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 28 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.62s [INFO] [stdout] [INFO] [stderr] Doc-tests lru2 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "5ff6097488825e22df7429b84289915b0938acd1baf4507aea37db55b11241dd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5ff6097488825e22df7429b84289915b0938acd1baf4507aea37db55b11241dd", kill_on_drop: false }` [INFO] [stdout] 5ff6097488825e22df7429b84289915b0938acd1baf4507aea37db55b11241dd