[INFO] fetching crate lru2 0.1.0... [INFO] testing lru2-0.1.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799 [INFO] extracting crate lru2 0.1.0 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate lru2 0.1.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-2/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+62efba8a050c64249dab942951bb28f710208bc8" "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] 849ea23a00a8c8561467e8069616c042a26d3fdf1bed5f07032277656309ebf7 [INFO] running `Command { std: "docker" "start" "-a" "849ea23a00a8c8561467e8069616c042a26d3fdf1bed5f07032277656309ebf7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "849ea23a00a8c8561467e8069616c042a26d3fdf1bed5f07032277656309ebf7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "849ea23a00a8c8561467e8069616c042a26d3fdf1bed5f07032277656309ebf7", kill_on_drop: false }` [INFO] [stdout] 849ea23a00a8c8561467e8069616c042a26d3fdf1bed5f07032277656309ebf7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e754e462cf219ab7ffa8d48eb9eb733e63f274e7e4728ec18822a26875d52699 [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" "e754e462cf219ab7ffa8d48eb9eb733e63f274e7e4728ec18822a26875d52699", 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] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.30s [INFO] running `Command { std: "docker" "inspect" "e754e462cf219ab7ffa8d48eb9eb733e63f274e7e4728ec18822a26875d52699", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e754e462cf219ab7ffa8d48eb9eb733e63f274e7e4728ec18822a26875d52699", kill_on_drop: false }` [INFO] [stdout] e754e462cf219ab7ffa8d48eb9eb733e63f274e7e4728ec18822a26875d52699 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+62efba8a050c64249dab942951bb28f710208bc8" "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] e63f77dc977fc4f705ba31799050085a55d4307b77fc132051a87a0240bb1b70 [INFO] running `Command { std: "docker" "start" "-a" "e63f77dc977fc4f705ba31799050085a55d4307b77fc132051a87a0240bb1b70", 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 1.26s [INFO] running `Command { std: "docker" "inspect" "e63f77dc977fc4f705ba31799050085a55d4307b77fc132051a87a0240bb1b70", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e63f77dc977fc4f705ba31799050085a55d4307b77fc132051a87a0240bb1b70", kill_on_drop: false }` [INFO] [stdout] e63f77dc977fc4f705ba31799050085a55d4307b77fc132051a87a0240bb1b70 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 4e9a935d70826071250733d73a35f5a3e382c3296c90aaba9f94e2e20a89aa57 [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" "4e9a935d70826071250733d73a35f5a3e382c3296c90aaba9f94e2e20a89aa57", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stdout] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stdout] running 28 tests [INFO] [stderr] --> src/cache/mod.rs:50:21 [INFO] [stdout] test cache::initialize_registers ... ok [INFO] [stderr] | [INFO] [stdout] test cache::test::get_empty ... ok [INFO] [stderr] 50 | let mut cache: &mut Register = unsafe{ &mut **pcache }; [INFO] [stdout] test cache::test::get_one ... ok [INFO] [stderr] | ----^^^^^ [INFO] [stdout] test cache::test::has_empty ... ok [INFO] [stderr] | | [INFO] [stdout] test register::initialize_2 ... ok [INFO] [stderr] | help: remove this `mut` [INFO] [stdout] test register::initialize_100 ... ok [INFO] [stderr] | [INFO] [stdout] test cache::test::has_one ... ok [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] test cache::test::integration ... ok [INFO] [stderr] [INFO] [stdout] test cache::test::set_again ... ok [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stdout] test cache::bench::random_u32 ... ok [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 0.03s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/lru2-74a4dafd560885bc) [INFO] [stdout] test register::test::get_one ... ok [INFO] [stdout] test cache::bench::has_empty ... ok [INFO] [stdout] test cache::bench::best_cache_hit ... ok [INFO] [stdout] test register::test::set_many ... ok [INFO] [stdout] test register::test::set_one ... ok [INFO] [stdout] test register::test::set_again ... ok [INFO] [stdout] test cache::bench::random_u32_constrained_to_500 ... ok [INFO] [stdout] test cache::bench::random_u32_constrained_to_50 ... ok [INFO] [stdout] test cache::test::set_one ... ok [INFO] [stdout] test register::test::reset ... ok [INFO] [stdout] test register::test::get_empty ... ok [INFO] [stdout] test register::test::get_many ... ok [INFO] [stdout] test cache::bench::random_u32_constrained_to_400 ... ok [INFO] [stdout] test register::initialize_with_1 - should panic ... ok [INFO] [stdout] test register::initialize_with_0 - 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 1.86s [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" "4e9a935d70826071250733d73a35f5a3e382c3296c90aaba9f94e2e20a89aa57", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4e9a935d70826071250733d73a35f5a3e382c3296c90aaba9f94e2e20a89aa57", kill_on_drop: false }` [INFO] [stdout] 4e9a935d70826071250733d73a35f5a3e382c3296c90aaba9f94e2e20a89aa57