[INFO] fetching crate shared_arena 0.8.2... [INFO] checking shared_arena-0.8.2 against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015 [INFO] extracting crate shared_arena 0.8.2 into /workspace/builds/worker-1/source [INFO] validating manifest of crates.io crate shared_arena 0.8.2 on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate shared_arena 0.8.2 [INFO] finished tweaking crates.io crate shared_arena 0.8.2 [INFO] tweaked toml for crates.io crate shared_arena 0.8.2 written to /workspace/builds/worker-1/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 382dc8b742fc6fbe3387e4849cdb224f0bb7fb558399c3c216a33c1d45e2ac77 [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" "382dc8b742fc6fbe3387e4849cdb224f0bb7fb558399c3c216a33c1d45e2ac77", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "382dc8b742fc6fbe3387e4849cdb224f0bb7fb558399c3c216a33c1d45e2ac77", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "382dc8b742fc6fbe3387e4849cdb224f0bb7fb558399c3c216a33c1d45e2ac77", kill_on_drop: false }` [INFO] [stdout] 382dc8b742fc6fbe3387e4849cdb224f0bb7fb558399c3c216a33c1d45e2ac77 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "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] b0f01f699844d11f7f9c829a99e3b43b4433f71b3e97d0da15881d092d559a74 [INFO] running `Command { std: "docker" "start" "-a" "b0f01f699844d11f7f9c829a99e3b43b4433f71b3e97d0da15881d092d559a74", kill_on_drop: false }` [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling serde_json v1.0.58 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking static_assertions v1.1.0 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling rayon v1.4.1 [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking plotters v0.2.15 [INFO] [stderr] Compiling syn v1.0.42 [INFO] [stderr] Checking shared_arena v0.8.2 (/opt/rustwide/workdir) [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking bstr v0.2.13 [INFO] [stderr] Checking crossbeam-channel v0.4.4 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking rayon-core v1.8.1 [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stderr] Checking csv v1.1.3 [INFO] [stderr] Checking tinytemplate v1.1.0 [INFO] [stderr] Compiling serde_derive v1.0.116 [INFO] [stderr] Checking criterion v0.3.3 [INFO] [stdout] warning: unused imports: `AtomicU32`, `AtomicU8`, `Ordering` [INFO] [stdout] --> benches/mempool.rs:6:25 [INFO] [stdout] | [INFO] [stdout] 6 | use std::sync::atomic::{AtomicU8, AtomicU32, Ordering}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `test::Bencher` [INFO] [stdout] --> benches/mempool.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use test::Bencher; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ArenaBox` [INFO] [stdout] --> benches/mempool.rs:103:40 [INFO] [stdout] | [INFO] [stdout] 103 | use shared_arena::{SharedArena, Arena, ArenaBox, Pool}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem::ManuallyDrop` [INFO] [stdout] --> benches/mempool.rs:127:5 [INFO] [stdout] | [INFO] [stdout] 127 | use std::mem::ManuallyDrop; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `shared_arena` [INFO] [stdout] --> benches/mempool.rs:148:9 [INFO] [stdout] | [INFO] [stdout] 148 | let mut shared_arena = SharedArena::::with_capacity(10000000); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_shared_arena` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pool` [INFO] [stdout] --> benches/mempool.rs:150:9 [INFO] [stdout] | [INFO] [stdout] 150 | let mut pool = Pool::::with_capacity(10000000); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pool` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `my_struct` [INFO] [stdout] --> benches/mempool.rs:152:9 [INFO] [stdout] | [INFO] [stdout] 152 | let my_struct = MyStruct::default(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_struct` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `size` [INFO] [stdout] --> benches/mempool.rs:153:9 [INFO] [stdout] | [INFO] [stdout] 153 | let size = std::mem::size_of::(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_size` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `plot_config` [INFO] [stdout] --> benches/mempool.rs:187:9 [INFO] [stdout] | [INFO] [stdout] 187 | let plot_config = PlotConfiguration::default() [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_plot_config` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> benches/mempool.rs:247:25 [INFO] [stdout] | [INFO] [stdout] 247 | let mut arena = Arena::::with_capacity(n); [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] --> benches/mempool.rs:294:25 [INFO] [stdout] | [INFO] [stdout] 294 | let mut arena = Pool::::with_capacity(n); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> benches/mempool.rs:148:9 [INFO] [stdout] | [INFO] [stdout] 148 | let mut shared_arena = SharedArena::::with_capacity(10000000); [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> benches/mempool.rs:150:9 [INFO] [stdout] | [INFO] [stdout] 150 | let mut pool = Pool::::with_capacity(10000000); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `a` [INFO] [stdout] --> benches/mempool.rs:108:5 [INFO] [stdout] | [INFO] [stdout] 108 | a: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `b` [INFO] [stdout] --> benches/mempool.rs:109:5 [INFO] [stdout] | [INFO] [stdout] 109 | b: &'static str, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `c` [INFO] [stdout] --> benches/mempool.rs:110:5 [INFO] [stdout] | [INFO] [stdout] 110 | c: usize, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 38.74s [INFO] running `Command { std: "docker" "inspect" "b0f01f699844d11f7f9c829a99e3b43b4433f71b3e97d0da15881d092d559a74", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b0f01f699844d11f7f9c829a99e3b43b4433f71b3e97d0da15881d092d559a74", kill_on_drop: false }` [INFO] [stdout] b0f01f699844d11f7f9c829a99e3b43b4433f71b3e97d0da15881d092d559a74