[INFO] fetching crate nano_arena 0.5.2... [INFO] checking nano_arena-0.5.2 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1 [INFO] extracting crate nano_arena 0.5.2 into /workspace/builds/worker-0-tc2/source [INFO] started tweaking crates.io crate nano_arena 0.5.2 [INFO] finished tweaking crates.io crate nano_arena 0.5.2 [INFO] tweaked toml for crates.io crate nano_arena 0.5.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate nano_arena 0.5.2 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 72 packages to latest compatible versions [INFO] [stderr] Adding criterion v0.3.6 (available: v0.7.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d7f6593de41ab0f7f2a7d8725dba80e04017532b441a37ed718ce943c7936564 [INFO] running `Command { std: "docker" "start" "-a" "d7f6593de41ab0f7f2a7d8725dba80e04017532b441a37ed718ce943c7936564", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d7f6593de41ab0f7f2a7d8725dba80e04017532b441a37ed718ce943c7936564", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d7f6593de41ab0f7f2a7d8725dba80e04017532b441a37ed718ce943c7936564", kill_on_drop: false }` [INFO] [stdout] d7f6593de41ab0f7f2a7d8725dba80e04017532b441a37ed718ce943c7936564 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f9d11fb12dd06774d2cf59924e1c05e8361736e19b5fb1523b00008e3b869b9d [INFO] running `Command { std: "docker" "start" "-a" "f9d11fb12dd06774d2cf59924e1c05e8361736e19b5fb1523b00008e3b869b9d", kill_on_drop: false }` [INFO] [stderr] Checking serde_json v1.0.143 [INFO] [stderr] Checking csv-core v0.1.12 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking nano_arena v0.5.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/lib.rs:224:10 [INFO] [stdout] | [INFO] [stdout] 224 | &'a mut self, [INFO] [stdout] | ^^ the lifetime is named here [INFO] [stdout] 225 | selected: I, [INFO] [stdout] 226 | ) -> Option<(&mut T, ArenaSplit<'a, T>)> { [INFO] [stdout] | ------ -- the same lifetime is named here [INFO] [stdout] | | [INFO] [stdout] | the same lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 226 | ) -> Option<(&'a mut T, ArenaSplit<'a, T>)> { [INFO] [stdout] | ++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking csv v1.3.1 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.3.6 [INFO] [stdout] warning: use of deprecated struct `criterion::ParameterizedBenchmark`: Please use BenchmarkGroups instead. [INFO] [stdout] --> benches/benches.rs:1:61 [INFO] [stdout] | [INFO] [stdout] 1 | use criterion::{criterion_group, criterion_main, Criterion, ParameterizedBenchmark, Throughput}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated struct `criterion::ParameterizedBenchmark`: Please use BenchmarkGroups instead. [INFO] [stdout] --> benches/benches.rs:45:9 [INFO] [stdout] | [INFO] [stdout] 45 | ParameterizedBenchmark::new( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated struct `criterion::ParameterizedBenchmark`: Please use BenchmarkGroups instead. [INFO] [stdout] --> benches/benches.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | ParameterizedBenchmark::new( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated struct `criterion::ParameterizedBenchmark`: Please use BenchmarkGroups instead. [INFO] [stdout] --> benches/benches.rs:65:9 [INFO] [stdout] | [INFO] [stdout] 65 | ParameterizedBenchmark::new( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated struct `criterion::ParameterizedBenchmark`: Please use BenchmarkGroups instead. [INFO] [stdout] --> benches/benches.rs:82:9 [INFO] [stdout] | [INFO] [stdout] 82 | ParameterizedBenchmark::new( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated struct `criterion::ParameterizedBenchmark`: Please use BenchmarkGroups instead. [INFO] [stdout] --> benches/benches.rs:99:9 [INFO] [stdout] | [INFO] [stdout] 99 | ParameterizedBenchmark::new( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated struct `criterion::ParameterizedBenchmark`: Please use BenchmarkGroups instead. [INFO] [stdout] --> benches/benches.rs:115:9 [INFO] [stdout] | [INFO] [stdout] 115 | ParameterizedBenchmark::new( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `criterion::Criterion::::bench`: Please use BenchmarkGroups instead. [INFO] [stdout] --> benches/benches.rs:43:7 [INFO] [stdout] | [INFO] [stdout] 43 | c.bench( [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `criterion::Criterion::::bench`: Please use BenchmarkGroups instead. [INFO] [stdout] --> benches/benches.rs:53:7 [INFO] [stdout] | [INFO] [stdout] 53 | c.bench( [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `criterion::Criterion::::bench`: Please use BenchmarkGroups instead. [INFO] [stdout] --> benches/benches.rs:63:7 [INFO] [stdout] | [INFO] [stdout] 63 | c.bench( [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `criterion::Criterion::::bench`: Please use BenchmarkGroups instead. [INFO] [stdout] --> benches/benches.rs:80:7 [INFO] [stdout] | [INFO] [stdout] 80 | c.bench( [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `criterion::Criterion::::bench`: Please use BenchmarkGroups instead. [INFO] [stdout] --> benches/benches.rs:97:7 [INFO] [stdout] | [INFO] [stdout] 97 | c.bench( [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `criterion::Criterion::::bench`: Please use BenchmarkGroups instead. [INFO] [stdout] --> benches/benches.rs:113:7 [INFO] [stdout] | [INFO] [stdout] 113 | c.bench( [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> benches/benches.rs:5:14 [INFO] [stdout] | [INFO] [stdout] 5 | struct Small(usize); [INFO] [stdout] | ----- ^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> benches/benches.rs:8:12 [INFO] [stdout] | [INFO] [stdout] 8 | struct Big([usize; 32]); [INFO] [stdout] | --- ^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `insert_and_delete` is never used [INFO] [stdout] --> benches/benches.rs:20:4 [INFO] [stdout] | [INFO] [stdout] 20 | fn insert_and_delete(n: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/lib.rs:224:10 [INFO] [stdout] | [INFO] [stdout] 224 | &'a mut self, [INFO] [stdout] | ^^ the lifetime is named here [INFO] [stdout] 225 | selected: I, [INFO] [stdout] 226 | ) -> Option<(&mut T, ArenaSplit<'a, T>)> { [INFO] [stdout] | ------ -- the same lifetime is named here [INFO] [stdout] | | [INFO] [stdout] | the same lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 226 | ) -> Option<(&'a mut T, ArenaSplit<'a, T>)> { [INFO] [stdout] | ++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/lib.rs:760:9 [INFO] [stdout] | [INFO] [stdout] 760 | drop(first_mut_ref); [INFO] [stdout] | ^^^^^-------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut i32` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 760 - drop(first_mut_ref); [INFO] [stdout] 760 + let _ = first_mut_ref; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.91s [INFO] running `Command { std: "docker" "inspect" "f9d11fb12dd06774d2cf59924e1c05e8361736e19b5fb1523b00008e3b869b9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f9d11fb12dd06774d2cf59924e1c05e8361736e19b5fb1523b00008e3b869b9d", kill_on_drop: false }` [INFO] [stdout] f9d11fb12dd06774d2cf59924e1c05e8361736e19b5fb1523b00008e3b869b9d