[INFO] fetching crate nexus-collections 0.7.0...
[INFO] checking nexus-collections-0.7.0 against try#7b3da9103634dffd4f4365cfd8642427c781d99f+rustflags=-Dinherent-method-on-receiver for 152214-denied-retry-0
[INFO] extracting crate nexus-collections 0.7.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate nexus-collections 0.7.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate nexus-collections 0.7.0
[INFO] tweaked toml for crates.io crate nexus-collections 0.7.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nexus-collections 0.7.0 on toolchain 7b3da9103634dffd4f4365cfd8642427c781d99f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate nexus-collections 0.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ddf4295a9f3d07ab2ccffc259142b86524cccfe2662f340964838a41306c1976
[INFO] running `Command { std: "docker" "start" "-a" "ddf4295a9f3d07ab2ccffc259142b86524cccfe2662f340964838a41306c1976", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddf4295a9f3d07ab2ccffc259142b86524cccfe2662f340964838a41306c1976", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddf4295a9f3d07ab2ccffc259142b86524cccfe2662f340964838a41306c1976", kill_on_drop: false }`
[INFO] [stdout] ddf4295a9f3d07ab2ccffc259142b86524cccfe2662f340964838a41306c1976
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dinherent-method-on-receiver" "-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85c2ebf4a98726a28ecd82040e584f5c5eb0a0cf0e79a5cd32fd48274b30df1a
[INFO] running `Command { std: "docker" "start" "-a" "85c2ebf4a98726a28ecd82040e584f5c5eb0a0cf0e79a5cd32fd48274b30df1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking memchr v2.7.6
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking winnow v0.7.14
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]    Compiling serde_json v1.0.147
[INFO] [stderr]    Compiling target-triple v1.0.0
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking simd-adler32 v0.3.8
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking sdd v3.0.10
[INFO] [stderr]     Checking zmij v0.1.9
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]     Checking scc v2.4.0
[INFO] [stderr]     Checking flate2 v1.1.5
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking toml_parser v1.0.6+spec-1.1.0
[INFO] [stderr]     Checking nexus-slab v0.11.1
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking glob v0.3.3
[INFO] [stderr]     Checking toml v0.9.11+spec-1.1.0
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]    Compiling seq-macro v0.3.6
[INFO] [stderr]     Checking nexus-collections v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking hdrhistogram v7.5.4
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serial_test_derive v3.3.1
[INFO] [stderr]     Checking serial_test v3.3.1
[INFO] [stderr]     Checking trybuild v1.0.115
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> examples/perf_skiplist.rs:227:13
[INFO] [stdout]     |
[INFO] [stdout] 227 |             black_box(map.try_insert(k, 0));
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 227 |             let _ = black_box(map.try_insert(k, 0));
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> examples/perf_skiplist.rs:251:13
[INFO] [stdout]     |
[INFO] [stdout] 251 |             black_box(map.try_insert(k, 0));
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 251 |             let _ = black_box(map.try_insert(k, 0));
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> examples/perf_skiplist.rs:308:13
[INFO] [stdout]     |
[INFO] [stdout] 308 |             black_box(map.try_insert(k, 999));
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 308 |             let _ = black_box(map.try_insert(k, 999));
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> examples/perf_skiplist.rs:376:13
[INFO] [stdout]     |
[INFO] [stdout] 376 |             black_box(map.entry(k).or_try_insert(0));
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 376 |             let _ = black_box(map.entry(k).or_try_insert(0));
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.80s
[INFO] running `Command { std: "docker" "inspect" "85c2ebf4a98726a28ecd82040e584f5c5eb0a0cf0e79a5cd32fd48274b30df1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85c2ebf4a98726a28ecd82040e584f5c5eb0a0cf0e79a5cd32fd48274b30df1a", kill_on_drop: false }`
[INFO] [stdout] 85c2ebf4a98726a28ecd82040e584f5c5eb0a0cf0e79a5cd32fd48274b30df1a
