[INFO] fetching crate skiplist 0.5.1...
[INFO] checking skiplist-0.5.1 against try#306c6aded24f02440063be828ebe601fe5eb8323 for pr-133502-3
[INFO] extracting crate skiplist 0.5.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate skiplist 0.5.1 on toolchain 306c6aded24f02440063be828ebe601fe5eb8323
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate skiplist 0.5.1
[INFO] finished tweaking crates.io crate skiplist 0.5.1
[INFO] tweaked toml for crates.io crate skiplist 0.5.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 79 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.5.1)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5adc6387998c43c4a3e944d69404f8db9a90b0f3d7132519f767e7f7b6e6a22f
[INFO] running `Command { std: "docker" "start" "-a" "5adc6387998c43c4a3e944d69404f8db9a90b0f3d7132519f767e7f7b6e6a22f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5adc6387998c43c4a3e944d69404f8db9a90b0f3d7132519f767e7f7b6e6a22f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5adc6387998c43c4a3e944d69404f8db9a90b0f3d7132519f767e7f7b6e6a22f", kill_on_drop: false }`
[INFO] [stdout] 5adc6387998c43c4a3e944d69404f8db9a90b0f3d7132519f767e7f7b6e6a22f
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9adad6ef787f693341e2b8d2468459539cf0402d376301926bba44edc085953b
[INFO] running `Command { std: "docker" "start" "-a" "9adad6ef787f693341e2b8d2468459539cf0402d376301926bba44edc085953b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking csv-core v0.1.12
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking skiplist v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `AsPtrMut` is never used
[INFO] [stdout]    --> src/skipnode.rs:904:7
[INFO] [stdout]     |
[INFO] [stdout] 904 | trait AsPtrMut<T> {
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> benches/main.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | /// Group Benchmarks
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> benches/main.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | /// Benchmarks
[INFO] [stdout]    | ^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AsPtrMut` is never used
[INFO] [stdout]    --> src/skipnode.rs:904:7
[INFO] [stdout]     |
[INFO] [stdout] 904 | trait AsPtrMut<T> {
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.94s
[INFO] running `Command { std: "docker" "inspect" "9adad6ef787f693341e2b8d2468459539cf0402d376301926bba44edc085953b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9adad6ef787f693341e2b8d2468459539cf0402d376301926bba44edc085953b", kill_on_drop: false }`
[INFO] [stdout] 9adad6ef787f693341e2b8d2468459539cf0402d376301926bba44edc085953b