[INFO] cloning repository https://github.com/SpadeA-Tang/skiplist-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SpadeA-Tang/skiplist-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpadeA-Tang%2Fskiplist-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpadeA-Tang%2Fskiplist-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a9d27501ddfc17d6df9afababcaa6280f1af9e77
[INFO] checking SpadeA-Tang/skiplist-rs against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpadeA-Tang%2Fskiplist-rs" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SpadeA-Tang/skiplist-rs
[INFO] finished tweaking git repo https://github.com/SpadeA-Tang/skiplist-rs
[INFO] tweaked toml for git repo https://github.com/SpadeA-Tang/skiplist-rs written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SpadeA-Tang/skiplist-rs on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SpadeA-Tang/skiplist-rs 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tikv-jemallocator v0.5.4
[INFO] [stderr]   Downloaded tikv-jemalloc-ctl v0.5.4
[INFO] [stderr]   Downloaded fail v0.5.1
[INFO] [stderr]   Downloaded generator v0.7.5
[INFO] [stderr]   Downloaded slog v2.7.0
[INFO] [stderr]   Downloaded loom v0.7.1
[INFO] [stderr]   Downloaded regex-automata v0.4.4
[INFO] [stderr]   Downloaded tikv-jemalloc-sys v0.5.4+5.3.0-patched
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2be83dcb16b00f8bd9578d88b9e50c5ba8b3287d54bdd1a9c8c62dd937e8db20
[INFO] running `Command { std: "docker" "start" "-a" "2be83dcb16b00f8bd9578d88b9e50c5ba8b3287d54bdd1a9c8c62dd937e8db20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2be83dcb16b00f8bd9578d88b9e50c5ba8b3287d54bdd1a9c8c62dd937e8db20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2be83dcb16b00f8bd9578d88b9e50c5ba8b3287d54bdd1a9c8c62dd937e8db20", kill_on_drop: false }`
[INFO] [stdout] 2be83dcb16b00f8bd9578d88b9e50c5ba8b3287d54bdd1a9c8c62dd937e8db20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53cba54d98bf921dcdc157ebca2422ad1ce917936450faabd341efe0a2811406
[INFO] running `Command { std: "docker" "start" "-a" "53cba54d98bf921dcdc157ebca2422ad1ce917936450faabd341efe0a2811406", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex-automata v0.4.4
[INFO] [stderr]    Compiling tikv-jemalloc-sys v0.5.4+5.3.0-patched
[INFO] [stderr]    Compiling generator v0.7.5
[INFO] [stderr]     Checking fail v0.5.1
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking loom v0.7.1
[INFO] [stderr]     Checking tikv-jemallocator v0.5.4
[INFO] [stderr]     Checking tikv-jemalloc-ctl v0.5.4
[INFO] [stderr]     Checking skiplist-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `drop_key_value` is never used
[INFO] [stdout]    --> src/list.rs:124:8
[INFO] [stdout]     |
[INFO] [stdout] 121 | pub trait ReclaimableNode {
[INFO] [stdout]     |           --------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 124 |     fn drop_key_value(&mut self);
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `drop_key_value` is never used
[INFO] [stdout]    --> src/list.rs:124:8
[INFO] [stdout]     |
[INFO] [stdout] 121 | pub trait ReclaimableNode {
[INFO] [stdout]     |           --------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 124 |     fn drop_key_value(&mut self);
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 45s
[INFO] running `Command { std: "docker" "inspect" "53cba54d98bf921dcdc157ebca2422ad1ce917936450faabd341efe0a2811406", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53cba54d98bf921dcdc157ebca2422ad1ce917936450faabd341efe0a2811406", kill_on_drop: false }`
[INFO] [stdout] 53cba54d98bf921dcdc157ebca2422ad1ce917936450faabd341efe0a2811406