[INFO] cloning repository https://github.com/cordear/skip_list [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cordear/skip_list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcordear%2Fskip_list", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcordear%2Fskip_list'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 415d42e997c89bc28563be42668bc2fa6e54515b [INFO] checking cordear/skip_list/415d42e997c89bc28563be42668bc2fa6e54515b against try#de0e80659cee4f27282e60d63bbb8c5271a0d147 for pr-129392 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcordear%2Fskip_list" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/cordear/skip_list on toolchain de0e80659cee4f27282e60d63bbb8c5271a0d147 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/cordear/skip_list [INFO] finished tweaking git repo https://github.com/cordear/skip_list [INFO] tweaked toml for git repo https://github.com/cordear/skip_list written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/cordear/skip_list 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" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9ee7b404d9121014a574637a3b611457835f1fa39306de13a7812120817e3c1d [INFO] running `Command { std: "docker" "start" "-a" "9ee7b404d9121014a574637a3b611457835f1fa39306de13a7812120817e3c1d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9ee7b404d9121014a574637a3b611457835f1fa39306de13a7812120817e3c1d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9ee7b404d9121014a574637a3b611457835f1fa39306de13a7812120817e3c1d", kill_on_drop: false }` [INFO] [stdout] 9ee7b404d9121014a574637a3b611457835f1fa39306de13a7812120817e3c1d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dc1319c07306fb2665e6547fe5808cfcf60a63838a1de02c93aabf7c5c5ebc7f [INFO] running `Command { std: "docker" "start" "-a" "dc1319c07306fb2665e6547fe5808cfcf60a63838a1de02c93aabf7c5c5ebc7f", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.146 [INFO] [stderr] Checking getrandom v0.2.10 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking skip_list v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `level` is never read [INFO] [stdout] --> src/skip_list.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 4 | struct Node [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 10 | level: usize, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `level` is never read [INFO] [stdout] --> src/skip_list.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 4 | struct Node [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 10 | level: usize, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `set_value` and `is_head` are never used [INFO] [stdout] --> src/skip_list.rs:42:12 [INFO] [stdout] | [INFO] [stdout] 24 | / impl Node [INFO] [stdout] 25 | | where [INFO] [stdout] 26 | | K: PartialOrd, [INFO] [stdout] | |__________________- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 42 | pub fn set_value(&mut self, value: V) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | pub fn is_head(&self) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `set_value` and `is_head` are never used [INFO] [stdout] --> src/skip_list.rs:42:12 [INFO] [stdout] | [INFO] [stdout] 24 | / impl Node [INFO] [stdout] 25 | | where [INFO] [stdout] 26 | | K: PartialOrd, [INFO] [stdout] | |__________________- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 42 | pub fn set_value(&mut self, value: V) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | pub fn is_head(&self) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.59s [INFO] running `Command { std: "docker" "inspect" "dc1319c07306fb2665e6547fe5808cfcf60a63838a1de02c93aabf7c5c5ebc7f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc1319c07306fb2665e6547fe5808cfcf60a63838a1de02c93aabf7c5c5ebc7f", kill_on_drop: false }` [INFO] [stdout] dc1319c07306fb2665e6547fe5808cfcf60a63838a1de02c93aabf7c5c5ebc7f