[INFO] cloning repository https://github.com/Narendra500/walrus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Narendra500/walrus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNarendra500%2Fwalrus", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNarendra500%2Fwalrus'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cc444c6e78e90bca3ddf5c10c8ebdf50448855ec
[INFO] checking Narendra500/walrus against 8006091eb71ae7d9e9bccb66c6122c9d68af4466 for pr-129249-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNarendra500%2Fwalrus" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/Narendra500/walrus
[INFO] finished tweaking git repo https://github.com/Narendra500/walrus
[INFO] tweaked toml for git repo https://github.com/Narendra500/walrus written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Narendra500/walrus on toolchain 8006091eb71ae7d9e9bccb66c6122c9d68af4466
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8006091eb71ae7d9e9bccb66c6122c9d68af4466" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Narendra500/walrus 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" "+8006091eb71ae7d9e9bccb66c6122c9d68af4466" "fetch" "--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]  Downloading crates ...
[INFO] [stderr]   Downloaded fast-float v0.2.0
[INFO] [stderr]   Downloaded jemallocator v0.3.2
[INFO] [stderr]   Downloaded jemalloc-sys v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 53a75b3465de779a61379fe422710d7e997ad781271dd941e599bf943e25f97f
[INFO] running `Command { std: "docker" "start" "53a75b3465de779a61379fe422710d7e997ad781271dd941e599bf943e25f97f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53a75b3465de779a61379fe422710d7e997ad781271dd941e599bf943e25f97f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "53a75b3465de779a61379fe422710d7e997ad781271dd941e599bf943e25f97f" "/opt/rustwide/cargo-home/bin/cargo" "+8006091eb71ae7d9e9bccb66c6122c9d68af4466" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53a75b3465de779a61379fe422710d7e997ad781271dd941e599bf943e25f97f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "53a75b3465de779a61379fe422710d7e997ad781271dd941e599bf943e25f97f" "/opt/rustwide/cargo-home/bin/cargo" "+8006091eb71ae7d9e9bccb66c6122c9d68af4466" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]     Checking cfg-if v1.0.4
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling shlex v2.0.1
[INFO] [stderr]    Compiling find-msvc-tools v0.1.9
[INFO] [stderr]     Checking futures-core v0.3.32
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking smallvec v1.15.2
[INFO] [stderr]    Compiling fs_extra v1.3.0
[INFO] [stderr]     Checking pin-project-lite v0.2.17
[INFO] [stderr]    Compiling cc v1.2.65
[INFO] [stderr]     Checking futures-sink v0.3.32
[INFO] [stderr]     Checking lock_api v0.4.14
[INFO] [stderr]     Checking anstyle-parse v1.0.0
[INFO] [stderr]     Checking futures-channel v0.3.32
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.2
[INFO] [stderr]     Checking anstyle v1.0.14
[INFO] [stderr]     Checking futures-io v0.3.32
[INFO] [stderr]     Checking anstyle-query v1.1.5
[INFO] [stderr]     Checking memchr v2.8.2
[INFO] [stderr]     Checking slab v0.4.12
[INFO] [stderr]     Checking futures-task v0.3.32
[INFO] [stderr]    Compiling getrandom v0.4.3
[INFO] [stderr]     Checking colorchoice v1.0.5
[INFO] [stderr]    Compiling zerocopy v0.8.52
[INFO] [stderr]     Checking rand_core v0.10.1
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]     Checking anstream v1.0.0
[INFO] [stderr]     Checking cpufeatures v0.3.0
[INFO] [stderr]     Checking once_cell v1.21.4
[INFO] [stderr]     Checking clap_lex v1.1.0
[INFO] [stderr]     Checking chacha20 v0.10.0
[INFO] [stderr]     Checking clap_builder v4.6.0
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking bytes v1.12.0
[INFO] [stderr]    Compiling syn v2.0.118
[INFO] [stderr]     Checking fast-float v0.2.0
[INFO] [stderr]     Checking ryu v1.0.23
[INFO] [stderr]     Checking itoa v1.0.18
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]     Checking errno v0.3.14
[INFO] [stderr]     Checking signal-hook-registry v1.4.8
[INFO] [stderr]     Checking socket2 v0.6.4
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking mio v1.2.1
[INFO] [stderr]     Checking dashmap v6.2.1
[INFO] [stderr]     Checking rand v0.10.1
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling tokio-macros v2.7.0
[INFO] [stderr]    Compiling clap_derive v4.6.1
[INFO] [stderr]     Checking tokio v1.52.3
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]     Checking clap v4.6.1
[INFO] [stderr]     Checking futures-executor v0.3.32
[INFO] [stderr]     Checking futures v0.3.32
[INFO] [stderr]     Checking jemallocator v0.3.2
[INFO] [stderr]     Checking walrus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `pop_back` is never used
[INFO] [stdout]    --> src/db.rs:237:19
[INFO] [stdout]     |
[INFO] [stdout]  98 | impl Db {
[INFO] [stdout]     | ------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 237 |     pub(crate) fn pop_back(&self, key: &Bytes) -> Result<Option<Data>, WalrusError> {
[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 `pop_back` is never used
[INFO] [stdout]    --> src/db.rs:237:19
[INFO] [stdout]     |
[INFO] [stdout]  98 | impl Db {
[INFO] [stdout]     | ------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 237 |     pub(crate) fn pop_back(&self, key: &Bytes) -> Result<Option<Data>, WalrusError> {
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `rand`
[INFO] [stderr]  --> Cargo.toml:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | rand = "0.10.0"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `rand`
[INFO] [stderr] help: to still use for development builds, move to `dev-dependencies`
[INFO] [stderr] warning: `walrus` (manifest) generated 1 warning
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 24s
[INFO] running `Command { std: "docker" "inspect" "53a75b3465de779a61379fe422710d7e997ad781271dd941e599bf943e25f97f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53a75b3465de779a61379fe422710d7e997ad781271dd941e599bf943e25f97f", kill_on_drop: false }`
[INFO] [stdout] 53a75b3465de779a61379fe422710d7e997ad781271dd941e599bf943e25f97f