[INFO] fetching crate apk-rs 0.0.0...
[INFO] checking apk-rs-0.0.0 against master#18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb for pr-96970
[INFO] extracting crate apk-rs 0.0.0 into /workspace/builds/worker-64/source
[INFO] validating manifest of crates.io crate apk-rs 0.0.0 on toolchain 18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate apk-rs 0.0.0
[INFO] finished tweaking crates.io crate apk-rs 0.0.0
[INFO] tweaked toml for crates.io crate apk-rs 0.0.0 written to /workspace/builds/worker-64/source/Cargo.toml
[INFO] crate crates.io crate apk-rs 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb" "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-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 879ded9855e48796ef9bfbc4abe8afcaed27dad833e99d8c7cc89a2ad611d8b6
[INFO] running `Command { std: "docker" "start" "-a" "879ded9855e48796ef9bfbc4abe8afcaed27dad833e99d8c7cc89a2ad611d8b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "879ded9855e48796ef9bfbc4abe8afcaed27dad833e99d8c7cc89a2ad611d8b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "879ded9855e48796ef9bfbc4abe8afcaed27dad833e99d8c7cc89a2ad611d8b6", kill_on_drop: false }`
[INFO] [stdout] 879ded9855e48796ef9bfbc4abe8afcaed27dad833e99d8c7cc89a2ad611d8b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f222760f917c82088dc1f6e577eb2e82d24eac58e932f9712174c2552af29351
[INFO] running `Command { std: "docker" "start" "-a" "f222760f917c82088dc1f6e577eb2e82d24eac58e932f9712174c2552af29351", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.107
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[INFO] [stderr]     Checking apk-rs v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.81s
[INFO] [stdout] warning: struct is never constructed: `DB`
[INFO] [stdout]   --> src/lib/db.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct DB {
[INFO] [stdout]    |        ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib/db.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `setup_cache`
[INFO] [stdout]  --> src/lib/util.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn setup_cache(p: String) -> std::io::Result<()> {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `DB`
[INFO] [stdout]   --> src/lib/db.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct DB {
[INFO] [stdout]    |        ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib/db.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `setup_cache`
[INFO] [stdout]  --> src/lib/util.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn setup_cache(p: String) -> std::io::Result<()> {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `file_path` is never read
[INFO] [stdout]    --> src/bin/apk.rs:573:25
[INFO] [stdout]     |
[INFO] [stdout] 573 |                 let mut file_path: String = "".to_string();
[INFO] [stdout]     |                         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `file_path` is never read
[INFO] [stdout]    --> src/bin/apk.rs:573:25
[INFO] [stdout]     |
[INFO] [stdout] 573 |                 let mut file_path: String = "".to_string();
[INFO] [stdout]     |                         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f222760f917c82088dc1f6e577eb2e82d24eac58e932f9712174c2552af29351", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f222760f917c82088dc1f6e577eb2e82d24eac58e932f9712174c2552af29351", kill_on_drop: false }`
[INFO] [stdout] f222760f917c82088dc1f6e577eb2e82d24eac58e932f9712174c2552af29351