[INFO] cloning repository https://github.com/imtherealnaska/rs-caskdb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/imtherealnaska/rs-caskdb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimtherealnaska%2Frs-caskdb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimtherealnaska%2Frs-caskdb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 333a57320b66558c973337dc41ae718c69529bca
[INFO] checking imtherealnaska/rs-caskdb against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimtherealnaska%2Frs-caskdb" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/imtherealnaska/rs-caskdb
[INFO] finished tweaking git repo https://github.com/imtherealnaska/rs-caskdb
[INFO] tweaked toml for git repo https://github.com/imtherealnaska/rs-caskdb written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/imtherealnaska/rs-caskdb on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/imtherealnaska/rs-caskdb 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1bdd5948bf9640f18dd2eff438004df3bd0f8f032fbffbe4041185772cc134c3
[INFO] running `Command { std: "docker" "start" "-a" "1bdd5948bf9640f18dd2eff438004df3bd0f8f032fbffbe4041185772cc134c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1bdd5948bf9640f18dd2eff438004df3bd0f8f032fbffbe4041185772cc134c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bdd5948bf9640f18dd2eff438004df3bd0f8f032fbffbe4041185772cc134c3", kill_on_drop: false }`
[INFO] [stdout] 1bdd5948bf9640f18dd2eff438004df3bd0f8f032fbffbe4041185772cc134c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3bfc08027ca4e462f92dfe48338b95d761844338bbe797d46dc5deabf0df458
[INFO] running `Command { std: "docker" "start" "-a" "d3bfc08027ca4e462f92dfe48338b95d761844338bbe797d46dc5deabf0df458", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking rs-caskdb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `file_name`
[INFO] [stdout]   --> src/disk_store.rs:47:36
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn init_key_dir(&mut self, file_name: &str) -> io::Result<()> {
[INFO] [stdout]    |                                    ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `DiskStore` is never constructed
[INFO] [stdout]   --> src/disk_store.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct DiskStore {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `timestamp` is never read
[INFO] [stdout]  --> src/format.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct KeyEntry {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 5 |     pub(crate) timestamp: u32,
[INFO] [stdout]   |                ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_name`
[INFO] [stdout]   --> src/disk_store.rs:47:36
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn init_key_dir(&mut self, file_name: &str) -> io::Result<()> {
[INFO] [stdout]    |                                    ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rs-caskdb` (lib) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `DiskStore` is never constructed
[INFO] [stdout]   --> src/disk_store.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct DiskStore {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `timestamp` is never read
[INFO] [stdout]  --> src/format.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct KeyEntry {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 5 |     pub(crate) timestamp: u32,
[INFO] [stdout]   |                ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rs-caskdb` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "d3bfc08027ca4e462f92dfe48338b95d761844338bbe797d46dc5deabf0df458", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3bfc08027ca4e462f92dfe48338b95d761844338bbe797d46dc5deabf0df458", kill_on_drop: false }`
[INFO] [stdout] d3bfc08027ca4e462f92dfe48338b95d761844338bbe797d46dc5deabf0df458