[INFO] cloning repository https://github.com/hoanganh2070/QpDB
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hoanganh2070/QpDB" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoanganh2070%2FQpDB", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoanganh2070%2FQpDB'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0010c3901385898dee2b4e01aa19483aab7b330e
[INFO] checking hoanganh2070/QpDB against try#f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2 for pr-156992
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoanganh2070%2FQpDB" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hoanganh2070/QpDB
[INFO] finished tweaking git repo https://github.com/hoanganh2070/QpDB
[INFO] tweaked toml for git repo https://github.com/hoanganh2070/QpDB written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hoanganh2070/QpDB on toolchain f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hoanganh2070/QpDB 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" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking hoanganh2070/QpDB against try#f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2 for pr-156992
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoanganh2070%2FQpDB" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hoanganh2070/QpDB
[INFO] finished tweaking git repo https://github.com/hoanganh2070/QpDB
[INFO] tweaked toml for git repo https://github.com/hoanganh2070/QpDB written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hoanganh2070/QpDB on toolchain f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hoanganh2070/QpDB 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" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d7d4ee72c3ef09300544c2f99a192aadc51bdf023cc12eebf766a62fb902ebb
[INFO] running `Command { std: "docker" "start" "-a" "1d7d4ee72c3ef09300544c2f99a192aadc51bdf023cc12eebf766a62fb902ebb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d7d4ee72c3ef09300544c2f99a192aadc51bdf023cc12eebf766a62fb902ebb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d7d4ee72c3ef09300544c2f99a192aadc51bdf023cc12eebf766a62fb902ebb", kill_on_drop: false }`
[INFO] [stdout] 1d7d4ee72c3ef09300544c2f99a192aadc51bdf023cc12eebf766a62fb902ebb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a19223917cbb3c0572ee77c7e3f59c6a7696cd457603d8da3b32c6932fbaf3c
[INFO] running `Command { std: "docker" "start" "-a" "5a19223917cbb3c0572ee77c7e3f59c6a7696cd457603d8da3b32c6932fbaf3c", kill_on_drop: false }`
[INFO] [stderr]     Checking qpdb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `DataAccessLayer` is never constructed
[INFO] [stdout]  --> src/dal.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct DataAccessLayer {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Page` is never constructed
[INFO] [stdout]   --> src/dal.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Page {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_dal` is never used
[INFO] [stdout]   --> src/dal.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn new_dal(path: String, page_size: i32) -> DataAccessLayer {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `close`, `allocate_empty_page`, `read_page`, and `write_page` are never used
[INFO] [stdout]   --> src/dal.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl DataAccessLayer {
[INFO] [stdout]    | -------------------- methods in this implementation
[INFO] [stdout] 31 |     pub fn close(&mut self) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn allocate_empty_page(&mut self) -> Page {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn read_page(&mut self, page_num: i32) -> Result<Page, io::Error> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn write_page(&mut self, p: &Page) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DataAccessLayer` is never constructed
[INFO] [stdout]  --> src/dal.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct DataAccessLayer {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Page` is never constructed
[INFO] [stdout]   --> src/dal.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Page {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_dal` is never used
[INFO] [stdout]   --> src/dal.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn new_dal(path: String, page_size: i32) -> DataAccessLayer {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `close`, `allocate_empty_page`, `read_page`, and `write_page` are never used
[INFO] [stdout]   --> src/dal.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl DataAccessLayer {
[INFO] [stdout]    | -------------------- methods in this implementation
[INFO] [stdout] 31 |     pub fn close(&mut self) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn allocate_empty_page(&mut self) -> Page {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn read_page(&mut self, page_num: i32) -> Result<Page, io::Error> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn write_page(&mut self, p: &Page) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "5a19223917cbb3c0572ee77c7e3f59c6a7696cd457603d8da3b32c6932fbaf3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a19223917cbb3c0572ee77c7e3f59c6a7696cd457603d8da3b32c6932fbaf3c", kill_on_drop: false }`
[INFO] [stdout] 5a19223917cbb3c0572ee77c7e3f59c6a7696cd457603d8da3b32c6932fbaf3c