[INFO] cloning repository https://github.com/djcsdy/blobdb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/djcsdy/blobdb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjcsdy%2Fblobdb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjcsdy%2Fblobdb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d3d9a176ecc8f219c641e2cfe0c29dddfc15aa7d
[INFO] checking djcsdy/blobdb against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjcsdy%2Fblobdb" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/djcsdy/blobdb on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/djcsdy/blobdb
[INFO] finished tweaking git repo https://github.com/djcsdy/blobdb
[INFO] tweaked toml for git repo https://github.com/djcsdy/blobdb written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/djcsdy/blobdb already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b759af9f3baabed3789a75a2af21850fceba380e1fc3add7239ad14014f4c733
[INFO] running `Command { std: "docker" "start" "-a" "b759af9f3baabed3789a75a2af21850fceba380e1fc3add7239ad14014f4c733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b759af9f3baabed3789a75a2af21850fceba380e1fc3add7239ad14014f4c733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b759af9f3baabed3789a75a2af21850fceba380e1fc3add7239ad14014f4c733", kill_on_drop: false }`
[INFO] [stdout] b759af9f3baabed3789a75a2af21850fceba380e1fc3add7239ad14014f4c733
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50ac92fbeb705237244a8b1daf66866c0f3a01e7d32c0dbe079caed43679640d
[INFO] running `Command { std: "docker" "start" "-a" "50ac92fbeb705237244a8b1daf66866c0f3a01e7d32c0dbe079caed43679640d", 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking blobdb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/lib/db.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |           let id = todo!();
[INFO] [stdout]    |                    ------- any code following this expression is unreachable
[INFO] [stdout] 37 | 
[INFO] [stdout] 38 | /         Ok(Db {
[INFO] [stdout] 39 | |             id,
[INFO] [stdout] 40 | |             path: path.into(),
[INFO] [stdout] 41 | |             lock,
[INFO] [stdout] 42 | |         })
[INFO] [stdout]    | |__________^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/lib/db.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |           let id = todo!();
[INFO] [stdout]    |                    ------- any code following this expression is unreachable
[INFO] [stdout] 37 | 
[INFO] [stdout] 38 | /         Ok(Db {
[INFO] [stdout] 39 | |             id,
[INFO] [stdout] 40 | |             path: path.into(),
[INFO] [stdout] 41 | |             lock,
[INFO] [stdout] 42 | |         })
[INFO] [stdout]    | |__________^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/lib/db.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let id = todo!();
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/lib/db.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let id = todo!();
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Block`
[INFO] [stdout]  --> src/lib/block.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Block {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Block`
[INFO] [stdout]  --> src/lib/block.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Block {
[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: `read`
[INFO] [stdout]   --> src/lib/block.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn read<R>(reader: &mut R) -> io::Result<Block>
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read`
[INFO] [stdout]   --> src/lib/block.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn read<R>(reader: &mut R) -> io::Result<Block>
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `digest`
[INFO] [stdout]   --> src/lib/block.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn digest(&self) -> [u8; 32] {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `digest`
[INFO] [stdout]   --> src/lib/block.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn digest(&self) -> [u8; 32] {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Db`
[INFO] [stdout]   --> src/lib/db.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Db {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Db`
[INFO] [stdout]   --> src/lib/db.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Db {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `open`
[INFO] [stdout]   --> src/lib/db.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn open(path: &Path) -> io::Result<Db> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `open`
[INFO] [stdout]   --> src/lib/db.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn open(path: &Path) -> io::Result<Db> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `open_dir`
[INFO] [stdout]   --> src/lib/db.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn open_dir(path: &Path) -> io::Result<Db> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `open_dir`
[INFO] [stdout]   --> src/lib/db.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn open_dir(path: &Path) -> io::Result<Db> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read`
[INFO] [stdout]   --> src/lib/packet.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn read<R>(reader: &mut R) -> io::Result<RawPacket>
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read`
[INFO] [stdout]   --> src/lib/packet.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn read<R>(reader: &mut R) -> io::Result<RawPacket>
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `blob_id`
[INFO] [stdout]   --> src/lib/packet.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn blob_id(&self) -> BlobId {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `blob_id`
[INFO] [stdout]   --> src/lib/packet.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn blob_id(&self) -> BlobId {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `offset`
[INFO] [stdout]   --> src/lib/packet.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn offset(&self) -> u64 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `offset`
[INFO] [stdout]   --> src/lib/packet.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn offset(&self) -> u64 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `data`
[INFO] [stdout]   --> src/lib/packet.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn data(&self) -> &[u8] {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `data`
[INFO] [stdout]   --> src/lib/packet.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn data(&self) -> &[u8] {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.26s
[INFO] running `Command { std: "docker" "inspect" "50ac92fbeb705237244a8b1daf66866c0f3a01e7d32c0dbe079caed43679640d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50ac92fbeb705237244a8b1daf66866c0f3a01e7d32c0dbe079caed43679640d", kill_on_drop: false }`
[INFO] [stdout] 50ac92fbeb705237244a8b1daf66866c0f3a01e7d32c0dbe079caed43679640d