[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] c90bfbfd96c85206758851107381bd137c06c6c5
[INFO] checking djcsdy/blobdb against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[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 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 977d9bc4ccd937856322eae40f30951ee5fea0d9fd60aa9c2147264e794085d3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "977d9bc4ccd937856322eae40f30951ee5fea0d9fd60aa9c2147264e794085d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "977d9bc4ccd937856322eae40f30951ee5fea0d9fd60aa9c2147264e794085d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "977d9bc4ccd937856322eae40f30951ee5fea0d9fd60aa9c2147264e794085d3", kill_on_drop: false }`
[INFO] [stdout] 977d9bc4ccd937856322eae40f30951ee5fea0d9fd60aa9c2147264e794085d3
[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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c742f4ef5247de3f60a541e4ebe9e80f789edca19a8759d929490de500206aa
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8c742f4ef5247de3f60a541e4ebe9e80f789edca19a8759d929490de500206aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]     Checking cpufeatures v0.1.5
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking sha2 v0.9.5
[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: associated function is never used: `name`
[INFO] [stdout]  --> src/lib/blob_id.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn name(&self) -> PathBuf {
[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] 
[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: field is never read: `lock`
[INFO] [stdout]   --> src/lib/db.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     lock: Option<File>,
[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: `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: `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: `name`
[INFO] [stdout]  --> src/lib/blob_id.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn name(&self) -> PathBuf {
[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] 
[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: field is never read: `lock`
[INFO] [stdout]   --> src/lib/db.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     lock: Option<File>,
[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: `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: `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: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.51s
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8c742f4ef5247de3f60a541e4ebe9e80f789edca19a8759d929490de500206aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c742f4ef5247de3f60a541e4ebe9e80f789edca19a8759d929490de500206aa", kill_on_drop: false }`
[INFO] [stdout] 8c742f4ef5247de3f60a541e4ebe9e80f789edca19a8759d929490de500206aa