[INFO] updating cached repository https://github.com/kislenko-artem/rust_db
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 874d04a91037b94fd22ec3d49bcbe4c60a7fd560
[INFO] checking kislenko-artem/rust_db against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkislenko-artem%2Frust_db" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kislenko-artem/rust_db on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/kislenko-artem/rust_db
[INFO] finished tweaking git repo https://github.com/kislenko-artem/rust_db
[INFO] tweaked toml for git repo https://github.com/kislenko-artem/rust_db written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/kislenko-artem/rust_db already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c6a4b9dc6ba55cc7688d7b5d0404b7658464352b152743a2906836b6656df3e0
[INFO] running `"docker" "start" "-a" "c6a4b9dc6ba55cc7688d7b5d0404b7658464352b152743a2906836b6656df3e0"`
[INFO] [stderr]     Checking db v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: constant item is never used: `TABLE_TYPE`
[INFO] [stderr]  --> src/fs/table.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | const TABLE_TYPE:[u8;2] = [0x00, 0x01];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `STRING_TYPE`
[INFO] [stderr]  --> src/fs/table.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const STRING_TYPE:[u8;2] = [0x00, 0x02];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `COLUMN_TEXT_TYPE`
[INFO] [stderr]  --> src/fs/table.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | const COLUMN_TEXT_TYPE:u8 = 0x01;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `COLUMN_INT_TYPE`
[INFO] [stderr]  --> src/fs/table.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | const COLUMN_INT_TYPE:u8 = 0x02;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `COLUMN_DATE_TYPE`
[INFO] [stderr]  --> src/fs/table.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | const COLUMN_DATE_TYPE:u8 = 0x03;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `COLUMN_DATETIME_TYPE`
[INFO] [stderr]  --> src/fs/table.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | const COLUMN_DATETIME_TYPE:u8 = 0x04;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ColumnTypes`
[INFO] [stderr]   --> src/fs/table.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | enum ColumnTypes {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Column`
[INFO] [stderr]   --> src/fs/table.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | struct Column {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/fs/table.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn new() -> Column {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Header`
[INFO] [stderr]   --> src/fs/table.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | struct Header {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write`
[INFO] [stderr]   --> src/fs/table.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn write(&mut self, path_to: String) -> Result<(), io::Error> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read`
[INFO] [stderr]   --> src/fs/table.rs:98:5
[INFO] [stderr]    |
[INFO] [stderr] 98 |     fn read(&mut self, path_to: String) -> Result<(), io::Error> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Table`
[INFO] [stderr]    --> src/fs/table.rs:164:1
[INFO] [stderr]     |
[INFO] [stderr] 164 | struct Table {
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_info`
[INFO] [stderr]    --> src/fs/table.rs:170:5
[INFO] [stderr]     |
[INFO] [stderr] 170 |     fn get_info(&mut self) -> Result<(), io::Error> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create`
[INFO] [stderr]    --> src/fs/table.rs:174:5
[INFO] [stderr]     |
[INFO] [stderr] 174 |     fn create(&mut self) -> Result<(), io::Error> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write`
[INFO] [stderr]    --> src/fs/table.rs:180:5
[INFO] [stderr]     |
[INFO] [stderr] 180 |     fn write(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read`
[INFO] [stderr]    --> src/fs/table.rs:184:5
[INFO] [stderr]     |
[INFO] [stderr] 184 |     fn read(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Fs`
[INFO] [stderr]  --> src/fs/mod.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct Fs {}
[INFO] [stderr]   | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write`
[INFO] [stderr]   --> src/fs/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn write(&self, path: String, bytes: &[u8]) -> Result<(), io::Error> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read`
[INFO] [stderr]   --> src/fs/mod.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn read(&self, path: String, contents: &mut Vec<u8>) -> Result<usize, io::Error> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `delete`
[INFO] [stderr]   --> src/fs/mod.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn delete(&self, path: String) -> Result<(), io::Error> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `STRING_TYPE`
[INFO] [stderr]  --> src/fs/table.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const STRING_TYPE:[u8;2] = [0x00, 0x02];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write`
[INFO] [stderr]    --> src/fs/table.rs:180:5
[INFO] [stderr]     |
[INFO] [stderr] 180 |     fn write(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read`
[INFO] [stderr]    --> src/fs/table.rs:184:5
[INFO] [stderr]     |
[INFO] [stderr] 184 |     fn read(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "c6a4b9dc6ba55cc7688d7b5d0404b7658464352b152743a2906836b6656df3e0"`
[INFO] running `"docker" "rm" "-f" "c6a4b9dc6ba55cc7688d7b5d0404b7658464352b152743a2906836b6656df3e0"`
[INFO] [stdout] c6a4b9dc6ba55cc7688d7b5d0404b7658464352b152743a2906836b6656df3e0