[INFO] cloning repository https://github.com/krdlab/simpledb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/krdlab/simpledb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrdlab%2Fsimpledb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrdlab%2Fsimpledb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7cb4a8e3a7fcc7acc2a49022f2b0692f08e91d18
[INFO] checking krdlab/simpledb against master#fdca237d5194bf8a1c9b437ebd2114d1c2ba6195 for pr-97739
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrdlab%2Fsimpledb" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/krdlab/simpledb on toolchain fdca237d5194bf8a1c9b437ebd2114d1c2ba6195
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fdca237d5194bf8a1c9b437ebd2114d1c2ba6195" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/krdlab/simpledb
[INFO] finished tweaking git repo https://github.com/krdlab/simpledb
[INFO] tweaked toml for git repo https://github.com/krdlab/simpledb written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/krdlab/simpledb already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fdca237d5194bf8a1c9b437ebd2114d1c2ba6195" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded byte v0.2.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+fdca237d5194bf8a1c9b437ebd2114d1c2ba6195" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff2d90b2d7906a947292ab59100c5fb5b59c5c5a6cadffa6a8b0fa20e1bbcdcb
[INFO] running `Command { std: "docker" "start" "-a" "ff2d90b2d7906a947292ab59100c5fb5b59c5c5a6cadffa6a8b0fa20e1bbcdcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff2d90b2d7906a947292ab59100c5fb5b59c5c5a6cadffa6a8b0fa20e1bbcdcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff2d90b2d7906a947292ab59100c5fb5b59c5c5a6cadffa6a8b0fa20e1bbcdcb", kill_on_drop: false }`
[INFO] [stdout] ff2d90b2d7906a947292ab59100c5fb5b59c5c5a6cadffa6a8b0fa20e1bbcdcb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+fdca237d5194bf8a1c9b437ebd2114d1c2ba6195" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eaa66494086c786895feb00c8f9fab1ad4dd2a7285601a80c3b68caab2122c6e
[INFO] running `Command { std: "docker" "start" "-a" "eaa66494086c786895feb00c8f9fab1ad4dd2a7285601a80c3b68caab2122c6e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]     Checking byte v0.2.6
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking simpledb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/byte_buffer.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn new(capacity: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/byte_buffer.rs:96:12
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn new(bytes: &'a mut [u8]) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileMgr` is never constructed
[INFO] [stdout]   --> src/file_mgr.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct FileMgr {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/file_mgr.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn new(db_dir_path: &Path, blocksize: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `is_new` is never used
[INFO] [stdout]   --> src/file_mgr.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn is_new(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `get_file` is never used
[INFO] [stdout]   --> src/file_mgr.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn get_file(&self, filename: &str) -> Result<Rc<RefCell<File>>> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `calc_seek_pos` is never used
[INFO] [stdout]   --> src/file_mgr.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn calc_seek_pos(&self, block: &BlockId) -> std::result::Result<SeekFrom, TryFromIntError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `read` is never used
[INFO] [stdout]   --> src/file_mgr.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn read(&self, block: &BlockId, page: &Page) -> Result<()> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `write` is never used
[INFO] [stdout]   --> src/file_mgr.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn write(&self, block: &BlockId, page: &Page) -> Result<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `append` is never used
[INFO] [stdout]   --> src/file_mgr.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub fn append(&self, filename: &str) -> Result<BlockId> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `length` is never used
[INFO] [stdout]    --> src/file_mgr.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn length(&self, filename: &str) -> Result<u64> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Page` is never constructed
[INFO] [stdout]   --> src/page.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Page<'a> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `for_data` is never used
[INFO] [stdout]   --> src/page.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn for_data(blocksize: usize) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `for_log` is never used
[INFO] [stdout]   --> src/page.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn for_log(bytes: &'a mut [u8]) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `set_i32` is never used
[INFO] [stdout]   --> src/page.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn set_i32(&mut self, offset: usize, n: i32) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `get_i32` is never used
[INFO] [stdout]   --> src/page.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn get_i32(&self, offset: usize) -> i32 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `set_bytes` is never used
[INFO] [stdout]   --> src/page.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn set_bytes(&mut self, offset: usize, bytes: &[u8]) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `get_bytes` is never used
[INFO] [stdout]   --> src/page.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn get_bytes(&mut self, offset: usize) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `set_string` is never used
[INFO] [stdout]   --> src/page.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn set_string(&mut self, offset: usize, s: &str) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `get_string` is never used
[INFO] [stdout]   --> src/page.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn get_string(&mut self, offset: usize) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `max_length` is never used
[INFO] [stdout]   --> src/page.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn max_length(strlen: usize) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `contents` is never used
[INFO] [stdout]   --> src/page.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn contents(&mut self) -> Rc<RefCell<Box<dyn ByteBuffer + 'a>>> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `read_from_file` is never used
[INFO] [stdout]   --> src/page.rs:73:22
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub(in crate) fn read_from_file(&self, file: Rc<RefCell<File>>) {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `write_to_file` is never used
[INFO] [stdout]   --> src/page.rs:81:22
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub(in crate) fn write_to_file(&self, file: Rc<RefCell<File>>) {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stdout] warning: associated function `calc_seek_pos` is never used
[INFO] [stdout]   --> src/file_mgr.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn calc_seek_pos(&self, block: &BlockId) -> std::result::Result<SeekFrom, TryFromIntError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `read` is never used
[INFO] [stdout]   --> src/file_mgr.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn read(&self, block: &BlockId, page: &Page) -> Result<()> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `write` is never used
[INFO] [stdout]   --> src/file_mgr.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn write(&self, block: &BlockId, page: &Page) -> Result<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `for_log` is never used
[INFO] [stdout]   --> src/page.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn for_log(bytes: &'a mut [u8]) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `max_length` is never used
[INFO] [stdout]   --> src/page.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn max_length(strlen: usize) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `contents` is never used
[INFO] [stdout]   --> src/page.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn contents(&mut self) -> Rc<RefCell<Box<dyn ByteBuffer + 'a>>> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `read_from_file` is never used
[INFO] [stdout]   --> src/page.rs:73:22
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub(in crate) fn read_from_file(&self, file: Rc<RefCell<File>>) {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `write_to_file` is never used
[INFO] [stdout]   --> src/page.rs:81:22
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub(in crate) fn write_to_file(&self, file: Rc<RefCell<File>>) {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.14s
[INFO] running `Command { std: "docker" "inspect" "eaa66494086c786895feb00c8f9fab1ad4dd2a7285601a80c3b68caab2122c6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaa66494086c786895feb00c8f9fab1ad4dd2a7285601a80c3b68caab2122c6e", kill_on_drop: false }`
[INFO] [stdout] eaa66494086c786895feb00c8f9fab1ad4dd2a7285601a80c3b68caab2122c6e