[INFO] cloning repository https://github.com/ernilsson/shepherd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ernilsson/shepherd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fernilsson%2Fshepherd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fernilsson%2Fshepherd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1f08a137683b454787afe9f6e3deafb1695c1fde
[INFO] checking ernilsson/shepherd against try#54cf65b8d066c082e536455049b95943cf30378f for pr-151920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fernilsson%2Fshepherd" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ernilsson/shepherd
[INFO] finished tweaking git repo https://github.com/ernilsson/shepherd
[INFO] tweaked toml for git repo https://github.com/ernilsson/shepherd written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ernilsson/shepherd on toolchain 54cf65b8d066c082e536455049b95943cf30378f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54cf65b8d066c082e536455049b95943cf30378f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ernilsson/shepherd 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" "+54cf65b8d066c082e536455049b95943cf30378f" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+54cf65b8d066c082e536455049b95943cf30378f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea64ba88ad330dc47bfa40f5ade6276f1211319bc8fb4d2966568018991bc509
[INFO] running `Command { std: "docker" "start" "-a" "ea64ba88ad330dc47bfa40f5ade6276f1211319bc8fb4d2966568018991bc509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea64ba88ad330dc47bfa40f5ade6276f1211319bc8fb4d2966568018991bc509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea64ba88ad330dc47bfa40f5ade6276f1211319bc8fb4d2966568018991bc509", kill_on_drop: false }`
[INFO] [stdout] ea64ba88ad330dc47bfa40f5ade6276f1211319bc8fb4d2966568018991bc509
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+54cf65b8d066c082e536455049b95943cf30378f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab03eab3534fbba3b6443bbdc36a0f8d18f38a2b50282270ba145198e05598a9
[INFO] running `Command { std: "docker" "start" "-a" "ab03eab3534fbba3b6443bbdc36a0f8d18f38a2b50282270ba145198e05598a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]     Checking rand_core v0.9.5
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking shepherd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `Bit` is never used
[INFO] [stdout]  --> src/dbms/storage/integrity.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum Bit {
[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 `Register` is never constructed
[INFO] [stdout]   --> src/dbms/storage/integrity.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct Register<'a> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `shift`, `pop`, `advance`, `xor`, and `get` are never used
[INFO] [stdout]   --> src/dbms/storage/integrity.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl<'a> Register<'a> {
[INFO] [stdout]    | --------------------- associated items in this implementation
[INFO] [stdout] 37 |     fn new(n: &'a [u8]) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     fn shift(&mut self) -> Option<Bit> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     fn pop(&mut self) -> Bit {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     fn advance(&mut self) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     fn xor(&mut self, n: u8) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     fn get(self) -> u8 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `crc` is never used
[INFO] [stdout]   --> src/dbms/storage/integrity.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn crc(poly: u8, n: &[u8]) -> u8 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SIZE` is never used
[INFO] [stdout]  --> src/dbms/storage/meta.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const SIZE: usize = page::SIZE - 1;
[INFO] [stdout]   |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CRC_POLY` is never used
[INFO] [stdout]  --> src/dbms/storage/meta.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const CRC_POLY: u8 = 0xB0;
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write` is never used
[INFO] [stdout]  --> src/dbms/storage/meta.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn write(file: &mut File, pair: (u64, u64), buf: &[u8; SIZE]) -> io::Result<()> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read` is never used
[INFO] [stdout]   --> src/dbms/storage/meta.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn read(file: &mut File, pair: (u64, u64), buf: &mut [u8; SIZE]) -> io::Result<()> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init` is never used
[INFO] [stdout]   --> src/dbms/storage/meta.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn init(file: &mut File, pair: (u64, u64)) -> io::Result<()> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SIZE` is never used
[INFO] [stdout]  --> src/dbms/storage/page.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const SIZE: usize = 8192;
[INFO] [stdout]   |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read` is never used
[INFO] [stdout]  --> src/dbms/storage/page.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn read(file: &mut File, page: u64, buf: &mut [u8; SIZE]) -> io::Result<()> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write` is never used
[INFO] [stdout]   --> src/dbms/storage/page.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn write(file: &mut File, page: u64, buf: &[u8; SIZE]) -> io::Result<()> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `copy` is never used
[INFO] [stdout]   --> src/dbms/storage/page.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn copy(file: &mut File, src: u64, dst: u64) -> io::Result<()> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.15s
[INFO] running `Command { std: "docker" "inspect" "ab03eab3534fbba3b6443bbdc36a0f8d18f38a2b50282270ba145198e05598a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab03eab3534fbba3b6443bbdc36a0f8d18f38a2b50282270ba145198e05598a9", kill_on_drop: false }`
[INFO] [stdout] ab03eab3534fbba3b6443bbdc36a0f8d18f38a2b50282270ba145198e05598a9