[INFO] cloning repository https://github.com/trevortomlin/fhe-lfsr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/trevortomlin/fhe-lfsr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrevortomlin%2Ffhe-lfsr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrevortomlin%2Ffhe-lfsr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 403e3d022a13ca9db43c31d0790fab4af3fcd5c0
[INFO] building trevortomlin/fhe-lfsr against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrevortomlin%2Ffhe-lfsr" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/trevortomlin/fhe-lfsr
[INFO] finished tweaking git repo https://github.com/trevortomlin/fhe-lfsr
[INFO] tweaked toml for git repo https://github.com/trevortomlin/fhe-lfsr written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/trevortomlin/fhe-lfsr on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/trevortomlin/fhe-lfsr 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-complex v0.4.4
[INFO] [stderr]   Downloaded reborrow v0.5.5
[INFO] [stderr]   Downloaded dyn-stack v0.9.1
[INFO] [stderr]   Downloaded concrete-csprng v0.4.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.70
[INFO] [stderr]   Downloaded pulp v0.11.11
[INFO] [stderr]   Downloaded bytemuck v1.14.0
[INFO] [stderr]   Downloaded aes v0.8.3
[INFO] [stderr]   Downloaded concrete-fft v0.3.0
[INFO] [stderr]   Downloaded pulp v0.13.2
[INFO] [stderr]   Downloaded tfhe v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 675e82d7335fd9fb6c73fe158d5c2bb368671849b6cedce0a57a86ca7651c360
[INFO] running `Command { std: "docker" "start" "-a" "675e82d7335fd9fb6c73fe158d5c2bb368671849b6cedce0a57a86ca7651c360", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "675e82d7335fd9fb6c73fe158d5c2bb368671849b6cedce0a57a86ca7651c360", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "675e82d7335fd9fb6c73fe158d5c2bb368671849b6cedce0a57a86ca7651c360", kill_on_drop: false }`
[INFO] [stdout] 675e82d7335fd9fb6c73fe158d5c2bb368671849b6cedce0a57a86ca7651c360
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f72b56474f23a0fc6b9c16402fe963f7fd49bf9bb0ceebd65f9ea3c6442ad2e8
[INFO] running `Command { std: "docker" "start" "-a" "f72b56474f23a0fc6b9c16402fe963f7fd49bf9bb0ceebd65f9ea3c6442ad2e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling bytemuck v1.14.0
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling inout v0.1.3
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling reborrow v0.5.5
[INFO] [stderr]    Compiling cpufeatures v0.2.11
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling concrete-csprng v0.4.0
[INFO] [stderr]    Compiling cipher v0.4.4
[INFO] [stderr]    Compiling dyn-stack v0.9.1
[INFO] [stderr]    Compiling pulp v0.11.11
[INFO] [stderr]    Compiling tfhe v0.4.1
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling aes v0.8.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling rayon v1.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling num-complex v0.4.4
[INFO] [stderr]    Compiling aligned-vec v0.5.0
[INFO] [stderr]    Compiling concrete-fft v0.3.0
[INFO] [stderr]    Compiling pulp v0.13.2
[INFO] [stderr]    Compiling fhe-lfsr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `LFSR` is never constructed
[INFO] [stdout]  --> src/lfsr.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct LFSR {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `next`, and `period` are never used
[INFO] [stdout]   --> src/lfsr.rs:7:12
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl LFSR {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout]  7 |     pub fn new(initial_state: u8) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub fn next(&mut self) -> u8 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn period(&self) -> u8 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FHELFSR` is never constructed
[INFO] [stdout]  --> src/fhelfsr.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct FHELFSR {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `next` are never used
[INFO] [stdout]   --> src/fhelfsr.rs:9:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl FHELFSR {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout]  9 |     pub fn new(initial_state: FheUint8) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn next(&mut self) -> FheUint8 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 31s
[INFO] running `Command { std: "docker" "inspect" "f72b56474f23a0fc6b9c16402fe963f7fd49bf9bb0ceebd65f9ea3c6442ad2e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f72b56474f23a0fc6b9c16402fe963f7fd49bf9bb0ceebd65f9ea3c6442ad2e8", kill_on_drop: false }`
[INFO] [stdout] f72b56474f23a0fc6b9c16402fe963f7fd49bf9bb0ceebd65f9ea3c6442ad2e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 151ac3dc96a4bbdf91519779d0178a013667d5bb31c849169008097a5a1bfa61
[INFO] running `Command { std: "docker" "start" "-a" "151ac3dc96a4bbdf91519779d0178a013667d5bb31c849169008097a5a1bfa61", kill_on_drop: false }`
[INFO] [stderr]    Compiling fhe-lfsr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `LFSR` is never constructed
[INFO] [stdout]  --> src/lfsr.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct LFSR {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `next`, and `period` are never used
[INFO] [stdout]   --> src/lfsr.rs:7:12
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl LFSR {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout]  7 |     pub fn new(initial_state: u8) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub fn next(&mut self) -> u8 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn period(&self) -> u8 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FHELFSR` is never constructed
[INFO] [stdout]  --> src/fhelfsr.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct FHELFSR {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `next` are never used
[INFO] [stdout]   --> src/fhelfsr.rs:9:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl FHELFSR {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout]  9 |     pub fn new(initial_state: FheUint8) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn next(&mut self) -> FheUint8 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/fhelfsr.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut fhe_initial_state = FheUint8::try_encrypt(clear_initial_state, &keys).unwrap();
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `initial_state` is never read
[INFO] [stdout]  --> src/fhelfsr.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct FHELFSR {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 4 |     initial_state: FheUint8,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.36s
[INFO] running `Command { std: "docker" "inspect" "151ac3dc96a4bbdf91519779d0178a013667d5bb31c849169008097a5a1bfa61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "151ac3dc96a4bbdf91519779d0178a013667d5bb31c849169008097a5a1bfa61", kill_on_drop: false }`
[INFO] [stdout] 151ac3dc96a4bbdf91519779d0178a013667d5bb31c849169008097a5a1bfa61