[INFO] cloning repository https://github.com/Elvis339/mit_6172_performance_engineering
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Elvis339/mit_6172_performance_engineering" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FElvis339%2Fmit_6172_performance_engineering", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FElvis339%2Fmit_6172_performance_engineering'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cb39c5c567dcd419a139d5ec1209d00fe7a260b9
[INFO] building Elvis339/mit_6172_performance_engineering against try#334963c956d25708feab489a3816ae63f639355d for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FElvis339%2Fmit_6172_performance_engineering" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Elvis339/mit_6172_performance_engineering on toolchain 334963c956d25708feab489a3816ae63f639355d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/Elvis339/mit_6172_performance_engineering
[INFO] finished tweaking git repo https://github.com/Elvis339/mit_6172_performance_engineering
[INFO] tweaked toml for git repo https://github.com/Elvis339/mit_6172_performance_engineering written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Elvis339/mit_6172_performance_engineering 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" "+334963c956d25708feab489a3816ae63f639355d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-3-tc2/source/classes/matrix_mul_1/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 823a5b5a75b9d5928b4ffa9a9daee9d4123a8718a09944f3795ea443be0e6710
[INFO] running `Command { std: "docker" "start" "-a" "823a5b5a75b9d5928b4ffa9a9daee9d4123a8718a09944f3795ea443be0e6710", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "823a5b5a75b9d5928b4ffa9a9daee9d4123a8718a09944f3795ea443be0e6710", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "823a5b5a75b9d5928b4ffa9a9daee9d4123a8718a09944f3795ea443be0e6710", kill_on_drop: false }`
[INFO] [stdout] 823a5b5a75b9d5928b4ffa9a9daee9d4123a8718a09944f3795ea443be0e6710
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9233134a4fdd655b9b828caaf7477b0a1698e715309d4265467c65df894049f
[INFO] running `Command { std: "docker" "start" "-a" "a9233134a4fdd655b9b828caaf7477b0a1698e715309d4265467c65df894049f", kill_on_drop: false }`
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/classes/matrix_mul_1/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling zerocopy v0.8.13
[INFO] [stderr]    Compiling serde v1.0.216
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling serde_json v1.0.134
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling half v2.4.1
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling itoa v1.0.14
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling clap_builder v4.5.23
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling oorandom v11.1.4
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling utils v0.1.0 (/opt/rustwide/workdir/classes/utils)
[INFO] [stderr]    Compiling assembly_lang_and_comp_arch v0.1.0 (/opt/rustwide/workdir/classes/assembly_lang_and_comp_arch_4)
[INFO] [stderr]    Compiling bentley_rules_2 v0.1.0 (/opt/rustwide/workdir/classes/bentley_rules_2)
[INFO] [stderr]    Compiling intro_0 v0.1.0 (/opt/rustwide/workdir/classes/intro_0)
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stdout] warning: struct `CompressedSparseRow` is never constructed
[INFO] [stdout]   --> classes/bentley_rules_2/src/compressed_sparse_row.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct CompressedSparseRow<T>
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `reconstruct`, and `get` are never used
[INFO] [stdout]   --> classes/bentley_rules_2/src/compressed_sparse_row.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | / impl<T> CompressedSparseRow<T>
[INFO] [stdout] 23 | | where
[INFO] [stdout] 24 | |     T: Add<Output = T> + Mul<Output = T> + Default + Copy + PartialEq,
[INFO] [stdout]    | |______________________________________________________________________- associated items in this implementation
[INFO] [stdout] 25 |   {
[INFO] [stdout] 26 |       pub fn new(matrix: Vec<Vec<T>>) -> Self {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |       pub fn reconstruct(&self) -> Vec<Vec<T>> {
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |       pub fn get(&self, row: usize, col: usize) -> T {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling getrandom v0.3.0-rc.0
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling is-terminal v0.4.13
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling clap v4.5.23
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling rand_core v0.9.0-beta.1
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling serde_derive v1.0.216
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling rand_chacha v0.9.0-beta.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.9.0-beta.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/rustwide/workdir/homework/2_profiling/recitation/rust)
[INFO] [stderr]    Compiling matrix_mul_1 v0.1.0 (/opt/rustwide/workdir/classes/matrix_mul_1)
[INFO] [stdout] warning: constant `CACHE_LINE_SIZE` is never used
[INFO] [stdout]  --> homework/2_profiling/recitation/rust/src/isort.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const CACHE_LINE_SIZE: usize = 64;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BLOCK_SIZE` is never used
[INFO] [stdout]  --> homework/2_profiling/recitation/rust/src/isort.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const BLOCK_SIZE: usize = CACHE_LINE_SIZE / 4;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `isort` is never used
[INFO] [stdout]  --> homework/2_profiling/recitation/rust/src/isort.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn isort(arr: &mut [u32]) {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `isort_unroll` is never used
[INFO] [stdout]   --> homework/2_profiling/recitation/rust/src/isort.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn isort_unroll(arr: &mut [u32]) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `isort_block` is never used
[INFO] [stdout]   --> homework/2_profiling/recitation/rust/src/isort.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn isort_block(_arr: &mut [u32]) {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> homework/2_profiling/recitation/rust/src/isort.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::arch::aarch64`
[INFO] [stdout]  --> classes/matrix_mul_1/src/main.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::arch::aarch64::*;
[INFO] [stdout]   |                ^^^^^^^ could not find `aarch64` in `arch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::random`
[INFO] [stdout]  --> classes/matrix_mul_1/src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::random;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Instant`
[INFO] [stdout]  --> classes/matrix_mul_1/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::time::Instant;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `matrix_mul_1` (bin "matrix_mul_1") due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: constant `CACHE_LINE_SIZE` is never used
[INFO] [stdout]  --> homework/2_profiling/recitation/rust/src/isort.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const CACHE_LINE_SIZE: usize = 64;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BLOCK_SIZE` is never used
[INFO] [stdout]  --> homework/2_profiling/recitation/rust/src/isort.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const BLOCK_SIZE: usize = CACHE_LINE_SIZE / 4;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a9233134a4fdd655b9b828caaf7477b0a1698e715309d4265467c65df894049f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9233134a4fdd655b9b828caaf7477b0a1698e715309d4265467c65df894049f", kill_on_drop: false }`
[INFO] [stdout] a9233134a4fdd655b9b828caaf7477b0a1698e715309d4265467c65df894049f
