[INFO] cloning repository https://github.com/rickvantooster/rust-1brc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rickvantooster/rust-1brc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frickvantooster%2Frust-1brc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frickvantooster%2Frust-1brc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e61048eb68b86062897918b14e65a29486d7827f
[INFO] building rickvantooster/rust-1brc against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frickvantooster%2Frust-1brc" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rickvantooster/rust-1brc on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rickvantooster/rust-1brc
[INFO] finished tweaking git repo https://github.com/rickvantooster/rust-1brc
[INFO] tweaked toml for git repo https://github.com/rickvantooster/rust-1brc written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rickvantooster/rust-1brc 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fcb5fd90f593da8291b79a90db3a36b1fb69c62750634a8a9118a563aa69537
[INFO] running `Command { std: "docker" "start" "-a" "8fcb5fd90f593da8291b79a90db3a36b1fb69c62750634a8a9118a563aa69537", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fcb5fd90f593da8291b79a90db3a36b1fb69c62750634a8a9118a563aa69537", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fcb5fd90f593da8291b79a90db3a36b1fb69c62750634a8a9118a563aa69537", kill_on_drop: false }`
[INFO] [stdout] 8fcb5fd90f593da8291b79a90db3a36b1fb69c62750634a8a9118a563aa69537
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e81d2827397980ffe24d4ae7a2a9caf48f800f765e8714c47a8bef6b77bbae3f
[INFO] running `Command { std: "docker" "start" "-a" "e81d2827397980ffe24d4ae7a2a9caf48f800f765e8714c47a8bef6b77bbae3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling portable-atomic v1.6.0
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling console v0.15.8
[INFO] [stderr]    Compiling indicatif v0.17.8
[INFO] [stderr]    Compiling rust-1brc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Arc`, `hint::black_box`, `self`, and `time::Duration`
[INFO] [stdout]  --> src/main.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{fs::{self, File}, hint::black_box, io::{self, BufRead, BufReader, Read}, sync::{mpsc, Arc}, thread, time::Duration, u8};
[INFO] [stdout]   |                ^^^^         ^^^^^^^^^^^^^^^                                                     ^^^           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::threadpool::ThreadPool`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::threadpool::ThreadPool;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/threadpool.rs:92:25
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     Err(e) => {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let mut reader = BufReader::with_capacity(buf_size, file);
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_chunk_reader` is never used
[INFO] [stdout]   --> src/main.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn test_chunk_reader(file: File) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_chunks` is never used
[INFO] [stdout]   --> src/main.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn read_chunks(file: File) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ChunkMessageType` is never used
[INFO] [stdout]    --> src/main.rs:186:6
[INFO] [stdout]     |
[INFO] [stdout] 186 | enum ChunkMessageType {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LineMessageType` is never used
[INFO] [stdout]    --> src/main.rs:195:6
[INFO] [stdout]     |
[INFO] [stdout] 195 | enum LineMessageType {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ValueMessageType` is never used
[INFO] [stdout]    --> src/main.rs:199:6
[INFO] [stdout]     |
[INFO] [stdout] 199 | enum ValueMessageType {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_parse_num` is never used
[INFO] [stdout]    --> src/main.rs:264:4
[INFO] [stdout]     |
[INFO] [stdout] 264 | fn test_parse_num(){
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_naive_less_alloc` is never used
[INFO] [stdout]    --> src/main.rs:277:4
[INFO] [stdout]     |
[INFO] [stdout] 277 | fn process_naive_less_alloc(file: File) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_multithreaded` is never used
[INFO] [stdout]    --> src/main.rs:327:4
[INFO] [stdout]     |
[INFO] [stdout] 327 | fn process_multithreaded(file: File) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_chunked` is never used
[INFO] [stdout]    --> src/main.rs:391:4
[INFO] [stdout]     |
[INFO] [stdout] 391 | fn process_chunked(file: File) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Exit` is never constructed
[INFO] [stdout]   --> src/threadpool.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | enum TaskMessage {
[INFO] [stdout]    |      ----------- variant in this enum
[INFO] [stdout] 14 |     Job(Job),
[INFO] [stdout] 15 |     Exit
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/threadpool.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub struct Worker {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 74 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.99s
[INFO] running `Command { std: "docker" "inspect" "e81d2827397980ffe24d4ae7a2a9caf48f800f765e8714c47a8bef6b77bbae3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e81d2827397980ffe24d4ae7a2a9caf48f800f765e8714c47a8bef6b77bbae3f", kill_on_drop: false }`
[INFO] [stdout] e81d2827397980ffe24d4ae7a2a9caf48f800f765e8714c47a8bef6b77bbae3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b06a866b2b29f72792b1fe94f1eb124f4461f984f874200633c7918a0f83c948
[INFO] running `Command { std: "docker" "start" "-a" "b06a866b2b29f72792b1fe94f1eb124f4461f984f874200633c7918a0f83c948", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-1brc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Arc`, `hint::black_box`, `self`, and `time::Duration`
[INFO] [stdout]  --> src/main.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{fs::{self, File}, hint::black_box, io::{self, BufRead, BufReader, Read}, sync::{mpsc, Arc}, thread, time::Duration, u8};
[INFO] [stdout]   |                ^^^^         ^^^^^^^^^^^^^^^                                                     ^^^           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::threadpool::ThreadPool`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::threadpool::ThreadPool;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/threadpool.rs:92:25
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     Err(e) => {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let mut reader = BufReader::with_capacity(buf_size, file);
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_chunk_reader` is never used
[INFO] [stdout]   --> src/main.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn test_chunk_reader(file: File) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_chunks` is never used
[INFO] [stdout]   --> src/main.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn read_chunks(file: File) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ChunkMessageType` is never used
[INFO] [stdout]    --> src/main.rs:186:6
[INFO] [stdout]     |
[INFO] [stdout] 186 | enum ChunkMessageType {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LineMessageType` is never used
[INFO] [stdout]    --> src/main.rs:195:6
[INFO] [stdout]     |
[INFO] [stdout] 195 | enum LineMessageType {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ValueMessageType` is never used
[INFO] [stdout]    --> src/main.rs:199:6
[INFO] [stdout]     |
[INFO] [stdout] 199 | enum ValueMessageType {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_parse_num` is never used
[INFO] [stdout]    --> src/main.rs:264:4
[INFO] [stdout]     |
[INFO] [stdout] 264 | fn test_parse_num(){
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_naive_less_alloc` is never used
[INFO] [stdout]    --> src/main.rs:277:4
[INFO] [stdout]     |
[INFO] [stdout] 277 | fn process_naive_less_alloc(file: File) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_multithreaded` is never used
[INFO] [stdout]    --> src/main.rs:327:4
[INFO] [stdout]     |
[INFO] [stdout] 327 | fn process_multithreaded(file: File) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_chunked` is never used
[INFO] [stdout]    --> src/main.rs:391:4
[INFO] [stdout]     |
[INFO] [stdout] 391 | fn process_chunked(file: File) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Exit` is never constructed
[INFO] [stdout]   --> src/threadpool.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | enum TaskMessage {
[INFO] [stdout]    |      ----------- variant in this enum
[INFO] [stdout] 14 |     Job(Job),
[INFO] [stdout] 15 |     Exit
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/threadpool.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub struct Worker {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 74 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "b06a866b2b29f72792b1fe94f1eb124f4461f984f874200633c7918a0f83c948", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b06a866b2b29f72792b1fe94f1eb124f4461f984f874200633c7918a0f83c948", kill_on_drop: false }`
[INFO] [stdout] b06a866b2b29f72792b1fe94f1eb124f4461f984f874200633c7918a0f83c948