[INFO] cloning repository https://github.com/yutadd/StudyRust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yutadd/StudyRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyutadd%2FStudyRust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyutadd%2FStudyRust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cad0c829a9f19fb0926f883e384585b69d67f2d5 [INFO] testing yutadd/StudyRust against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyutadd%2FStudyRust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/yutadd/StudyRust [INFO] finished tweaking git repo https://github.com/yutadd/StudyRust [INFO] tweaked toml for git repo https://github.com/yutadd/StudyRust written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/yutadd/StudyRust on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/yutadd/StudyRust 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3307049e4dd1ea13f1bf0bd3676ebb0930c4dff87b96017d091d2cde3b1685eb [INFO] running `Command { std: "docker" "start" "-a" "3307049e4dd1ea13f1bf0bd3676ebb0930c4dff87b96017d091d2cde3b1685eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3307049e4dd1ea13f1bf0bd3676ebb0930c4dff87b96017d091d2cde3b1685eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3307049e4dd1ea13f1bf0bd3676ebb0930c4dff87b96017d091d2cde3b1685eb", kill_on_drop: false }` [INFO] [stdout] 3307049e4dd1ea13f1bf0bd3676ebb0930c4dff87b96017d091d2cde3b1685eb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 3ac2d1798282e693a3335d607354577fbabf197c2a231f761e3fe207d8a54c64 [INFO] running `Command { std: "docker" "start" "-a" "3ac2d1798282e693a3335d607354577fbabf197c2a231f761e3fe207d8a54c64", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.137 [INFO] [stderr] Compiling getrandom v0.2.8 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling study v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::net::TcpListener` [INFO] [stdout] --> src/lib.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::net::TcpListener; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `FnBox` is never used [INFO] [stdout] --> src/lib.rs:6:7 [INFO] [stdout] | [INFO] [stdout] 6 | trait FnBox{ [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `path::PathBuf` [INFO] [stdout] --> src/lv1_do_match/mod.rs:2:16 [INFO] [stdout] | [INFO] [stdout] 2 | use std::{env, path::PathBuf}; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `size` [INFO] [stdout] --> src/lv2_using_thread_pool/mod.rs:3:11 [INFO] [stdout] | [INFO] [stdout] 3 | fn new(size: u32) -> ThreadPool { ThreadPool } [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_size` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/lv2_using_thread_pool/mod.rs:4:25 [INFO] [stdout] | [INFO] [stdout] 4 | fn execute(&self, f: F) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.90s [INFO] running `Command { std: "docker" "inspect" "3ac2d1798282e693a3335d607354577fbabf197c2a231f761e3fe207d8a54c64", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3ac2d1798282e693a3335d607354577fbabf197c2a231f761e3fe207d8a54c64", kill_on_drop: false }` [INFO] [stdout] 3ac2d1798282e693a3335d607354577fbabf197c2a231f761e3fe207d8a54c64 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 9cb36828308a78eb9be60774d237e963dda546156661e8a56e2b4cb4ccad1d7c [INFO] running `Command { std: "docker" "start" "-a" "9cb36828308a78eb9be60774d237e963dda546156661e8a56e2b4cb4ccad1d7c", kill_on_drop: false }` [INFO] [stderr] Compiling study v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::net::TcpListener` [INFO] [stdout] --> src/lib.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::net::TcpListener; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `FnBox` is never used [INFO] [stdout] --> src/lib.rs:6:7 [INFO] [stdout] | [INFO] [stdout] 6 | trait FnBox{ [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::net::TcpListener` [INFO] [stdout] --> src/lib.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::net::TcpListener; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `path::PathBuf` [INFO] [stdout] --> src/lv1_do_match/mod.rs:2:16 [INFO] [stdout] | [INFO] [stdout] 2 | use std::{env, path::PathBuf}; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `FnBox` is never used [INFO] [stdout] --> src/lib.rs:6:7 [INFO] [stdout] | [INFO] [stdout] 6 | trait FnBox{ [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `size` [INFO] [stdout] --> src/lv2_using_thread_pool/mod.rs:3:11 [INFO] [stdout] | [INFO] [stdout] 3 | fn new(size: u32) -> ThreadPool { ThreadPool } [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_size` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/lv2_using_thread_pool/mod.rs:4:25 [INFO] [stdout] | [INFO] [stdout] 4 | fn execute(&self, f: F) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.93s [INFO] running `Command { std: "docker" "inspect" "9cb36828308a78eb9be60774d237e963dda546156661e8a56e2b4cb4ccad1d7c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9cb36828308a78eb9be60774d237e963dda546156661e8a56e2b4cb4ccad1d7c", kill_on_drop: false }` [INFO] [stdout] 9cb36828308a78eb9be60774d237e963dda546156661e8a56e2b4cb4ccad1d7c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] d8bbde3e0767dd481448a5e0c31464c6ff16d1c76248bee0bc8b89ebc41faec1 [INFO] running `Command { std: "docker" "start" "-a" "d8bbde3e0767dd481448a5e0c31464c6ff16d1c76248bee0bc8b89ebc41faec1", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::net::TcpListener` [INFO] [stderr] --> src/lib.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::net::TcpListener; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait `FnBox` is never used [INFO] [stderr] --> src/lib.rs:6:7 [INFO] [stderr] | [INFO] [stderr] 6 | trait FnBox{ [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `study` (lib) generated 2 warnings (run `cargo fix --lib -p study` to apply 1 suggestion) [INFO] [stderr] warning: `study` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] warning: unused import: `path::PathBuf` [INFO] [stderr] --> src/lv1_do_match/mod.rs:2:16 [INFO] [stderr] | [INFO] [stderr] 2 | use std::{env, path::PathBuf}; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `size` [INFO] [stderr] --> src/lv2_using_thread_pool/mod.rs:3:11 [INFO] [stderr] | [INFO] [stderr] 3 | fn new(size: u32) -> ThreadPool { ThreadPool } [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_size` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/lv2_using_thread_pool/mod.rs:4:25 [INFO] [stderr] | [INFO] [stderr] 4 | fn execute(&self, f: F) [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: `study` (bin "study" test) generated 3 warnings (run `cargo fix --bin "study" --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/study-3a8f48c5c2b691b4) [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/study-f0b8aa6a884245da) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "d8bbde3e0767dd481448a5e0c31464c6ff16d1c76248bee0bc8b89ebc41faec1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d8bbde3e0767dd481448a5e0c31464c6ff16d1c76248bee0bc8b89ebc41faec1", kill_on_drop: false }` [INFO] [stdout] d8bbde3e0767dd481448a5e0c31464c6ff16d1c76248bee0bc8b89ebc41faec1