[INFO] cloning repository https://github.com/AdleyTales/rust-learn-always [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AdleyTales/rust-learn-always" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdleyTales%2Frust-learn-always", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdleyTales%2Frust-learn-always'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] dea9556057f1f492126a234c3fe94820cb27edd3 [INFO] building AdleyTales/rust-learn-always 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%2FAdleyTales%2Frust-learn-always" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/AdleyTales/rust-learn-always 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/AdleyTales/rust-learn-always [INFO] finished tweaking git repo https://github.com/AdleyTales/rust-learn-always [INFO] tweaked toml for git repo https://github.com/AdleyTales/rust-learn-always written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/AdleyTales/rust-learn-always 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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ee3c44efec81b22c3035a82f014d0f36f8206ae46bf08ab5ce372bfc67a5fe0d [INFO] running `Command { std: "docker" "start" "-a" "ee3c44efec81b22c3035a82f014d0f36f8206ae46bf08ab5ce372bfc67a5fe0d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ee3c44efec81b22c3035a82f014d0f36f8206ae46bf08ab5ce372bfc67a5fe0d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ee3c44efec81b22c3035a82f014d0f36f8206ae46bf08ab5ce372bfc67a5fe0d", kill_on_drop: false }` [INFO] [stdout] ee3c44efec81b22c3035a82f014d0f36f8206ae46bf08ab5ce372bfc67a5fe0d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ee381782ce7f3541a4a419402105ad66293c4f4b870d5d17cb613bb8bc7fdaab [INFO] running `Command { std: "docker" "start" "-a" "ee381782ce7f3541a4a419402105ad66293c4f4b870d5d17cb613bb8bc7fdaab", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.152 [INFO] [stderr] Compiling getrandom v0.2.12 [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 rust-learn-always v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/bin/1_字符串_string.rs:7:13 [INFO] [stdout] | [INFO] [stdout] 7 | let mut s = String::from("Hello world"); // String [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/bin/1_字符串_string.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let s = s.to_string(); // String [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/1_字符串_string.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let mut s = String::from("Hello world"); // String [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: fields `username` and `email` are never read [INFO] [stdout] --> src/bin/1_结构体_struct.rs:73:5 [INFO] [stdout] | [INFO] [stdout] 72 | struct User<'a> { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 73 | username: &'a str, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 74 | email: &'a str, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `ipV4` should have a snake case name [INFO] [stdout] --> src/bin/1_枚举_enums.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let ipV4 = IpAddrKind::V4; [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `ip_v4` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `ipV6` should have a snake case name [INFO] [stdout] --> src/bin/1_枚举_enums.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let ipV6 = IpAddrKind::V6; [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `ip_v6` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main1` is never used [INFO] [stdout] --> src/bin/1_错误处理_panic.rs:53:4 [INFO] [stdout] | [INFO] [stdout] 53 | fn main1() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.09s [INFO] running `Command { std: "docker" "inspect" "ee381782ce7f3541a4a419402105ad66293c4f4b870d5d17cb613bb8bc7fdaab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ee381782ce7f3541a4a419402105ad66293c4f4b870d5d17cb613bb8bc7fdaab", kill_on_drop: false }` [INFO] [stdout] ee381782ce7f3541a4a419402105ad66293c4f4b870d5d17cb613bb8bc7fdaab [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d6e846aeacf18e43dde6ec3cce51ec28c456c1b8aee5f60b744ef91a06c18535 [INFO] running `Command { std: "docker" "start" "-a" "d6e846aeacf18e43dde6ec3cce51ec28c456c1b8aee5f60b744ef91a06c18535", kill_on_drop: false }` [INFO] [stderr] Compiling rust-learn-always v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/bin/1_字符串_string.rs:7:13 [INFO] [stdout] | [INFO] [stdout] 7 | let mut s = String::from("Hello world"); // String [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/bin/1_字符串_string.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let s = s.to_string(); // String [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/1_字符串_string.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let mut s = String::from("Hello world"); // String [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 `main1` is never used [INFO] [stdout] --> src/bin/1_错误处理_panic.rs:53:4 [INFO] [stdout] | [INFO] [stdout] 53 | fn main1() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `ipV4` should have a snake case name [INFO] [stdout] --> src/bin/1_枚举_enums.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let ipV4 = IpAddrKind::V4; [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `ip_v4` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `ipV6` should have a snake case name [INFO] [stdout] --> src/bin/1_枚举_enums.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let ipV6 = IpAddrKind::V6; [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `ip_v6` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `username` and `email` are never read [INFO] [stdout] --> src/bin/1_结构体_struct.rs:73:5 [INFO] [stdout] | [INFO] [stdout] 72 | struct User<'a> { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 73 | username: &'a str, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 74 | email: &'a str, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.25s [INFO] running `Command { std: "docker" "inspect" "d6e846aeacf18e43dde6ec3cce51ec28c456c1b8aee5f60b744ef91a06c18535", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d6e846aeacf18e43dde6ec3cce51ec28c456c1b8aee5f60b744ef91a06c18535", kill_on_drop: false }` [INFO] [stdout] d6e846aeacf18e43dde6ec3cce51ec28c456c1b8aee5f60b744ef91a06c18535