[INFO] cloning repository https://github.com/guozhouwei/helloworld [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guozhouwei/helloworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld'... [INFO] [stderr] fatal: write error: No space left on device [INFO] [stderr] fatal: fetch-pack: invalid index-pack output [WARN] Retrying crate fetch in 3 seconds (attempt 1) [INFO] cloning repository https://github.com/guozhouwei/helloworld [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guozhouwei/helloworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 2) [INFO] cloning repository https://github.com/guozhouwei/helloworld [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guozhouwei/helloworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 3) [INFO] cloning repository https://github.com/guozhouwei/helloworld [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guozhouwei/helloworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 4) [INFO] cloning repository https://github.com/guozhouwei/helloworld [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guozhouwei/helloworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 5) [INFO] cloning repository https://github.com/guozhouwei/helloworld [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guozhouwei/helloworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 6) [INFO] cloning repository https://github.com/guozhouwei/helloworld [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guozhouwei/helloworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 7) [INFO] cloning repository https://github.com/guozhouwei/helloworld [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guozhouwei/helloworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 8) [INFO] cloning repository https://github.com/guozhouwei/helloworld [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guozhouwei/helloworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 9) [INFO] cloning repository https://github.com/guozhouwei/helloworld [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guozhouwei/helloworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 10) [INFO] cloning repository https://github.com/guozhouwei/helloworld [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guozhouwei/helloworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 11) [INFO] cloning repository https://github.com/guozhouwei/helloworld [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guozhouwei/helloworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 12) [INFO] cloning repository https://github.com/guozhouwei/helloworld [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guozhouwei/helloworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] aaf4db519691b0943c7b7d46ff688d032346555b [INFO] checking guozhouwei/helloworld against master#a7fc463dd8fbeca800d4b3efc501069502cffe64 for pr-136988 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguozhouwei%2Fhelloworld" "/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/guozhouwei/helloworld on toolchain a7fc463dd8fbeca800d4b3efc501069502cffe64 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7fc463dd8fbeca800d4b3efc501069502cffe64" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/guozhouwei/helloworld [INFO] finished tweaking git repo https://github.com/guozhouwei/helloworld [INFO] tweaked toml for git repo https://github.com/guozhouwei/helloworld written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/guozhouwei/helloworld 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" "+a7fc463dd8fbeca800d4b3efc501069502cffe64" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+a7fc463dd8fbeca800d4b3efc501069502cffe64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7c79eb95b81610985e1e39466ed8d3e07fdabb366cf1d7e43f538fa6374c110b [INFO] running `Command { std: "docker" "start" "-a" "7c79eb95b81610985e1e39466ed8d3e07fdabb366cf1d7e43f538fa6374c110b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7c79eb95b81610985e1e39466ed8d3e07fdabb366cf1d7e43f538fa6374c110b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7c79eb95b81610985e1e39466ed8d3e07fdabb366cf1d7e43f538fa6374c110b", kill_on_drop: false }` [INFO] [stdout] 7c79eb95b81610985e1e39466ed8d3e07fdabb366cf1d7e43f538fa6374c110b [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" "-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+a7fc463dd8fbeca800d4b3efc501069502cffe64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9c52c7e5bd3473c3a999557cbbbe8e0a7696c42ed022bc207e6cd6e61795f62c [INFO] running `Command { std: "docker" "start" "-a" "9c52c7e5bd3473c3a999557cbbbe8e0a7696c42ed022bc207e6cd6e61795f62c", kill_on_drop: false }` [INFO] [stderr] Checking helloworld v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::f32::consts::E` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::f32::consts::E; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::f32::consts::E` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::f32::consts::E; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Display` [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::fmt::Display; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Display` [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::fmt::Display; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `stdout` [INFO] [stdout] --> src/main.rs:3:21 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{self, stdout}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `stdout` [INFO] [stdout] --> src/main.rs:3:21 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{self, stdout}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `result` and `string` [INFO] [stdout] --> src/main.rs:5:11 [INFO] [stdout] | [INFO] [stdout] 5 | use std::{string, result}; [INFO] [stdout] | ^^^^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `result` and `string` [INFO] [stdout] --> src/main.rs:5:11 [INFO] [stdout] | [INFO] [stdout] 5 | use std::{string, result}; [INFO] [stdout] | ^^^^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `club` [INFO] [stdout] --> src/main.rs:99:13 [INFO] [stdout] | [INFO] [stdout] 99 | let club = self.clubs.get(remove_club_number-1).unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_club` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `club` [INFO] [stdout] --> src/main.rs:99:13 [INFO] [stdout] | [INFO] [stdout] 99 | let club = self.clubs.get(remove_club_number-1).unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_club` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name`, `compulsory`, and `teacher_name` are never read [INFO] [stdout] --> src/main.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 11 | struct Course { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 12 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 13 | compulsory: bool, //true 必修课，false 选修课 [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 14 | teacher_name: String, //授课老师 [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Course` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `content` are never read [INFO] [stdout] --> src/main.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 21 | struct Club { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 22 | name: String, //社团名称 [INFO] [stdout] | ^^^^ [INFO] [stdout] 23 | content: String, //社团职责内容 [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Club` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name`, `grade`, `faculty`, and `speciality` are never read [INFO] [stdout] --> src/main.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 30 | struct GradeClass { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] 31 | name:String, //班级名称 [INFO] [stdout] | ^^^^ [INFO] [stdout] 32 | grade: String, //年级 [INFO] [stdout] | ^^^^^ [INFO] [stdout] 33 | faculty: String, //院系 [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 34 | speciality: String, //专业 [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `GradeClass` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `age`, `gradeclass`, and `courses` are never read [INFO] [stdout] --> src/main.rs:77:5 [INFO] [stdout] | [INFO] [stdout] 75 | struct Student { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 76 | name: String, //姓名 [INFO] [stdout] 77 | age: u8, //年龄 [INFO] [stdout] | ^^^ [INFO] [stdout] 78 | gender: Gender, //性别 [INFO] [stdout] 79 | gradeclass: GradeClass, //班级 [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 80 | clubs: Vec, //参加的社团 [INFO] [stdout] 81 | courses: Vec, //学习的课程 [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Student` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `gradeClass` should have a snake case name [INFO] [stdout] --> src/main.rs:250:13 [INFO] [stdout] | [INFO] [stdout] 250 | let gradeClass = GradeClass { [INFO] [stdout] | ^^^^^^^^^^ help: convert the identifier to snake case: `grade_class` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name`, `compulsory`, and `teacher_name` are never read [INFO] [stdout] --> src/main.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 11 | struct Course { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 12 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 13 | compulsory: bool, //true 必修课，false 选修课 [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 14 | teacher_name: String, //授课老师 [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Course` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `helloworld` (bin "helloworld" test); 7 warnings emitted [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] No space left on device (os error 28) [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] failed to parse process output: `/opt/rustwide/rustup-home/toolchains/a7fc463dd8fbeca800d4b3efc501069502cffe64/bin/rustc --crate-name helloworld --edition=2021 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=f1e2bd4feaa54e2c -C extra-filename=-192ddc6932fc5529 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 1) [INFO] running `Command { std: "docker" "inspect" "9c52c7e5bd3473c3a999557cbbbe8e0a7696c42ed022bc207e6cd6e61795f62c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9c52c7e5bd3473c3a999557cbbbe8e0a7696c42ed022bc207e6cd6e61795f62c", kill_on_drop: false }` [INFO] [stdout] 9c52c7e5bd3473c3a999557cbbbe8e0a7696c42ed022bc207e6cd6e61795f62c