[INFO] cloning repository https://github.com/zhangrxiang/hello-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zhangrxiang/hello-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhangrxiang%2Fhello-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhangrxiang%2Fhello-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1b568410fbfcea0131c051287cb8f04e996165cf [INFO] checking zhangrxiang/hello-rust against beta for pr-78714 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhangrxiang%2Fhello-rust" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/zhangrxiang/hello-rust on toolchain beta [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/zhangrxiang/hello-rust [INFO] removed 0 missing examples [INFO] removed workspace from git repo https://github.com/zhangrxiang/hello-rust [INFO] finished tweaking git repo https://github.com/zhangrxiang/hello-rust [INFO] tweaked toml for git repo https://github.com/zhangrxiang/hello-rust written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/zhangrxiang/hello-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] error: the lock file /workspace/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag. [INFO] the lockfile is outdated, regenerating it [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] de13c0f1d68adaa69db48890b9f624a05f0960667cdc914041a34996d363429e [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "de13c0f1d68adaa69db48890b9f624a05f0960667cdc914041a34996d363429e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "de13c0f1d68adaa69db48890b9f624a05f0960667cdc914041a34996d363429e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de13c0f1d68adaa69db48890b9f624a05f0960667cdc914041a34996d363429e", kill_on_drop: false }` [INFO] [stdout] de13c0f1d68adaa69db48890b9f624a05f0960667cdc914041a34996d363429e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ea3f1c0991b6df3a3dbecaf9a1c4e2689b6d78c76c2ecfe00646cdb27963bbd7 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "ea3f1c0991b6df3a3dbecaf9a1c4e2689b6d78c76c2ecfe00646cdb27963bbd7", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Checking ucd-util v0.1.8 [INFO] [stderr] Checking utf8-ranges v1.0.4 [INFO] [stderr] Checking smallvec v0.4.5 [INFO] [stderr] Checking futures-channel v0.3.8 [INFO] [stderr] Checking bytestring v0.1.5 [INFO] [stderr] Compiling brotli-sys v0.3.2 [INFO] [stderr] Compiling libsqlite3-sys v0.17.3 [INFO] [stderr] Checking idna v0.2.0 [INFO] [stderr] Checking signal-hook-registry v1.2.2 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking parking_lot_core v0.8.0 [INFO] [stderr] Checking getrandom v0.1.15 [INFO] [stderr] Checking hostname v0.3.1 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking ioctl-rs v0.1.6 [INFO] [stderr] Checking termios v0.2.2 [INFO] [stderr] Checking serial-core v0.4.0 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking aho-corasick v0.6.10 [INFO] [stderr] Compiling syn v1.0.48 [INFO] [stderr] Checking mio v0.6.22 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking resolv-conf v0.6.3 [INFO] [stderr] Checking regex-syntax v0.5.6 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking threadpool v1.8.1 [INFO] [stderr] Checking env_logger v0.6.2 [INFO] [stderr] Checking serial-unix v0.4.0 [INFO] [stderr] Checking parking_lot v0.11.0 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking serial v0.4.0 [INFO] [stderr] Compiling miniz_oxide v0.4.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling indexmap v1.6.0 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking url v2.2.0 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking rust-crypto v0.2.36 [INFO] [stderr] Checking mio-uds v0.6.8 [INFO] [stderr] Checking tokio v0.2.23 [INFO] [stderr] Checking backtrace v0.3.54 [INFO] [stderr] Checking flate2 v1.0.19 [INFO] [stderr] Checking error-chain v0.10.0 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking regex v0.2.11 [INFO] [stderr] Checking ferris-says v0.1.2 [INFO] [stderr] Checking dotenv v0.9.0 [INFO] [stderr] Checking brotli2 v0.3.2 [INFO] [stderr] Checking tokio-util v0.3.1 [INFO] [stderr] Checking tokio-util v0.2.0 [INFO] [stderr] Checking actix-codec v0.2.0 [INFO] [stderr] Compiling synstructure v0.12.4 [INFO] [stderr] Checking rusqlite v0.21.0 [INFO] [stderr] Compiling pin-project-internal v1.0.1 [INFO] [stderr] Compiling futures-macro v0.3.8 [INFO] [stderr] Compiling pin-project-internal v0.4.27 [INFO] [stderr] Compiling derive_more v0.99.11 [INFO] [stderr] Compiling actix-macros v0.1.2 [INFO] [stderr] Compiling serde_derive v1.0.117 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling async-trait v0.1.41 [INFO] [stderr] Compiling enum-as-inner v0.3.3 [INFO] [stderr] Compiling diesel_derives v1.4.1 [INFO] [stderr] Compiling actix-web-codegen v0.2.2 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking pin-project v1.0.1 [INFO] [stderr] Checking futures-util v0.3.8 [INFO] [stderr] Checking pin-project v0.4.27 [INFO] [stderr] Checking tracing-futures v0.2.4 [INFO] [stderr] Checking actix-codec v0.3.0 [INFO] [stderr] Checking actix-threadpool v0.3.3 [INFO] [stderr] Checking serde v1.0.117 [INFO] [stderr] Checking diesel v1.4.5 [INFO] [stderr] Checking actix-service v1.0.6 [INFO] [stderr] Checking actix-rt v1.1.1 [INFO] [stderr] Checking futures-executor v0.3.8 [INFO] [stderr] Checking h2 v0.2.7 [INFO] [stderr] Checking futures v0.3.8 [INFO] [stderr] Checking trust-dns-proto v0.18.0-alpha.2 [INFO] [stderr] Checking actix-utils v1.0.6 [INFO] [stderr] Checking actix-utils v2.0.0 [INFO] [stderr] Checking actix-tls v1.0.0 [INFO] [stderr] Checking actix-server v1.0.4 [INFO] [stderr] Checking trust-dns-resolver v0.18.0-alpha.2 [INFO] [stderr] Checking actix-testing v1.0.1 [INFO] [stderr] Checking serde_urlencoded v0.6.1 [INFO] [stderr] Checking serde_json v1.0.59 [INFO] [stderr] Checking actix-router v0.2.5 [INFO] [stderr] Checking actix-connect v1.0.2 [INFO] [stderr] Checking actix-http v1.0.1 [INFO] [stderr] Checking awc v1.0.1 [INFO] [stderr] Checking actix-web v2.0.0 [INFO] [stderr] Checking hello-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `BufWriter` [INFO] [stdout] --> examples/uart.rs:5:15 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::{BufWriter, Cursor, Write}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BigEndian`, `ReadBytesExt`, `WriteBytesExt` [INFO] [stdout] --> examples/byteorder.rs:1:17 [INFO] [stdout] | [INFO] [stdout] 1 | use byteorder::{BigEndian, ReadBytesExt, WriteBytesExt}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Cursor` [INFO] [stdout] --> examples/byteorder.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::Cursor; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Write` [INFO] [stdout] --> examples/uart.rs:5:34 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::{BufWriter, Cursor, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> examples/uart.rs:38:25 [INFO] [stdout] | [INFO] [stdout] 38 | let mut i2 = rdr.read_i32::().unwrap() as usize; [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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::env::current_dir` [INFO] [stdout] --> examples/ls/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::env::current_dir; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> examples/tcp.rs:10:13 [INFO] [stdout] | [INFO] [stdout] 10 | stream.write(&data); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `main2` [INFO] [stdout] --> examples/ls/main.rs:12:4 [INFO] [stdout] | [INFO] [stdout] 12 | fn main2() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `visit_dirs` [INFO] [stdout] --> examples/ls/main.rs:16:4 [INFO] [stdout] | [INFO] [stdout] 16 | fn visit_dirs(dir: &Path, cb: &dyn Fn(&DirEntry)) -> io::Result<()> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition [INFO] [stdout] --> src/test/macro_rules.rs:12:1 [INFO] [stdout] | [INFO] [stdout] 12 | / macro_rules! first { [INFO] [stdout] 13 | | () => {}; [INFO] [stdout] 14 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_macros)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition [INFO] [stdout] --> src/test/macro_rules.rs:21:1 [INFO] [stdout] | [INFO] [stdout] 21 | / macro_rules! hello { [INFO] [stdout] 22 | | ($name:expr) => { [INFO] [stdout] 23 | | println!("hello {}", $name) [INFO] [stdout] 24 | | }; [INFO] [stdout] 25 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition [INFO] [stdout] --> src/test/macro_rules.rs:32:1 [INFO] [stdout] | [INFO] [stdout] 32 | / macro_rules! foo { [INFO] [stdout] 33 | | (x => $e:expr) => { [INFO] [stdout] 34 | | println!("mode X: {}", $e) [INFO] [stdout] 35 | | }; [INFO] [stdout] ... | [INFO] [stdout] 38 | | }; [INFO] [stdout] 39 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition [INFO] [stdout] --> src/test/macro_rules.rs:47:1 [INFO] [stdout] | [INFO] [stdout] 47 | / macro_rules! o_o { [INFO] [stdout] 48 | | ($($x:expr; [ $( $y:expr ),* ]);*) => {&[ $($( $x + $y ),*),* ]}} [INFO] [stdout] | |_________________________________________________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition [INFO] [stdout] --> src/test/macro_rules.rs:56:1 [INFO] [stdout] | [INFO] [stdout] 56 | / macro_rules! five_times { [INFO] [stdout] 57 | | ($x:expr) => { [INFO] [stdout] 58 | | 5 * $x [INFO] [stdout] 59 | | }; [INFO] [stdout] 60 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition [INFO] [stdout] --> src/test/macro_rules.rs:66:1 [INFO] [stdout] | [INFO] [stdout] 66 | / macro_rules! log { [INFO] [stdout] 67 | | ($msg:expr) => {{ [INFO] [stdout] 68 | | let state: i32 = 10; [INFO] [stdout] 69 | | if state > 0 { [INFO] [stdout] ... | [INFO] [stdout] 72 | | }}; [INFO] [stdout] 73 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition [INFO] [stdout] --> src/test/macro_rules.rs:81:1 [INFO] [stdout] | [INFO] [stdout] 81 | / macro_rules! foo2 { [INFO] [stdout] 82 | | ($v:ident) => { [INFO] [stdout] 83 | | let $v = 3; [INFO] [stdout] 84 | | }; [INFO] [stdout] 85 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2m 43s [INFO] running `Command { std: "docker" "inspect" "ea3f1c0991b6df3a3dbecaf9a1c4e2689b6d78c76c2ecfe00646cdb27963bbd7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ea3f1c0991b6df3a3dbecaf9a1c4e2689b6d78c76c2ecfe00646cdb27963bbd7", kill_on_drop: false }` [INFO] [stdout] ea3f1c0991b6df3a3dbecaf9a1c4e2689b6d78c76c2ecfe00646cdb27963bbd7