[INFO] cloning repository https://github.com/pjzhong/rust_practice [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pjzhong/rust_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpjzhong%2Frust_practice", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpjzhong%2Frust_practice'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ab6ce2210160a3218fd7638d07d8e484d397f814 [INFO] checking pjzhong/rust_practice against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpjzhong%2Frust_practice" "/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/pjzhong/rust_practice on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/pjzhong/rust_practice [INFO] finished tweaking git repo https://github.com/pjzhong/rust_practice [INFO] tweaked toml for git repo https://github.com/pjzhong/rust_practice written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/pjzhong/rust_practice already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4bc53357f3bc303e633e33a8ee4dd79c9817992dbb021afd56a0e40aaae1220c [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" "4bc53357f3bc303e633e33a8ee4dd79c9817992dbb021afd56a0e40aaae1220c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4bc53357f3bc303e633e33a8ee4dd79c9817992dbb021afd56a0e40aaae1220c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4bc53357f3bc303e633e33a8ee4dd79c9817992dbb021afd56a0e40aaae1220c", kill_on_drop: false }` [INFO] [stdout] 4bc53357f3bc303e633e33a8ee4dd79c9817992dbb021afd56a0e40aaae1220c [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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 5ed9fee354a0d88f11c48e6989dd8117aeb0de52519308e19b58f13502f2258c [INFO] running `Command { std: "docker" "start" "-a" "5ed9fee354a0d88f11c48e6989dd8117aeb0de52519308e19b58f13502f2258c", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling libc v0.2.91 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Compiling xml-rs v0.8.3 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Checking once_cell v1.7.2 [INFO] [stderr] Compiling cc v1.0.67 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Checking xdg v2.2.0 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Compiling crc32fast v1.2.1 [INFO] [stderr] Checking adler32 v1.2.0 [INFO] [stderr] Checking weezl v0.1.4 [INFO] [stderr] Compiling vulkano v0.21.0 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking percent-encoding v2.1.0 [INFO] [stderr] Checking vk-sys v0.6.0 [INFO] [stderr] Checking color_quant v1.1.0 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking scoped_threadpool v0.1.9 [INFO] [stderr] Checking bytemuck v1.5.1 [INFO] [stderr] Checking algorithms v0.1.0 (/opt/rustwide/workdir/algorithms) [INFO] [stderr] Checking rust_practice v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking learn v0.1.0 (/opt/rustwide/workdir/learn) [INFO] [stderr] Checking libloading v0.7.0 [INFO] [stderr] Checking instant v0.1.9 [INFO] [stderr] Checking libloading v0.6.7 [INFO] [stderr] Checking lock_api v0.4.3 [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> learn/src/esc/mod.rs:86:9 [INFO] [stdout] | [INFO] [stdout] 86 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking miniz_oxide v0.3.7 [INFO] [stdout] warning: function is never used: `run` [INFO] [stdout] --> learn/src/chapter20/web_server.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `handle_connection` [INFO] [stdout] --> learn/src/chapter20/web_server.rs:28:4 [INFO] [stdout] | [INFO] [stdout] 28 | fn handle_connection(mut stream: TcpStream) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `write` [INFO] [stdout] --> learn/src/chapter20/web_server.rs:62:4 [INFO] [stdout] | [INFO] [stdout] 62 | fn write(stream: &mut TcpStream, response: String) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `NewJob` [INFO] [stdout] --> learn/src/chapter20/thread_pool.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | NewJob(Job), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> learn/src/chapter20/thread_pool.rs:22:8 [INFO] [stdout] | [INFO] [stdout] 22 | fn new(id: usize, receiver: Arc>>) -> Worker { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> learn/src/chapter20/thread_pool.rs:46:12 [INFO] [stdout] | [INFO] [stdout] 46 | pub fn new(size: usize) -> ThreadPool { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `execute` [INFO] [stdout] --> learn/src/chapter20/thread_pool.rs:61:12 [INFO] [stdout] | [INFO] [stdout] 61 | pub fn execute(&self, f: F) [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `World` [INFO] [stdout] --> learn/src/esc/mod.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct World { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> learn/src/esc/mod.rs:29:8 [INFO] [stdout] | [INFO] [stdout] 29 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new_entity` [INFO] [stdout] --> learn/src/esc/mod.rs:36:8 [INFO] [stdout] | [INFO] [stdout] 36 | fn new_entity(&mut self) -> usize { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add_component_to_entity` [INFO] [stdout] --> learn/src/esc/mod.rs:45:8 [INFO] [stdout] | [INFO] [stdout] 45 | fn add_component_to_entity( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `borrow_component_vec` [INFO] [stdout] --> learn/src/esc/mod.rs:71:8 [INFO] [stdout] | [INFO] [stdout] 71 | fn borrow_component_vec(&self) -> Option<&Vec>> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Heath` [INFO] [stdout] --> learn/src/esc/mod.rs:88:12 [INFO] [stdout] | [INFO] [stdout] 88 | struct Heath(i32); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Name` [INFO] [stdout] --> learn/src/esc/mod.rs:89:12 [INFO] [stdout] | [INFO] [stdout] 89 | struct Name(String); [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `No` [INFO] [stdout] --> learn/src/esc/mod.rs:90:12 [INFO] [stdout] | [INFO] [stdout] 90 | struct No(Option); [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling nom v6.1.2 [INFO] [stderr] Checking deflate v0.8.6 [INFO] [stderr] Checking gif v0.11.2 [INFO] [stdout] warning: function is never used: `run` [INFO] [stdout] --> learn/src/chapter20/web_server.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `handle_connection` [INFO] [stdout] --> learn/src/chapter20/web_server.rs:28:4 [INFO] [stdout] | [INFO] [stdout] 28 | fn handle_connection(mut stream: TcpStream) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `write` [INFO] [stdout] --> learn/src/chapter20/web_server.rs:62:4 [INFO] [stdout] | [INFO] [stdout] 62 | fn write(stream: &mut TcpStream, response: String) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `NewJob` [INFO] [stdout] --> learn/src/chapter20/thread_pool.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | NewJob(Job), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> learn/src/chapter20/thread_pool.rs:22:8 [INFO] [stdout] | [INFO] [stdout] 22 | fn new(id: usize, receiver: Arc>>) -> Worker { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> learn/src/chapter20/thread_pool.rs:46:12 [INFO] [stdout] | [INFO] [stdout] 46 | pub fn new(size: usize) -> ThreadPool { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `execute` [INFO] [stdout] --> learn/src/chapter20/thread_pool.rs:61:12 [INFO] [stdout] | [INFO] [stdout] 61 | pub fn execute(&self, f: F) [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling crossbeam-utils v0.8.3 [INFO] [stderr] Compiling memoffset v0.6.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling num-rational v0.3.2 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling cmake v0.1.45 [INFO] [stderr] Checking dlib v0.4.2 [INFO] [stderr] Checking dlib v0.5.0 [INFO] [stderr] Compiling wayland-sys v0.28.5 [INFO] [stderr] Compiling x11-dl v2.18.5 [INFO] [stderr] Checking andrew v0.3.1 [INFO] [stderr] Checking png v0.16.8 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling shaderc-sys v0.6.3 [INFO] [stderr] Checking crossbeam-epoch v0.9.3 [INFO] [stderr] Checking crossbeam-channel v0.5.0 [INFO] [stderr] Checking crossbeam-queue v0.3.1 [INFO] [stderr] Compiling wayland-scanner v0.28.5 [INFO] [stderr] Compiling syn v1.0.67 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking crossbeam v0.8.0 [INFO] [stderr] Checking xcursor v0.3.3 [INFO] [stderr] Checking nix v0.20.0 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking net2 v0.2.37 [INFO] [stderr] Checking nix v0.18.0 [INFO] [stderr] Checking memmap2 v0.1.0 [INFO] [stderr] Checking raw-window-handle v0.3.3 [INFO] [stderr] Checking shared_library v0.1.9 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Compiling wayland-client v0.28.5 [INFO] [stderr] Compiling wayland-protocols v0.28.5 [INFO] [stderr] Checking mio-extras v2.0.6 [INFO] [stderr] error: could not compile `syn` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.67/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=b7b398e7ccc37975 -C extra-filename=-b7b398e7ccc37975 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-68d422dfc8864dc7.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-cfc781dd86a6c62d.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-4182131ee577b5da.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] The following warnings were emitted during compilation: [INFO] [stderr] [INFO] [stderr] warning: Checking for system installed libraries. Use --features = build-from-source to disable this behavior [INFO] [stderr] warning: System installed library not found. Falling back to build from source [INFO] [stderr] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "5ed9fee354a0d88f11c48e6989dd8117aeb0de52519308e19b58f13502f2258c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5ed9fee354a0d88f11c48e6989dd8117aeb0de52519308e19b58f13502f2258c", kill_on_drop: false }` [INFO] [stdout] 5ed9fee354a0d88f11c48e6989dd8117aeb0de52519308e19b58f13502f2258c