[INFO] cloning repository https://github.com/WmFreeSmile/xw_lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WmFreeSmile/xw_lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWmFreeSmile%2Fxw_lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWmFreeSmile%2Fxw_lang'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWmFreeSmile%2Fxw_lang: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/WmFreeSmile/xw_lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WmFreeSmile/xw_lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWmFreeSmile%2Fxw_lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWmFreeSmile%2Fxw_lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 655f52f572af7979bba9a17fc75b5ea977fd1db9
[INFO] checking WmFreeSmile/xw_lang against master#c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2 for pr-142712
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWmFreeSmile%2Fxw_lang" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/WmFreeSmile/xw_lang
[INFO] finished tweaking git repo https://github.com/WmFreeSmile/xw_lang
[INFO] tweaked toml for git repo https://github.com/WmFreeSmile/xw_lang written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/WmFreeSmile/xw_lang on toolchain c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/WmFreeSmile/xw_lang 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" "+c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 747f53091e7d35e13fedbcdd7531c278406e1ac2bd6f8a67786d0cb25236b069
[INFO] running `Command { std: "docker" "start" "-a" "747f53091e7d35e13fedbcdd7531c278406e1ac2bd6f8a67786d0cb25236b069", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "747f53091e7d35e13fedbcdd7531c278406e1ac2bd6f8a67786d0cb25236b069", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "747f53091e7d35e13fedbcdd7531c278406e1ac2bd6f8a67786d0cb25236b069", kill_on_drop: false }`
[INFO] [stdout] 747f53091e7d35e13fedbcdd7531c278406e1ac2bd6f8a67786d0cb25236b069
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3fecb41a450e2502067c5e218b48a40a54a7490fcb48ff856f08b728397e9ca2
[INFO] running `Command { std: "docker" "start" "-a" "3fecb41a450e2502067c5e218b48a40a54a7490fcb48ff856f08b728397e9ca2", kill_on_drop: false }`
[INFO] [stderr]     Checking xw_lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `thread` and `vec`
[INFO] [stdout]  --> src/vm/mod.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{thread, vec};
[INFO] [stdout]   |           ^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `thread` and `vec`
[INFO] [stdout]  --> src/vm/mod.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{thread, vec};
[INFO] [stdout]   |           ^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `create_thread_context`, `sweep_old`, and `collect_old` are never used
[INFO] [stdout]    --> src/vm/mod.rs:78:8
[INFO] [stdout]     |
[INFO] [stdout] 38  | impl Vm {
[INFO] [stdout]     | ------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 78  |     fn create_thread_context(&mut self) -> Arc<Mutex<ThreadContext>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 159 |     fn sweep_old(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 182 |     fn collect_old(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `create_thread_context`, `sweep_old`, and `collect_old` are never used
[INFO] [stdout]    --> src/vm/mod.rs:78:8
[INFO] [stdout]     |
[INFO] [stdout] 38  | impl Vm {
[INFO] [stdout]     | ------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 78  |     fn create_thread_context(&mut self) -> Arc<Mutex<ThreadContext>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 159 |     fn sweep_old(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 182 |     fn collect_old(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push`, and `pop` are never used
[INFO] [stdout]    --> src/vm/mod.rs:225:8
[INFO] [stdout]     |
[INFO] [stdout] 224 | impl OperandStack {
[INFO] [stdout]     | ----------------- associated items in this implementation
[INFO] [stdout] 225 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 229 |     fn push(&mut self, obj: *mut Object) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 233 |     fn pop(&mut self) -> Option<*mut Object> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/vm/mod.rs:244:8
[INFO] [stdout]     |
[INFO] [stdout] 243 | impl ThreadContext {
[INFO] [stdout]     | ------------------ associated function in this implementation
[INFO] [stdout] 244 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push`, and `pop` are never used
[INFO] [stdout]    --> src/vm/mod.rs:225:8
[INFO] [stdout]     |
[INFO] [stdout] 224 | impl OperandStack {
[INFO] [stdout]     | ----------------- associated items in this implementation
[INFO] [stdout] 225 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 229 |     fn push(&mut self, obj: *mut Object) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 233 |     fn pop(&mut self) -> Option<*mut Object> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/vm/mod.rs:244:8
[INFO] [stdout]     |
[INFO] [stdout] 243 | impl ThreadContext {
[INFO] [stdout]     | ------------------ associated function in this implementation
[INFO] [stdout] 244 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "3fecb41a450e2502067c5e218b48a40a54a7490fcb48ff856f08b728397e9ca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fecb41a450e2502067c5e218b48a40a54a7490fcb48ff856f08b728397e9ca2", kill_on_drop: false }`
[INFO] [stdout] 3fecb41a450e2502067c5e218b48a40a54a7490fcb48ff856f08b728397e9ca2