[INFO] cloning repository https://github.com/wang12d/Go-calling-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wang12d/Go-calling-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwang12d%2FGo-calling-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwang12d%2FGo-calling-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5c0cdfe58098de0b72b67f9f7e7a6c3028c6a370
[INFO] checking wang12d/Go-calling-Rust against try#1f308f12738d8cc40bb23bf0c8114b37c164bb49 for pr-137268
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwang12d%2FGo-calling-Rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wang12d/Go-calling-Rust on toolchain 1f308f12738d8cc40bb23bf0c8114b37c164bb49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wang12d/Go-calling-Rust
[INFO] finished tweaking git repo https://github.com/wang12d/Go-calling-Rust
[INFO] tweaked toml for git repo https://github.com/wang12d/Go-calling-Rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/wang12d/Go-calling-Rust 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" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking wang12d/Go-calling-Rust against try#1f308f12738d8cc40bb23bf0c8114b37c164bb49 for pr-137268
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwang12d%2FGo-calling-Rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wang12d/Go-calling-Rust on toolchain 1f308f12738d8cc40bb23bf0c8114b37c164bb49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wang12d/Go-calling-Rust
[INFO] finished tweaking git repo https://github.com/wang12d/Go-calling-Rust
[INFO] tweaked toml for git repo https://github.com/wang12d/Go-calling-Rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/wang12d/Go-calling-Rust 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" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe91117f8552c604b8cbb48a7c8107fef4631bf105a5a77e0758661634c06854
[INFO] running `Command { std: "docker" "start" "-a" "fe91117f8552c604b8cbb48a7c8107fef4631bf105a5a77e0758661634c06854", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe91117f8552c604b8cbb48a7c8107fef4631bf105a5a77e0758661634c06854", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe91117f8552c604b8cbb48a7c8107fef4631bf105a5a77e0758661634c06854", kill_on_drop: false }`
[INFO] [stdout] fe91117f8552c604b8cbb48a7c8107fef4631bf105a5a77e0758661634c06854
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0690eadcb6e5c34682a9dbb9f64da7874dcc73cca2c3313695b3e81de4a5bbed
[INFO] running `Command { std: "docker" "start" "-a" "0690eadcb6e5c34682a9dbb9f64da7874dcc73cca2c3313695b3e81de4a5bbed", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]     Checking go-calling-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ptr::read`
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::ptr::read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub extern fn hello() -> *const c_char {
[INFO] [stdout]    |     ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]  --> src/lib.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::{Once, ONCE_INIT};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]  --> src/lib.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 | static START: Once = ONCE_INIT;
[INFO] [stdout]   |                      ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]   |
[INFO] [stdout] 9 - static START: Once = ONCE_INIT;
[INFO] [stdout] 9 + static START: Once = Once::new();
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr::read`
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::ptr::read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub extern fn hello() -> *const c_char {
[INFO] [stdout]    |     ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `data` should have an upper case name
[INFO] [stdout]   --> src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | static mut data:*const CString = 0 as *const CString;
[INFO] [stdout]    |            ^^^^ help: convert the identifier to upper case: `DATA`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]  --> src/lib.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::{Once, ONCE_INIT};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]  --> src/lib.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 | static START: Once = ONCE_INIT;
[INFO] [stdout]   |                      ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]   |
[INFO] [stdout] 9 - static START: Once = ONCE_INIT;
[INFO] [stdout] 9 + static START: Once = Once::new();
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `data` should have an upper case name
[INFO] [stdout]   --> src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | static mut data:*const CString = 0 as *const CString;
[INFO] [stdout]    |            ^^^^ help: convert the identifier to upper case: `DATA`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "0690eadcb6e5c34682a9dbb9f64da7874dcc73cca2c3313695b3e81de4a5bbed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0690eadcb6e5c34682a9dbb9f64da7874dcc73cca2c3313695b3e81de4a5bbed", kill_on_drop: false }`
[INFO] [stdout] 0690eadcb6e5c34682a9dbb9f64da7874dcc73cca2c3313695b3e81de4a5bbed