[INFO] cloning repository https://github.com/S-H-GAMELINKS/rust_hello_world_ruby_extension
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/S-H-GAMELINKS/rust_hello_world_ruby_extension" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FS-H-GAMELINKS%2Frust_hello_world_ruby_extension", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FS-H-GAMELINKS%2Frust_hello_world_ruby_extension'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 556f85c35ddafb14be4bd4a5260105dcce2f2276
[INFO] checking S-H-GAMELINKS/rust_hello_world_ruby_extension against try#6619027b13a87a3597115f2c8231f107bf3a7a5f for pr-139624
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FS-H-GAMELINKS%2Frust_hello_world_ruby_extension" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/S-H-GAMELINKS/rust_hello_world_ruby_extension on toolchain 6619027b13a87a3597115f2c8231f107bf3a7a5f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/S-H-GAMELINKS/rust_hello_world_ruby_extension
[INFO] finished tweaking git repo https://github.com/S-H-GAMELINKS/rust_hello_world_ruby_extension
[INFO] tweaked toml for git repo https://github.com/S-H-GAMELINKS/rust_hello_world_ruby_extension written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/S-H-GAMELINKS/rust_hello_world_ruby_extension 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" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbe6116e199591a636d7628bee50b01a20f3ff60597b0da2b57f6dd9bb47b3c1
[INFO] running `Command { std: "docker" "start" "-a" "dbe6116e199591a636d7628bee50b01a20f3ff60597b0da2b57f6dd9bb47b3c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbe6116e199591a636d7628bee50b01a20f3ff60597b0da2b57f6dd9bb47b3c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbe6116e199591a636d7628bee50b01a20f3ff60597b0da2b57f6dd9bb47b3c1", kill_on_drop: false }`
[INFO] [stdout] dbe6116e199591a636d7628bee50b01a20f3ff60597b0da2b57f6dd9bb47b3c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e7c0e83bbd5b3f78f06e0c88c1fbf28056e96b9fbba875b3f9de79b865dc4ec
[INFO] running `Command { std: "docker" "start" "-a" "0e7c0e83bbd5b3f78f06e0c88c1fbf28056e96b9fbba875b3f9de79b865dc4ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.113
[INFO] [stderr]     Checking rust_hello_world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern {
[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: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> src/lib.rs:7:67
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn rb_define_global_function(name: *const libc::c_char, func: extern fn(), argc: libc::c_int);
[INFO] [stdout]   |                                                                   ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern fn hello_world() {
[INFO] [stdout]    | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub extern fn Init_librust_hello_world() {
[INFO] [stdout]    |     ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern {
[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: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> src/lib.rs:7:67
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn rb_define_global_function(name: *const libc::c_char, func: extern fn(), argc: libc::c_int);
[INFO] [stdout]   |                                                                   ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern fn hello_world() {
[INFO] [stdout]    | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub extern fn Init_librust_hello_world() {
[INFO] [stdout]    |     ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "0e7c0e83bbd5b3f78f06e0c88c1fbf28056e96b9fbba875b3f9de79b865dc4ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e7c0e83bbd5b3f78f06e0c88c1fbf28056e96b9fbba875b3f9de79b865dc4ec", kill_on_drop: false }`
[INFO] [stdout] 0e7c0e83bbd5b3f78f06e0c88c1fbf28056e96b9fbba875b3f9de79b865dc4ec