[INFO] cloning repository https://github.com/HatsuneMiku0309/node_addon_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HatsuneMiku0309/node_addon_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHatsuneMiku0309%2Fnode_addon_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHatsuneMiku0309%2Fnode_addon_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a79dfa8d5597be1fb5f6a2f9c3bd82b3b1405c0b
[INFO] checking HatsuneMiku0309/node_addon_rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHatsuneMiku0309%2Fnode_addon_rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HatsuneMiku0309/node_addon_rust on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/HatsuneMiku0309/node_addon_rust
[INFO] finished tweaking git repo https://github.com/HatsuneMiku0309/node_addon_rust
[INFO] tweaked toml for git repo https://github.com/HatsuneMiku0309/node_addon_rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/HatsuneMiku0309/node_addon_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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ctor v0.1.22
[INFO] [stderr]   Downloaded napi v2.6.3
[INFO] [stderr]   Downloaded napi-sys v2.2.2
[INFO] [stderr]   Downloaded napi-build v2.0.1
[INFO] [stderr]   Downloaded napi-derive v2.6.0
[INFO] [stderr]   Downloaded napi-derive-backend v1.0.34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22a799d9c2042310f73b3b81a732ec2c5187b1d9be713b6c5de2400a499074d1
[INFO] running `Command { std: "docker" "start" "-a" "22a799d9c2042310f73b3b81a732ec2c5187b1d9be713b6c5de2400a499074d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22a799d9c2042310f73b3b81a732ec2c5187b1d9be713b6c5de2400a499074d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22a799d9c2042310f73b3b81a732ec2c5187b1d9be713b6c5de2400a499074d1", kill_on_drop: false }`
[INFO] [stdout] 22a799d9c2042310f73b3b81a732ec2c5187b1d9be713b6c5de2400a499074d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f95afb06331ba794be3a42919943e41ad8bab83d57ad06675066994ecd6eba4
[INFO] running `Command { std: "docker" "start" "-a" "6f95afb06331ba794be3a42919943e41ad8bab83d57ad06675066994ecd6eba4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]    Compiling napi-build v2.0.1
[INFO] [stderr]    Compiling convert_case v0.5.0
[INFO] [stderr]    Compiling node_addon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking napi-sys v2.2.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling napi-derive-backend v1.0.34
[INFO] [stderr]    Compiling ctor v0.1.22
[INFO] [stderr]    Compiling napi-derive v2.6.0
[INFO] [stderr]     Checking napi v2.6.3
[INFO] [stdout] warning: function `fibonacci` is never used
[INFO] [stdout]  --> src/lib.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn fibonacci(n: u32) -> u32 {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_cwd` is never used
[INFO] [stdout]   --> src/lib.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn get_cwd<T: Fn(String) -> Result<()>>(callback: T) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_callback` is never used
[INFO] [stdout]   --> src/lib.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn test_callback<T>(_callback: T)
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.02s
[INFO] running `Command { std: "docker" "inspect" "6f95afb06331ba794be3a42919943e41ad8bab83d57ad06675066994ecd6eba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f95afb06331ba794be3a42919943e41ad8bab83d57ad06675066994ecd6eba4", kill_on_drop: false }`
[INFO] [stdout] 6f95afb06331ba794be3a42919943e41ad8bab83d57ad06675066994ecd6eba4
[INFO] checking HatsuneMiku0309/node_addon_rust against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHatsuneMiku0309%2Fnode_addon_rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HatsuneMiku0309/node_addon_rust on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/HatsuneMiku0309/node_addon_rust
[INFO] finished tweaking git repo https://github.com/HatsuneMiku0309/node_addon_rust
[INFO] tweaked toml for git repo https://github.com/HatsuneMiku0309/node_addon_rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/HatsuneMiku0309/node_addon_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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 147fe7bedae5fa41413fc36b07405f0c19ad95fa5319c7fe6a725ad38aa600d6
[INFO] running `Command { std: "docker" "start" "-a" "147fe7bedae5fa41413fc36b07405f0c19ad95fa5319c7fe6a725ad38aa600d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "147fe7bedae5fa41413fc36b07405f0c19ad95fa5319c7fe6a725ad38aa600d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "147fe7bedae5fa41413fc36b07405f0c19ad95fa5319c7fe6a725ad38aa600d6", kill_on_drop: false }`
[INFO] [stdout] 147fe7bedae5fa41413fc36b07405f0c19ad95fa5319c7fe6a725ad38aa600d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 131c845184ca9a468da9d79e0ee8bf7bf86723ef8fa5c24ee0ab12dba8d66bb0
[INFO] running `Command { std: "docker" "start" "-a" "131c845184ca9a468da9d79e0ee8bf7bf86723ef8fa5c24ee0ab12dba8d66bb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling napi-build v2.0.1
[INFO] [stderr]    Compiling once_cell v1.13.0
[INFO] [stderr]    Compiling convert_case v0.5.0
[INFO] [stderr]    Compiling node_addon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking napi-sys v2.2.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling napi-derive-backend v1.0.34
[INFO] [stderr]    Compiling ctor v0.1.22
[INFO] [stderr]    Compiling napi-derive v2.6.0
[INFO] [stderr]     Checking napi v2.6.3
[INFO] [stdout] warning: function `fibonacci` is never used
[INFO] [stdout]  --> src/lib.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn fibonacci(n: u32) -> u32 {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_cwd` is never used
[INFO] [stdout]   --> src/lib.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn get_cwd<T: Fn(String) -> Result<()>>(callback: T) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_callback` is never used
[INFO] [stdout]   --> src/lib.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn test_callback<T>(_callback: T)
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.34s
[INFO] running `Command { std: "docker" "inspect" "131c845184ca9a468da9d79e0ee8bf7bf86723ef8fa5c24ee0ab12dba8d66bb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "131c845184ca9a468da9d79e0ee8bf7bf86723ef8fa5c24ee0ab12dba8d66bb0", kill_on_drop: false }`
[INFO] [stdout] 131c845184ca9a468da9d79e0ee8bf7bf86723ef8fa5c24ee0ab12dba8d66bb0