[INFO] cloning repository https://github.com/jasal82/metabuild
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jasal82/metabuild" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasal82%2Fmetabuild", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasal82%2Fmetabuild'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4d621fec685479f4e0ec3fc29634fc041a656906
[INFO] checking jasal82/metabuild against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasal82%2Fmetabuild" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jasal82/metabuild on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jasal82/metabuild
[INFO] finished tweaking git repo https://github.com/jasal82/metabuild
[INFO] tweaked toml for git repo https://github.com/jasal82/metabuild written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jasal82/metabuild 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] [stderr]   Downloaded tera v1.18.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 140f420b0da46af2c270c0f9410e3570b06398126ade9d9ec9f261a934b54bdc
[INFO] running `Command { std: "docker" "start" "-a" "140f420b0da46af2c270c0f9410e3570b06398126ade9d9ec9f261a934b54bdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "140f420b0da46af2c270c0f9410e3570b06398126ade9d9ec9f261a934b54bdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "140f420b0da46af2c270c0f9410e3570b06398126ade9d9ec9f261a934b54bdc", kill_on_drop: false }`
[INFO] [stdout] 140f420b0da46af2c270c0f9410e3570b06398126ade9d9ec9f261a934b54bdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc04792c2462f860961ba0d3216296f6e3e9caf3388cc6a51e2ab3d064c1e7ad
[INFO] running `Command { std: "docker" "start" "-a" "cc04792c2462f860961ba0d3216296f6e3e9caf3388cc6a51e2ab3d064c1e7ad", kill_on_drop: false }`
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[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling pear_codegen v0.2.4
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[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/scripting/api/io.rs:96:23
[INFO] [stdout]    |
[INFO] [stdout] 96 |             .map_err(|e| make_runtime_error!(format!("Failed to create directory {path}")))?
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/scripting/api/io.rs:193:23
[INFO] [stdout]     |
[INFO] [stdout] 193 |             .map_err(|e| make_runtime_error!("Failed to fetch file metadata: {e}"))?;
[INFO] [stdout]     |                       ^ unused variable      ------------------------------------ you might have meant to use string interpolation in this string literal
[INFO] [stdout]     |
[INFO] [stdout] help: string interpolation only works in `format!` invocations
[INFO] [stdout]     |
[INFO] [stdout] 193 |             .map_err(|e| make_runtime_error!(format!("Failed to fetch file metadata: {e}")))?;
[INFO] [stdout]     |                                              ++++++++                                    +
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 193 |             .map_err(|_e| make_runtime_error!("Failed to fetch file metadata: {e}"))?;
[INFO] [stdout]     |                       ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/scripting/api/io.rs:96:23
[INFO] [stdout]    |
[INFO] [stdout] 96 |             .map_err(|e| make_runtime_error!(format!("Failed to create directory {path}")))?
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/scripting/api/net.rs:56:23
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn display(&self, ctx: &mut DisplayContext) -> Result<()> {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/scripting/api/net.rs:91:30
[INFO] [stdout]    |
[INFO] [stdout] 91 |     result.add_fn("client", |ctx| Ok(Client::new().into()));
[INFO] [stdout]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/scripting/api/io.rs:193:23
[INFO] [stdout]     |
[INFO] [stdout] 193 |             .map_err(|e| make_runtime_error!("Failed to fetch file metadata: {e}"))?;
[INFO] [stdout]     |                       ^ unused variable      ------------------------------------ you might have meant to use string interpolation in this string literal
[INFO] [stdout]     |
[INFO] [stdout] help: string interpolation only works in `format!` invocations
[INFO] [stdout]     |
[INFO] [stdout] 193 |             .map_err(|e| make_runtime_error!(format!("Failed to fetch file metadata: {e}")))?;
[INFO] [stdout]     |                                              ++++++++                                    +
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 193 |             .map_err(|_e| make_runtime_error!("Failed to fetch file metadata: {e}"))?;
[INFO] [stdout]     |                       ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/scripting/api/net.rs:56:23
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn display(&self, ctx: &mut DisplayContext) -> Result<()> {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/scripting/api/net.rs:91:30
[INFO] [stdout]    |
[INFO] [stdout] 91 |     result.add_fn("client", |ctx| Ok(Client::new().into()));
[INFO] [stdout]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Registry` is never constructed
[INFO] [stdout]  --> src/deps/registry.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Registry {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new`, `get_cache_path`, and `open_or_clone` are never used
[INFO] [stdout]   --> src/deps/registry.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Registry {
[INFO] [stdout]    | ------------- associated functions in this implementation
[INFO] [stdout] 14 |     pub fn new(url: &str, cache_base: &Path) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn get_cache_path(cache_base: &Path, url: &str) -> Result<PathBuf, anyhow::Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn open_or_clone(url: &str, cache_base: &Path) -> Result<Repository, anyhow::Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `url` and `repo` are never read
[INFO] [stdout]   --> src/deps/registry.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Registry {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 9  |     url: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     repo: Repository,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/deps/registry.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Registry {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 14 |     pub fn new(url: &str, cache_base: &Path) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.20s
[INFO] running `Command { std: "docker" "inspect" "cc04792c2462f860961ba0d3216296f6e3e9caf3388cc6a51e2ab3d064c1e7ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc04792c2462f860961ba0d3216296f6e3e9caf3388cc6a51e2ab3d064c1e7ad", kill_on_drop: false }`
[INFO] [stdout] cc04792c2462f860961ba0d3216296f6e3e9caf3388cc6a51e2ab3d064c1e7ad