[INFO] fetching crate named_args 0.0.1...
[INFO] testing named_args-0.0.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate named_args 0.0.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate named_args 0.0.1
[INFO] finished tweaking crates.io crate named_args 0.0.1
[INFO] tweaked toml for crates.io crate named_args 0.0.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate named_args 0.0.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate named_args 0.0.1 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37a48d82707e1fd1e9e425f0bf441f9185d501fe1a2bf184c50afd9fb468832f
[INFO] running `Command { std: "docker" "start" "-a" "37a48d82707e1fd1e9e425f0bf441f9185d501fe1a2bf184c50afd9fb468832f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37a48d82707e1fd1e9e425f0bf441f9185d501fe1a2bf184c50afd9fb468832f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37a48d82707e1fd1e9e425f0bf441f9185d501fe1a2bf184c50afd9fb468832f", kill_on_drop: false }`
[INFO] [stdout] 37a48d82707e1fd1e9e425f0bf441f9185d501fe1a2bf184c50afd9fb468832f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 508a4b81813eaebad473debb2c47d3fc2896f3f029c58df318c33066bfd42b90
[INFO] running `Command { std: "docker" "start" "-a" "508a4b81813eaebad473debb2c47d3fc2896f3f029c58df318c33066bfd42b90", kill_on_drop: false }`
[INFO] [stderr]    Compiling named_args v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/poc.rs:12:24
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn func(&self, x: Option<i32>, y: i32, z: Option<i32>) {
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/poc.rs:12:40
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn func(&self, x: Option<i32>, y: i32, z: Option<i32>) {
[INFO] [stdout]    |                                        ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/poc.rs:12:48
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn func(&self, x: Option<i32>, y: i32, z: Option<i32>) {
[INFO] [stdout]    |                                                ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "508a4b81813eaebad473debb2c47d3fc2896f3f029c58df318c33066bfd42b90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "508a4b81813eaebad473debb2c47d3fc2896f3f029c58df318c33066bfd42b90", kill_on_drop: false }`
[INFO] [stdout] 508a4b81813eaebad473debb2c47d3fc2896f3f029c58df318c33066bfd42b90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2ee8bed3cc5dae8b2b6cc7fe25c9eb910c726e904cfe042ef06f5f6566e66f0
[INFO] running `Command { std: "docker" "start" "-a" "a2ee8bed3cc5dae8b2b6cc7fe25c9eb910c726e904cfe042ef06f5f6566e66f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling named_args v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/poc.rs:12:24
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn func(&self, x: Option<i32>, y: i32, z: Option<i32>) {
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/poc.rs:12:40
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn func(&self, x: Option<i32>, y: i32, z: Option<i32>) {
[INFO] [stdout]    |                                        ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/poc.rs:12:48
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn func(&self, x: Option<i32>, y: i32, z: Option<i32>) {
[INFO] [stdout]    |                                                ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "a2ee8bed3cc5dae8b2b6cc7fe25c9eb910c726e904cfe042ef06f5f6566e66f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2ee8bed3cc5dae8b2b6cc7fe25c9eb910c726e904cfe042ef06f5f6566e66f0", kill_on_drop: false }`
[INFO] [stdout] a2ee8bed3cc5dae8b2b6cc7fe25c9eb910c726e904cfe042ef06f5f6566e66f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fc1afba55cc00e380d969e4613075bfa844a61dd887f7ed3ee1b7385b133105f
[INFO] running `Command { std: "docker" "start" "-a" "fc1afba55cc00e380d969e4613075bfa844a61dd887f7ed3ee1b7385b133105f", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/poc.rs:12:24
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn func(&self, x: Option<i32>, y: i32, z: Option<i32>) {
[INFO] [stderr]    |                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/poc.rs:12:40
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn func(&self, x: Option<i32>, y: i32, z: Option<i32>) {
[INFO] [stderr]    |                                        ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `z`
[INFO] [stderr]   --> src/poc.rs:12:48
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn func(&self, x: Option<i32>, y: i32, z: Option<i32>) {
[INFO] [stderr]    |                                                ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stderr] 
[INFO] [stderr] warning: `named_args` (bin "named_args" test) generated 3 warnings (run `cargo fix --bin "named_args" -p named_args --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/named_args-60e40b7ecb8c0cd0)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fc1afba55cc00e380d969e4613075bfa844a61dd887f7ed3ee1b7385b133105f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc1afba55cc00e380d969e4613075bfa844a61dd887f7ed3ee1b7385b133105f", kill_on_drop: false }`
[INFO] [stdout] fc1afba55cc00e380d969e4613075bfa844a61dd887f7ed3ee1b7385b133105f