[INFO] fetching crate sample2 0.1.0...
[INFO] testing sample2-0.1.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate sample2 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate sample2 0.1.0
[INFO] finished tweaking crates.io crate sample2 0.1.0
[INFO] tweaked toml for crates.io crate sample2 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sample2 0.1.0 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sample2 0.1.0 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3ff61aac6ccf9e4171b7ae87b650c44b4fab4aa4be6b4f62b9639b85d8ac210
[INFO] running `Command { std: "docker" "start" "-a" "c3ff61aac6ccf9e4171b7ae87b650c44b4fab4aa4be6b4f62b9639b85d8ac210", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3ff61aac6ccf9e4171b7ae87b650c44b4fab4aa4be6b4f62b9639b85d8ac210", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3ff61aac6ccf9e4171b7ae87b650c44b4fab4aa4be6b4f62b9639b85d8ac210", kill_on_drop: false }`
[INFO] [stdout] c3ff61aac6ccf9e4171b7ae87b650c44b4fab4aa4be6b4f62b9639b85d8ac210
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 548ec4e54feb5fc9542dbb50c2caaa248298b8a9109555b59ab245db4b403b42
[INFO] running `Command { std: "docker" "start" "-a" "548ec4e54feb5fc9542dbb50c2caaa248298b8a9109555b59ab245db4b403b42", kill_on_drop: false }`
[INFO] [stderr]    Compiling sample2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:29:55
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> (SecondaryColor) {
[INFO] [stdout]    |                                                       ^              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 29 -     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> (SecondaryColor) {
[INFO] [stdout] 29 +     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c1`
[INFO] [stdout]   --> src/lib.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> (SecondaryColor) {
[INFO] [stdout]    |                ^^ help: if this is intentional, prefix it with an underscore: `_c1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c2`
[INFO] [stdout]   --> src/lib.rs:29:34
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> (SecondaryColor) {
[INFO] [stdout]    |                                  ^^ help: if this is intentional, prefix it with an underscore: `_c2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "548ec4e54feb5fc9542dbb50c2caaa248298b8a9109555b59ab245db4b403b42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "548ec4e54feb5fc9542dbb50c2caaa248298b8a9109555b59ab245db4b403b42", kill_on_drop: false }`
[INFO] [stdout] 548ec4e54feb5fc9542dbb50c2caaa248298b8a9109555b59ab245db4b403b42
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7ff25fcc67413ca73c2cd41b1445f78ef13b05baca78d45cef3c16176a2538f
[INFO] running `Command { std: "docker" "start" "-a" "a7ff25fcc67413ca73c2cd41b1445f78ef13b05baca78d45cef3c16176a2538f", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:29:55
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> (SecondaryColor) {
[INFO] [stdout]    |                                                       ^              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 29 -     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> (SecondaryColor) {
[INFO] [stdout] 29 +     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c1`
[INFO] [stdout]   --> src/lib.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> (SecondaryColor) {
[INFO] [stdout]    |                ^^ help: if this is intentional, prefix it with an underscore: `_c1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c2`
[INFO] [stdout]   --> src/lib.rs:29:34
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> (SecondaryColor) {
[INFO] [stdout]    |                                  ^^ help: if this is intentional, prefix it with an underscore: `_c2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sample2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:29:55
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> (SecondaryColor) {
[INFO] [stdout]    |                                                       ^              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 29 -     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> (SecondaryColor) {
[INFO] [stdout] 29 +     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c1`
[INFO] [stdout]   --> src/lib.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> (SecondaryColor) {
[INFO] [stdout]    |                ^^ help: if this is intentional, prefix it with an underscore: `_c1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c2`
[INFO] [stdout]   --> src/lib.rs:29:34
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> (SecondaryColor) {
[INFO] [stdout]    |                                  ^^ help: if this is intentional, prefix it with an underscore: `_c2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "a7ff25fcc67413ca73c2cd41b1445f78ef13b05baca78d45cef3c16176a2538f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7ff25fcc67413ca73c2cd41b1445f78ef13b05baca78d45cef3c16176a2538f", kill_on_drop: false }`
[INFO] [stdout] a7ff25fcc67413ca73c2cd41b1445f78ef13b05baca78d45cef3c16176a2538f
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 10830583a6b0ec96f28f6cc5dad8fee2eb60ca5e3ca8309931cd7b5020655201
[INFO] running `Command { std: "docker" "start" "-a" "10830583a6b0ec96f28f6cc5dad8fee2eb60ca5e3ca8309931cd7b5020655201", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/lib.rs:29:55
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> (SecondaryColor) {
[INFO] [stderr]    |                                                       ^              ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 29 -     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> (SecondaryColor) {
[INFO] [stderr] 29 +     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c1`
[INFO] [stderr]   --> src/lib.rs:29:16
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> (SecondaryColor) {
[INFO] [stderr]    |                ^^ help: if this is intentional, prefix it with an underscore: `_c1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c2`
[INFO] [stderr]   --> src/lib.rs:29:34
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> (SecondaryColor) {
[INFO] [stderr]    |                                  ^^ help: if this is intentional, prefix it with an underscore: `_c2`
[INFO] [stderr] 
[INFO] [stderr] warning: `sample2` (lib) generated 3 warnings (run `cargo fix --lib -p sample2` to apply 1 suggestion)
[INFO] [stderr] warning: `sample2` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sample2-b91644227f802c7f)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/sample2-204d0fb83b05c733)
[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] [stderr]    Doc-tests sample2
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/lib.rs:29:55
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> (SecondaryColor) {
[INFO] [stderr]    |                                                       ^              ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 29 -     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> (SecondaryColor) {
[INFO] [stderr] 29 +     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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" "10830583a6b0ec96f28f6cc5dad8fee2eb60ca5e3ca8309931cd7b5020655201", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10830583a6b0ec96f28f6cc5dad8fee2eb60ca5e3ca8309931cd7b5020655201", kill_on_drop: false }`
[INFO] [stdout] 10830583a6b0ec96f28f6cc5dad8fee2eb60ca5e3ca8309931cd7b5020655201