[INFO] fetching crate sample2 0.1.0...
[INFO] testing sample2-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate sample2 0.1.0 into /workspace/builds/worker-3-tc2/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-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sample2 0.1.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51aca8c48607f004bb31107773b6ae2bf174260b6d7f16ff47dd9993120a5ab5
[INFO] running `Command { std: "docker" "start" "-a" "51aca8c48607f004bb31107773b6ae2bf174260b6d7f16ff47dd9993120a5ab5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51aca8c48607f004bb31107773b6ae2bf174260b6d7f16ff47dd9993120a5ab5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51aca8c48607f004bb31107773b6ae2bf174260b6d7f16ff47dd9993120a5ab5", kill_on_drop: false }`
[INFO] [stdout] 51aca8c48607f004bb31107773b6ae2bf174260b6d7f16ff47dd9993120a5ab5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a16097d01dc333953e6fa575a34c26b35adbba38a7421c72b10d118c994fec76
[INFO] running `Command { std: "docker" "start" "-a" "a16097d01dc333953e6fa575a34c26b35adbba38a7421c72b10d118c994fec76", 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 0.41s
[INFO] running `Command { std: "docker" "inspect" "a16097d01dc333953e6fa575a34c26b35adbba38a7421c72b10d118c994fec76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a16097d01dc333953e6fa575a34c26b35adbba38a7421c72b10d118c994fec76", kill_on_drop: false }`
[INFO] [stdout] a16097d01dc333953e6fa575a34c26b35adbba38a7421c72b10d118c994fec76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2a30536d19d751656816d5fe9b810235591396cf75ef3a3d500ca35d8d63c48
[INFO] running `Command { std: "docker" "start" "-a" "f2a30536d19d751656816d5fe9b810235591396cf75ef3a3d500ca35d8d63c48", 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] [stderr]    Compiling sample2 v0.1.0 (/opt/rustwide/workdir)
[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] [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 0.24s
[INFO] running `Command { std: "docker" "inspect" "f2a30536d19d751656816d5fe9b810235591396cf75ef3a3d500ca35d8d63c48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2a30536d19d751656816d5fe9b810235591396cf75ef3a3d500ca35d8d63c48", kill_on_drop: false }`
[INFO] [stdout] f2a30536d19d751656816d5fe9b810235591396cf75ef3a3d500ca35d8d63c48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9d3f35593150b0b44dd47623c8ce04d51b6d8e5d8f809d960bef453877064e69
[INFO] running `Command { std: "docker" "start" "-a" "9d3f35593150b0b44dd47623c8ce04d51b6d8e5d8f809d960bef453877064e69", 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 3 suggestions)
[INFO] [stderr] warning: `sample2` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[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-cae9ac53abe90b86)
[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" "9d3f35593150b0b44dd47623c8ce04d51b6d8e5d8f809d960bef453877064e69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d3f35593150b0b44dd47623c8ce04d51b6d8e5d8f809d960bef453877064e69", kill_on_drop: false }`
[INFO] [stdout] 9d3f35593150b0b44dd47623c8ce04d51b6d8e5d8f809d960bef453877064e69