[INFO] fetching crate mks-servo42 0.2.0...
[INFO] testing mks-servo42-0.2.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate mks-servo42 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate mks-servo42 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mks-servo42 0.2.0
[INFO] tweaked toml for crates.io crate mks-servo42 0.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mks-servo42 0.2.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mks-servo42 0.2.0 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serial v0.4.0
[INFO] [stderr]   Downloaded serial-core v0.4.0
[INFO] [stderr]   Downloaded termios v0.2.2
[INFO] [stderr]   Downloaded ioctl-rs v0.1.6
[INFO] [stderr]   Downloaded serial-unix v0.4.0
[INFO] [stderr]   Downloaded serial-windows v0.4.0
[INFO] [stderr]   Downloaded libc v0.2.166
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] baf52afcdea490bb49440213f388bfd99bb1be333067e6d19f77beb9d867f69f
[INFO] running `Command { std: "docker" "start" "-a" "baf52afcdea490bb49440213f388bfd99bb1be333067e6d19f77beb9d867f69f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "baf52afcdea490bb49440213f388bfd99bb1be333067e6d19f77beb9d867f69f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "baf52afcdea490bb49440213f388bfd99bb1be333067e6d19f77beb9d867f69f", kill_on_drop: false }`
[INFO] [stdout] baf52afcdea490bb49440213f388bfd99bb1be333067e6d19f77beb9d867f69f
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39f265753f79fbfc09570c14739610f3a5c5f08ccb624d5dfc00f1686ee06690
[INFO] running `Command { std: "docker" "start" "-a" "39f265753f79fbfc09570c14739610f3a5c5f08ccb624d5dfc00f1686ee06690", kill_on_drop: false }`
[INFO] [stderr]    Compiling mks-servo42 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `InvalidValue` is never constructed
[INFO] [stdout]  --> src/response.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct InvalidValue;
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Response` is never used
[INFO] [stdout]  --> src/response.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Response {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Orientation` is never used
[INFO] [stdout]   --> src/direction.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout] 10 | enum Orientation {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "39f265753f79fbfc09570c14739610f3a5c5f08ccb624d5dfc00f1686ee06690", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39f265753f79fbfc09570c14739610f3a5c5f08ccb624d5dfc00f1686ee06690", kill_on_drop: false }`
[INFO] [stdout] 39f265753f79fbfc09570c14739610f3a5c5f08ccb624d5dfc00f1686ee06690
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbbade8d5e1b9d62391b9aec8f3b00b89742f1f89d4e5984378be716b4ff058f
[INFO] running `Command { std: "docker" "start" "-a" "fbbade8d5e1b9d62391b9aec8f3b00b89742f1f89d4e5984378be716b4ff058f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.166
[INFO] [stdout] warning: struct `InvalidValue` is never constructed
[INFO] [stdout]  --> src/response.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct InvalidValue;
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Response` is never used
[INFO] [stdout]  --> src/response.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Response {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Orientation` is never used
[INFO] [stdout]   --> src/direction.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout] 10 | enum Orientation {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serial-core v0.4.0
[INFO] [stderr]    Compiling ioctl-rs v0.1.6
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling serial-unix v0.4.0
[INFO] [stderr]    Compiling serial v0.4.0
[INFO] [stderr]    Compiling mks-servo42 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `InvalidValue` is never constructed
[INFO] [stdout]  --> src/response.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct InvalidValue;
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Response` is never used
[INFO] [stdout]  --> src/response.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Response {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Orientation` is never used
[INFO] [stdout]   --> src/direction.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout] 10 | enum Orientation {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/desktop.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         s.write_all(b);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let _ = s.write_all(b);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.08s
[INFO] running `Command { std: "docker" "inspect" "fbbade8d5e1b9d62391b9aec8f3b00b89742f1f89d4e5984378be716b4ff058f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbbade8d5e1b9d62391b9aec8f3b00b89742f1f89d4e5984378be716b4ff058f", kill_on_drop: false }`
[INFO] [stdout] fbbade8d5e1b9d62391b9aec8f3b00b89742f1f89d4e5984378be716b4ff058f
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 11db411670dfa1175f81b710408b8ecedc355280dbf64d29fabfbb5d02bcdd41
[INFO] running `Command { std: "docker" "start" "-a" "11db411670dfa1175f81b710408b8ecedc355280dbf64d29fabfbb5d02bcdd41", kill_on_drop: false }`
[INFO] [stderr] warning: struct `InvalidValue` is never constructed
[INFO] [stderr]  --> src/response.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct InvalidValue;
[INFO] [stderr]   |            ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Response` is never used
[INFO] [stderr]  --> src/response.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub enum Response {
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Orientation` is never used
[INFO] [stderr]   --> src/direction.rs:10:6
[INFO] [stderr]    |
[INFO] [stderr] 10 | enum Orientation {
[INFO] [stderr]    |      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `mks-servo42` (lib) generated 3 warnings
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> examples/desktop.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |         s.write_all(b);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 63 |         let _ = s.write_all(b);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `mks-servo42` (example "desktop") generated 1 warning
[INFO] [stderr] warning: `mks-servo42` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mks_servo42-e1796986efc50cfb)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::checksums ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mks_servo42
[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" "11db411670dfa1175f81b710408b8ecedc355280dbf64d29fabfbb5d02bcdd41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11db411670dfa1175f81b710408b8ecedc355280dbf64d29fabfbb5d02bcdd41", kill_on_drop: false }`
[INFO] [stdout] 11db411670dfa1175f81b710408b8ecedc355280dbf64d29fabfbb5d02bcdd41