[INFO] fetching crate mks-servo42 0.2.0...
[INFO] testing mks-servo42-0.2.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate mks-servo42 0.2.0 into /workspace/builds/worker-2-tc2/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-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mks-servo42 0.2.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 304e4cae5c04886aa3e77435b4376fd33926d9aa9435fcf2c2b733d1598747db
[INFO] running `Command { std: "docker" "start" "-a" "304e4cae5c04886aa3e77435b4376fd33926d9aa9435fcf2c2b733d1598747db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "304e4cae5c04886aa3e77435b4376fd33926d9aa9435fcf2c2b733d1598747db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "304e4cae5c04886aa3e77435b4376fd33926d9aa9435fcf2c2b733d1598747db", kill_on_drop: false }`
[INFO] [stdout] 304e4cae5c04886aa3e77435b4376fd33926d9aa9435fcf2c2b733d1598747db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d58afb0d144585922e139e4bfc939edd98433b84c2c7d7c0499c54d6e1af83d
[INFO] running `Command { std: "docker" "start" "-a" "6d58afb0d144585922e139e4bfc939edd98433b84c2c7d7c0499c54d6e1af83d", 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 0.18s
[INFO] running `Command { std: "docker" "inspect" "6d58afb0d144585922e139e4bfc939edd98433b84c2c7d7c0499c54d6e1af83d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d58afb0d144585922e139e4bfc939edd98433b84c2c7d7c0499c54d6e1af83d", kill_on_drop: false }`
[INFO] [stdout] 6d58afb0d144585922e139e4bfc939edd98433b84c2c7d7c0499c54d6e1af83d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25c3d182db012d527fed6418726d001fdfc02476fc70aea8e39d859c363c7436
[INFO] running `Command { std: "docker" "start" "-a" "25c3d182db012d527fed6418726d001fdfc02476fc70aea8e39d859c363c7436", 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 termios v0.2.2
[INFO] [stderr]    Compiling serial-core v0.4.0
[INFO] [stderr]    Compiling ioctl-rs v0.1.6
[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 2.84s
[INFO] running `Command { std: "docker" "inspect" "25c3d182db012d527fed6418726d001fdfc02476fc70aea8e39d859c363c7436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25c3d182db012d527fed6418726d001fdfc02476fc70aea8e39d859c363c7436", kill_on_drop: false }`
[INFO] [stdout] 25c3d182db012d527fed6418726d001fdfc02476fc70aea8e39d859c363c7436
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] acd609d7ed0709ee340e6f7d87286ddbf4abc18394e8d872c54b7f2bd012174d
[INFO] running `Command { std: "docker" "start" "-a" "acd609d7ed0709ee340e6f7d87286ddbf4abc18394e8d872c54b7f2bd012174d", 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-b1b7d847131a13d2)
[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" "acd609d7ed0709ee340e6f7d87286ddbf4abc18394e8d872c54b7f2bd012174d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acd609d7ed0709ee340e6f7d87286ddbf4abc18394e8d872c54b7f2bd012174d", kill_on_drop: false }`
[INFO] [stdout] acd609d7ed0709ee340e6f7d87286ddbf4abc18394e8d872c54b7f2bd012174d