[INFO] fetching crate include_optional 1.0.1...
[INFO] checking include_optional-1.0.1 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate include_optional 1.0.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate include_optional 1.0.1 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate include_optional 1.0.1
[INFO] finished tweaking crates.io crate include_optional 1.0.1
[INFO] tweaked toml for crates.io crate include_optional 1.0.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate include_optional 1.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c6ddfd1f5775ad5968361c21235dd2a8e107dfe9c04b45f95642dd2c4f14b67
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4c6ddfd1f5775ad5968361c21235dd2a8e107dfe9c04b45f95642dd2c4f14b67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c6ddfd1f5775ad5968361c21235dd2a8e107dfe9c04b45f95642dd2c4f14b67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c6ddfd1f5775ad5968361c21235dd2a8e107dfe9c04b45f95642dd2c4f14b67", kill_on_drop: false }`
[INFO] [stdout] 4c6ddfd1f5775ad5968361c21235dd2a8e107dfe9c04b45f95642dd2c4f14b67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 504b76ccf99081b541b1df7f7e6c698b991affe0bddf6c4e277bfb088e201f89
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "504b76ccf99081b541b1df7f7e6c698b991affe0bddf6c4e277bfb088e201f89", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling trybuild v1.0.43
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking include_optional v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]     Checking serde v1.0.127
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stdout] warning: field is never read: `foo`
[INFO] [stdout]  --> examples/include_bytes_optional.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     foo: &'static str,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `do_bar`
[INFO] [stdout]  --> examples/include_bytes_optional.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     do_bar: bool,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `baz_count`
[INFO] [stdout]  --> examples/include_bytes_optional.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     baz_count: u32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.33s
[INFO] running `Command { std: "docker" "inspect" "504b76ccf99081b541b1df7f7e6c698b991affe0bddf6c4e277bfb088e201f89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "504b76ccf99081b541b1df7f7e6c698b991affe0bddf6c4e277bfb088e201f89", kill_on_drop: false }`
[INFO] [stdout] 504b76ccf99081b541b1df7f7e6c698b991affe0bddf6c4e277bfb088e201f89