[INFO] crate debug_stub_derive 0.3.0 is already in cache
[INFO] checking debug_stub_derive-0.3.0 against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] extracting crate debug_stub_derive 0.3.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate debug_stub_derive 0.3.0 on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate debug_stub_derive 0.3.0
[INFO] finished tweaking crates.io crate debug_stub_derive 0.3.0
[INFO] tweaked toml for crates.io crate debug_stub_derive 0.3.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ffa520222e763a2d80c29363901968564bce69b168016c88110905e75a8c3fab
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "ffa520222e763a2d80c29363901968564bce69b168016c88110905e75a8c3fab"`
[INFO] [stderr]     Checking syn v0.11.11
[INFO] [stderr]    Compiling debug_stub_derive v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> tests/lib.rs:413:9
[INFO] [stderr]     |
[INFO] [stderr] 413 |     let f = {
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `string`
[INFO] [stderr]   --> tests/lib.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |         string: String
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `b`
[INFO] [stderr]   --> tests/lib.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |         b: StructWithoutDebug
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `string`
[INFO] [stderr]    --> tests/lib.rs:558:9
[INFO] [stderr]     |
[INFO] [stderr] 558 |         string: String
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `b`
[INFO] [stderr]    --> tests/lib.rs:572:13
[INFO] [stderr]     |
[INFO] [stderr] 572 |             b: StructWithoutDebug,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.99s
[INFO] running `"docker" "inspect" "ffa520222e763a2d80c29363901968564bce69b168016c88110905e75a8c3fab"`
[INFO] running `"docker" "rm" "-f" "ffa520222e763a2d80c29363901968564bce69b168016c88110905e75a8c3fab"`
[INFO] [stdout] ffa520222e763a2d80c29363901968564bce69b168016c88110905e75a8c3fab