[INFO] fetching crate synthez-core 0.3.1...
[INFO] testing synthez-core-0.3.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate synthez-core 0.3.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate synthez-core 0.3.1
[INFO] finished tweaking crates.io crate synthez-core 0.3.1
[INFO] tweaked toml for crates.io crate synthez-core 0.3.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate synthez-core 0.3.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] [stderr]       Adding sealed v0.5.0 (available: v0.6.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sealed v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70b9d9b52f6ba58b84b735335c21ae69260e601773cdc4a67f5d2ba8759ed37c
[INFO] running `Command { std: "docker" "start" "-a" "70b9d9b52f6ba58b84b735335c21ae69260e601773cdc4a67f5d2ba8759ed37c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70b9d9b52f6ba58b84b735335c21ae69260e601773cdc4a67f5d2ba8759ed37c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70b9d9b52f6ba58b84b735335c21ae69260e601773cdc4a67f5d2ba8759ed37c", kill_on_drop: false }`
[INFO] [stdout] 70b9d9b52f6ba58b84b735335c21ae69260e601773cdc4a67f5d2ba8759ed37c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36a9b7e16a582aa283bf8f715dba0af52e18a23d80462640cde06a53fe93eb00
[INFO] running `Command { std: "docker" "start" "-a" "36a9b7e16a582aa283bf8f715dba0af52e18a23d80462640cde06a53fe93eb00", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling sealed v0.5.0
[INFO] [stderr]    Compiling synthez-core v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `unused_tuple_struct_fields` has been renamed to `dead_code`
[INFO] [stdout]    --> src/lib.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     unused_tuple_struct_fields,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `dead_code`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.41s
[INFO] running `Command { std: "docker" "inspect" "36a9b7e16a582aa283bf8f715dba0af52e18a23d80462640cde06a53fe93eb00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36a9b7e16a582aa283bf8f715dba0af52e18a23d80462640cde06a53fe93eb00", kill_on_drop: false }`
[INFO] [stdout] 36a9b7e16a582aa283bf8f715dba0af52e18a23d80462640cde06a53fe93eb00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0cca2fd97cb78f1d9464e23c097f36ccecc582033a58c2f35755c838cd93d2f
[INFO] running `Command { std: "docker" "start" "-a" "d0cca2fd97cb78f1d9464e23c097f36ccecc582033a58c2f35755c838cd93d2f", kill_on_drop: false }`
[INFO] [stdout] warning: lint `unused_tuple_struct_fields` has been renamed to `dead_code`
[INFO] [stdout]    --> src/lib.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     unused_tuple_struct_fields,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `dead_code`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling synthez-core v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `synthez`
[INFO] [stdout]    --> src/lib.rs:133:5
[INFO] [stdout]     |
[INFO] [stdout] 133 | use synthez as _; // for docs only
[INFO] [stdout]     |     ^^^^^^^^^^^^ no external crate `synthez`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `unused_tuple_struct_fields` has been renamed to `dead_code`
[INFO] [stdout]    --> src/lib.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     unused_tuple_struct_fields,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `dead_code`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `synthez-core` (lib test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "d0cca2fd97cb78f1d9464e23c097f36ccecc582033a58c2f35755c838cd93d2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0cca2fd97cb78f1d9464e23c097f36ccecc582033a58c2f35755c838cd93d2f", kill_on_drop: false }`
[INFO] [stdout] d0cca2fd97cb78f1d9464e23c097f36ccecc582033a58c2f35755c838cd93d2f