[INFO] fetching crate wsdom-core 0.0.1...
[INFO] checking wsdom-core-0.0.1 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate wsdom-core 0.0.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate wsdom-core 0.0.1 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wsdom-core 0.0.1
[INFO] finished tweaking crates.io crate wsdom-core 0.0.1
[INFO] tweaked toml for crates.io crate wsdom-core 0.0.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 21 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f2debebcb1b1f5ffc9e8af4cbb0945db2c6697d82241c04ce6eca4ef1e0a702
[INFO] running `Command { std: "docker" "start" "-a" "0f2debebcb1b1f5ffc9e8af4cbb0945db2c6697d82241c04ce6eca4ef1e0a702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f2debebcb1b1f5ffc9e8af4cbb0945db2c6697d82241c04ce6eca4ef1e0a702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f2debebcb1b1f5ffc9e8af4cbb0945db2c6697d82241c04ce6eca4ef1e0a702", kill_on_drop: false }`
[INFO] [stdout] 0f2debebcb1b1f5ffc9e8af4cbb0945db2c6697d82241c04ce6eca4ef1e0a702
[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=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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40635b3aad6f5e66bd3312e37d763554ee5ddab19ce03d116654a5bc3126cb90
[INFO] running `Command { std: "docker" "start" "-a" "40635b3aad6f5e66bd3312e37d763554ee5ddab19ce03d116654a5bc3126cb90", kill_on_drop: false }`
[INFO] [stderr]    Compiling ref-cast v1.0.23
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stderr]    Compiling ref-cast-impl v1.0.23
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking serde v1.0.209
[INFO] [stderr]     Checking serde_json v1.0.127
[INFO] [stderr]     Checking wsdom-core v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `InvalidReturn` is never constructed
[INFO] [stdout]    --> src/link.rs:173:8
[INFO] [stdout]     |
[INFO] [stdout] 173 | struct InvalidReturn;
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CommandSerializeFailed` is never constructed
[INFO] [stdout]    --> src/operations.rs:309:8
[INFO] [stdout]     |
[INFO] [stdout] 309 | struct CommandSerializeFailed;
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InvalidReturn` is never constructed
[INFO] [stdout]    --> src/link.rs:173:8
[INFO] [stdout]     |
[INFO] [stdout] 173 | struct InvalidReturn;
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CommandSerializeFailed` is never constructed
[INFO] [stdout]    --> src/operations.rs:309:8
[INFO] [stdout]     |
[INFO] [stdout] 309 | struct CommandSerializeFailed;
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.68s
[INFO] running `Command { std: "docker" "inspect" "40635b3aad6f5e66bd3312e37d763554ee5ddab19ce03d116654a5bc3126cb90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40635b3aad6f5e66bd3312e37d763554ee5ddab19ce03d116654a5bc3126cb90", kill_on_drop: false }`
[INFO] [stdout] 40635b3aad6f5e66bd3312e37d763554ee5ddab19ce03d116654a5bc3126cb90
[INFO] checking wsdom-core-0.0.1 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate wsdom-core 0.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate wsdom-core 0.0.1 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wsdom-core 0.0.1
[INFO] finished tweaking crates.io crate wsdom-core 0.0.1
[INFO] tweaked toml for crates.io crate wsdom-core 0.0.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 21 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ff4e564d805cdb4abe8a4840d337cec8c897aa8e217f7b469bb5b0b441e5e0b
[INFO] running `Command { std: "docker" "start" "-a" "2ff4e564d805cdb4abe8a4840d337cec8c897aa8e217f7b469bb5b0b441e5e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ff4e564d805cdb4abe8a4840d337cec8c897aa8e217f7b469bb5b0b441e5e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ff4e564d805cdb4abe8a4840d337cec8c897aa8e217f7b469bb5b0b441e5e0b", kill_on_drop: false }`
[INFO] [stdout] 2ff4e564d805cdb4abe8a4840d337cec8c897aa8e217f7b469bb5b0b441e5e0b
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb821da5e85ccdee85bd009358ce05ca74fb7c87c6ad914db1b5dda49edd027d
[INFO] running `Command { std: "docker" "start" "-a" "eb821da5e85ccdee85bd009358ce05ca74fb7c87c6ad914db1b5dda49edd027d", kill_on_drop: false }`
[INFO] [stderr]    Compiling ref-cast v1.0.23
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stderr]    Compiling ref-cast-impl v1.0.23
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking serde v1.0.209
[INFO] [stderr]     Checking serde_json v1.0.127
[INFO] [stderr]     Checking wsdom-core v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `InvalidReturn` is never constructed
[INFO] [stdout]    --> src/link.rs:173:8
[INFO] [stdout]     |
[INFO] [stdout] 173 | struct InvalidReturn;
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InvalidReturn` is never constructed
[INFO] [stdout]    --> src/link.rs:173:8
[INFO] [stdout]     |
[INFO] [stdout] 173 | struct InvalidReturn;
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CommandSerializeFailed` is never constructed
[INFO] [stdout]    --> src/operations.rs:309:8
[INFO] [stdout]     |
[INFO] [stdout] 309 | struct CommandSerializeFailed;
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CommandSerializeFailed` is never constructed
[INFO] [stdout]    --> src/operations.rs:309:8
[INFO] [stdout]     |
[INFO] [stdout] 309 | struct CommandSerializeFailed;
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.04s
[INFO] running `Command { std: "docker" "inspect" "eb821da5e85ccdee85bd009358ce05ca74fb7c87c6ad914db1b5dda49edd027d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb821da5e85ccdee85bd009358ce05ca74fb7c87c6ad914db1b5dda49edd027d", kill_on_drop: false }`
[INFO] [stdout] eb821da5e85ccdee85bd009358ce05ca74fb7c87c6ad914db1b5dda49edd027d