[INFO] fetching crate wsdom-core 0.0.1...
[INFO] checking wsdom-core-0.0.1 against master#191df20fcad9331d3a948aa8e8556775ec3fe69d for pr-133502-3
[INFO] extracting crate wsdom-core 0.0.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate wsdom-core 0.0.1 on toolchain 191df20fcad9331d3a948aa8e8556775ec3fe69d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+191df20fcad9331d3a948aa8e8556775ec3fe69d" "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-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+191df20fcad9331d3a948aa8e8556775ec3fe69d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+191df20fcad9331d3a948aa8e8556775ec3fe69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ref-cast v1.0.24
[INFO] [stderr]   Downloaded ref-cast-impl v1.0.24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+191df20fcad9331d3a948aa8e8556775ec3fe69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c8d934d9064e0963c32a82dc3d18c7d765dcf842415d6f773e7e69dde0fb0db
[INFO] running `Command { std: "docker" "start" "-a" "6c8d934d9064e0963c32a82dc3d18c7d765dcf842415d6f773e7e69dde0fb0db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c8d934d9064e0963c32a82dc3d18c7d765dcf842415d6f773e7e69dde0fb0db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c8d934d9064e0963c32a82dc3d18c7d765dcf842415d6f773e7e69dde0fb0db", kill_on_drop: false }`
[INFO] [stdout] 6c8d934d9064e0963c32a82dc3d18c7d765dcf842415d6f773e7e69dde0fb0db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+191df20fcad9331d3a948aa8e8556775ec3fe69d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38ed379c44d9b12ff1b5c09147534a93728e988c39deaae4170ae7d09e1f2893
[INFO] running `Command { std: "docker" "start" "-a" "38ed379c44d9b12ff1b5c09147534a93728e988c39deaae4170ae7d09e1f2893", kill_on_drop: false }`
[INFO] [stderr]    Compiling ref-cast-impl v1.0.24
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking ref-cast v1.0.24
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking serde_json v1.0.140
[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: 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.85s
[INFO] running `Command { std: "docker" "inspect" "38ed379c44d9b12ff1b5c09147534a93728e988c39deaae4170ae7d09e1f2893", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38ed379c44d9b12ff1b5c09147534a93728e988c39deaae4170ae7d09e1f2893", kill_on_drop: false }`
[INFO] [stdout] 38ed379c44d9b12ff1b5c09147534a93728e988c39deaae4170ae7d09e1f2893