[INFO] fetching crate pear 0.2.3...
[INFO] checking pear-0.2.3 against master#f1ce0e6a00593493a12e0e3662119786c761f375 for pr-92413
[INFO] extracting crate pear 0.2.3 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate pear 0.2.3 on toolchain f1ce0e6a00593493a12e0e3662119786c761f375
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f1ce0e6a00593493a12e0e3662119786c761f375" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pear 0.2.3
[INFO] finished tweaking crates.io crate pear 0.2.3
[INFO] tweaked toml for crates.io crate pear 0.2.3 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f1ce0e6a00593493a12e0e3662119786c761f375" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f1ce0e6a00593493a12e0e3662119786c761f375" "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-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+f1ce0e6a00593493a12e0e3662119786c761f375" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26bdc318db52a4f18cab39d7e3313d420142d8fbb47517a0d6e3761bc2fdae83
[INFO] running `Command { std: "docker" "start" "-a" "26bdc318db52a4f18cab39d7e3313d420142d8fbb47517a0d6e3761bc2fdae83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26bdc318db52a4f18cab39d7e3313d420142d8fbb47517a0d6e3761bc2fdae83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26bdc318db52a4f18cab39d7e3313d420142d8fbb47517a0d6e3761bc2fdae83", kill_on_drop: false }`
[INFO] [stdout] 26bdc318db52a4f18cab39d7e3313d420142d8fbb47517a0d6e3761bc2fdae83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+f1ce0e6a00593493a12e0e3662119786c761f375" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2f9409dd31bd94b01c8e60a5531c5f00afa26992cd3f4d33e3edbc198599bd3
[INFO] running `Command { std: "docker" "start" "-a" "f2f9409dd31bd94b01c8e60a5531c5f00afa26992cd3f4d33e3edbc198599bd3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]     Checking inlinable_string v0.1.15
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.9.1
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling pear_codegen v0.2.3
[INFO] [stderr]     Checking pear v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `message`
[INFO] [stdout]   --> tests/custom_expected.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         message: Cow<'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: `second`
[INFO] [stdout]   --> tests/custom_expected.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         second: Option<Cow<'static, str>>
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.92s
[INFO] running `Command { std: "docker" "inspect" "f2f9409dd31bd94b01c8e60a5531c5f00afa26992cd3f4d33e3edbc198599bd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2f9409dd31bd94b01c8e60a5531c5f00afa26992cd3f4d33e3edbc198599bd3", kill_on_drop: false }`
[INFO] [stdout] f2f9409dd31bd94b01c8e60a5531c5f00afa26992cd3f4d33e3edbc198599bd3