[INFO] fetching crate scroll 0.13.0...
[INFO] building scroll-0.13.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate scroll 0.13.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate scroll 0.13.0
[INFO] finished tweaking crates.io crate scroll 0.13.0
[INFO] tweaked toml for crates.io crate scroll 0.13.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate scroll 0.13.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate scroll 0.13.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--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]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.60
[INFO] [stderr]   Downloaded scroll_derive v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3fad398b2b8747d7628b4ccb5bbfa3244e48b49c6a5376050a4fca3a48438ea2
[INFO] running `Command { std: "docker" "start" "-a" "3fad398b2b8747d7628b4ccb5bbfa3244e48b49c6a5376050a4fca3a48438ea2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fad398b2b8747d7628b4ccb5bbfa3244e48b49c6a5376050a4fca3a48438ea2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fad398b2b8747d7628b4ccb5bbfa3244e48b49c6a5376050a4fca3a48438ea2", kill_on_drop: false }`
[INFO] [stdout] 3fad398b2b8747d7628b4ccb5bbfa3244e48b49c6a5376050a4fca3a48438ea2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b01b11dca31e1d4dd47c9f4b5fa24f87a9bf7a0da4550c22b76d4eab9c110ef0
[INFO] running `Command { std: "docker" "start" "-a" "b01b11dca31e1d4dd47c9f4b5fa24f87a9bf7a0da4550c22b76d4eab9c110ef0", kill_on_drop: false }`
[INFO] [stderr]    Compiling scroll v0.13.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "b01b11dca31e1d4dd47c9f4b5fa24f87a9bf7a0da4550c22b76d4eab9c110ef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b01b11dca31e1d4dd47c9f4b5fa24f87a9bf7a0da4550c22b76d4eab9c110ef0", kill_on_drop: false }`
[INFO] [stdout] b01b11dca31e1d4dd47c9f4b5fa24f87a9bf7a0da4550c22b76d4eab9c110ef0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ff32090ba6c7af6cdbe0c356d3d96f1b84f85a473a97b922d346ef98f943a1d
[INFO] running `Command { std: "docker" "start" "-a" "1ff32090ba6c7af6cdbe0c356d3d96f1b84f85a473a97b922d346ef98f943a1d", kill_on_drop: false }`
[INFO] [stderr]    Compiling scroll v0.13.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ExternalError` is never constructed
[INFO] [stdout]    --> src/lib.rs:433:16
[INFO] [stdout]     |
[INFO] [stdout] 433 |     pub struct ExternalError {}
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Foo` is never constructed
[INFO] [stdout]    --> src/lib.rs:461:16
[INFO] [stdout]     |
[INFO] [stdout] 461 |     pub struct Foo(u16);
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "1ff32090ba6c7af6cdbe0c356d3d96f1b84f85a473a97b922d346ef98f943a1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ff32090ba6c7af6cdbe0c356d3d96f1b84f85a473a97b922d346ef98f943a1d", kill_on_drop: false }`
[INFO] [stdout] 1ff32090ba6c7af6cdbe0c356d3d96f1b84f85a473a97b922d346ef98f943a1d