[INFO] fetching crate scroll 0.13.0...
[INFO] building scroll-0.13.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate scroll 0.13.0 into /workspace/builds/worker-6-tc2/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-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate scroll 0.13.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 789d69cf6da929a5af576d0c2e27b3a1ad863cf740c7fd66c354843381138705
[INFO] running `Command { std: "docker" "start" "-a" "789d69cf6da929a5af576d0c2e27b3a1ad863cf740c7fd66c354843381138705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "789d69cf6da929a5af576d0c2e27b3a1ad863cf740c7fd66c354843381138705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "789d69cf6da929a5af576d0c2e27b3a1ad863cf740c7fd66c354843381138705", kill_on_drop: false }`
[INFO] [stdout] 789d69cf6da929a5af576d0c2e27b3a1ad863cf740c7fd66c354843381138705
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16471c50822d263cba832a9398e5e10601dcb7493a7cf2d7247d2baec4ff7985
[INFO] running `Command { std: "docker" "start" "-a" "16471c50822d263cba832a9398e5e10601dcb7493a7cf2d7247d2baec4ff7985", kill_on_drop: false }`
[INFO] [stderr]    Compiling scroll v0.13.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "16471c50822d263cba832a9398e5e10601dcb7493a7cf2d7247d2baec4ff7985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16471c50822d263cba832a9398e5e10601dcb7493a7cf2d7247d2baec4ff7985", kill_on_drop: false }`
[INFO] [stdout] 16471c50822d263cba832a9398e5e10601dcb7493a7cf2d7247d2baec4ff7985
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69398ed49297b75e786231c9d739a9db42ba0784de5a329b11fb98b4d2df26f7
[INFO] running `Command { std: "docker" "start" "-a" "69398ed49297b75e786231c9d739a9db42ba0784de5a329b11fb98b4d2df26f7", 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 0.86s
[INFO] running `Command { std: "docker" "inspect" "69398ed49297b75e786231c9d739a9db42ba0784de5a329b11fb98b4d2df26f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69398ed49297b75e786231c9d739a9db42ba0784de5a329b11fb98b4d2df26f7", kill_on_drop: false }`
[INFO] [stdout] 69398ed49297b75e786231c9d739a9db42ba0784de5a329b11fb98b4d2df26f7