[INFO] fetching crate variant_access_traits 0.4.1...
[INFO] building variant_access_traits-0.4.1 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate variant_access_traits 0.4.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate variant_access_traits 0.4.1
[INFO] finished tweaking crates.io crate variant_access_traits 0.4.1
[INFO] tweaked toml for crates.io crate variant_access_traits 0.4.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate variant_access_traits 0.4.1 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 350ec02eb05af436ff90181ac6537982fa7bc2ef969d6a7dba28869caee92b07
[INFO] running `Command { std: "docker" "start" "-a" "350ec02eb05af436ff90181ac6537982fa7bc2ef969d6a7dba28869caee92b07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "350ec02eb05af436ff90181ac6537982fa7bc2ef969d6a7dba28869caee92b07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "350ec02eb05af436ff90181ac6537982fa7bc2ef969d6a7dba28869caee92b07", kill_on_drop: false }`
[INFO] [stdout] 350ec02eb05af436ff90181ac6537982fa7bc2ef969d6a7dba28869caee92b07
[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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 651dcf60941ed1c37322d59749fb8ae229391cd332658afe238d906b996c5c48
[INFO] running `Command { std: "docker" "start" "-a" "651dcf60941ed1c37322d59749fb8ae229391cd332658afe238d906b996c5c48", kill_on_drop: false }`
[INFO] [stderr]    Compiling variant_access_traits v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `enum_name` and `requested_type` are never read
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct VariantAccessError {
[INFO] [stdout]   |            ------------------ fields in this struct
[INFO] [stdout] 7 |     enum_name: String,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 8 |     requested_type: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `VariantAccessError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "651dcf60941ed1c37322d59749fb8ae229391cd332658afe238d906b996c5c48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "651dcf60941ed1c37322d59749fb8ae229391cd332658afe238d906b996c5c48", kill_on_drop: false }`
[INFO] [stdout] 651dcf60941ed1c37322d59749fb8ae229391cd332658afe238d906b996c5c48
[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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2409c6e2b38ddfffc4889ea356a1896339a1ffabac229a0dc5ace5bfa05bc5a
[INFO] running `Command { std: "docker" "start" "-a" "f2409c6e2b38ddfffc4889ea356a1896339a1ffabac229a0dc5ace5bfa05bc5a", kill_on_drop: false }`
[INFO] [stdout] warning: fields `enum_name` and `requested_type` are never read
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct VariantAccessError {
[INFO] [stdout]   |            ------------------ fields in this struct
[INFO] [stdout] 7 |     enum_name: String,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 8 |     requested_type: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `VariantAccessError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling variant_access_traits v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `enum_name` and `requested_type` are never read
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct VariantAccessError {
[INFO] [stdout]   |            ------------------ fields in this struct
[INFO] [stdout] 7 |     enum_name: String,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 8 |     requested_type: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `VariantAccessError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "f2409c6e2b38ddfffc4889ea356a1896339a1ffabac229a0dc5ace5bfa05bc5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2409c6e2b38ddfffc4889ea356a1896339a1ffabac229a0dc5ace5bfa05bc5a", kill_on_drop: false }`
[INFO] [stdout] f2409c6e2b38ddfffc4889ea356a1896339a1ffabac229a0dc5ace5bfa05bc5a