[INFO] fetching crate variant_access_traits 0.4.1...
[INFO] building variant_access_traits-0.4.1 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate variant_access_traits 0.4.1 into /workspace/builds/worker-3-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-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate variant_access_traits 0.4.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 779e28e72317868697a0192a04fa30921bed5fedab775f69c789b8dc251b9143
[INFO] running `Command { std: "docker" "start" "-a" "779e28e72317868697a0192a04fa30921bed5fedab775f69c789b8dc251b9143", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "779e28e72317868697a0192a04fa30921bed5fedab775f69c789b8dc251b9143", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "779e28e72317868697a0192a04fa30921bed5fedab775f69c789b8dc251b9143", kill_on_drop: false }`
[INFO] [stdout] 779e28e72317868697a0192a04fa30921bed5fedab775f69c789b8dc251b9143
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ad848374bce6bb05958580e0264881ee8fa89e45d630d6ffac555a2c2d9da638
[INFO] running `Command { std: "docker" "start" "-a" "ad848374bce6bb05958580e0264881ee8fa89e45d630d6ffac555a2c2d9da638", 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 0.20s
[INFO] running `Command { std: "docker" "inspect" "ad848374bce6bb05958580e0264881ee8fa89e45d630d6ffac555a2c2d9da638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad848374bce6bb05958580e0264881ee8fa89e45d630d6ffac555a2c2d9da638", kill_on_drop: false }`
[INFO] [stdout] ad848374bce6bb05958580e0264881ee8fa89e45d630d6ffac555a2c2d9da638
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 729ee4cc38371c5b98484a2885a4d75b1f302f7857ede8df09cb48c4f10c773c
[INFO] running `Command { std: "docker" "start" "-a" "729ee4cc38371c5b98484a2885a4d75b1f302f7857ede8df09cb48c4f10c773c", 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] [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 0.65s
[INFO] running `Command { std: "docker" "inspect" "729ee4cc38371c5b98484a2885a4d75b1f302f7857ede8df09cb48c4f10c773c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "729ee4cc38371c5b98484a2885a4d75b1f302f7857ede8df09cb48c4f10c773c", kill_on_drop: false }`
[INFO] [stdout] 729ee4cc38371c5b98484a2885a4d75b1f302f7857ede8df09cb48c4f10c773c