[INFO] fetching crate tagged-pointer-as-enum 1.0.0...
[INFO] checking tagged-pointer-as-enum-1.0.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate tagged-pointer-as-enum 1.0.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate tagged-pointer-as-enum 1.0.0
[INFO] finished tweaking crates.io crate tagged-pointer-as-enum 1.0.0
[INFO] tweaked toml for crates.io crate tagged-pointer-as-enum 1.0.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tagged-pointer-as-enum 1.0.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 71 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.6.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ec87b7d0737d8548da650247ec133ecf1ca19c161486ed4ef17afbc50dc4d3c
[INFO] running `Command { std: "docker" "start" "-a" "2ec87b7d0737d8548da650247ec133ecf1ca19c161486ed4ef17afbc50dc4d3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ec87b7d0737d8548da650247ec133ecf1ca19c161486ed4ef17afbc50dc4d3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ec87b7d0737d8548da650247ec133ecf1ca19c161486ed4ef17afbc50dc4d3c", kill_on_drop: false }`
[INFO] [stdout] 2ec87b7d0737d8548da650247ec133ecf1ca19c161486ed4ef17afbc50dc4d3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9d89c92853ebc4a57d1867861ad0489fd309fdacb0d7e67dc956f0023208d28
[INFO] running `Command { std: "docker" "start" "-a" "f9d89c92853ebc4a57d1867861ad0489fd309fdacb0d7e67dc956f0023208d28", kill_on_drop: false }`
[INFO] [stderr]     Checking tagged-pointer-as-enum v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `None` is never constructed
[INFO] [stdout]  --> benches/compare_with_enum.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct None;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Native` is never used
[INFO] [stdout]   --> benches/compare_with_enum.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | enum Native {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ForEachVariant` is never used
[INFO] [stdout]   --> benches/compare_with_enum.rs:52:7
[INFO] [stdout]    |
[INFO] [stdout] 52 | trait ForEachVariant {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `work` is never used
[INFO] [stdout]   --> benches/compare_with_enum.rs:89:4
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn work<T>()
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "f9d89c92853ebc4a57d1867861ad0489fd309fdacb0d7e67dc956f0023208d28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9d89c92853ebc4a57d1867861ad0489fd309fdacb0d7e67dc956f0023208d28", kill_on_drop: false }`
[INFO] [stdout] f9d89c92853ebc4a57d1867861ad0489fd309fdacb0d7e67dc956f0023208d28