[INFO] fetching crate is_variant 1.0.0...
[INFO] testing is_variant-1.0.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate is_variant 1.0.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate is_variant 1.0.0
[INFO] finished tweaking crates.io crate is_variant 1.0.0
[INFO] tweaked toml for crates.io crate is_variant 1.0.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate is_variant 1.0.0 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] [stderr]       Adding convert_case v0.4.0 (available: v0.8.0)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c90eab946f2d3536769aa4b0ff69c6bd089d3ab0bc7b99fa0e200827057bb9f
[INFO] running `Command { std: "docker" "start" "-a" "0c90eab946f2d3536769aa4b0ff69c6bd089d3ab0bc7b99fa0e200827057bb9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c90eab946f2d3536769aa4b0ff69c6bd089d3ab0bc7b99fa0e200827057bb9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c90eab946f2d3536769aa4b0ff69c6bd089d3ab0bc7b99fa0e200827057bb9f", kill_on_drop: false }`
[INFO] [stdout] 0c90eab946f2d3536769aa4b0ff69c6bd089d3ab0bc7b99fa0e200827057bb9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62adf7b325ea3a1c56dc2134678543f04121480977feab6f9a7ab64e07e9b35e
[INFO] running `Command { std: "docker" "start" "-a" "62adf7b325ea3a1c56dc2134678543f04121480977feab6f9a7ab64e07e9b35e", kill_on_drop: false }`
[INFO] [stderr]    Compiling is_variant v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/lib.rs:52:20
[INFO] [stdout]    |
[INFO] [stdout] 52 |             .into();
[INFO] [stdout]    |                    ^
[INFO] [stdout] ...
[INFO] [stdout] 92 |         _ => return derive_error!("IsVariant is only implemented for enums"),
[INFO] [stdout]    |                     -------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: `#[deny(semicolon_in_expressions_from_macros)]` (part of `#[deny(future_incompatible)]`) on by default
[INFO] [stdout]    = note: this error originates in the macro `derive_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `is_variant` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "62adf7b325ea3a1c56dc2134678543f04121480977feab6f9a7ab64e07e9b35e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62adf7b325ea3a1c56dc2134678543f04121480977feab6f9a7ab64e07e9b35e", kill_on_drop: false }`
[INFO] [stdout] 62adf7b325ea3a1c56dc2134678543f04121480977feab6f9a7ab64e07e9b35e