[INFO] fetching crate enum2pos 0.1.2...
[INFO] checking enum2pos-0.1.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate enum2pos 0.1.2 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate enum2pos 0.1.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate enum2pos 0.1.2
[INFO] tweaked toml for crates.io crate enum2pos 0.1.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate enum2pos 0.1.2 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.110)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6bcbf82691704522708b2f185fdd2860fe86ece796f61024fa1bce03e66ba611
[INFO] running `Command { std: "docker" "start" "-a" "6bcbf82691704522708b2f185fdd2860fe86ece796f61024fa1bce03e66ba611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bcbf82691704522708b2f185fdd2860fe86ece796f61024fa1bce03e66ba611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bcbf82691704522708b2f185fdd2860fe86ece796f61024fa1bce03e66ba611", kill_on_drop: false }`
[INFO] [stdout] 6bcbf82691704522708b2f185fdd2860fe86ece796f61024fa1bce03e66ba611
[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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d7e883bee387002b36a8b0def6ae3b4a41499fef4abe207de3cc8fb8317f4cc
[INFO] running `Command { std: "docker" "start" "-a" "4d7e883bee387002b36a8b0def6ae3b4a41499fef4abe207de3cc8fb8317f4cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking proc-macro2 v1.0.103
[INFO] [stderr]     Checking quote v1.0.42
[INFO] [stderr]     Checking enum2pos v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> tests/convert.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Unnamed(i32, String),
[INFO] [stdout]   |                  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `enum2pos` (test "convert") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "4d7e883bee387002b36a8b0def6ae3b4a41499fef4abe207de3cc8fb8317f4cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d7e883bee387002b36a8b0def6ae3b4a41499fef4abe207de3cc8fb8317f4cc", kill_on_drop: false }`
[INFO] [stdout] 4d7e883bee387002b36a8b0def6ae3b4a41499fef4abe207de3cc8fb8317f4cc