[INFO] fetching crate unmake 0.0.23...
[INFO] checking unmake-0.0.23 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate unmake 0.0.23 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate unmake 0.0.23
[INFO] finished tweaking crates.io crate unmake 0.0.23
[INFO] tweaked toml for crates.io crate unmake 0.0.23 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate unmake 0.0.23 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] crate crates.io crate unmake 0.0.23 already has a lockfile, it will not be regenerated
[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-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8d76070a43ed6cf1df390102bad2cd737956037ba714318fe909b069e4fd0ee
[INFO] running `Command { std: "docker" "start" "-a" "c8d76070a43ed6cf1df390102bad2cd737956037ba714318fe909b069e4fd0ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8d76070a43ed6cf1df390102bad2cd737956037ba714318fe909b069e4fd0ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8d76070a43ed6cf1df390102bad2cd737956037ba714318fe909b069e4fd0ee", kill_on_drop: false }`
[INFO] [stdout] c8d76070a43ed6cf1df390102bad2cd737956037ba714318fe909b069e4fd0ee
[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 -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] eec7eed59307fd30c91ae69bee13984017b9c046d6f6a0d4d5d97a55b46304f1
[INFO] running `Command { std: "docker" "start" "-a" "eec7eed59307fd30c91ae69bee13984017b9c046d6f6a0d4d5d97a55b46304f1", kill_on_drop: false }`
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling peg-runtime v0.8.5
[INFO] [stderr]     Checking die v0.2.0
[INFO] [stderr]     Checking getopts v0.2.24
[INFO] [stderr]    Compiling peg-macros v0.8.5
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking peg v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking unmake v0.0.23 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<unmake::inspect::Metadata, !>
[INFO] [stdout]   --> src/bin/unmake.rs:65:43
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let metadata: inspect::Metadata = inspect::analyze(pth).map_err(|err| die!(err)).unwrap();
[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 `unmake` (bin "unmake" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<unmake::inspect::Metadata, !>
[INFO] [stdout]   --> src/bin/unmake.rs:65:43
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let metadata: inspect::Metadata = inspect::analyze(pth).map_err(|err| die!(err)).unwrap();
[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 `unmake` (bin "unmake") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "eec7eed59307fd30c91ae69bee13984017b9c046d6f6a0d4d5d97a55b46304f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eec7eed59307fd30c91ae69bee13984017b9c046d6f6a0d4d5d97a55b46304f1", kill_on_drop: false }`
[INFO] [stdout] eec7eed59307fd30c91ae69bee13984017b9c046d6f6a0d4d5d97a55b46304f1