[INFO] fetching crate jlucktay-grrs 0.2.0...
[INFO] checking jlucktay-grrs-0.2.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate jlucktay-grrs 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate jlucktay-grrs 0.2.0
[INFO] finished tweaking crates.io crate jlucktay-grrs 0.2.0
[INFO] tweaked toml for crates.io crate jlucktay-grrs 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate jlucktay-grrs 0.2.0 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 jlucktay-grrs 0.2.0 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 02816d1d10d91507f3c39bf23bf2ff2876d069333c7df7d3b5779e8b90d7fa2d
[INFO] running `Command { std: "docker" "start" "-a" "02816d1d10d91507f3c39bf23bf2ff2876d069333c7df7d3b5779e8b90d7fa2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02816d1d10d91507f3c39bf23bf2ff2876d069333c7df7d3b5779e8b90d7fa2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02816d1d10d91507f3c39bf23bf2ff2876d069333c7df7d3b5779e8b90d7fa2d", kill_on_drop: false }`
[INFO] [stdout] 02816d1d10d91507f3c39bf23bf2ff2876d069333c7df7d3b5779e8b90d7fa2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 0b596cc976774fcab59856cf11e9e16603eaed2adadec9c52ec71fccf849e610
[INFO] running `Command { std: "docker" "start" "-a" "0b596cc976774fcab59856cf11e9e16603eaed2adadec9c52ec71fccf849e610", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]    Compiling os_str_bytes v6.1.0
[INFO] [stderr]    Compiling hashbrown v0.12.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]    Compiling roff v0.2.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.10
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking globset v0.4.9
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]     Checking assert_cmd v2.0.4
[INFO] [stderr]     Checking assert_fs v1.0.7
[INFO] [stderr]    Compiling clap_derive v3.2.7
[INFO] [stderr]    Compiling clap v3.2.12
[INFO] [stderr]    Compiling clap_mangen v0.1.10
[INFO] [stderr]    Compiling jlucktay-grrs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/lib.rs:21:6
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub pattern: 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 `jlucktay-grrs` (build script) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0b596cc976774fcab59856cf11e9e16603eaed2adadec9c52ec71fccf849e610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b596cc976774fcab59856cf11e9e16603eaed2adadec9c52ec71fccf849e610", kill_on_drop: false }`
[INFO] [stdout] 0b596cc976774fcab59856cf11e9e16603eaed2adadec9c52ec71fccf849e610