[INFO] fetching crate rem-utils 0.1.6...
[INFO] checking rem-utils-0.1.6 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate rem-utils 0.1.6 into /workspace/builds/worker-0-tc2/source
[INFO] removed /workspace/builds/worker-0-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate rem-utils 0.1.6
[INFO] finished tweaking crates.io crate rem-utils 0.1.6
[INFO] tweaked toml for crates.io crate rem-utils 0.1.6 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rem-utils 0.1.6 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 94 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding nom v7.1.3 (available: v8.0.0)
[INFO] [stderr]       Adding string_cache v0.8.9 (available: v0.9.0)
[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-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] dbb8ccde1247d1b03da19f93ee8444ba23b9ad217cd8e99902345fd0f81ca170
[INFO] running `Command { std: "docker" "start" "-a" "dbb8ccde1247d1b03da19f93ee8444ba23b9ad217cd8e99902345fd0f81ca170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbb8ccde1247d1b03da19f93ee8444ba23b9ad217cd8e99902345fd0f81ca170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbb8ccde1247d1b03da19f93ee8444ba23b9ad217cd8e99902345fd0f81ca170", kill_on_drop: false }`
[INFO] [stdout] dbb8ccde1247d1b03da19f93ee8444ba23b9ad217cd8e99902345fd0f81ca170
[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] 26f2af66ebc86e1d662f6346030097be9c47861cb20eef83a5e70eb7f5b24bae
[INFO] running `Command { std: "docker" "start" "-a" "26f2af66ebc86e1d662f6346030097be9c47861cb20eef83a5e70eb7f5b24bae", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling pest v2.8.3
[INFO] [stderr]    Compiling erased-serde v0.4.9
[INFO] [stderr]     Checking hashbrown v0.15.5
[INFO] [stderr]     Checking ucd-trie v0.1.7
[INFO] [stderr]     Checking toml_parser v1.0.4
[INFO] [stderr]     Checking arraydeque v0.5.1
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking const-random v0.1.18
[INFO] [stderr]     Checking dlv-list v0.5.2
[INFO] [stderr]     Checking ordered-multimap v0.7.3
[INFO] [stderr]     Checking phf_shared v0.11.3
[INFO] [stderr]     Checking hashlink v0.10.0
[INFO] [stderr]     Checking new_debug_unreachable v1.0.6
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking ena v0.14.3
[INFO] [stderr]     Checking rust-ini v0.21.3
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking home v0.5.12
[INFO] [stderr]     Checking yaml-rust2 v0.10.4
[INFO] [stderr]    Compiling pest_meta v2.8.3
[INFO] [stderr]     Checking toml_datetime v0.7.3
[INFO] [stderr]     Checking serde_spanned v1.0.3
[INFO] [stderr]     Checking bitflags v2.10.0
[INFO] [stderr]     Checking serde_json v1.0.145
[INFO] [stderr]     Checking toml v0.9.8
[INFO] [stderr]     Checking serde-untagged v0.1.9
[INFO] [stderr]    Compiling pest_generator v2.8.3
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling pest_derive v2.8.3
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking ron v0.12.0
[INFO] [stderr]     Checking json5 v0.4.1
[INFO] [stderr]     Checking string_cache v0.8.9
[INFO] [stderr]     Checking config v0.15.19
[INFO] [stderr]     Checking rem-utils v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/lib.rs:264:32
[INFO] [stdout]     |
[INFO] [stdout] 264 |     let file_content: String = fs::read_to_string(&file_name).unwrap().parse().unwrap();
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/lib.rs:264:32
[INFO] [stdout]     |
[INFO] [stdout] 264 |     let file_content: String = fs::read_to_string(&file_name).unwrap().parse().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 `rem-utils` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rem-utils` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "26f2af66ebc86e1d662f6346030097be9c47861cb20eef83a5e70eb7f5b24bae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26f2af66ebc86e1d662f6346030097be9c47861cb20eef83a5e70eb7f5b24bae", kill_on_drop: false }`
[INFO] [stdout] 26f2af66ebc86e1d662f6346030097be9c47861cb20eef83a5e70eb7f5b24bae