[INFO] fetching crate envman 2.1.0...
[INFO] checking envman-2.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate envman 2.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate envman 2.1.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate envman 2.1.0
[INFO] tweaked toml for crates.io crate envman 2.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate envman 2.1.0 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 envman 2.1.0 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] eb0bb3b405d83e86249c2b780ee1b87393c5c11f2b4432015aa3d4ecae5737bf
[INFO] running `Command { std: "docker" "start" "-a" "eb0bb3b405d83e86249c2b780ee1b87393c5c11f2b4432015aa3d4ecae5737bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb0bb3b405d83e86249c2b780ee1b87393c5c11f2b4432015aa3d4ecae5737bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb0bb3b405d83e86249c2b780ee1b87393c5c11f2b4432015aa3d4ecae5737bf", kill_on_drop: false }`
[INFO] [stdout] eb0bb3b405d83e86249c2b780ee1b87393c5c11f2b4432015aa3d4ecae5737bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 2a176a1a46b6487df36e43a4396400142c8eab858c8b0fe32a491fd913ed0ddf
[INFO] running `Command { std: "docker" "start" "-a" "2a176a1a46b6487df36e43a4396400142c8eab858c8b0fe32a491fd913ed0ddf", kill_on_drop: false }`
[INFO] [stderr]    Compiling convert_case v0.8.0
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling envman_derive_internals v2.1.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling envman_derive v2.1.0
[INFO] [stderr]     Checking thiserror v2.0.17
[INFO] [stderr]     Checking envman v2.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> examples/webapi.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[derive(EnvMan)]
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the derive macro `EnvMan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> tests/array_test.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(EnvMan)]
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]   = note: this error originates in the derive macro `EnvMan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> tests/array_test.rs:57:10
[INFO] [stdout]    |
[INFO] [stdout] 57 | #[derive(EnvMan)]
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `EnvMan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `envman` (test "array_test") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `envman` (example "webapi") due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> tests/alltime_parse_test.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(EnvMan, Debug, PartialEq)]
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]   = note: this error originates in the derive macro `EnvMan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `envman` (test "alltime_parse_test") due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> tests/rename_test.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(EnvMan, Debug, PartialEq)]
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]   = note: this error originates in the derive macro `EnvMan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `envman` (test "rename_test") due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> tests/default_test.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(EnvMan, Debug, PartialEq)]
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]   = note: this error originates in the derive macro `EnvMan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> tests/validation_advanced_test.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[derive(EnvMan)]
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the derive macro `EnvMan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `envman` (test "validation_advanced_test") due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> tests/option_test.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(EnvMan, Debug, PartialEq)]
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]   = note: this error originates in the derive macro `EnvMan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> tests/secret_test.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(EnvMan, EnvManDebug)]
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]   = note: this error originates in the derive macro `EnvMan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> tests/secret_test.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 | #[derive(EnvMan, EnvManDebug)]
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `EnvMan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `envman` (test "option_test") due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> tests/rename_all_test.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(EnvMan, Debug, PartialEq)]
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]   = note: this error originates in the derive macro `EnvMan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> tests/normal_test.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(EnvMan, Debug, PartialEq)]
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]   = note: this error originates in the derive macro `EnvMan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `envman` (test "secret_test") due to 2 previous errors
[INFO] [stderr] error: could not compile `envman` (test "normal_test") due to 1 previous error
[INFO] [stdout] warning: field `required_field` is never read
[INFO] [stdout]   --> tests/error_test.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub struct MissingConfig {
[INFO] [stdout]    |                ------------- field in this struct
[INFO] [stdout] 34 |         pub required_field: String,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MissingConfig` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> tests/error_test.rs:31:14
[INFO] [stdout]    |
[INFO] [stdout] 31 |     #[derive(EnvMan, Debug)]
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the derive macro `EnvMan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> tests/test_test.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(EnvMan, Debug, PartialEq)]
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]   = note: this error originates in the derive macro `EnvMan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `envman` (test "default_test") due to 1 previous error
[INFO] [stderr] error: could not compile `envman` (test "test_test") due to 1 previous error
[INFO] [stderr] error: could not compile `envman` (test "rename_all_test") due to 1 previous error
[INFO] [stderr] error: could not compile `envman` (test "error_test") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "2a176a1a46b6487df36e43a4396400142c8eab858c8b0fe32a491fd913ed0ddf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a176a1a46b6487df36e43a4396400142c8eab858c8b0fe32a491fd913ed0ddf", kill_on_drop: false }`
[INFO] [stdout] 2a176a1a46b6487df36e43a4396400142c8eab858c8b0fe32a491fd913ed0ddf