[INFO] cloning repository https://github.com/moriyoshi-kasuga/envman
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/moriyoshi-kasuga/envman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoriyoshi-kasuga%2Fenvman", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoriyoshi-kasuga%2Fenvman'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec573ea3d3894eff7e6bcab7012369e607d1cb35
[INFO] checking moriyoshi-kasuga/envman against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoriyoshi-kasuga%2Fenvman" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/moriyoshi-kasuga/envman
[INFO] finished tweaking git repo https://github.com/moriyoshi-kasuga/envman
[INFO] tweaked toml for git repo https://github.com/moriyoshi-kasuga/envman written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/moriyoshi-kasuga/envman 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] [stderr]       Adding convert_case v0.8.0 (available: v0.9.0)
[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] [stderr]     Blocking waiting for file lock on package cache
[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] afe3bd4ea2fac9b37c00b301cc9b19da3d47ad0f65c12f30f76cadbff09a459a
[INFO] running `Command { std: "docker" "start" "-a" "afe3bd4ea2fac9b37c00b301cc9b19da3d47ad0f65c12f30f76cadbff09a459a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afe3bd4ea2fac9b37c00b301cc9b19da3d47ad0f65c12f30f76cadbff09a459a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afe3bd4ea2fac9b37c00b301cc9b19da3d47ad0f65c12f30f76cadbff09a459a", kill_on_drop: false }`
[INFO] [stdout] afe3bd4ea2fac9b37c00b301cc9b19da3d47ad0f65c12f30f76cadbff09a459a
[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] c3c3c3c6793de9e5f7000513771731a8f23efbf9c5cba9cbba1c7adcd4eab64a
[INFO] running `Command { std: "docker" "start" "-a" "c3c3c3c6793de9e5f7000513771731a8f23efbf9c5cba9cbba1c7adcd4eab64a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]     Checking unicode-ident v1.0.22
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling convert_case v0.8.0
[INFO] [stderr]     Checking syn v2.0.110
[INFO] [stderr]     Checking envman_derive_internals v2.1.0 (/opt/rustwide/workdir/envman_derive_internals)
[INFO] [stderr]     Checking envman_derive v2.1.0 (/opt/rustwide/workdir/envman_derive)
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]     Checking envman v2.1.0 (/opt/rustwide/workdir/envman)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> envman/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]  --> envman/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]   --> envman/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] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> envman/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 "option_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<String, Infallible>
[INFO] [stdout]  --> envman/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 "rename_test") due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> envman/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] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> envman/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] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> envman/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] [stderr] error: could not compile `envman` (test "array_test") due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> envman/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] [stderr] error: could not compile `envman` (test "alltime_parse_test") due to 1 previous error
[INFO] [stderr] error: could not compile `envman` (test "default_test") due to 1 previous error
[INFO] [stderr] error: could not compile `envman` (test "normal_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 "secret_test") due to 2 previous errors
[INFO] [stderr] error: could not compile `envman` (example "webapi") due to 1 previous error
[INFO] [stderr] error: could not compile `envman` (test "validation_advanced_test") due to 1 previous error
[INFO] [stdout] warning: field `required_field` is never read
[INFO] [stdout]   --> envman/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]  --> envman/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]   --> envman/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] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> envman/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]   --> envman/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]  --> envman/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 "error_test") due to 1 previous error; 1 warning emitted
[INFO] [stderr] error: could not compile `envman` (test "test_test") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c3c3c3c6793de9e5f7000513771731a8f23efbf9c5cba9cbba1c7adcd4eab64a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3c3c3c6793de9e5f7000513771731a8f23efbf9c5cba9cbba1c7adcd4eab64a", kill_on_drop: false }`
[INFO] [stdout] c3c3c3c6793de9e5f7000513771731a8f23efbf9c5cba9cbba1c7adcd4eab64a