[INFO] fetching crate codesnip 0.4.1...
[INFO] checking codesnip-0.4.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate codesnip 0.4.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate codesnip 0.4.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate codesnip 0.4.1
[INFO] tweaked toml for crates.io crate codesnip 0.4.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate codesnip 0.4.1 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 codesnip 0.4.1 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] a40eff0af5464390604098e23f0409169117bde4078234d6390c9b1b0914e85b
[INFO] running `Command { std: "docker" "start" "-a" "a40eff0af5464390604098e23f0409169117bde4078234d6390c9b1b0914e85b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a40eff0af5464390604098e23f0409169117bde4078234d6390c9b1b0914e85b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a40eff0af5464390604098e23f0409169117bde4078234d6390c9b1b0914e85b", kill_on_drop: false }`
[INFO] [stdout] a40eff0af5464390604098e23f0409169117bde4078234d6390c9b1b0914e85b
[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] c0baee1626ef8274453ecda62859088ff642110eea0179ea0f9eec4b539b48a7
[INFO] running `Command { std: "docker" "start" "-a" "c0baee1626ef8274453ecda62859088ff642110eea0179ea0f9eec4b539b48a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling libc v0.2.133
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking once_cell v1.20.3
[INFO] [stderr]     Checking writeable v0.5.5
[INFO] [stderr]     Checking litemap v0.7.4
[INFO] [stderr]     Checking icu_locid_transform_data v1.5.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]     Checking icu_properties_data v1.5.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking utf16_iter v1.0.5
[INFO] [stderr]    Compiling syn v1.0.100
[INFO] [stderr]     Checking icu_normalizer_data v1.5.0
[INFO] [stderr]     Checking write16 v1.0.0
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stderr]    Compiling unicode-segmentation v1.10.0
[INFO] [stderr]    Compiling camino v1.1.1
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]     Checking quote v1.0.38
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling cc v1.2.13
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling anyhow v1.0.65
[INFO] [stderr]     Checking indexmap v2.7.1
[INFO] [stderr]     Checking winnow v0.7.2
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rayon-core v1.9.3
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]     Checking console v0.15.1
[INFO] [stderr]     Checking log v0.4.25
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking bitflags v2.8.0
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking indicatif v0.17.1
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]    Compiling libz-sys v1.1.21
[INFO] [stderr]    Compiling openssl-sys v0.9.105
[INFO] [stderr]    Compiling libssh2-sys v0.3.1
[INFO] [stderr]    Compiling libgit2-sys v0.18.0+1.9.0
[INFO] [stderr]     Checking rayon v1.5.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking rust_minify v0.1.3
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]    Compiling zerofrom-derive v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]    Compiling yoke-derive v0.7.5
[INFO] [stderr]    Compiling zerovec-derive v0.10.3
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling icu_provider_macros v1.5.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.11
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling codesnip_attr v0.4.0
[INFO] [stderr]     Checking zerofrom v0.1.5
[INFO] [stderr]     Checking yoke v0.7.5
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking zerovec v0.10.4
[INFO] [stderr]     Checking thiserror v2.0.11
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling serde_with_macros v3.12.0
[INFO] [stderr]     Checking tinystr v0.7.6
[INFO] [stderr]     Checking icu_collections v1.5.0
[INFO] [stderr]     Checking icu_locid v1.5.0
[INFO] [stderr]     Checking icu_provider v1.5.0
[INFO] [stderr]     Checking icu_locid_transform v1.5.0
[INFO] [stderr]     Checking icu_properties v1.5.1
[INFO] [stderr]     Checking toml_datetime v0.6.8
[INFO] [stderr]     Checking serde_spanned v0.6.8
[INFO] [stderr]     Checking cargo-platform v0.1.2
[INFO] [stderr]     Checking toml_edit v0.22.24
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking codesnip_core v0.4.0
[INFO] [stderr]     Checking serde_with v3.12.0
[INFO] [stderr]     Checking cargo_metadata v0.18.1
[INFO] [stderr]     Checking icu_normalizer v1.5.0
[INFO] [stderr]     Checking idna_adapter v1.2.0
[INFO] [stderr]     Checking idna v1.0.3
[INFO] [stderr]     Checking url v2.5.4
[INFO] [stderr]     Checking toml v0.8.20
[INFO] [stderr]     Checking git2 v0.20.0
[INFO] [stderr]     Checking codesnip v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/lib.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 | /         /// snippet name.
[INFO] [stdout] 72 | |         #[structopt(value_name = "NAME")]
[INFO] [stdout] 73 | |         name: String,
[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: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/lib.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 | /         /// excludes.
[INFO] [stdout] 75 | |         #[structopt(short, long, value_name = "NAME")]
[INFO] [stdout] 76 | |         excludes: Vec<String>,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/lib.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 | /         #[structopt(long, value_name = "TOOLCHAIN", default_value = "stable")]
[INFO] [stdout] 81 | |         /// release channel or custom toolchain.
[INFO] [stdout] 82 | |         toolchain: String,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/lib.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 | /         #[structopt(long, value_name = "EDITION", default_value = "2021")]
[INFO] [stdout] 84 | |         /// edition of the compiler.
[INFO] [stdout] 85 | |         edition: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `codesnip` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/lib.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 | /         /// snippet name.
[INFO] [stdout] 72 | |         #[structopt(value_name = "NAME")]
[INFO] [stdout] 73 | |         name: String,
[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: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/lib.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 | /         /// excludes.
[INFO] [stdout] 75 | |         #[structopt(short, long, value_name = "NAME")]
[INFO] [stdout] 76 | |         excludes: Vec<String>,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/lib.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 | /         #[structopt(long, value_name = "TOOLCHAIN", default_value = "stable")]
[INFO] [stdout] 81 | |         /// release channel or custom toolchain.
[INFO] [stdout] 82 | |         toolchain: String,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/lib.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 | /         #[structopt(long, value_name = "EDITION", default_value = "2021")]
[INFO] [stdout] 84 | |         /// edition of the compiler.
[INFO] [stdout] 85 | |         edition: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `codesnip` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "c0baee1626ef8274453ecda62859088ff642110eea0179ea0f9eec4b539b48a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0baee1626ef8274453ecda62859088ff642110eea0179ea0f9eec4b539b48a7", kill_on_drop: false }`
[INFO] [stdout] c0baee1626ef8274453ecda62859088ff642110eea0179ea0f9eec4b539b48a7
