[INFO] cloning repository https://github.com/NicolasBuchin/extract_chains
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NicolasBuchin/extract_chains" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicolasBuchin%2Fextract_chains", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicolasBuchin%2Fextract_chains'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8add7702818fb773e2332dd8ad6630f09f78ef29
[INFO] checking NicolasBuchin/extract_chains 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%2FNicolasBuchin%2Fextract_chains" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/NicolasBuchin/extract_chains
[INFO] finished tweaking git repo https://github.com/NicolasBuchin/extract_chains
[INFO] tweaked toml for git repo https://github.com/NicolasBuchin/extract_chains written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/NicolasBuchin/extract_chains 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 git repo https://github.com/NicolasBuchin/extract_chains 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6adea9ef15aa15e7f1aea583b09464771958569257017d5e0091d5d8bad0b695
[INFO] running `Command { std: "docker" "start" "-a" "6adea9ef15aa15e7f1aea583b09464771958569257017d5e0091d5d8bad0b695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6adea9ef15aa15e7f1aea583b09464771958569257017d5e0091d5d8bad0b695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6adea9ef15aa15e7f1aea583b09464771958569257017d5e0091d5d8bad0b695", kill_on_drop: false }`
[INFO] [stdout] 6adea9ef15aa15e7f1aea583b09464771958569257017d5e0091d5d8bad0b695
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 81167ace2faa92c47f2b58ffdf3c34e2f0bb14ef77b7d947763ac6d6d463ea15
[INFO] running `Command { std: "docker" "start" "-a" "81167ace2faa92c47f2b58ffdf3c34e2f0bb14ef77b7d947763ac6d6d463ea15", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling pkg-config v0.3.32
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling cc v1.2.32
[INFO] [stderr]     Checking jpeg-decoder v0.3.2
[INFO] [stderr]     Checking colorchoice v1.0.4
[INFO] [stderr]     Checking anstyle-parse v0.2.7
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking anstyle-query v1.1.4
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking bytemuck v1.23.2
[INFO] [stderr]     Checking anstyle v1.0.11
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling font-kit v0.14.3
[INFO] [stderr]     Checking libloading v0.8.8
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking fdeflate v0.3.7
[INFO] [stderr]     Checking dlib v0.5.2
[INFO] [stderr]     Checking weezl v0.1.10
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking float-ord v0.3.2
[INFO] [stderr]     Checking iana-time-zone v0.1.63
[INFO] [stderr]     Checking clap_lex v0.7.5
[INFO] [stderr]     Checking bitflags v2.9.1
[INFO] [stderr]     Checking anstream v0.6.20
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking ttf-parser v0.20.0
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking gif v0.12.0
[INFO] [stderr]    Compiling yeslogic-fontconfig-sys v6.0.0
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]     Checking clap_builder v4.5.43
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]    Compiling pathfinder_simd v0.5.5
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking dirs-sys v0.5.0
[INFO] [stderr]     Checking png v0.17.16
[INFO] [stderr]     Checking dirs v6.0.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking pathfinder_geometry v0.5.1
[INFO] [stderr]    Compiling freetype-sys v0.20.1
[INFO] [stderr]     Checking image v0.24.9
[INFO] [stderr]    Compiling clap_derive v4.5.41
[INFO] [stderr]     Checking plotters-bitmap v0.3.7
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking clap v4.5.43
[INFO] [stderr]     Checking extract_chains v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `qspan` is never read
[INFO] [stdout]   --> src/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct Chain {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 28 |     qspan: [u32; 2],
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Chain` has derived impls for the traits `Clone` and `Debug`, but these are 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<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:190:21
[INFO] [stdout]     |
[INFO] [stdout] 190 |           let cigar = std::str::from_utf8(&bytes[start..*i])
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 191 | |             .unwrap()
[INFO] [stdout] 192 | |             .parse()
[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/main.rs:210:25
[INFO] [stdout]     |
[INFO] [stdout] 210 |           let ssw_cigar = std::str::from_utf8(&bytes[start..*i])
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 211 | |             .unwrap()
[INFO] [stdout] 212 | |             .parse()
[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/main.rs:239:16
[INFO] [stdout]     |
[INFO] [stdout] 239 |       let name = std::str::from_utf8(&bytes[start..*i])
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 240 | |         .unwrap()
[INFO] [stdout] 241 | |         .parse()
[INFO] [stdout]     | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `extract_chains` (bin "extract_chains" test) due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `qspan` is never read
[INFO] [stdout]   --> src/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct Chain {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 28 |     qspan: [u32; 2],
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Chain` has derived impls for the traits `Clone` and `Debug`, but these are 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<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:190:21
[INFO] [stdout]     |
[INFO] [stdout] 190 |           let cigar = std::str::from_utf8(&bytes[start..*i])
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 191 | |             .unwrap()
[INFO] [stdout] 192 | |             .parse()
[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/main.rs:210:25
[INFO] [stdout]     |
[INFO] [stdout] 210 |           let ssw_cigar = std::str::from_utf8(&bytes[start..*i])
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 211 | |             .unwrap()
[INFO] [stdout] 212 | |             .parse()
[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/main.rs:239:16
[INFO] [stdout]     |
[INFO] [stdout] 239 |       let name = std::str::from_utf8(&bytes[start..*i])
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 240 | |         .unwrap()
[INFO] [stdout] 241 | |         .parse()
[INFO] [stdout]     | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `extract_chains` (bin "extract_chains") due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "81167ace2faa92c47f2b58ffdf3c34e2f0bb14ef77b7d947763ac6d6d463ea15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81167ace2faa92c47f2b58ffdf3c34e2f0bb14ef77b7d947763ac6d6d463ea15", kill_on_drop: false }`
[INFO] [stdout] 81167ace2faa92c47f2b58ffdf3c34e2f0bb14ef77b7d947763ac6d6d463ea15
