[INFO] cloning repository https://github.com/mgeselle/spectra-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mgeselle/spectra-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgeselle%2Fspectra-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgeselle%2Fspectra-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b5e0c60ce8d8edb868a2b699f8cda91777aa6bc
[INFO] checking mgeselle/spectra-rust 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%2Fmgeselle%2Fspectra-rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mgeselle/spectra-rust
[INFO] finished tweaking git repo https://github.com/mgeselle/spectra-rust
[INFO] tweaked toml for git repo https://github.com/mgeselle/spectra-rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mgeselle/spectra-rust 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/mgeselle/spectra-rust 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c01b95e4263f3c537b311612ca5ccc31d1dc536375a0bdda8279885c14c27fee
[INFO] running `Command { std: "docker" "start" "-a" "c01b95e4263f3c537b311612ca5ccc31d1dc536375a0bdda8279885c14c27fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c01b95e4263f3c537b311612ca5ccc31d1dc536375a0bdda8279885c14c27fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c01b95e4263f3c537b311612ca5ccc31d1dc536375a0bdda8279885c14c27fee", kill_on_drop: false }`
[INFO] [stdout] c01b95e4263f3c537b311612ca5ccc31d1dc536375a0bdda8279885c14c27fee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 336a68ca8627149d6ddb6bb37e43c4470b3e8f213b71ccb82c48516ae8d3bf39
[INFO] running `Command { std: "docker" "start" "-a" "336a68ca8627149d6ddb6bb37e43c4470b3e8f213b71ccb82c48516ae8d3bf39", kill_on_drop: false }`
[INFO] [stderr]     Checking spectra v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `comment` and `position` are never read
[INFO] [stdout]    --> src/fits.rs:128:5
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub struct HeaderEntry {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] 127 |     value: HeaderValue,
[INFO] [stdout] 128 |     comment: Option<String>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 129 |     position: u32,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `HeaderEntry` has a derived impl for the trait `Clone`, 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] warning: fields `comment` and `position` are never read
[INFO] [stdout]    --> src/fits.rs:128:5
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub struct HeaderEntry {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] 127 |     value: HeaderValue,
[INFO] [stdout] 128 |     comment: Option<String>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 129 |     position: u32,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `HeaderEntry` has a derived impl for the trait `Clone`, 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] warning: field `data` is never read
[INFO] [stdout]    --> src/fits.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | pub struct ImageHdu<T: ToHDU> {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 149 |     data: Option<Vec<T>>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `spectra::fits::open`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use spectra::fits::open;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `spectra::fits::open`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use spectra::fits::open;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     spectra::fits::open("/home/mgeselle/astro/raw/latest/M_103/Light/R/M_103_Light_R_002.fits");
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let _ = spectra::fits::open("/home/mgeselle/astro/raw/latest/M_103/Light/R/M_103_Light_R_002.fits");
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     spectra::fits::open("/home/mgeselle/astro/raw/latest/M_103/Light/R/M_103_Light_R_002.fits");
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let _ = spectra::fits::open("/home/mgeselle/astro/raw/latest/M_103/Light/R/M_103_Light_R_002.fits");
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "336a68ca8627149d6ddb6bb37e43c4470b3e8f213b71ccb82c48516ae8d3bf39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "336a68ca8627149d6ddb6bb37e43c4470b3e8f213b71ccb82c48516ae8d3bf39", kill_on_drop: false }`
[INFO] [stdout] 336a68ca8627149d6ddb6bb37e43c4470b3e8f213b71ccb82c48516ae8d3bf39
