[INFO] cloning repository https://github.com/blood-rogue/steg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blood-rogue/steg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblood-rogue%2Fsteg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblood-rogue%2Fsteg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9afbb1dc21a9637a6a5dafe50f188edfd5c26468
[INFO] checking blood-rogue/steg 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%2Fblood-rogue%2Fsteg" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/blood-rogue/steg
[INFO] finished tweaking git repo https://github.com/blood-rogue/steg
[INFO] tweaked toml for git repo https://github.com/blood-rogue/steg written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/blood-rogue/steg 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/blood-rogue/steg 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 968ba00f773e48a725e53550c181f564ce12046f388b339e0662ac2218d04bfe
[INFO] running `Command { std: "docker" "start" "-a" "968ba00f773e48a725e53550c181f564ce12046f388b339e0662ac2218d04bfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "968ba00f773e48a725e53550c181f564ce12046f388b339e0662ac2218d04bfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "968ba00f773e48a725e53550c181f564ce12046f388b339e0662ac2218d04bfe", kill_on_drop: false }`
[INFO] [stdout] 968ba00f773e48a725e53550c181f564ce12046f388b339e0662ac2218d04bfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c6e7fffb69bd0639aa50bd46a3f672f1d94be4542477a68e87e2b17b21a3aff1
[INFO] running `Command { std: "docker" "start" "-a" "c6e7fffb69bd0639aa50bd46a3f672f1d94be4542477a68e87e2b17b21a3aff1", kill_on_drop: false }`
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling jobserver v0.1.26
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling cc v1.0.82
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking flate2 v1.0.27
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]     Checking universal-hash v0.5.1
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking anstyle v1.0.2
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking polyval v0.6.1
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking fdeflate v0.3.0
[INFO] [stderr]     Checking anstream v0.5.0
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking half v2.2.1
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]     Checking png v0.17.10
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking clap_builder v4.4.0
[INFO] [stderr]    Compiling libwebp-sys v0.9.2
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking num-rational v0.4.1
[INFO] [stderr]     Checking gif v0.12.0
[INFO] [stderr]     Checking ghash v0.5.0
[INFO] [stderr]     Checking ctr v0.9.2
[INFO] [stderr]     Checking aes v0.8.3
[INFO] [stderr]     Checking aead v0.5.2
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking sha2 v0.10.7
[INFO] [stderr]     Checking aes-gcm v0.10.2
[INFO] [stderr]     Checking jpeg-decoder v0.3.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]     Checking tiff v0.9.0
[INFO] [stderr]    Compiling clap_derive v4.4.0
[INFO] [stderr]     Checking webp v0.2.5
[INFO] [stderr]     Checking pin-project v1.1.3
[INFO] [stderr]     Checking flume v0.10.14
[INFO] [stderr]     Checking exr v1.7.0
[INFO] [stderr]     Checking clap v4.4.0
[INFO] [stderr]     Checking image v0.24.7
[INFO] [stderr]     Checking steg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<&[u8], Infallible>
[INFO] [stdout]   --> src/bits.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 | /         bits[0..16]
[INFO] [stdout] 79 | |             .try_into()
[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<&[u8], Infallible>
[INFO] [stdout]   --> src/bits.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 | /         bits[0..16]
[INFO] [stdout] 79 | |             .try_into()
[INFO] [stdout]    | |_______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `steg` (bin "steg") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `steg` (bin "steg" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c6e7fffb69bd0639aa50bd46a3f672f1d94be4542477a68e87e2b17b21a3aff1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6e7fffb69bd0639aa50bd46a3f672f1d94be4542477a68e87e2b17b21a3aff1", kill_on_drop: false }`
[INFO] [stdout] c6e7fffb69bd0639aa50bd46a3f672f1d94be4542477a68e87e2b17b21a3aff1