[INFO] cloning repository https://github.com/DeviousCilantro/steganopng
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DeviousCilantro/steganopng" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeviousCilantro%2Fsteganopng", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeviousCilantro%2Fsteganopng'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7767a739682f1d8746a87a98066adbfcb0eadc50
[INFO] checking DeviousCilantro/steganopng 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%2FDeviousCilantro%2Fsteganopng" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/DeviousCilantro/steganopng
[INFO] finished tweaking git repo https://github.com/DeviousCilantro/steganopng
[INFO] tweaked toml for git repo https://github.com/DeviousCilantro/steganopng written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DeviousCilantro/steganopng 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/DeviousCilantro/steganopng 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 02a44e486945f73eb5753aad6c25857e0f0c7e841e37666353b55c40808ecbd7
[INFO] running `Command { std: "docker" "start" "-a" "02a44e486945f73eb5753aad6c25857e0f0c7e841e37666353b55c40808ecbd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02a44e486945f73eb5753aad6c25857e0f0c7e841e37666353b55c40808ecbd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02a44e486945f73eb5753aad6c25857e0f0c7e841e37666353b55c40808ecbd7", kill_on_drop: false }`
[INFO] [stdout] 02a44e486945f73eb5753aad6c25857e0f0c7e841e37666353b55c40808ecbd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b3a49ec29246b0050bc4992b9e66b867bf915b6f1186c9e07e19c5bfe8f4d95f
[INFO] running `Command { std: "docker" "start" "-a" "b3a49ec29246b0050bc4992b9e66b867bf915b6f1186c9e07e19c5bfe8f4d95f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]     Checking cpufeatures v0.2.8
[INFO] [stderr]     Checking crc-catalog v2.2.0
[INFO] [stderr]     Checking zeroize v1.6.0
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]     Checking crc v3.0.1
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking aead v0.5.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking aes v0.8.3
[INFO] [stderr]     Checking deoxys v0.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]    Compiling optional-fields-serde-macro v0.1.1
[INFO] [stderr]     Checking optional-field v0.1.4
[INFO] [stderr]     Checking steganopng v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<u8>, Infallible>
[INFO] [stdout]   --> src/chunk.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let data: Vec<u8> = c[8..c.len() - 4].try_into().unwrap();
[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<Vec<u8>, Infallible>
[INFO] [stdout]   --> src/png.rs:28:24
[INFO] [stdout]    |
[INFO] [stdout] 28 |             let data = chunk_list[count..count + length as usize].try_into().unwrap();
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `steganopng` (bin "steganopng") due to 2 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<Vec<u8>, Infallible>
[INFO] [stdout]   --> src/chunk.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let data: Vec<u8> = c[8..c.len() - 4].try_into().unwrap();
[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<Vec<u8>, Infallible>
[INFO] [stdout]   --> src/png.rs:28:24
[INFO] [stdout]    |
[INFO] [stdout] 28 |             let data = chunk_list[count..count + length as usize].try_into().unwrap();
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `steganopng` (bin "steganopng" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "b3a49ec29246b0050bc4992b9e66b867bf915b6f1186c9e07e19c5bfe8f4d95f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3a49ec29246b0050bc4992b9e66b867bf915b6f1186c9e07e19c5bfe8f4d95f", kill_on_drop: false }`
[INFO] [stdout] b3a49ec29246b0050bc4992b9e66b867bf915b6f1186c9e07e19c5bfe8f4d95f
