[INFO] cloning repository https://github.com/LuisBarroso37/PNGme [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LuisBarroso37/PNGme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLuisBarroso37%2FPNGme", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLuisBarroso37%2FPNGme'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 428cba82f0fed9a55141122b36d96bac00e34bdb [INFO] checking LuisBarroso37/PNGme 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%2FLuisBarroso37%2FPNGme" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/LuisBarroso37/PNGme [INFO] finished tweaking git repo https://github.com/LuisBarroso37/PNGme [INFO] tweaked toml for git repo https://github.com/LuisBarroso37/PNGme written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/LuisBarroso37/PNGme 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/LuisBarroso37/PNGme 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] b198e91d03760a182c6bc61b3a30f08310ec14eca73a0a5702d2fd8c6df25b3c [INFO] running `Command { std: "docker" "start" "-a" "b198e91d03760a182c6bc61b3a30f08310ec14eca73a0a5702d2fd8c6df25b3c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b198e91d03760a182c6bc61b3a30f08310ec14eca73a0a5702d2fd8c6df25b3c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b198e91d03760a182c6bc61b3a30f08310ec14eca73a0a5702d2fd8c6df25b3c", kill_on_drop: false }` [INFO] [stdout] b198e91d03760a182c6bc61b3a30f08310ec14eca73a0a5702d2fd8c6df25b3c [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] b7a5372ddeac960b50de4bbc227f0e3f0e80564e68a74b498c3d82a8c16221a8 [INFO] running `Command { std: "docker" "start" "-a" "b7a5372ddeac960b50de4bbc227f0e3f0e80564e68a74b498c3d82a8c16221a8", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling build_const v0.2.2 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Compiling crc v1.8.1 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling structopt-derive v0.4.14 [INFO] [stderr] Checking structopt v0.3.21 [INFO] [stderr] Checking pngme v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: std::result::Result [INFO] [stdout] --> src/args.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | / /// Message to be encoded in PNG file [INFO] [stdout] 17 | | pub message: 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: ControlFlow, Vec> [INFO] [stdout] --> src/chunk.rs:109:29 [INFO] [stdout] | [INFO] [stdout] 109 | let data: Vec = data.try_into()?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::result::Result, Infallible> [INFO] [stdout] --> src/chunk.rs:109:29 [INFO] [stdout] | [INFO] [stdout] 109 | let data: Vec = data.try_into()?; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `pngme` (bin "pngme") due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: this type will no longer be must used: std::result::Result [INFO] [stdout] --> src/args.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | / /// Message to be encoded in PNG file [INFO] [stdout] 17 | | pub message: 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: ControlFlow, Vec> [INFO] [stdout] --> src/chunk.rs:109:29 [INFO] [stdout] | [INFO] [stdout] 109 | let data: Vec = data.try_into()?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::result::Result, Infallible> [INFO] [stdout] --> src/chunk.rs:109:29 [INFO] [stdout] | [INFO] [stdout] 109 | let data: Vec = data.try_into()?; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `pngme` (bin "pngme" test) due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "b7a5372ddeac960b50de4bbc227f0e3f0e80564e68a74b498c3d82a8c16221a8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b7a5372ddeac960b50de4bbc227f0e3f0e80564e68a74b498c3d82a8c16221a8", kill_on_drop: false }` [INFO] [stdout] b7a5372ddeac960b50de4bbc227f0e3f0e80564e68a74b498c3d82a8c16221a8