[INFO] cloning repository https://github.com/praveenlodhiofficial/lets-get-rusty
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/praveenlodhiofficial/lets-get-rusty" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpraveenlodhiofficial%2Flets-get-rusty", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpraveenlodhiofficial%2Flets-get-rusty'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ee4c15a1aec77a9685e433cff91df9bf6a44aac
[INFO] checking praveenlodhiofficial/lets-get-rusty 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%2Fpraveenlodhiofficial%2Flets-get-rusty" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/praveenlodhiofficial/lets-get-rusty
[INFO] finished tweaking git repo https://github.com/praveenlodhiofficial/lets-get-rusty
[INFO] tweaked toml for git repo https://github.com/praveenlodhiofficial/lets-get-rusty written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/praveenlodhiofficial/lets-get-rusty 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/praveenlodhiofficial/lets-get-rusty 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] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2024 which implies `resolver = "3"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2024 resolver, specify `workspace.resolver = "3"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 9274f18b3b9e376a232289b1b8898662154afe665fb623b2ce1d80418b1a903e
[INFO] running `Command { std: "docker" "start" "-a" "9274f18b3b9e376a232289b1b8898662154afe665fb623b2ce1d80418b1a903e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9274f18b3b9e376a232289b1b8898662154afe665fb623b2ce1d80418b1a903e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9274f18b3b9e376a232289b1b8898662154afe665fb623b2ce1d80418b1a903e", kill_on_drop: false }`
[INFO] [stdout] 9274f18b3b9e376a232289b1b8898662154afe665fb623b2ce1d80418b1a903e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 4c9a6199ff9e19656e984b8e0d59328c14e609a48e697e8f73cdbe2dcbcd109a
[INFO] running `Command { std: "docker" "start" "-a" "4c9a6199ff9e19656e984b8e0d59328c14e609a48e697e8f73cdbe2dcbcd109a", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2024 which implies `resolver = "3"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2024 resolver, specify `workspace.resolver = "3"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.173
[INFO] [stderr]     Checking hello_world v0.1.0 (/opt/rustwide/workdir/01-getting-started/hello_world)
[INFO] [stderr]     Checking ownership v0.1.0 (/opt/rustwide/workdir/04-undestanding-ownership/ownership)
[INFO] [stderr]     Checking the_slice_type v0.1.0 (/opt/rustwide/workdir/04-undestanding-ownership/the_slice_type)
[INFO] [stderr]     Checking control_flow v0.1.0 (/opt/rustwide/workdir/03-common-programming-concept/control_flow)
[INFO] [stderr]     Checking functions v0.1.0 (/opt/rustwide/workdir/03-common-programming-concept/functions)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> 04-undestanding-ownership/the_slice_type/src/main.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut string = string.trim().parse().expect("Unable to reamove space.");
[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 `the_slice_type` (bin "the_slice_type" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> 04-undestanding-ownership/the_slice_type/src/main.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut string = string.trim().parse().expect("Unable to reamove space.");
[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 `the_slice_type` (bin "the_slice_type") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "4c9a6199ff9e19656e984b8e0d59328c14e609a48e697e8f73cdbe2dcbcd109a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c9a6199ff9e19656e984b8e0d59328c14e609a48e697e8f73cdbe2dcbcd109a", kill_on_drop: false }`
[INFO] [stdout] 4c9a6199ff9e19656e984b8e0d59328c14e609a48e697e8f73cdbe2dcbcd109a