[INFO] cloning repository https://github.com/DrJP99/Pip_Explorer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DrJP99/Pip_Explorer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrJP99%2FPip_Explorer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrJP99%2FPip_Explorer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 041ee2c4fd2e2951bc0531675ec85b6df6bab114
[INFO] checking DrJP99/Pip_Explorer 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%2FDrJP99%2FPip_Explorer" "/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/DrJP99/Pip_Explorer
[INFO] finished tweaking git repo https://github.com/DrJP99/Pip_Explorer
[INFO] tweaked toml for git repo https://github.com/DrJP99/Pip_Explorer written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DrJP99/Pip_Explorer 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/DrJP99/Pip_Explorer 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] 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] 698be82af0494a326714b1eae0474d826019ee2523c4d829bb96a8a80f0a9ae4
[INFO] running `Command { std: "docker" "start" "-a" "698be82af0494a326714b1eae0474d826019ee2523c4d829bb96a8a80f0a9ae4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "698be82af0494a326714b1eae0474d826019ee2523c4d829bb96a8a80f0a9ae4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "698be82af0494a326714b1eae0474d826019ee2523c4d829bb96a8a80f0a9ae4", kill_on_drop: false }`
[INFO] [stdout] 698be82af0494a326714b1eae0474d826019ee2523c4d829bb96a8a80f0a9ae4
[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] b7a6f4e5e4a77c8b8cae64099010aca1d554930a69b2bd1e99cf7361c646c230
[INFO] running `Command { std: "docker" "start" "-a" "b7a6f4e5e4a77c8b8cae64099010aca1d554930a69b2bd1e99cf7361c646c230", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]     Checking unicode-width v0.1.12
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]     Checking pip_explorer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/main.rs:116:30
[INFO] [stdout]     |
[INFO] [stdout] 116 |                 if (index >= files.len().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] [stderr] error: could not compile `pip_explorer` (bin "pip_explorer") due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/main.rs:116:30
[INFO] [stdout]     |
[INFO] [stdout] 116 |                 if (index >= files.len().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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `pip_explorer` (bin "pip_explorer" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "b7a6f4e5e4a77c8b8cae64099010aca1d554930a69b2bd1e99cf7361c646c230", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7a6f4e5e4a77c8b8cae64099010aca1d554930a69b2bd1e99cf7361c646c230", kill_on_drop: false }`
[INFO] [stdout] b7a6f4e5e4a77c8b8cae64099010aca1d554930a69b2bd1e99cf7361c646c230
