[INFO] cloning repository https://github.com/Fireinfern/UnrealEnvTool
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Fireinfern/UnrealEnvTool" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFireinfern%2FUnrealEnvTool", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFireinfern%2FUnrealEnvTool'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4de41fb13587a8ef35814c0db2f9ab09d6f13700
[INFO] checking Fireinfern/UnrealEnvTool 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%2FFireinfern%2FUnrealEnvTool" "/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/Fireinfern/UnrealEnvTool
[INFO] finished tweaking git repo https://github.com/Fireinfern/UnrealEnvTool
[INFO] tweaked toml for git repo https://github.com/Fireinfern/UnrealEnvTool written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Fireinfern/UnrealEnvTool 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/Fireinfern/UnrealEnvTool 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: unused manifest key: package.author
[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] 2dbafd83675d1a52390fe31566a7bcb3632a888f5c2f6692cfff527561e74d29
[INFO] running `Command { std: "docker" "start" "-a" "2dbafd83675d1a52390fe31566a7bcb3632a888f5c2f6692cfff527561e74d29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2dbafd83675d1a52390fe31566a7bcb3632a888f5c2f6692cfff527561e74d29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dbafd83675d1a52390fe31566a7bcb3632a888f5c2f6692cfff527561e74d29", kill_on_drop: false }`
[INFO] [stdout] 2dbafd83675d1a52390fe31566a7bcb3632a888f5c2f6692cfff527561e74d29
[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] 8df814d2f230459c2c7907a2179d52f4ad12a84e77f2a84427b89f7fc29224c3
[INFO] running `Command { std: "docker" "start" "-a" "8df814d2f230459c2c7907a2179d52f4ad12a84e77f2a84427b89f7fc29224c3", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.author
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking unsafe-libyaml v0.2.2
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]     Checking once_cell v1.14.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]    Compiling cli-table-derive v0.4.5
[INFO] [stderr]    Compiling clap_derive v3.2.18
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking clap v3.2.20
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking serde_yaml v0.9.11
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking cli-table v0.4.7
[INFO] [stderr]     Checking unreal_enviroment_changer v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]  --> src/subcommands/register_version.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     version: 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: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/subcommands/register_version.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     path_to_bin: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/subcommands/change_env_version.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     version: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]  --> src/subcommands/register_version.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     version: 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: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/subcommands/register_version.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     path_to_bin: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/subcommands/change_env_version.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     version: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `unreal_enviroment_changer` (bin "unreal_enviroment_changer") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `unreal_enviroment_changer` (bin "unreal_enviroment_changer" test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "8df814d2f230459c2c7907a2179d52f4ad12a84e77f2a84427b89f7fc29224c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8df814d2f230459c2c7907a2179d52f4ad12a84e77f2a84427b89f7fc29224c3", kill_on_drop: false }`
[INFO] [stdout] 8df814d2f230459c2c7907a2179d52f4ad12a84e77f2a84427b89f7fc29224c3