[INFO] cloning repository https://github.com/zxz100493/demo-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zxz100493/demo-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzxz100493%2Fdemo-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzxz100493%2Fdemo-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1ea08d38a7dd77797f16d8634b05d39673d756dc
[INFO] checking zxz100493/demo-rust 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%2Fzxz100493%2Fdemo-rust" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zxz100493/demo-rust
[INFO] finished tweaking git repo https://github.com/zxz100493/demo-rust
[INFO] tweaked toml for git repo https://github.com/zxz100493/demo-rust written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zxz100493/demo-rust 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/zxz100493/demo-rust 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 409ac16c9e8b8de16c0770d63a870373087f915e025a4dab7d54f5fa17cd0626
[INFO] running `Command { std: "docker" "start" "-a" "409ac16c9e8b8de16c0770d63a870373087f915e025a4dab7d54f5fa17cd0626", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "409ac16c9e8b8de16c0770d63a870373087f915e025a4dab7d54f5fa17cd0626", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "409ac16c9e8b8de16c0770d63a870373087f915e025a4dab7d54f5fa17cd0626", kill_on_drop: false }`
[INFO] [stdout] 409ac16c9e8b8de16c0770d63a870373087f915e025a4dab7d54f5fa17cd0626
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 4c78fce72d50eaea8de0d3e772b96c48291b8cdea93d4c4648975d0ed318a0b3
[INFO] running `Command { std: "docker" "start" "-a" "4c78fce72d50eaea8de0d3e772b96c48291b8cdea93d4c4648975d0ed318a0b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.177
[INFO] [stderr]    Compiling serde_derive v1.0.177
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]     Checking home v0.5.5
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking my-rust-tools v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | /         /// The task description text.
[INFO] [stdout] 22 | |         #[structopt()]
[INFO] [stdout] 23 | |         text: 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/cli.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | /         /// The task description text.
[INFO] [stdout] 22 | |         #[structopt()]
[INFO] [stdout] 23 | |         text: String,
[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 `my-rust-tools` (bin "my-rust-tools" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `my-rust-tools` (bin "my-rust-tools") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "4c78fce72d50eaea8de0d3e772b96c48291b8cdea93d4c4648975d0ed318a0b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c78fce72d50eaea8de0d3e772b96c48291b8cdea93d4c4648975d0ed318a0b3", kill_on_drop: false }`
[INFO] [stdout] 4c78fce72d50eaea8de0d3e772b96c48291b8cdea93d4c4648975d0ed318a0b3
