[INFO] cloning repository https://github.com/lirsacc/dotenv-exec
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lirsacc/dotenv-exec" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flirsacc%2Fdotenv-exec", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flirsacc%2Fdotenv-exec'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5456c37b750d419bdae07d3b7bde307cc34d2a00
[INFO] checking lirsacc/dotenv-exec 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%2Flirsacc%2Fdotenv-exec" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lirsacc/dotenv-exec
[INFO] finished tweaking git repo https://github.com/lirsacc/dotenv-exec
[INFO] tweaked toml for git repo https://github.com/lirsacc/dotenv-exec written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lirsacc/dotenv-exec 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/lirsacc/dotenv-exec 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] dd2cf1139126449cf95d7a92e833ffb0ffec6397afd589d5ddfec31f3cad516e
[INFO] running `Command { std: "docker" "start" "-a" "dd2cf1139126449cf95d7a92e833ffb0ffec6397afd589d5ddfec31f3cad516e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd2cf1139126449cf95d7a92e833ffb0ffec6397afd589d5ddfec31f3cad516e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd2cf1139126449cf95d7a92e833ffb0ffec6397afd589d5ddfec31f3cad516e", kill_on_drop: false }`
[INFO] [stdout] dd2cf1139126449cf95d7a92e833ffb0ffec6397afd589d5ddfec31f3cad516e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 4363f92341db509046abe2066bcaf370d1ba72c0983acf586467d1e3c717156e
[INFO] running `Command { std: "docker" "start" "-a" "4363f92341db509046abe2066bcaf370d1ba72c0983acf586467d1e3c717156e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking users v0.9.1
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]     Checking structopt v0.3.5
[INFO] [stderr]     Checking dotenv-exec v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 | /   /// User to run the command as
[INFO] [stdout] 22 | |   #[structopt(short, long)]
[INFO] [stdout] 23 | |   user: Option<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<String, Infallible>
[INFO] [stdout]   --> src/main.rs:25:3
[INFO] [stdout]    |
[INFO] [stdout] 25 | /   /// Group to run the command as
[INFO] [stdout] 26 | |   #[structopt(short, long)]
[INFO] [stdout] 27 | |   group: Option<String>,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 29 | /   /// Working directory to run the command in
[INFO] [stdout] 30 | |   #[structopt(short, long)]
[INFO] [stdout] 31 | |   directory: Option<String>,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:33:3
[INFO] [stdout]    |
[INFO] [stdout] 33 | /   /// .env file(s) to load
[INFO] [stdout] 34 | |   #[structopt(short = "f", long = "file", multiple = true)]
[INFO] [stdout] 35 | |   files: Vec<PathBuf>,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:45:3
[INFO] [stdout]    |
[INFO] [stdout] 45 | /   /// Program to execute
[INFO] [stdout] 46 | |   cmd: String,
[INFO] [stdout]    | |_____________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:48:3
[INFO] [stdout]    |
[INFO] [stdout] 48 | /   /// Program arguments and options
[INFO] [stdout] 49 | |   args: Vec<String>,
[INFO] [stdout]    | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dotenv-exec` (bin "dotenv-exec" test) due to 6 previous errors
[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]   --> src/main.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 | /   /// User to run the command as
[INFO] [stdout] 22 | |   #[structopt(short, long)]
[INFO] [stdout] 23 | |   user: Option<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<String, Infallible>
[INFO] [stdout]   --> src/main.rs:25:3
[INFO] [stdout]    |
[INFO] [stdout] 25 | /   /// Group to run the command as
[INFO] [stdout] 26 | |   #[structopt(short, long)]
[INFO] [stdout] 27 | |   group: Option<String>,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 29 | /   /// Working directory to run the command in
[INFO] [stdout] 30 | |   #[structopt(short, long)]
[INFO] [stdout] 31 | |   directory: Option<String>,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:33:3
[INFO] [stdout]    |
[INFO] [stdout] 33 | /   /// .env file(s) to load
[INFO] [stdout] 34 | |   #[structopt(short = "f", long = "file", multiple = true)]
[INFO] [stdout] 35 | |   files: Vec<PathBuf>,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:45:3
[INFO] [stdout]    |
[INFO] [stdout] 45 | /   /// Program to execute
[INFO] [stdout] 46 | |   cmd: String,
[INFO] [stdout]    | |_____________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:48:3
[INFO] [stdout]    |
[INFO] [stdout] 48 | /   /// Program arguments and options
[INFO] [stdout] 49 | |   args: Vec<String>,
[INFO] [stdout]    | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dotenv-exec` (bin "dotenv-exec") due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "4363f92341db509046abe2066bcaf370d1ba72c0983acf586467d1e3c717156e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4363f92341db509046abe2066bcaf370d1ba72c0983acf586467d1e3c717156e", kill_on_drop: false }`
[INFO] [stdout] 4363f92341db509046abe2066bcaf370d1ba72c0983acf586467d1e3c717156e
