[INFO] cloning repository https://github.com/sj-raima/rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sj-raima/rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsj-raima%2Frust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsj-raima%2Frust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72d4840dc281f36fb0eee4697294d662e713f030
[INFO] checking sj-raima/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%2Fsj-raima%2Frust" "/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/sj-raima/rust
[INFO] finished tweaking git repo https://github.com/sj-raima/rust
[INFO] tweaked toml for git repo https://github.com/sj-raima/rust written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sj-raima/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/sj-raima/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] 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] 08f3c308cf52de40e201a57c5fd723f6ad1bfdc5979e64c4377d74fe6bf2ed1f
[INFO] running `Command { std: "docker" "start" "-a" "08f3c308cf52de40e201a57c5fd723f6ad1bfdc5979e64c4377d74fe6bf2ed1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08f3c308cf52de40e201a57c5fd723f6ad1bfdc5979e64c4377d74fe6bf2ed1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08f3c308cf52de40e201a57c5fd723f6ad1bfdc5979e64c4377d74fe6bf2ed1f", kill_on_drop: false }`
[INFO] [stdout] 08f3c308cf52de40e201a57c5fd723f6ad1bfdc5979e64c4377d74fe6bf2ed1f
[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] ef18ae67cbd7985c574a478fcfdce8f0e7f27f5ccd69012ae9896618a5ab3d53
[INFO] running `Command { std: "docker" "start" "-a" "ef18ae67cbd7985c574a478fcfdce8f0e7f27f5ccd69012ae9896618a5ab3d53", kill_on_drop: false }`
[INFO] [stderr]     Checking rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<ExitCode, Infallible>
[INFO] [stdout]   --> src/main.rs:36:71
[INFO] [stdout]    |
[INFO] [stdout] 36 |   fn main() -> Result<std::process::ExitCode, std::convert::Infallible> {
[INFO] [stdout]    |  _______________________________________________________________________^
[INFO] [stdout] 37 | |     let args: Vec<String> = std::env::args().collect();
[INFO] [stdout] 38 | |     let mut run_list = false;
[INFO] [stdout] 39 | |     let mut run_mutex = false;
[INFO] [stdout] ...  |
[INFO] [stdout] 73 | |     Ok (std::process::ExitCode::SUCCESS)
[INFO] [stdout] 74 | | }
[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<ExitCode, Infallible>
[INFO] [stdout]   --> src/main.rs:47:24
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 return Ok (std::process::ExitCode::FAILURE);
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<ExitCode, Infallible>
[INFO] [stdout]   --> src/main.rs:60:24
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 return Ok (std::process::ExitCode::FAILURE);
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<ExitCode, Infallible>
[INFO] [stdout]   --> src/main.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     Ok (std::process::ExitCode::SUCCESS)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust` (bin "rust" test) due to 4 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<ExitCode, Infallible>
[INFO] [stdout]   --> src/main.rs:36:71
[INFO] [stdout]    |
[INFO] [stdout] 36 |   fn main() -> Result<std::process::ExitCode, std::convert::Infallible> {
[INFO] [stdout]    |  _______________________________________________________________________^
[INFO] [stdout] 37 | |     let args: Vec<String> = std::env::args().collect();
[INFO] [stdout] 38 | |     let mut run_list = false;
[INFO] [stdout] 39 | |     let mut run_mutex = false;
[INFO] [stdout] ...  |
[INFO] [stdout] 73 | |     Ok (std::process::ExitCode::SUCCESS)
[INFO] [stdout] 74 | | }
[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<ExitCode, Infallible>
[INFO] [stdout]   --> src/main.rs:47:24
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 return Ok (std::process::ExitCode::FAILURE);
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<ExitCode, Infallible>
[INFO] [stdout]   --> src/main.rs:60:24
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 return Ok (std::process::ExitCode::FAILURE);
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<ExitCode, Infallible>
[INFO] [stdout]   --> src/main.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     Ok (std::process::ExitCode::SUCCESS)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust` (bin "rust") due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "ef18ae67cbd7985c574a478fcfdce8f0e7f27f5ccd69012ae9896618a5ab3d53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef18ae67cbd7985c574a478fcfdce8f0e7f27f5ccd69012ae9896618a5ab3d53", kill_on_drop: false }`
[INFO] [stdout] ef18ae67cbd7985c574a478fcfdce8f0e7f27f5ccd69012ae9896618a5ab3d53
