[INFO] cloning repository https://github.com/mmheroes/mmheroes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mmheroes/mmheroes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmheroes%2Fmmheroes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmheroes%2Fmmheroes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4b4328ade4cff73a93ea774f099fec9947b8f69
[INFO] checking mmheroes/mmheroes 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%2Fmmheroes%2Fmmheroes" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mmheroes/mmheroes
[INFO] finished tweaking git repo https://github.com/mmheroes/mmheroes
[INFO] tweaked toml for git repo https://github.com/mmheroes/mmheroes written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mmheroes/mmheroes 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/mmheroes/mmheroes 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 667e047a50c38bd8d0fd9e868977bc339cc93ab97fbeaf111148868e616e64f5
[INFO] running `Command { std: "docker" "start" "-a" "667e047a50c38bd8d0fd9e868977bc339cc93ab97fbeaf111148868e616e64f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "667e047a50c38bd8d0fd9e868977bc339cc93ab97fbeaf111148868e616e64f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "667e047a50c38bd8d0fd9e868977bc339cc93ab97fbeaf111148868e616e64f5", kill_on_drop: false }`
[INFO] [stdout] 667e047a50c38bd8d0fd9e868977bc339cc93ab97fbeaf111148868e616e64f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d22da64ff50e4f9110530d66c8a29be3aca968ad29a98513ac7f61148ddb9bcc
[INFO] running `Command { std: "docker" "start" "-a" "d22da64ff50e4f9110530d66c8a29be3aca968ad29a98513ac7f61148ddb9bcc", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.18
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]    Compiling bitfield-struct v0.9.3
[INFO] [stderr]    Compiling ncurses v5.101.0
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking directories v5.0.1
[INFO] [stderr]     Checking pancurses v0.17.0
[INFO] [stderr]     Checking strum v0.26.3
[INFO] [stderr]     Checking mmheroes-core v0.1.0 (/opt/rustwide/workdir/mmheroes-core-rs)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> mmheroes-core-rs/src/util/async_support.rs:169:13
[INFO] [stdout]     |
[INFO] [stdout] 169 |         let mut executor = PromptingExecutor::new(
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> mmheroes-core-rs/src/util/async_support.rs:242:13
[INFO] [stdout]     |
[INFO] [stdout] 242 |         let mut executor =
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> mmheroes-core-rs/src/logic/mod.rs:258:29
[INFO] [stdout]     |
[INFO] [stdout] 258 |     pub fn observable_state(&self) -> Ref<ObservableGameState> {
[INFO] [stdout]     |                             ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 258 |     pub fn observable_state(&self) -> Ref<'_, ObservableGameState> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> mmheroes-core-rs/src/logic/timetable.rs:115:59
[INFO] [stdout]     |
[INFO] [stdout] 115 |       fn try_from(value: Time) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 116 | |         Ok(u64::from(value.0))
[INFO] [stdout] 117 | |     }
[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<u64, Infallible>
[INFO] [stdout]    --> mmheroes-core-rs/src/logic/timetable.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |         Ok(u64::from(value.0))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mmheroes-core` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> mmheroes-core-rs/src/logic/mod.rs:258:29
[INFO] [stdout]     |
[INFO] [stdout] 258 |     pub fn observable_state(&self) -> Ref<ObservableGameState> {
[INFO] [stdout]     |                             ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 258 |     pub fn observable_state(&self) -> Ref<'_, ObservableGameState> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> mmheroes-core-rs/src/logic/timetable.rs:115:59
[INFO] [stdout]     |
[INFO] [stdout] 115 |       fn try_from(value: Time) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 116 | |         Ok(u64::from(value.0))
[INFO] [stdout] 117 | |     }
[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<u64, Infallible>
[INFO] [stdout]    --> mmheroes-core-rs/src/logic/timetable.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |         Ok(u64::from(value.0))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mmheroes-core` (lib test) due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "d22da64ff50e4f9110530d66c8a29be3aca968ad29a98513ac7f61148ddb9bcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d22da64ff50e4f9110530d66c8a29be3aca968ad29a98513ac7f61148ddb9bcc", kill_on_drop: false }`
[INFO] [stdout] d22da64ff50e4f9110530d66c8a29be3aca968ad29a98513ac7f61148ddb9bcc
