[INFO] fetching crate libmonitor 0.1.2... [INFO] checking libmonitor-0.1.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate libmonitor 0.1.2 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate libmonitor 0.1.2 [INFO] finished tweaking crates.io crate libmonitor 0.1.2 [INFO] tweaked toml for crates.io crate libmonitor 0.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate libmonitor 0.1.2 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 crates.io crate libmonitor 0.1.2 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] [stderr] Blocking waiting for file lock on package cache [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] 587e620e79df7355a3a9e406d1753c20032e60b1f7a3602e2550673ea316d973 [INFO] running `Command { std: "docker" "start" "-a" "587e620e79df7355a3a9e406d1753c20032e60b1f7a3602e2550673ea316d973", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "587e620e79df7355a3a9e406d1753c20032e60b1f7a3602e2550673ea316d973", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "587e620e79df7355a3a9e406d1753c20032e60b1f7a3602e2550673ea316d973", kill_on_drop: false }` [INFO] [stdout] 587e620e79df7355a3a9e406d1753c20032e60b1f7a3602e2550673ea316d973 [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] 307fdac1098485c407d817ad9f6d07cabb29f7385b99ea776cc30c13c85be0b5 [INFO] running `Command { std: "docker" "start" "-a" "307fdac1098485c407d817ad9f6d07cabb29f7385b99ea776cc30c13c85be0b5", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.154 [INFO] [stderr] Compiling pkg-config v0.3.30 [INFO] [stderr] Compiling io-lifetimes v1.0.11 [INFO] [stderr] Compiling anyhow v1.0.83 [INFO] [stderr] Compiling thiserror v1.0.60 [INFO] [stderr] Checking bitflags v2.5.0 [INFO] [stderr] Checking log v0.4.21 [INFO] [stderr] Checking nom v7.1.3 [INFO] [stderr] Compiling syn v2.0.63 [INFO] [stderr] Compiling libudev-sys v0.1.4 [INFO] [stderr] Checking nix v0.26.4 [INFO] [stderr] Checking udev v0.8.0 [INFO] [stderr] Checking i2cdev v0.6.0 [INFO] [stderr] Compiling thiserror-impl v1.0.60 [INFO] [stderr] Checking libmonitor v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/mccs/mod.rs:51:53 [INFO] [stdout] | [INFO] [stdout] 51 | fn from_str(s: &str) -> Result { [INFO] [stdout] | _____________________________________________________^ [INFO] [stdout] 52 | | Ok(s.into()) [INFO] [stdout] 53 | | } [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 [INFO] [stdout] --> src/mccs/mod.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | Ok(s.into()) [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/mccs/mod.rs:97:53 [INFO] [stdout] | [INFO] [stdout] 97 | fn from_str(s: &str) -> Result { [INFO] [stdout] | _____________________________________________________^ [INFO] [stdout] 98 | | Ok(s.into()) [INFO] [stdout] 99 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/mccs/mod.rs:98:9 [INFO] [stdout] | [INFO] [stdout] 98 | Ok(s.into()) [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `libmonitor` (lib) 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 [INFO] [stdout] --> src/mccs/mod.rs:51:53 [INFO] [stdout] | [INFO] [stdout] 51 | fn from_str(s: &str) -> Result { [INFO] [stdout] | _____________________________________________________^ [INFO] [stdout] 52 | | Ok(s.into()) [INFO] [stdout] 53 | | } [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 [INFO] [stdout] --> src/mccs/mod.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | Ok(s.into()) [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/mccs/mod.rs:97:53 [INFO] [stdout] | [INFO] [stdout] 97 | fn from_str(s: &str) -> Result { [INFO] [stdout] | _____________________________________________________^ [INFO] [stdout] 98 | | Ok(s.into()) [INFO] [stdout] 99 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/mccs/mod.rs:98:9 [INFO] [stdout] | [INFO] [stdout] 98 | Ok(s.into()) [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `libmonitor` (lib test) due to 4 previous errors [INFO] running `Command { std: "docker" "inspect" "307fdac1098485c407d817ad9f6d07cabb29f7385b99ea776cc30c13c85be0b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "307fdac1098485c407d817ad9f6d07cabb29f7385b99ea776cc30c13c85be0b5", kill_on_drop: false }` [INFO] [stdout] 307fdac1098485c407d817ad9f6d07cabb29f7385b99ea776cc30c13c85be0b5