[INFO] fetching crate caspaxos-kv 0.2.2... [INFO] checking caspaxos-kv-0.2.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate caspaxos-kv 0.2.2 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate caspaxos-kv 0.2.2 [INFO] finished tweaking crates.io crate caspaxos-kv 0.2.2 [INFO] tweaked toml for crates.io crate caspaxos-kv 0.2.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate caspaxos-kv 0.2.2 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 caspaxos-kv 0.2.2 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ddb8c47989aa3ad962df52af279200587487e4036d10f006ffd6fbd24de13690 [INFO] running `Command { std: "docker" "start" "-a" "ddb8c47989aa3ad962df52af279200587487e4036d10f006ffd6fbd24de13690", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ddb8c47989aa3ad962df52af279200587487e4036d10f006ffd6fbd24de13690", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ddb8c47989aa3ad962df52af279200587487e4036d10f006ffd6fbd24de13690", kill_on_drop: false }` [INFO] [stdout] ddb8c47989aa3ad962df52af279200587487e4036d10f006ffd6fbd24de13690 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 4a9c502cb1dc65478e94db4ecc50524784dc296644468fdcea36f55bbd7e37db [INFO] running `Command { std: "docker" "start" "-a" "4a9c502cb1dc65478e94db4ecc50524784dc296644468fdcea36f55bbd7e37db", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Checking futures-core v0.3.7 [INFO] [stderr] Checking futures-io v0.3.7 [INFO] [stderr] Checking pin-project-lite v0.1.11 [INFO] [stderr] Checking once_cell v1.4.1 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Checking arc-swap v0.4.7 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Checking instant v0.1.8 [INFO] [stderr] Checking smallvec v1.4.2 [INFO] [stderr] Checking aho-corasick v0.7.14 [INFO] [stderr] Checking lock_api v0.4.1 [INFO] [stderr] Checking async-lock v2.3.0 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking termcolor v1.1.0 [INFO] [stderr] Checking async-channel v1.5.1 [INFO] [stderr] Checking futures-lite v1.11.2 [INFO] [stderr] Checking regex-syntax v0.6.20 [INFO] [stderr] Checking addr2line v0.13.0 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking object v0.21.1 [INFO] [stderr] Checking futures-channel v0.3.7 [INFO] [stderr] Checking historian v4.0.3 [INFO] [stderr] Checking fxhash v0.2.1 [INFO] [stderr] Checking getrandom v0.1.15 [INFO] [stderr] Checking nb-connect v1.0.2 [INFO] [stderr] Checking polling v2.0.2 [INFO] [stderr] Checking signal-hook-registry v1.2.1 [INFO] [stderr] Checking parking_lot_core v0.8.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking fs2 v0.4.3 [INFO] [stderr] Checking blocking v1.0.2 [INFO] [stderr] Checking async-executor v1.3.0 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking async-io v1.1.10 [INFO] [stderr] Checking parking_lot v0.11.0 [INFO] [stderr] Checking signal-hook v0.1.16 [INFO] [stderr] Checking async-fs v1.5.0 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking sled v0.34.4 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking async-process v1.0.1 [INFO] [stderr] Checking async-net v1.5.0 [INFO] [stderr] Checking smol v1.2.4 [INFO] [stderr] Checking regex v1.4.1 [INFO] [stderr] Checking backtrace v0.3.53 [INFO] [stderr] Checking color-backtrace v0.4.2 [INFO] [stderr] Checking uuid v0.8.1 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking quickcheck v0.9.2 [INFO] [stderr] Checking caspaxos-kv v0.2.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary `unsafe` block [INFO] [stdout] --> src/udp_net.rs:78:13 [INFO] [stdout] | [INFO] [stdout] 78 | unsafe { [INFO] [stdout] | ^^^^^^ unnecessary `unsafe` block [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/simulator.rs:114:10 [INFO] [stdout] | [INFO] [stdout] 114 | Loss(OneshotSender), [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `LossyDelivery` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 114 - Loss(OneshotSender), [INFO] [stdout] 114 + Loss(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/serialization.rs:24:31 [INFO] [stdout] | [INFO] [stdout] 24 | let mut buf = vec![0; usize::try_from(sz).unwrap()]; [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 `caspaxos-kv` (lib) due to 1 previous error; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unnecessary `unsafe` block [INFO] [stdout] --> src/udp_net.rs:78:13 [INFO] [stdout] | [INFO] [stdout] 78 | unsafe { [INFO] [stdout] | ^^^^^^ unnecessary `unsafe` block [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/simulator.rs:114:10 [INFO] [stdout] | [INFO] [stdout] 114 | Loss(OneshotSender), [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `LossyDelivery` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 114 - Loss(OneshotSender), [INFO] [stdout] 114 + Loss(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/serialization.rs:24:31 [INFO] [stdout] | [INFO] [stdout] 24 | let mut buf = vec![0; usize::try_from(sz).unwrap()]; [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 `caspaxos-kv` (lib test) due to 1 previous error; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "4a9c502cb1dc65478e94db4ecc50524784dc296644468fdcea36f55bbd7e37db", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a9c502cb1dc65478e94db4ecc50524784dc296644468fdcea36f55bbd7e37db", kill_on_drop: false }` [INFO] [stdout] 4a9c502cb1dc65478e94db4ecc50524784dc296644468fdcea36f55bbd7e37db