[INFO] fetching crate mpvss-rs 0.2.7... [INFO] checking mpvss-rs-0.2.7 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate mpvss-rs 0.2.7 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate mpvss-rs 0.2.7 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate mpvss-rs 0.2.7 [INFO] finished tweaking crates.io crate mpvss-rs 0.2.7 [INFO] tweaked toml for crates.io crate mpvss-rs 0.2.7 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate crates.io crate mpvss-rs 0.2.7 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded crossbeam-epoch v0.9.13 [INFO] [stderr] Downloaded num-primes v0.1.2 [INFO] [stderr] Downloaded crossbeam-utils v0.8.14 [INFO] [stderr] Downloaded rayon-core v1.10.1 [INFO] [stderr] Downloaded rayon v1.6.0 [INFO] [stderr] Downloaded libc v0.2.138 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ffdeb9797f66b9c33b402da46c767762cf4504b5c384ad7bcf87d603c02632cf [INFO] running `Command { std: "docker" "start" "-a" "ffdeb9797f66b9c33b402da46c767762cf4504b5c384ad7bcf87d603c02632cf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ffdeb9797f66b9c33b402da46c767762cf4504b5c384ad7bcf87d603c02632cf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ffdeb9797f66b9c33b402da46c767762cf4504b5c384ad7bcf87d603c02632cf", kill_on_drop: false }` [INFO] [stdout] ffdeb9797f66b9c33b402da46c767762cf4504b5c384ad7bcf87d603c02632cf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f8bfeb286ec21ee61a803421b8eab8052d71fcb1ab862818284986b06db193dd [INFO] running `Command { std: "docker" "start" "-a" "f8bfeb286ec21ee61a803421b8eab8052d71fcb1ab862818284986b06db193dd", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling libc v0.2.138 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling crossbeam-utils v0.8.14 [INFO] [stderr] Compiling memoffset v0.7.1 [INFO] [stderr] Compiling typenum v1.15.0 [INFO] [stderr] Compiling crossbeam-epoch v0.9.13 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling num-iter v0.1.43 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling rayon-core v1.10.1 [INFO] [stderr] Checking cpufeatures v0.2.5 [INFO] [stderr] Compiling generic-array v0.14.6 [INFO] [stderr] Checking either v1.8.0 [INFO] [stderr] Checking opaque-debug v0.3.0 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking crossbeam-channel v0.5.6 [INFO] [stderr] Checking crossbeam-deque v0.8.2 [INFO] [stderr] Checking num_cpus v1.14.0 [INFO] [stderr] Checking rand v0.5.6 [INFO] [stderr] Checking num v0.2.1 [INFO] [stderr] Checking rayon v1.6.0 [INFO] [stderr] Checking digest v0.9.0 [INFO] [stderr] Checking block-buffer v0.9.0 [INFO] [stderr] Checking sha2 v0.9.9 [INFO] [stderr] Checking num-primes v0.1.2 [INFO] [stderr] Checking mpvss-rs v0.2.7 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Option` is imported redundantly [INFO] [stdout] --> src/dleq.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::option::Option; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Option` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Option` is imported redundantly [INFO] [stdout] --> src/participant.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | use std::option::Option; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Option` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Vec` is imported redundantly [INFO] [stdout] --> src/polynomial.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::vec::Vec; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Vec` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Vec` is imported redundantly [INFO] [stdout] --> src/sharebox.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::vec::Vec; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Vec` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Clone` is imported redundantly [INFO] [stdout] --> src/util.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::clone::Clone; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Clone` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Option` is imported redundantly [INFO] [stdout] --> src/dleq.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::option::Option; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Option` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Option` is imported redundantly [INFO] [stdout] --> src/participant.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | use std::option::Option; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Option` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Vec` is imported redundantly [INFO] [stdout] --> src/polynomial.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::vec::Vec; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Vec` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Vec` is imported redundantly [INFO] [stdout] --> src/sharebox.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::vec::Vec; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Vec` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Clone` is imported redundantly [INFO] [stdout] --> src/util.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::clone::Clone; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Clone` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `a1` and `a2` are never read [INFO] [stdout] --> src/dleq.rs:102:9 [INFO] [stdout] | [INFO] [stdout] 92 | pub struct DLEQ { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 102 | pub a1: BigInt, [INFO] [stdout] | ^^ [INFO] [stdout] 103 | pub a2: BigInt, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `DLEQ` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `a1` and `a2` are never read [INFO] [stdout] --> src/dleq.rs:102:9 [INFO] [stdout] | [INFO] [stdout] 92 | pub struct DLEQ { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 102 | pub a1: BigInt, [INFO] [stdout] | ^^ [INFO] [stdout] 103 | pub a2: BigInt, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `DLEQ` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/dleq.rs:218:9 [INFO] [stdout] | [INFO] [stdout] 218 | drop(length); [INFO] [stdout] | ^^^^^------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `i64` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/mpvss.rs:349:9 [INFO] [stdout] | [INFO] [stdout] 349 | drop(length); [INFO] [stdout] | ^^^^^------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `i64` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.88s [INFO] running `Command { std: "docker" "inspect" "f8bfeb286ec21ee61a803421b8eab8052d71fcb1ab862818284986b06db193dd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f8bfeb286ec21ee61a803421b8eab8052d71fcb1ab862818284986b06db193dd", kill_on_drop: false }` [INFO] [stdout] f8bfeb286ec21ee61a803421b8eab8052d71fcb1ab862818284986b06db193dd