[INFO] fetching crate darktoken 0.0.6... [INFO] checking darktoken-0.0.6 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] extracting crate darktoken 0.0.6 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate darktoken 0.0.6 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate darktoken 0.0.6 [INFO] finished tweaking crates.io crate darktoken 0.0.6 [INFO] tweaked toml for crates.io crate darktoken 0.0.6 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate crates.io crate darktoken 0.0.6 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded generic-array v0.12.3 [INFO] [stderr] Downloaded byteorder v1.3.4 [INFO] [stderr] Downloaded opaque-debug v0.2.3 [INFO] [stderr] Downloaded byte-tools v0.3.1 [INFO] [stderr] Downloaded typenum v1.11.2 [INFO] [stderr] Downloaded subtle v2.2.2 [INFO] [stderr] Downloaded dirs-sys v0.3.4 [INFO] [stderr] Downloaded quote v1.0.2 [INFO] [stderr] Downloaded arrayvec v0.5.1 [INFO] [stderr] Downloaded vec_map v0.8.1 [INFO] [stderr] Downloaded blake2b_simd v0.5.10 [INFO] [stderr] Downloaded serde v1.0.104 [INFO] [stderr] Downloaded serde_json v1.0.48 [INFO] [stderr] Downloaded ryu v1.0.2 [INFO] [stderr] Downloaded serde_derive v1.0.104 [INFO] [stderr] Downloaded redox_syscall v0.1.56 [INFO] [stderr] Downloaded crossbeam-utils v0.7.0 [INFO] [stderr] Downloaded clap v2.33.0 [INFO] [stderr] Downloaded syn v1.0.14 [INFO] [stderr] Downloaded getrandom v0.1.14 [INFO] [stderr] Downloaded rust-argon2 v0.7.0 [INFO] [stderr] Downloaded redox_users v0.3.4 [INFO] [stderr] Downloaded rand_chacha v0.2.1 [INFO] [stderr] Downloaded ppv-lite86 v0.2.6 [INFO] [stderr] Downloaded itoa v0.4.5 [INFO] [stderr] Downloaded proc-macro2 v1.0.8 [INFO] [stderr] Downloaded unicode-xid v0.2.0 [INFO] [stderr] Downloaded block-padding v0.1.5 [INFO] [stderr] Downloaded hermit-abi v0.1.7 [INFO] [stderr] Downloaded unicode-width v0.1.7 [INFO] [stderr] Downloaded autocfg v0.1.7 [INFO] [stderr] Downloaded either v1.5.3 [INFO] [stderr] Downloaded c2-chacha v0.2.3 [INFO] [stderr] Downloaded libc v0.2.66 [INFO] [stderr] Downloaded digest v0.8.1 [INFO] [stderr] Downloaded bls12_381 v0.1.1 [INFO] [stderr] Downloaded fake-simd v0.1.2 [INFO] [stderr] Downloaded block-buffer v0.7.3 [INFO] [stderr] Downloaded sha2 v0.8.1 [INFO] [stderr] Downloaded winapi v0.3.8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 76e3e128bfe4a760811a6b6eab63f52fc1681063f7a8b0210c8eff400992a72b [INFO] running `Command { std: "docker" "start" "-a" "76e3e128bfe4a760811a6b6eab63f52fc1681063f7a8b0210c8eff400992a72b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "76e3e128bfe4a760811a6b6eab63f52fc1681063f7a8b0210c8eff400992a72b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "76e3e128bfe4a760811a6b6eab63f52fc1681063f7a8b0210c8eff400992a72b", kill_on_drop: false }` [INFO] [stdout] 76e3e128bfe4a760811a6b6eab63f52fc1681063f7a8b0210c8eff400992a72b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2d86531076a7981b4043ee77bd288dfbf516f1d0ff2db9bd106e317c250584d6 [INFO] running `Command { std: "docker" "start" "-a" "2d86531076a7981b4043ee77bd288dfbf516f1d0ff2db9bd106e317c250584d6", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling proc-macro2 v1.0.8 [INFO] [stderr] Compiling typenum v1.11.2 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.14 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking byte-tools v0.3.1 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling serde v1.0.104 [INFO] [stderr] Compiling ryu v1.0.2 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking subtle v2.2.2 [INFO] [stderr] Checking opaque-debug v0.2.3 [INFO] [stderr] Checking fake-simd v0.1.2 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Checking block-padding v0.1.5 [INFO] [stderr] Checking bls12_381 v0.1.1 [INFO] [stderr] Checking itoa v0.4.5 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking hex v0.4.2 [INFO] [stderr] Checking c2-chacha v0.2.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking dirs-sys v0.3.4 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking dirs v2.0.2 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking generic-array v0.12.3 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Checking sha2 v0.8.1 [INFO] [stderr] Checking darktoken v0.0.6 (/opt/rustwide/workdir) [INFO] [stderr] Compiling serde_derive v1.0.104 [INFO] [stderr] Checking serde_json v1.0.48 [INFO] [stdout] warning: unused imports: `App`, `Arg`, and `SubCommand` [INFO] [stdout] --> examples/darktoken.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | use clap::{App, Arg, SubCommand}; [INFO] [stdout] | ^^^ ^^^ ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `from_slice` is never used [INFO] [stdout] --> examples/test.rs:13:4 [INFO] [stdout] | [INFO] [stdout] 13 | fn from_slice(bytes: &[u8]) -> [u8; 32] { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `FromString` is never used [INFO] [stdout] --> examples/test.rs:20:7 [INFO] [stdout] | [INFO] [stdout] 20 | trait FromString { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `from_string` is never used [INFO] [stdout] --> examples/test.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 31 | impl Foo { [INFO] [stdout] | -------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 39 | fn from_string(&self, serialized: &str) -> Self { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> examples/darktoken.rs:951:5 [INFO] [stdout] | [INFO] [stdout] 949 | return; [INFO] [stdout] | ------ any code following this expression is unreachable [INFO] [stdout] 950 | [INFO] [stdout] 951 | / let settings = CoconutSettings { [INFO] [stdout] 952 | | attributes: 2, [INFO] [stdout] 953 | | [INFO] [stdout] 954 | | threshold: 5, [INFO] [stdout] 955 | | total: 7, [INFO] [stdout] 956 | | }; [INFO] [stdout] | |______^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sign_request` [INFO] [stdout] --> examples/darktoken.rs:116:13 [INFO] [stdout] | [INFO] [stdout] 116 | let sign_request = self.coconut.make_blind_sign_request( [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sign_request` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `token1` [INFO] [stdout] --> examples/darktoken.rs:986:13 [INFO] [stdout] | [INFO] [stdout] 986 | Ok((token1, token2)) => println!("split worked."), [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_token1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `token2` [INFO] [stdout] --> examples/darktoken.rs:986:21 [INFO] [stdout] | [INFO] [stdout] 986 | Ok((token1, token2)) => println!("split worked."), [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_token2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `deposit_new` is never used [INFO] [stdout] --> examples/darktoken.rs:108:8 [INFO] [stdout] | [INFO] [stdout] 96 | impl<'a> Wallet<'a> { [INFO] [stdout] | ------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 108 | fn deposit_new(&self, value: u64) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `CommitProofBuilder` is never constructed [INFO] [stdout] --> examples/darktoken.rs:374:8 [INFO] [stdout] | [INFO] [stdout] 374 | struct CommitProofBuilder<'a, R: darktoken::RngInstance> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `CommitProofCommitments` is never constructed [INFO] [stdout] --> examples/darktoken.rs:385:8 [INFO] [stdout] | [INFO] [stdout] 385 | struct CommitProofCommitments<'a, R: darktoken::RngInstance> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `CommitProof` is never constructed [INFO] [stdout] --> examples/darktoken.rs:392:8 [INFO] [stdout] | [INFO] [stdout] 392 | struct CommitProof { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `commitments`, and `finish` are never used [INFO] [stdout] --> examples/darktoken.rs:398:8 [INFO] [stdout] | [INFO] [stdout] 397 | impl<'a, R: darktoken::RngInstance> CommitProofBuilder<'a, R> { [INFO] [stdout] | ------------------------------------------------------------- associated items in this implementation [INFO] [stdout] 398 | fn new( [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 412 | fn commitments(&self) -> Box { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 422 | fn finish(&self, challenge: &bls::Scalar) -> CommitProof { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `commitments` is never used [INFO] [stdout] --> examples/darktoken.rs:441:8 [INFO] [stdout] | [INFO] [stdout] 440 | impl CommitProof { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] 441 | fn commitments<'a, R: darktoken::RngInstance>( [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> examples/darktoken.rs:779:9 [INFO] [stdout] | [INFO] [stdout] 779 | fs::remove_file(&token_path); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 779 | let _ = fs::remove_file(&token_path); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> examples/darktoken.rs:807:13 [INFO] [stdout] | [INFO] [stdout] 807 | fs::remove_file(&token_path); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 807 | let _ = fs::remove_file(&token_path); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.30s [INFO] running `Command { std: "docker" "inspect" "2d86531076a7981b4043ee77bd288dfbf516f1d0ff2db9bd106e317c250584d6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2d86531076a7981b4043ee77bd288dfbf516f1d0ff2db9bd106e317c250584d6", kill_on_drop: false }` [INFO] [stdout] 2d86531076a7981b4043ee77bd288dfbf516f1d0ff2db9bd106e317c250584d6