[INFO] fetching crate pixel-sig 0.4.0...
[INFO] checking pixel-sig-0.4.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate pixel-sig 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate pixel-sig 0.4.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pixel-sig 0.4.0
[INFO] finished tweaking crates.io crate pixel-sig 0.4.0
[INFO] tweaked toml for crates.io crate pixel-sig 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 56 packages
[INFO] [stderr]       Adding amcl_wrapper v0.3.5 (latest: v0.4.0)
[INFO] [stderr]       Adding block-buffer v0.7.3 (latest: v0.10.4)
[INFO] [stderr]       Adding block-padding v0.1.5 (latest: v0.3.3)
[INFO] [stderr]       Adding digest v0.8.1 (latest: v0.10.7)
[INFO] [stderr]       Adding generic-array v0.12.4 (latest: v1.0.0)
[INFO] [stderr]       Adding getrandom v0.1.16 (latest: v0.2.12)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding opaque-debug v0.2.3 (latest: v0.3.1)
[INFO] [stderr]       Adding rand v0.7.3 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.2.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.2.0 (latest: v0.3.2)
[INFO] [stderr]       Adding sha3 v0.8.2 (latest: v0.10.8)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding synstructure v0.12.6 (latest: v0.13.1)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded secret_sharing v0.2.0
[INFO] [stderr]   Downloaded amcl_wrapper v0.3.5
[INFO] [stderr]   Downloaded miracl_amcl v3.2.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e001a24a993965171a66ae4888d275c915a8649aa2419c1ad4cdbe34a474fe5
[INFO] running `Command { std: "docker" "start" "-a" "7e001a24a993965171a66ae4888d275c915a8649aa2419c1ad4cdbe34a474fe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e001a24a993965171a66ae4888d275c915a8649aa2419c1ad4cdbe34a474fe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e001a24a993965171a66ae4888d275c915a8649aa2419c1ad4cdbe34a474fe5", kill_on_drop: false }`
[INFO] [stdout] 7e001a24a993965171a66ae4888d275c915a8649aa2419c1ad4cdbe34a474fe5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ddd6153ef17831f9856d3e67052e91f279be192f3ac1c0295c9ee66ad8e4b5f6
[INFO] running `Command { std: "docker" "start" "-a" "ddd6153ef17831f9856d3e67052e91f279be192f3ac1c0295c9ee66ad8e4b5f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking miracl_amcl v3.2.5
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking subtle-encoding v0.5.1
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking amcl_wrapper v0.3.5
[INFO] [stderr]     Checking secret_sharing v0.2.0
[INFO] [stderr]     Checking pixel-sig v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `failure::Error`
[INFO] [stdout]   --> src/errors.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use failure::Error;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/keys.rs:243:40
[INFO] [stdout]     |
[INFO] [stdout] 243 |             sk_right_prime_prime[0] += (&path_factor * &r);
[INFO] [stdout]     |                                        ^                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 243 -             sk_right_prime_prime[0] += (&path_factor * &r);
[INFO] [stdout] 243 +             sk_right_prime_prime[0] += &path_factor * &r;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/keys.rs:393:14
[INFO] [stdout]     |
[INFO] [stdout] 393 |         d += (&path_factor * &r);
[INFO] [stdout]     |              ^                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 393 -         d += (&path_factor * &r);
[INFO] [stdout] 393 +         d += &path_factor * &r;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `from_node_num_to_path`
[INFO] [stdout]  --> src/signature.rs:9:52
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::util::{calculate_path_factor_using_t_l, from_node_num_to_path, GeneratorSet};
[INFO] [stdout]   |                                                    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `amcl_wrapper::field_elem::FieldElement`
[INFO] [stdout]  --> src/util.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use amcl_wrapper::field_elem::FieldElement;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `failure::Error`
[INFO] [stdout]   --> src/errors.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use failure::Error;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/keys.rs:243:40
[INFO] [stdout]     |
[INFO] [stdout] 243 |             sk_right_prime_prime[0] += (&path_factor * &r);
[INFO] [stdout]     |                                        ^                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 243 -             sk_right_prime_prime[0] += (&path_factor * &r);
[INFO] [stdout] 243 +             sk_right_prime_prime[0] += &path_factor * &r;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/keys.rs:393:14
[INFO] [stdout]     |
[INFO] [stdout] 393 |         d += (&path_factor * &r);
[INFO] [stdout]     |              ^                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 393 -         d += (&path_factor * &r);
[INFO] [stdout] 393 +         d += &path_factor * &r;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]    --> src/keys.rs:486:21
[INFO] [stdout]     |
[INFO] [stdout] 486 |     use std::time::{Duration, Instant};
[INFO] [stdout]     |                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `from_node_num_to_path`
[INFO] [stdout]  --> src/signature.rs:9:52
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::util::{calculate_path_factor_using_t_l, from_node_num_to_path, GeneratorSet};
[INFO] [stdout]   |                                                    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]    --> src/signature.rs:217:21
[INFO] [stdout]     |
[INFO] [stdout] 217 |     use std::time::{Duration, Instant};
[INFO] [stdout]     |                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `amcl_wrapper::field_elem::FieldElement`
[INFO] [stdout]  --> src/util.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use amcl_wrapper::field_elem::FieldElement;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::rngs::ThreadRng`
[INFO] [stdout]    --> src/threshold_sig.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     use rand::rngs::ThreadRng;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Signature` is imported redundantly
[INFO] [stdout]    --> src/threshold_sig.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |     use super::*;
[INFO] [stdout]     |         -------- the item `Signature` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 137 |     use crate::signature::Signature;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `GroupElementVector`
[INFO] [stdout]  --> src/keys.rs:5:46
[INFO] [stdout]   |
[INFO] [stdout] 5 | use amcl_wrapper::group_elem::{GroupElement, GroupElementVector};
[INFO] [stdout]   |                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `GroupElement`
[INFO] [stdout]  --> src/threshold_sig.rs:5:32
[INFO] [stdout]   |
[INFO] [stdout] 5 | use amcl_wrapper::group_elem::{GroupElement, GroupElementVector};
[INFO] [stdout]   |                                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `T` is never read
[INFO] [stdout]    --> src/keys.rs:177:5
[INFO] [stdout]     |
[INFO] [stdout] 175 | pub struct SigkeyManager {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] 176 |     l: u8,
[INFO] [stdout] 177 |     T: u128,
[INFO] [stdout]     |     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PrefixPoP` should have an upper case name
[INFO] [stdout]   --> src/keys.rs:93:7
[INFO] [stdout]    |
[INFO] [stdout] 93 | const PrefixPoP: &[u8] = b"PoP";
[INFO] [stdout]    |       ^^^^^^^^^ help: convert the identifier to upper case: `PREFIX_PO_P`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `GroupElementVector`
[INFO] [stdout]  --> src/keys.rs:5:46
[INFO] [stdout]   |
[INFO] [stdout] 5 | use amcl_wrapper::group_elem::{GroupElement, GroupElementVector};
[INFO] [stdout]   |                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `GroupElement`
[INFO] [stdout]  --> src/threshold_sig.rs:5:32
[INFO] [stdout]   |
[INFO] [stdout] 5 | use amcl_wrapper::group_elem::{GroupElement, GroupElementVector};
[INFO] [stdout]   |                                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `set1`
[INFO] [stdout]    --> src/keys.rs:531:20
[INFO] [stdout]     |
[INFO] [stdout] 531 |         let (_, _, set1, _) = setup::<ThreadRng>(T1, "test_pixel", &mut rng, &mut db1).unwrap();
[INFO] [stdout]     |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_set1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `set2`
[INFO] [stdout]    --> src/keys.rs:538:20
[INFO] [stdout]     |
[INFO] [stdout] 538 |         let (_, _, set2, _) = setup::<ThreadRng>(T2, "test_pixel", &mut rng, &mut db2).unwrap();
[INFO] [stdout]     |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_set2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]    --> src/keys.rs:740:13
[INFO] [stdout]     |
[INFO] [stdout] 740 |         let l = calculate_l(T).unwrap();
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `t` is never read
[INFO] [stdout]    --> src/keys.rs:742:17
[INFO] [stdout]     |
[INFO] [stdout] 742 |         let mut t = 1u128;
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `t` is never read
[INFO] [stdout]    --> src/keys.rs:793:17
[INFO] [stdout]     |
[INFO] [stdout] 793 |         let mut t = 1u128;
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `set`
[INFO] [stdout]    --> src/signature.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 220 |         set: &SigkeyManager,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_set`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `t` is never read
[INFO] [stdout]    --> src/signature.rs:417:17
[INFO] [stdout]     |
[INFO] [stdout] 417 |         let mut t = 1u128;
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `t` is never read
[INFO] [stdout]    --> src/signature.rs:470:17
[INFO] [stdout]     |
[INFO] [stdout] 470 |         let mut t = 1u128;
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `t` is never read
[INFO] [stdout]    --> src/signature.rs:490:17
[INFO] [stdout]     |
[INFO] [stdout] 490 |         let mut t = 1u128;
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `t` is never read
[INFO] [stdout]    --> src/signature.rs:528:17
[INFO] [stdout]     |
[INFO] [stdout] 528 |         let mut t = 1u128;
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `secret_x`
[INFO] [stdout]    --> src/threshold_sig.rs:240:14
[INFO] [stdout]     |
[INFO] [stdout] 240 |         let (secret_x, signers) = trusted_party_SSS_keygen(threshold, total, &mut rng, &generators.0, &generators.1).unwrap();
[INFO] [stdout]     |              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_secret_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `T` is never read
[INFO] [stdout]    --> src/keys.rs:177:5
[INFO] [stdout]     |
[INFO] [stdout] 175 | pub struct SigkeyManager {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] 176 |     l: u8,
[INFO] [stdout] 177 |     T: u128,
[INFO] [stdout]     |     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PrefixPoP` should have an upper case name
[INFO] [stdout]   --> src/keys.rs:93:7
[INFO] [stdout]    |
[INFO] [stdout] 93 | const PrefixPoP: &[u8] = b"PoP";
[INFO] [stdout]    |       ^^^^^^^^^ help: convert the identifier to upper case: `PREFIX_PO_P`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.18s
[INFO] running `Command { std: "docker" "inspect" "ddd6153ef17831f9856d3e67052e91f279be192f3ac1c0295c9ee66ad8e4b5f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddd6153ef17831f9856d3e67052e91f279be192f3ac1c0295c9ee66ad8e4b5f6", kill_on_drop: false }`
[INFO] [stdout] ddd6153ef17831f9856d3e67052e91f279be192f3ac1c0295c9ee66ad8e4b5f6
[INFO] checking pixel-sig-0.4.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate pixel-sig 0.4.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate pixel-sig 0.4.0 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pixel-sig 0.4.0
[INFO] finished tweaking crates.io crate pixel-sig 0.4.0
[INFO] tweaked toml for crates.io crate pixel-sig 0.4.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f562c1ab2c6095d6557175693eea38a089f1609048f2e812118805b10035042e
[INFO] running `Command { std: "docker" "start" "-a" "f562c1ab2c6095d6557175693eea38a089f1609048f2e812118805b10035042e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f562c1ab2c6095d6557175693eea38a089f1609048f2e812118805b10035042e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f562c1ab2c6095d6557175693eea38a089f1609048f2e812118805b10035042e", kill_on_drop: false }`
[INFO] [stdout] f562c1ab2c6095d6557175693eea38a089f1609048f2e812118805b10035042e
[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" "-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c37720fe3faaaea0162299a2794b27a222e3ea990a6bd3564e7a567eae778e4
[INFO] running `Command { std: "docker" "start" "-a" "1c37720fe3faaaea0162299a2794b27a222e3ea990a6bd3564e7a567eae778e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/miniz_oxide-0.7.2/src/inflate/core.rs:1196:9
[INFO] [stdout]      |
[INFO] [stdout] 1196 | /         match state {
[INFO] [stdout] 1197 | |             Start => generate_state!(state, 'state_machine, {
[INFO] [stdout] 1198 | |                 l.bit_buf = 0;
[INFO] [stdout] 1199 | |                 l.num_bits = 0;
[INFO] [stdout] ...    |
[INFO] [stdout] 1741 | |             _ => break TINFLStatus::Failed,
[INFO] [stdout] 1742 | |         };
[INFO] [stdout]      | |_________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `miniz_oxide` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-utils-0.8.19/src/sync/parker.rs:370:25
[INFO] [stdout]     |
[INFO] [stdout] 370 | /                         match self.state.swap(EMPTY, SeqCst) {
[INFO] [stdout] 371 | |                             NOTIFIED | PARKED => return,
[INFO] [stdout] 372 | |                             n => panic!("inconsistent park_timeout state: {}", n),
[INFO] [stdout] 373 | |                         };
[INFO] [stdout]     | |_________________________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crossbeam-utils` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "1c37720fe3faaaea0162299a2794b27a222e3ea990a6bd3564e7a567eae778e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c37720fe3faaaea0162299a2794b27a222e3ea990a6bd3564e7a567eae778e4", kill_on_drop: false }`
[INFO] [stdout] 1c37720fe3faaaea0162299a2794b27a222e3ea990a6bd3564e7a567eae778e4