[INFO] fetching crate disaronno 0.1.5...
[INFO] checking disaronno-0.1.5 against try#51de2e90f91fdec6cf64ff542a4e15b9c177a797 for pr-147294
[INFO] extracting crate disaronno 0.1.5 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate disaronno 0.1.5
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate disaronno 0.1.5
[INFO] tweaked toml for crates.io crate disaronno 0.1.5 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate disaronno 0.1.5 on toolchain 51de2e90f91fdec6cf64ff542a4e15b9c177a797
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 469 packages to latest compatible versions
[INFO] [stderr]       Adding aes-gcm v0.9.2 (available: v0.9.4)
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[INFO] [stderr]       Adding libp2p v0.45.1 (available: v0.56.0)
[INFO] [stderr]       Adding pretty_env_logger v0.4.0 (available: v0.5.0)
[INFO] [stderr]       Adding proc-macro-crate v1.1.3 (available: v1.3.1)
[INFO] [stderr]       Adding snow v0.9.3 (available: v0.9.6)
[INFO] [stderr]       Adding universal-hash v0.4.0 (available: v0.4.1)
[INFO] [stderr]       Adding zeroize v1.3.0 (available: v1.8.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 319f064681f947b9c415b92eb6d05c09bc7ae90b31194c03a66e7590f2bb3af9
[INFO] running `Command { std: "docker" "start" "-a" "319f064681f947b9c415b92eb6d05c09bc7ae90b31194c03a66e7590f2bb3af9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "319f064681f947b9c415b92eb6d05c09bc7ae90b31194c03a66e7590f2bb3af9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "319f064681f947b9c415b92eb6d05c09bc7ae90b31194c03a66e7590f2bb3af9", kill_on_drop: false }`
[INFO] [stdout] 319f064681f947b9c415b92eb6d05c09bc7ae90b31194c03a66e7590f2bb3af9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c72dba73c381e3fa0632bbb000d2c03907ff35bcca3a46b79c7ff287fbb214d
[INFO] running `Command { std: "docker" "start" "-a" "1c72dba73c381e3fa0632bbb000d2c03907ff35bcca3a46b79c7ff287fbb214d", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `std::hash::Hash`
[INFO] [stdout]  --> src/chains/blockchain.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::hash::Hash;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]  --> src/chains/blockchain.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `LocalTime`
[INFO] [stdout]   --> src/chains/mod.rs:22:24
[INFO] [stdout]    |
[INFO] [stdout] 22 |     use crate::types::{LocalTime, TimeStamp};
[INFO] [stdout]    |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::chains::types::*`
[INFO] [stdout]   --> src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     use crate::chains::types::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::hash::Hash`
[INFO] [stdout]  --> src/chains/blockchain.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::hash::Hash;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]  --> src/chains/blockchain.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `LocalTime`
[INFO] [stdout]   --> src/chains/mod.rs:22:24
[INFO] [stdout]    |
[INFO] [stdout] 22 |     use crate::types::{LocalTime, TimeStamp};
[INFO] [stdout]    |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::chains::types::*`
[INFO] [stdout]   --> src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     use crate::chains::types::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nonce`
[INFO] [stdout]   --> src/chains/mod.rs:51:53
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn mine_block(id: BlockId, data: BlockData, nonce: BlockNonce, previous: BlockHash, timestamp: TimeStamp) -> (u64, String) {
[INFO] [stdout]    |                                                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_nonce`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `blocks` is never read
[INFO] [stdout]   --> src/chains/blockchain.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Blockchain {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 21 |     blocks: Vec<Block>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Blockchain` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nonce`
[INFO] [stdout]   --> src/chains/mod.rs:51:53
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn mine_block(id: BlockId, data: BlockData, nonce: BlockNonce, previous: BlockHash, timestamp: TimeStamp) -> (u64, String) {
[INFO] [stdout]    |                                                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_nonce`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `blocks` is never read
[INFO] [stdout]   --> src/chains/blockchain.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Blockchain {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 21 |     blocks: Vec<Block>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Blockchain` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 53.18s
[INFO] running `Command { std: "docker" "inspect" "1c72dba73c381e3fa0632bbb000d2c03907ff35bcca3a46b79c7ff287fbb214d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c72dba73c381e3fa0632bbb000d2c03907ff35bcca3a46b79c7ff287fbb214d", kill_on_drop: false }`
[INFO] [stdout] 1c72dba73c381e3fa0632bbb000d2c03907ff35bcca3a46b79c7ff287fbb214d