[INFO] fetching crate mmr-crypto-primitives 0.2.1...
[INFO] testing mmr-crypto-primitives-0.2.1 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate mmr-crypto-primitives 0.2.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate mmr-crypto-primitives 0.2.1
[INFO] finished tweaking crates.io crate mmr-crypto-primitives 0.2.1
[INFO] tweaked toml for crates.io crate mmr-crypto-primitives 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mmr-crypto-primitives 0.2.1 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 82 packages to latest compatible versions
[INFO] [stderr]       Adding ark-bls12-377 v0.3.0 (available: v0.5.0)
[INFO] [stderr]       Adding ark-ec v0.3.0 (available: v0.5.0)
[INFO] [stderr]       Adding ark-ed-on-bls12-381 v0.3.0 (available: v0.5.0)
[INFO] [stderr]       Adding ark-ff v0.3.0 (available: v0.5.0)
[INFO] [stderr]       Adding ark-mnt4-298 v0.3.0 (available: v0.5.0)
[INFO] [stderr]       Adding ark-mnt6-298 v0.3.0 (available: v0.5.0)
[INFO] [stderr]       Adding ark-r1cs-std v0.3.1 (available: v0.5.0)
[INFO] [stderr]       Adding ark-relations v0.3.0 (available: v0.5.1)
[INFO] [stderr]       Adding ark-serialize v0.3.0 (available: v0.5.0)
[INFO] [stderr]       Adding ark-snark v0.3.0 (available: v0.5.1)
[INFO] [stderr]       Adding ark-std v0.3.0 (available: v0.5.0)
[INFO] [stderr]       Adding blake2 v0.9.2 (available: v0.10.6)
[INFO] [stderr]       Adding digest v0.9.0 (available: v0.10.7)
[INFO] [stderr]       Adding sha2 v0.9.9 (available: v0.10.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba7dc6ebe6295133b1973bc07957279739120d5fbd3384e61293eba40169a36b
[INFO] running `Command { std: "docker" "start" "-a" "ba7dc6ebe6295133b1973bc07957279739120d5fbd3384e61293eba40169a36b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba7dc6ebe6295133b1973bc07957279739120d5fbd3384e61293eba40169a36b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba7dc6ebe6295133b1973bc07957279739120d5fbd3384e61293eba40169a36b", kill_on_drop: false }`
[INFO] [stdout] ba7dc6ebe6295133b1973bc07957279739120d5fbd3384e61293eba40169a36b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0449f992b5cd1088207fb272f208341e97ce2ca2fd6789e8cbc4ca51b7ab823f
[INFO] running `Command { std: "docker" "start" "-a" "0449f992b5cd1088207fb272f208341e97ce2ca2fd6789e8cbc4ca51b7ab823f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling tracing-subscriber v0.2.25
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling blake2 v0.9.2
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling ark-std v0.3.0
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling ark-serialize-derive v0.3.0
[INFO] [stderr]    Compiling ark-ff-macros v0.3.0
[INFO] [stderr]    Compiling ark-ff-asm v0.3.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling ark-serialize v0.3.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling pest v2.8.1
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling semver-parser v0.10.3
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling ark-ff v0.3.0
[INFO] [stderr]    Compiling ark-ec v0.3.0
[INFO] [stderr]    Compiling ark-relations v0.3.0
[INFO] [stderr]    Compiling ark-snark v0.3.0
[INFO] [stderr]    Compiling ark-sponge v0.3.0
[INFO] [stderr]    Compiling mmr-crypto-primitives v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: associated items `new` and `clone` are never used
[INFO] [stdout]    --> src/mmr/mmr_store.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub trait MMRStore<Elem>: Clone + Sized {
[INFO] [stdout]     |           -------- associated items in this trait
[INFO] [stdout] 113 |     fn new() -> Result<Self> where Self: Sized;
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |     fn clone(&self) -> Result<Self> where Self: Sized;
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:3:5
[INFO] [stdout]     |
[INFO] [stdout]   3 |     unused,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     = note: `#[deny(dead_code)]` implied by `#[deny(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mmr-crypto-primitives` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0449f992b5cd1088207fb272f208341e97ce2ca2fd6789e8cbc4ca51b7ab823f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0449f992b5cd1088207fb272f208341e97ce2ca2fd6789e8cbc4ca51b7ab823f", kill_on_drop: false }`
[INFO] [stdout] 0449f992b5cd1088207fb272f208341e97ce2ca2fd6789e8cbc4ca51b7ab823f