[INFO] fetching crate ckb-merkle-mountain-range 0.3.2...
[INFO] checking ckb-merkle-mountain-range-0.3.2 against try#c05ee43175e02d208faed1fcc0f436c56e48bba6 for pr-92413
[INFO] extracting crate ckb-merkle-mountain-range 0.3.2 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate ckb-merkle-mountain-range 0.3.2 on toolchain c05ee43175e02d208faed1fcc0f436c56e48bba6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ckb-merkle-mountain-range 0.3.2
[INFO] finished tweaking crates.io crate ckb-merkle-mountain-range 0.3.2
[INFO] tweaked toml for crates.io crate ckb-merkle-mountain-range 0.3.2 written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b124cea5c10dc8f5b9f657735a5ae7494fa2ffac7e363e4eb61e91563688aac6
[INFO] running `Command { std: "docker" "start" "-a" "b124cea5c10dc8f5b9f657735a5ae7494fa2ffac7e363e4eb61e91563688aac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b124cea5c10dc8f5b9f657735a5ae7494fa2ffac7e363e4eb61e91563688aac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b124cea5c10dc8f5b9f657735a5ae7494fa2ffac7e363e4eb61e91563688aac6", kill_on_drop: false }`
[INFO] [stdout] b124cea5c10dc8f5b9f657735a5ae7494fa2ffac7e363e4eb61e91563688aac6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "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:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1418e0544a32417b9e9983463ceaf7b960b8163e37c00f9ffd68bae0a2674fa
[INFO] running `Command { std: "docker" "start" "-a" "e1418e0544a32417b9e9983463ceaf7b960b8163e37c00f9ffd68bae0a2674fa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]     Checking plotters-backend v0.3.2
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking faster-hex v0.3.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]    Compiling blake2b-rs v0.1.5
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking ckb-merkle-mountain-range v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stdout] error: lifetime parameter `'a` never used
[INFO] [stdout]   --> src/mmr.rs:24:6
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl<'a, T: Clone + PartialEq + Debug, M: Merge<Item = T>, S: MMRStore<T>> MMR<T, M, S> {
[INFO] [stdout]    |      ^^--
[INFO] [stdout]    |      |
[INFO] [stdout]    |      help: elide the unused lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(unused_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ckb-merkle-mountain-range` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e1418e0544a32417b9e9983463ceaf7b960b8163e37c00f9ffd68bae0a2674fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1418e0544a32417b9e9983463ceaf7b960b8163e37c00f9ffd68bae0a2674fa", kill_on_drop: false }`
[INFO] [stdout] e1418e0544a32417b9e9983463ceaf7b960b8163e37c00f9ffd68bae0a2674fa