[INFO] cloning repository https://github.com/Deitos-Network/ceph-hashing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Deitos-Network/ceph-hashing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeitos-Network%2Fceph-hashing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeitos-Network%2Fceph-hashing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0daf0294eb55aa49dd528d0cf48998725708d966
[INFO] checking Deitos-Network/ceph-hashing/0daf0294eb55aa49dd528d0cf48998725708d966 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeitos-Network%2Fceph-hashing" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Deitos-Network/ceph-hashing on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Deitos-Network/ceph-hashing
[INFO] finished tweaking git repo https://github.com/Deitos-Network/ceph-hashing
[INFO] tweaked toml for git repo https://github.com/Deitos-Network/ceph-hashing written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Deitos-Network/ceph-hashing 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 394699d6b8ecbafc9be0d4dd3feda98dd78e371864f1ad66d271e30c90bc74d3
[INFO] running `Command { std: "docker" "start" "-a" "394699d6b8ecbafc9be0d4dd3feda98dd78e371864f1ad66d271e30c90bc74d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "394699d6b8ecbafc9be0d4dd3feda98dd78e371864f1ad66d271e30c90bc74d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "394699d6b8ecbafc9be0d4dd3feda98dd78e371864f1ad66d271e30c90bc74d3", kill_on_drop: false }`
[INFO] [stdout] 394699d6b8ecbafc9be0d4dd3feda98dd78e371864f1ad66d271e30c90bc74d3
[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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94c631036b246b4d5c4db5786b6025a9019c9e0d76b7942a55c9b75a7039b8b5
[INFO] running `Command { std: "docker" "start" "-a" "94c631036b246b4d5c4db5786b6025a9019c9e0d76b7942a55c9b75a7039b8b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling openssl v0.10.55
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]    Compiling openssl-sys v0.9.90
[INFO] [stderr]     Checking crypto-hash v0.3.4
[INFO] [stderr]     Checking ceph-hashing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `PathBuf`
[INFO] [stdout]  --> src/merkle_tree.rs:4:23
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::path::{Path, PathBuf};
[INFO] [stdout]   |                       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `left` and `right` are never read
[INFO] [stdout]   --> src/merkle_tree.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct MerkleNode {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 10 |     pub left: Option<Box<MerkleNode>>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 11 |     pub right: Option<Box<MerkleNode>>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MerkleNode` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PathBuf`
[INFO] [stdout]  --> src/merkle_tree.rs:4:23
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::path::{Path, PathBuf};
[INFO] [stdout]   |                       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `left` and `right` are never read
[INFO] [stdout]   --> src/merkle_tree.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct MerkleNode {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 10 |     pub left: Option<Box<MerkleNode>>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 11 |     pub right: Option<Box<MerkleNode>>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MerkleNode` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.29s
[INFO] running `Command { std: "docker" "inspect" "94c631036b246b4d5c4db5786b6025a9019c9e0d76b7942a55c9b75a7039b8b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94c631036b246b4d5c4db5786b6025a9019c9e0d76b7942a55c9b75a7039b8b5", kill_on_drop: false }`
[INFO] [stdout] 94c631036b246b4d5c4db5786b6025a9019c9e0d76b7942a55c9b75a7039b8b5