[INFO] cloning repository https://github.com/miladtsx/merkle_tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/miladtsx/merkle_tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiladtsx%2Fmerkle_tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiladtsx%2Fmerkle_tree'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiladtsx%2Fmerkle_tree: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/miladtsx/merkle_tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/miladtsx/merkle_tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiladtsx%2Fmerkle_tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiladtsx%2Fmerkle_tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eccc54305f0fdfeaf07d803dab9f6d20595f8f50
[INFO] checking miladtsx/merkle_tree against try#cd420d8bda33494ba3cc45048d5f067484a32b94 for pr-140209-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiladtsx%2Fmerkle_tree" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/miladtsx/merkle_tree on toolchain cd420d8bda33494ba3cc45048d5f067484a32b94
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/miladtsx/merkle_tree
[INFO] finished tweaking git repo https://github.com/miladtsx/merkle_tree
[INFO] tweaked toml for git repo https://github.com/miladtsx/merkle_tree written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/miladtsx/merkle_tree 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" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fee282f5f974b7fa9466bfca8391a225729b02fa9aa0f9d0922e9fd103268104
[INFO] running `Command { std: "docker" "start" "-a" "fee282f5f974b7fa9466bfca8391a225729b02fa9aa0f9d0922e9fd103268104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fee282f5f974b7fa9466bfca8391a225729b02fa9aa0f9d0922e9fd103268104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fee282f5f974b7fa9466bfca8391a225729b02fa9aa0f9d0922e9fd103268104", kill_on_drop: false }`
[INFO] [stdout] fee282f5f974b7fa9466bfca8391a225729b02fa9aa0f9d0922e9fd103268104
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff3e7e8d4c278e5be0417cb2d76563e5e0180a486eb65ef94540b2e0ec6c33e0
[INFO] running `Command { std: "docker" "start" "-a" "ff3e7e8d4c278e5be0417cb2d76563e5e0180a486eb65ef94540b2e0ec6c33e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking cpufeatures v0.2.16
[INFO] [stderr]     Checking fixedbitset v0.4.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking indexmap v2.7.1
[INFO] [stderr]     Checking petgraph v0.6.5
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking merkle-tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `leaves` is never read
[INFO] [stdout]  --> src/merkle_tree.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct MerkleTree {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 7 |     root: Option<String>,
[INFO] [stdout] 8 |     leaves: Vec<String>,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `MerkleTree` has a derived impl for the trait `Debug`, 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: field `leaves` is never read
[INFO] [stdout]  --> src/merkle_tree.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct MerkleTree {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 7 |     root: Option<String>,
[INFO] [stdout] 8 |     leaves: Vec<String>,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `MerkleTree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.43s
[INFO] running `Command { std: "docker" "inspect" "ff3e7e8d4c278e5be0417cb2d76563e5e0180a486eb65ef94540b2e0ec6c33e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff3e7e8d4c278e5be0417cb2d76563e5e0180a486eb65ef94540b2e0ec6c33e0", kill_on_drop: false }`
[INFO] [stdout] ff3e7e8d4c278e5be0417cb2d76563e5e0180a486eb65ef94540b2e0ec6c33e0