[INFO] cloning repository https://github.com/Soroushsrd/OxiTree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Soroushsrd/OxiTree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSoroushsrd%2FOxiTree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSoroushsrd%2FOxiTree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b516b32fd1bedcbe6601da1ac1ee906bf71bc3d5
[INFO] checking Soroushsrd/OxiTree against master#f5d3fe273b8b9e7125bf8856d44793b6cc4b6735 for pr-139587-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSoroushsrd%2FOxiTree" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Soroushsrd/OxiTree on toolchain f5d3fe273b8b9e7125bf8856d44793b6cc4b6735
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f5d3fe273b8b9e7125bf8856d44793b6cc4b6735" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Soroushsrd/OxiTree
[INFO] finished tweaking git repo https://github.com/Soroushsrd/OxiTree
[INFO] tweaked toml for git repo https://github.com/Soroushsrd/OxiTree written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Soroushsrd/OxiTree 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" "+f5d3fe273b8b9e7125bf8856d44793b6cc4b6735" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+f5d3fe273b8b9e7125bf8856d44793b6cc4b6735" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df1b57b3c809b919c0f614e0d2376fb69557da3b9bd6c5f4a2024c5963dcc37d
[INFO] running `Command { std: "docker" "start" "-a" "df1b57b3c809b919c0f614e0d2376fb69557da3b9bd6c5f4a2024c5963dcc37d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df1b57b3c809b919c0f614e0d2376fb69557da3b9bd6c5f4a2024c5963dcc37d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df1b57b3c809b919c0f614e0d2376fb69557da3b9bd6c5f4a2024c5963dcc37d", kill_on_drop: false }`
[INFO] [stdout] df1b57b3c809b919c0f614e0d2376fb69557da3b9bd6c5f4a2024c5963dcc37d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+f5d3fe273b8b9e7125bf8856d44793b6cc4b6735" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73710a6b9ed156293328888b25075b9c3fbfee3887d4bbde205b347ee8727edd
[INFO] running `Command { std: "docker" "start" "-a" "73710a6b9ed156293328888b25075b9c3fbfee3887d4bbde205b347ee8727edd", kill_on_drop: false }`
[INFO] [stderr]     Checking btrfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `root_ptr`
[INFO] [stdout]   --> src/btrees.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let root_ptr = {
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_root_ptr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root_ptr`
[INFO] [stdout]   --> src/btrees.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let root_ptr = {
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_root_ptr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/btrees.rs:103:24
[INFO] [stdout]     |
[INFO] [stdout] 103 |                     Ok(idx) => {
[INFO] [stdout]     |                        ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/btrees.rs:103:24
[INFO] [stdout]     |
[INFO] [stdout] 103 |                     Ok(idx) => {
[INFO] [stdout]     |                        ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/btrfs.rs:239:13
[INFO] [stdout]     |
[INFO] [stdout] 239 |         let mut superblock = Self {
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/btrfs.rs:239:13
[INFO] [stdout]     |
[INFO] [stdout] 239 |         let mut superblock = Self {
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "73710a6b9ed156293328888b25075b9c3fbfee3887d4bbde205b347ee8727edd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73710a6b9ed156293328888b25075b9c3fbfee3887d4bbde205b347ee8727edd", kill_on_drop: false }`
[INFO] [stdout] 73710a6b9ed156293328888b25075b9c3fbfee3887d4bbde205b347ee8727edd