[INFO] cloning repository https://github.com/AlyHKafoury/rust_btree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlyHKafoury/rust_btree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlyHKafoury%2Frust_btree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlyHKafoury%2Frust_btree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b07d989d8e38d829e95937bd60a3d3379176205c
[INFO] testing AlyHKafoury/rust_btree against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlyHKafoury%2Frust_btree" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AlyHKafoury/rust_btree on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AlyHKafoury/rust_btree
[INFO] finished tweaking git repo https://github.com/AlyHKafoury/rust_btree
[INFO] tweaked toml for git repo https://github.com/AlyHKafoury/rust_btree written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/AlyHKafoury/rust_btree already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 377a6a949e16b1a4d43f74fa39649239c6243b539fc43899c30f8500e7a09d7b
[INFO] running `Command { std: "docker" "start" "-a" "377a6a949e16b1a4d43f74fa39649239c6243b539fc43899c30f8500e7a09d7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "377a6a949e16b1a4d43f74fa39649239c6243b539fc43899c30f8500e7a09d7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "377a6a949e16b1a4d43f74fa39649239c6243b539fc43899c30f8500e7a09d7b", kill_on_drop: false }`
[INFO] [stdout] 377a6a949e16b1a4d43f74fa39649239c6243b539fc43899c30f8500e7a09d7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c405953a7715d47765e5dfb00d8e9bcf8b0fef0fcb123a5e56585ada87b2b74
[INFO] running `Command { std: "docker" "start" "-a" "6c405953a7715d47765e5dfb00d8e9bcf8b0fef0fcb123a5e56585ada87b2b74", kill_on_drop: false }`
[INFO] [stderr]    Compiling btree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `search`
[INFO] [stdout]   --> src/lib.rs:43:10
[INFO] [stdout]    |
[INFO] [stdout] 43 |   pub fn search(&self, k: isize) -> Option<&BtreeNode> {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.02s
[INFO] running `Command { std: "docker" "inspect" "6c405953a7715d47765e5dfb00d8e9bcf8b0fef0fcb123a5e56585ada87b2b74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c405953a7715d47765e5dfb00d8e9bcf8b0fef0fcb123a5e56585ada87b2b74", kill_on_drop: false }`
[INFO] [stdout] 6c405953a7715d47765e5dfb00d8e9bcf8b0fef0fcb123a5e56585ada87b2b74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcfd49e933b97f6168d54d1ac66add7d1dd6dd85e6549057ccc49c236b419520
[INFO] running `Command { std: "docker" "start" "-a" "bcfd49e933b97f6168d54d1ac66add7d1dd6dd85e6549057ccc49c236b419520", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling btree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `search`
[INFO] [stdout]   --> src/lib.rs:43:10
[INFO] [stdout]    |
[INFO] [stdout] 43 |   pub fn search(&self, k: isize) -> Option<&BtreeNode> {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 12.20s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/btree-f5b72f67398699f8)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/btree-e819cc298226a5dc)
[INFO] running `Command { std: "docker" "inspect" "bcfd49e933b97f6168d54d1ac66add7d1dd6dd85e6549057ccc49c236b419520", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcfd49e933b97f6168d54d1ac66add7d1dd6dd85e6549057ccc49c236b419520", kill_on_drop: false }`
[INFO] [stdout] bcfd49e933b97f6168d54d1ac66add7d1dd6dd85e6549057ccc49c236b419520
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 404bfaafd1a48364e8a9ab17bbece73a7b9bdf2e188df5589c639d8d09874c50
[INFO] running `Command { std: "docker" "start" "-a" "404bfaafd1a48364e8a9ab17bbece73a7b9bdf2e188df5589c639d8d09874c50", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: associated function is never used: `search`
[INFO] [stderr]   --> src/lib.rs:43:10
[INFO] [stderr]    |
[INFO] [stderr] 43 |   pub fn search(&self, k: isize) -> Option<&BtreeNode> {
[INFO] [stderr]    |          ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `btree` (bin "btree" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/btree-f5b72f67398699f8)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/btree-e819cc298226a5dc)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests btree
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "404bfaafd1a48364e8a9ab17bbece73a7b9bdf2e188df5589c639d8d09874c50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "404bfaafd1a48364e8a9ab17bbece73a7b9bdf2e188df5589c639d8d09874c50", kill_on_drop: false }`
[INFO] [stdout] 404bfaafd1a48364e8a9ab17bbece73a7b9bdf2e188df5589c639d8d09874c50