[INFO] fetching crate btreec 0.3.0...
[INFO] testing btreec-0.3.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate btreec 0.3.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate btreec 0.3.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate btreec 0.3.0
[INFO] finished tweaking crates.io crate btreec 0.3.0
[INFO] tweaked toml for crates.io crate btreec 0.3.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5788ba7491f73adb74ace482e6ef4af19ba10ec9724d2b8e7d533a570274395
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b5788ba7491f73adb74ace482e6ef4af19ba10ec9724d2b8e7d533a570274395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5788ba7491f73adb74ace482e6ef4af19ba10ec9724d2b8e7d533a570274395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5788ba7491f73adb74ace482e6ef4af19ba10ec9724d2b8e7d533a570274395", kill_on_drop: false }`
[INFO] [stdout] b5788ba7491f73adb74ace482e6ef4af19ba10ec9724d2b8e7d533a570274395
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 206bca8ced2517a10149acd0ed882a5eb325cfcd1a89bd49fe0775f265f7e759
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "206bca8ced2517a10149acd0ed882a5eb325cfcd1a89bd49fe0775f265f7e759", kill_on_drop: false }`
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling btreec v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.41s
[INFO] running `Command { std: "docker" "inspect" "206bca8ced2517a10149acd0ed882a5eb325cfcd1a89bd49fe0775f265f7e759", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "206bca8ced2517a10149acd0ed882a5eb325cfcd1a89bd49fe0775f265f7e759", kill_on_drop: false }`
[INFO] [stdout] 206bca8ced2517a10149acd0ed882a5eb325cfcd1a89bd49fe0775f265f7e759
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41bc79cf7b99049de9745f83eff4e5980f1402459731a34caa1bcdd2c6d5b39f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "41bc79cf7b99049de9745f83eff4e5980f1402459731a34caa1bcdd2c6d5b39f", kill_on_drop: false }`
[INFO] [stderr]    Compiling btreec v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `text`
[INFO] [stdout]    --> src/lib.rs:264:13
[INFO] [stdout]     |
[INFO] [stdout] 264 |             text: String,
[INFO] [stdout]     |             ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `TestItem` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:261:18
[INFO] [stdout]     |
[INFO] [stdout] 261 |         #[derive(Debug, Default, Clone)]
[INFO] [stdout]     |                  ^^^^^           ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "41bc79cf7b99049de9745f83eff4e5980f1402459731a34caa1bcdd2c6d5b39f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41bc79cf7b99049de9745f83eff4e5980f1402459731a34caa1bcdd2c6d5b39f", kill_on_drop: false }`
[INFO] [stdout] 41bc79cf7b99049de9745f83eff4e5980f1402459731a34caa1bcdd2c6d5b39f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cf9f8a7ec17f4392d5fcc359567cec0aca2d84287eeb3fda500049ab63c1803a
[INFO] running `Command { std: "docker" "start" "-a" "cf9f8a7ec17f4392d5fcc359567cec0aca2d84287eeb3fda500049ab63c1803a", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `text`
[INFO] [stderr]    --> src/lib.rs:264:13
[INFO] [stderr]     |
[INFO] [stderr] 264 |             text: String,
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `TestItem` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/lib.rs:261:18
[INFO] [stderr]     |
[INFO] [stderr] 261 |         #[derive(Debug, Default, Clone)]
[INFO] [stderr]     |                  ^^^^^           ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `btreec` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/btreec-cdb1ada0e4db1247)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::ascend_descend ... ok
[INFO] [stdout] test tests::min_max_pop ... ok
[INFO] [stderr]    Doc-tests btreec
[INFO] [stdout] test tests::btreec_new ... ok
[INFO] [stdout] test tests::db_item ... ok
[INFO] [stdout] test tests::basic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cf9f8a7ec17f4392d5fcc359567cec0aca2d84287eeb3fda500049ab63c1803a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf9f8a7ec17f4392d5fcc359567cec0aca2d84287eeb3fda500049ab63c1803a", kill_on_drop: false }`
[INFO] [stdout] cf9f8a7ec17f4392d5fcc359567cec0aca2d84287eeb3fda500049ab63c1803a