[INFO] fetching crate gctree 0.4.0...
[INFO] testing gctree-0.4.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate gctree 0.4.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate gctree 0.4.0 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 gctree 0.4.0
[INFO] finished tweaking crates.io crate gctree 0.4.0
[INFO] tweaked toml for crates.io crate gctree 0.4.0 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded deltoid v0.11.3
[INFO] [stderr]   Downloaded deltoid-derive v0.11.1
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9c592de935f358abab1cec3436c9040f44bb9c4750555887b49d34872ab92544
[INFO] running `Command { std: "docker" "start" "-a" "9c592de935f358abab1cec3436c9040f44bb9c4750555887b49d34872ab92544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c592de935f358abab1cec3436c9040f44bb9c4750555887b49d34872ab92544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c592de935f358abab1cec3436c9040f44bb9c4750555887b49d34872ab92544", kill_on_drop: false }`
[INFO] [stdout] 9c592de935f358abab1cec3436c9040f44bb9c4750555887b49d34872ab92544
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7952bb7182068354582fd30803d1debd5f3d674178e93c4af5742a1113c2b6bd
[INFO] running `Command { std: "docker" "start" "-a" "7952bb7182068354582fd30803d1debd5f3d674178e93c4af5742a1113c2b6bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling deltoid v0.11.3
[INFO] [stderr]    Compiling deltoid-derive v0.11.1
[INFO] [stderr]    Compiling gctree v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.91s
[INFO] running `Command { std: "docker" "inspect" "7952bb7182068354582fd30803d1debd5f3d674178e93c4af5742a1113c2b6bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7952bb7182068354582fd30803d1debd5f3d674178e93c4af5742a1113c2b6bd", kill_on_drop: false }`
[INFO] [stdout] 7952bb7182068354582fd30803d1debd5f3d674178e93c4af5742a1113c2b6bd
[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] 5cd99babfefc1f9c3dbf970b9a5c908cea0d7162627dc9ed8c4edb1ea7f678d6
[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" "5cd99babfefc1f9c3dbf970b9a5c908cea0d7162627dc9ed8c4edb1ea7f678d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling gctree v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.51s
[INFO] running `Command { std: "docker" "inspect" "5cd99babfefc1f9c3dbf970b9a5c908cea0d7162627dc9ed8c4edb1ea7f678d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cd99babfefc1f9c3dbf970b9a5c908cea0d7162627dc9ed8c4edb1ea7f678d6", kill_on_drop: false }`
[INFO] [stdout] 5cd99babfefc1f9c3dbf970b9a5c908cea0d7162627dc9ed8c4edb1ea7f678d6
[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] 44e0d142437a5f2300fcbc512fd3aa375c0caed2a3e1fbc4d5d7dccf87e9272d
[INFO] running `Command { std: "docker" "start" "-a" "44e0d142437a5f2300fcbc512fd3aa375c0caed2a3e1fbc4d5d7dccf87e9272d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/gctree-b8e7c7345c52cc83)
[INFO] [stderr]    Doc-tests gctree
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::ancestors ... ok
[INFO] [stdout] test tests::add_subtree ... ok
[INFO] [stdout] test tests::dfs_traversal ... ok
[INFO] [stdout] test tests::remove_subtree ... ok
[INFO] [stdout] test tests::bfs_traversal ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 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 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "44e0d142437a5f2300fcbc512fd3aa375c0caed2a3e1fbc4d5d7dccf87e9272d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44e0d142437a5f2300fcbc512fd3aa375c0caed2a3e1fbc4d5d7dccf87e9272d", kill_on_drop: false }`
[INFO] [stdout] 44e0d142437a5f2300fcbc512fd3aa375c0caed2a3e1fbc4d5d7dccf87e9272d