[INFO] fetching crate dltree 0.1.5...
[INFO] testing dltree-0.1.5 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate dltree 0.1.5 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate dltree 0.1.5 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 crates.io crate dltree 0.1.5
[INFO] finished tweaking crates.io crate dltree 0.1.5
[INFO] tweaked toml for crates.io crate dltree 0.1.5 written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] b4a77c592a404d3295310efc98a8dcf6940285a687b3288482a931f6c1b35a41
[INFO] running `Command { std: "docker" "start" "-a" "b4a77c592a404d3295310efc98a8dcf6940285a687b3288482a931f6c1b35a41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4a77c592a404d3295310efc98a8dcf6940285a687b3288482a931f6c1b35a41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4a77c592a404d3295310efc98a8dcf6940285a687b3288482a931f6c1b35a41", kill_on_drop: false }`
[INFO] [stdout] b4a77c592a404d3295310efc98a8dcf6940285a687b3288482a931f6c1b35a41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] 5fa3e4bfa1aff285ebffc7fb3e9988498da7128d63215a3c379245996506f3e3
[INFO] running `Command { std: "docker" "start" "-a" "5fa3e4bfa1aff285ebffc7fb3e9988498da7128d63215a3c379245996506f3e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling dltree v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "5fa3e4bfa1aff285ebffc7fb3e9988498da7128d63215a3c379245996506f3e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fa3e4bfa1aff285ebffc7fb3e9988498da7128d63215a3c379245996506f3e3", kill_on_drop: false }`
[INFO] [stdout] 5fa3e4bfa1aff285ebffc7fb3e9988498da7128d63215a3c379245996506f3e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] ff3964705aaf40439b9d94eb257bc4b610123851385084df02b6bdb2f6ab770e
[INFO] running `Command { std: "docker" "start" "-a" "ff3964705aaf40439b9d94eb257bc4b610123851385084df02b6bdb2f6ab770e", kill_on_drop: false }`
[INFO] [stderr]    Compiling dltree v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.56s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/dltree-7d46ca053fc3000c)
[INFO] running `Command { std: "docker" "inspect" "ff3964705aaf40439b9d94eb257bc4b610123851385084df02b6bdb2f6ab770e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff3964705aaf40439b9d94eb257bc4b610123851385084df02b6bdb2f6ab770e", kill_on_drop: false }`
[INFO] [stdout] ff3964705aaf40439b9d94eb257bc4b610123851385084df02b6bdb2f6ab770e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] 7d35cb299b1386d2c1cde78e61350fb5408fc5652c6f7e27c1df5b1f2cc1cd95
[INFO] running `Command { std: "docker" "start" "-a" "7d35cb299b1386d2c1cde78e61350fb5408fc5652c6f7e27c1df5b1f2cc1cd95", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/dltree-7d46ca053fc3000c)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tree::tests::element_rempval_test ... ok
[INFO] [stdout] test tree::tests::replace_test ... ok
[INFO] [stdout] test tree::tests::insert_test ... ok
[INFO] [stdout] test tree::tests::tree_building_test ... ok
[INFO] [stdout] test tree::tests::tree_element_test ... ok
[INFO] [stdout] test tree::tests::value_set_test ... ok
[INFO] [stdout] test tree_elements::tree_element_type::tests::check_integrity_violation ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests dltree
[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" "7d35cb299b1386d2c1cde78e61350fb5408fc5652c6f7e27c1df5b1f2cc1cd95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d35cb299b1386d2c1cde78e61350fb5408fc5652c6f7e27c1df5b1f2cc1cd95", kill_on_drop: false }`
[INFO] [stdout] 7d35cb299b1386d2c1cde78e61350fb5408fc5652c6f7e27c1df5b1f2cc1cd95