[INFO] fetching crate lineartree 0.1.1...
[INFO] testing lineartree-0.1.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate lineartree 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate lineartree 0.1.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lineartree 0.1.1
[INFO] finished tweaking crates.io crate lineartree 0.1.1
[INFO] tweaked toml for crates.io crate lineartree 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba48b4f710eb578d6e0c46835153163eccc0a3ef89f28376e99f5d4a69659635
[INFO] running `Command { std: "docker" "start" "-a" "ba48b4f710eb578d6e0c46835153163eccc0a3ef89f28376e99f5d4a69659635", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba48b4f710eb578d6e0c46835153163eccc0a3ef89f28376e99f5d4a69659635", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba48b4f710eb578d6e0c46835153163eccc0a3ef89f28376e99f5d4a69659635", kill_on_drop: false }`
[INFO] [stdout] ba48b4f710eb578d6e0c46835153163eccc0a3ef89f28376e99f5d4a69659635
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a324d5d4bd213df02ac431d366a580e2f1fad5bfff9bfd27ebe7053592ec42c6
[INFO] running `Command { std: "docker" "start" "-a" "a324d5d4bd213df02ac431d366a580e2f1fad5bfff9bfd27ebe7053592ec42c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling lineartree v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "a324d5d4bd213df02ac431d366a580e2f1fad5bfff9bfd27ebe7053592ec42c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a324d5d4bd213df02ac431d366a580e2f1fad5bfff9bfd27ebe7053592ec42c6", kill_on_drop: false }`
[INFO] [stdout] a324d5d4bd213df02ac431d366a580e2f1fad5bfff9bfd27ebe7053592ec42c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b74c08886c6e814f6d30f68bdf69284cffd0c2f09e86c0a7c8d67d09caf5758
[INFO] running `Command { std: "docker" "start" "-a" "7b74c08886c6e814f6d30f68bdf69284cffd0c2f09e86c0a7c8d67d09caf5758", kill_on_drop: false }`
[INFO] [stderr]    Compiling lineartree v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "7b74c08886c6e814f6d30f68bdf69284cffd0c2f09e86c0a7c8d67d09caf5758", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b74c08886c6e814f6d30f68bdf69284cffd0c2f09e86c0a7c8d67d09caf5758", kill_on_drop: false }`
[INFO] [stdout] 7b74c08886c6e814f6d30f68bdf69284cffd0c2f09e86c0a7c8d67d09caf5758
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cada1d4fbccf59655ce2a40f396657e306afce9d2282254fbd42742f6a00fe08
[INFO] running `Command { std: "docker" "start" "-a" "cada1d4fbccf59655ce2a40f396657e306afce9d2282254fbd42742f6a00fe08", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lineartree-d4a00d124e419abb)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test tests::append_child ... ok
[INFO] [stdout] test tests::append_children ... ok
[INFO] [stdout] test tests::clone_tree ... ok
[INFO] [stdout] test tests::depth_first_iterator ... ok
[INFO] [stdout] test tests::get_parent ... ok
[INFO] [stdout] test tests::remove_node_error_already_removed ... ok
[INFO] [stdout] test tests::root2 ... ok
[INFO] [stdout] test tests::get_mut ... ok
[INFO] [stdout] test tests::remove_node_error_invalid_ref ... ok
[INFO] [stdout] test tests::remove_node ... ok
[INFO] [stdout] test tests::new_node ... ok
[INFO] [stdout] test tests::append_child_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lineartree
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 13) ... ignored
[INFO] [stdout] test src/lib.rs - (line 46) ... ignored
[INFO] [stdout] test src/lib.rs - (line 59) ... ignored
[INFO] [stdout] test src/lib.rs - (line 66) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 4 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cada1d4fbccf59655ce2a40f396657e306afce9d2282254fbd42742f6a00fe08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cada1d4fbccf59655ce2a40f396657e306afce9d2282254fbd42742f6a00fe08", kill_on_drop: false }`
[INFO] [stdout] cada1d4fbccf59655ce2a40f396657e306afce9d2282254fbd42742f6a00fe08