[INFO] fetching crate arcos-kdl 0.3.1...
[INFO] testing arcos-kdl-0.3.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate arcos-kdl 0.3.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate arcos-kdl 0.3.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arcos-kdl 0.3.1
[INFO] finished tweaking crates.io crate arcos-kdl 0.3.1
[INFO] tweaked toml for crates.io crate arcos-kdl 0.3.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d1b43da047f2dfbc01510454c437dc6755a60ee925534f31e4ddcad81bdf229
[INFO] running `Command { std: "docker" "start" "-a" "9d1b43da047f2dfbc01510454c437dc6755a60ee925534f31e4ddcad81bdf229", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d1b43da047f2dfbc01510454c437dc6755a60ee925534f31e4ddcad81bdf229", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d1b43da047f2dfbc01510454c437dc6755a60ee925534f31e4ddcad81bdf229", kill_on_drop: false }`
[INFO] [stdout] 9d1b43da047f2dfbc01510454c437dc6755a60ee925534f31e4ddcad81bdf229
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 700541eeb80ad9d3ac639ac9ddc30cda1d6d66736a8a75797977f96ab365d00b
[INFO] running `Command { std: "docker" "start" "-a" "700541eeb80ad9d3ac639ac9ddc30cda1d6d66736a8a75797977f96ab365d00b", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling generic-array v0.13.3
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling simba v0.1.5
[INFO] [stderr]    Compiling nalgebra v0.21.1
[INFO] [stderr]    Compiling arcos-kdl v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.68s
[INFO] running `Command { std: "docker" "inspect" "700541eeb80ad9d3ac639ac9ddc30cda1d6d66736a8a75797977f96ab365d00b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "700541eeb80ad9d3ac639ac9ddc30cda1d6d66736a8a75797977f96ab365d00b", kill_on_drop: false }`
[INFO] [stdout] 700541eeb80ad9d3ac639ac9ddc30cda1d6d66736a8a75797977f96ab365d00b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9b353d48334280df97cb9e2a27f2d78321ae3e906afc786cefa0276db6a20ff
[INFO] running `Command { std: "docker" "start" "-a" "d9b353d48334280df97cb9e2a27f2d78321ae3e906afc786cefa0276db6a20ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling arcos-kdl v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `retry`
[INFO] [stdout]    --> src/kinematic_arm.rs:600:13
[INFO] [stdout]     |
[INFO] [stdout] 600 |         for retry in 0..retries {
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_retry`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/kinematic_arm.rs:632:13
[INFO] [stdout]     |
[INFO] [stdout] 632 |         for i in 0..10 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.25s
[INFO] running `Command { std: "docker" "inspect" "d9b353d48334280df97cb9e2a27f2d78321ae3e906afc786cefa0276db6a20ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9b353d48334280df97cb9e2a27f2d78321ae3e906afc786cefa0276db6a20ff", kill_on_drop: false }`
[INFO] [stdout] d9b353d48334280df97cb9e2a27f2d78321ae3e906afc786cefa0276db6a20ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d89d239a164bd153637039dd9d40a09a9081ba45f860037b70d9dd6cc46afcdc
[INFO] running `Command { std: "docker" "start" "-a" "d89d239a164bd153637039dd9d40a09a9081ba45f860037b70d9dd6cc46afcdc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `retry`
[INFO] [stderr]    --> src/kinematic_arm.rs:600:13
[INFO] [stderr]     |
[INFO] [stderr] 600 |         for retry in 0..retries {
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_retry`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/kinematic_arm.rs:632:13
[INFO] [stderr]     |
[INFO] [stderr] 632 |         for i in 0..10 {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: `arcos-kdl` (lib test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/arcos_kdl-5b3d0648f23d4278)
[INFO] [stdout] 
[INFO] [stdout] running 39 tests
[INFO] [stdout] test geometry::tests::change_ref_point ... ok
[INFO] [stdout] test geometry::tests::add_delta_traslation ... ok
[INFO] [stdout] test forward_kinematics::tests::base_pose_correct ... ok
[INFO] [stdout] test forward_kinematics::tests::middle_pose_correct ... ok
[INFO] [stdout] test forward_diff_kinematics::test::end_twist_correct ... ok
[INFO] [stdout] test geometry::tests::add_delta_example ... ok
[INFO] [stdout] test geometry::tests::change_ref_frame ... ok
[INFO] [stdout] test forward_kinematics::tests::end_pose_correct ... ok
[INFO] [stdout] test geometry::tests::build_destroy_rot_vec ... ok
[INFO] [stdout] test geometry::tests::add_delta_rotation ... ok
[INFO] [stdout] test geometry::tests::change_ref_base ... ok
[INFO] [stdout] test forward_diff_kinematics::test::base_twist_correct ... ok
[INFO] [stdout] test forward_diff_kinematics::test::middle_twist_correct ... ok
[INFO] [stdout] test geometry::tests::diff_example ... ok
[INFO] [stdout] test geometry::tests::diff_rotation ... ok
[INFO] [stdout] test geometry::tests::diff_translation ... ok
[INFO] [stdout] test geometry::tests::transformation_by_zero ... ok
[INFO] [stdout] test jacobian::tests::change_ref_base ... ok
[INFO] [stdout] test jacobian::tests::change_ref_frame ... ok
[INFO] [stdout] test jacobian::tests::change_ref_point ... ok
[INFO] [stdout] test jacobian::tests::get_twist_from_jacobian ... ok
[INFO] [stdout] test segment::tests::calculate_pose ... ok
[INFO] [stdout] test svd_eigen::test::test_householder_reduction_to_bidiagonal ... ok
[INFO] [stdout] test svd_eigen::test::test_accumulation_right_transformations ... ok
[INFO] [stdout] test joint::tests::calculate_twist ... ok
[INFO] [stdout] test joint::tests::calculate_pose ... ok
[INFO] [stdout] test svd_eigen::test::test_compute ... ok
[INFO] [stdout] test jacobian::tests::jacobian_from_chain_correct ... ok
[INFO] [stdout] test svd_eigen::test::test_diagonalize_bidiagonal_form ... ok
[INFO] [stdout] test inverse_diff_kinematics::test::inverse_kinematics_correct ... ok
[INFO] [stdout] test segment::tests::calculate_twist ... ok
[INFO] [stdout] test svd_eigen::test::test_accumulation_left_transformations ... ok
[INFO] [stdout] test kinematic_arm::tests::handle_descriptions ... ok
[INFO] [stdout] test geometry::tests::add_delta_inverts_diff ... ok
[INFO] [stdout] test geometry::tests::diff_inverts_add_delta ... ok
[INFO] [stdout] test kinematic_arm::tests::move_the_arm ... ok
[INFO] [stdout] test geometry::tests::inversion ... ok
[INFO] [stdout] test kinematic_arm::tests::move_to_unreachable ... ok
[INFO] [stdout] test kinematic_arm::tests::move_to_many_reachable_goals ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 39 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 31.72s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests arcos-kdl
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 61) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.61s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d89d239a164bd153637039dd9d40a09a9081ba45f860037b70d9dd6cc46afcdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d89d239a164bd153637039dd9d40a09a9081ba45f860037b70d9dd6cc46afcdc", kill_on_drop: false }`
[INFO] [stdout] d89d239a164bd153637039dd9d40a09a9081ba45f860037b70d9dd6cc46afcdc