[INFO] fetching crate intervallum 1.3.0...
[INFO] testing intervallum-1.3.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate intervallum 1.3.0 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate intervallum 1.3.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate intervallum 1.3.0
[INFO] finished tweaking crates.io crate intervallum 1.3.0
[INFO] tweaked toml for crates.io crate intervallum 1.3.0 written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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" "+1.54.0" "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-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d019f7cbeeeafbcd0bbbb5b733405434eca6a684f15a555d0e80a3ac863ca41
[INFO] running `Command { std: "docker" "start" "-a" "9d019f7cbeeeafbcd0bbbb5b733405434eca6a684f15a555d0e80a3ac863ca41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d019f7cbeeeafbcd0bbbb5b733405434eca6a684f15a555d0e80a3ac863ca41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d019f7cbeeeafbcd0bbbb5b733405434eca6a684f15a555d0e80a3ac863ca41", kill_on_drop: false }`
[INFO] [stdout] 9d019f7cbeeeafbcd0bbbb5b733405434eca6a684f15a555d0e80a3ac863ca41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be284189688e836b4c18492f8bffea52b87ecba3f4626c6a84053de28ced809a
[INFO] running `Command { std: "docker" "start" "-a" "be284189688e836b4c18492f8bffea52b87ecba3f4626c6a84053de28ced809a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling trilean v1.1.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling bit-set v0.2.0
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling gcollections v1.4.0
[INFO] [stderr]    Compiling intervallum v1.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/libinterval/lib.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.64s
[INFO] running `Command { std: "docker" "inspect" "be284189688e836b4c18492f8bffea52b87ecba3f4626c6a84053de28ced809a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be284189688e836b4c18492f8bffea52b87ecba3f4626c6a84053de28ced809a", kill_on_drop: false }`
[INFO] [stdout] be284189688e836b4c18492f8bffea52b87ecba3f4626c6a84053de28ced809a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1b56498d9dd5b44d5cae1747bfbf55c29ab9cf43aeb522b5a72bbdec95c30ed
[INFO] running `Command { std: "docker" "start" "-a" "c1b56498d9dd5b44d5cae1747bfbf55c29ab9cf43aeb522b5a72bbdec95c30ed", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling intervallum v1.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/libinterval/lib.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/libinterval/lib.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/libinterval/interval_set.rs:840:9
[INFO] [stdout]     |
[INFO] [stdout] 840 |         format!("{} is not contained inside {}, but it should.", i, is));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 840 |         "{} is not contained inside {}, but it should.", i, is);
[INFO] [stdout]     |        --                                                    --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/libinterval/interval_set.rs:844:9
[INFO] [stdout]     |
[INFO] [stdout] 844 |         format!("{} is contained inside {}, but it should not.", i, is));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 844 |         "{} is contained inside {}, but it should not.", i, is);
[INFO] [stdout]     |        --                                                    --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/libinterval/interval_set.rs:855:7
[INFO] [stdout]     |
[INFO] [stdout] 855 |       format!("{} | {} is different from the expected value: {}.", test_id, result, expected));
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 855 |       "{} | {} is different from the expected value: {}.", test_id, result, expected);
[INFO] [stdout]     |      --                                                                            --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.42s
[INFO] running `Command { std: "docker" "inspect" "c1b56498d9dd5b44d5cae1747bfbf55c29ab9cf43aeb522b5a72bbdec95c30ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1b56498d9dd5b44d5cae1747bfbf55c29ab9cf43aeb522b5a72bbdec95c30ed", kill_on_drop: false }`
[INFO] [stdout] c1b56498d9dd5b44d5cae1747bfbf55c29ab9cf43aeb522b5a72bbdec95c30ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eb7bd7a5139e2383f82fc3bbd1f74826aa751a72bc8191b8d7bc9b38342da5ce
[INFO] running `Command { std: "docker" "start" "-a" "eb7bd7a5139e2383f82fc3bbd1f74826aa751a72bc8191b8d7bc9b38342da5ce", kill_on_drop: false }`
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/libinterval/lib.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/libinterval/lib.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/libinterval/interval_set.rs:840:9
[INFO] [stderr]     |
[INFO] [stderr] 840 |         format!("{} is not contained inside {}, but it should.", i, is));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 840 |         "{} is not contained inside {}, but it should.", i, is);
[INFO] [stderr]     |        --                                                    --
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/libinterval/interval_set.rs:844:9
[INFO] [stderr]     |
[INFO] [stderr] 844 |         format!("{} is contained inside {}, but it should not.", i, is));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 844 |         "{} is contained inside {}, but it should not.", i, is);
[INFO] [stderr]     |        --                                                    --
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/libinterval/interval_set.rs:855:7
[INFO] [stderr]     |
[INFO] [stderr] 855 |       format!("{} | {} is different from the expected value: {}.", test_id, result, expected));
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 855 |       "{} | {} is different from the expected value: {}.", test_id, result, expected);
[INFO] [stderr]     |      --                                                                            --
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/interval-b8b94815afc9ef8f)
[INFO] [stdout] 
[INFO] [stdout] running 38 tests
[INFO] [stdout] test interval::tests::contains_test ... ok
[INFO] [stdout] test interval::tests::add_test ... ok
[INFO] [stdout] test interval::tests::add_sub_mul_bound_test ... ok
[INFO] [stdout] test interval::tests::difference_test ... ok
[INFO] [stdout] test interval::tests::difference_value_option_test ... ok
[INFO] [stdout] test interval::tests::equality_test ... ok
[INFO] [stdout] test interval::tests::is_disjoint_bound_test ... ok
[INFO] [stdout] test interval::tests::hull_test ... ok
[INFO] [stdout] test interval::tests::intersection_value_optional_test ... ok
[INFO] [stdout] test interval::tests::intersection_test ... ok
[INFO] [stdout] test interval::tests::is_subset_test ... ok
[INFO] [stdout] test interval::tests::is_disjoint_option_test ... ok
[INFO] [stdout] test interval::tests::mul_test ... ok
[INFO] [stdout] test interval::tests::shrink_left_test ... ok
[INFO] [stdout] test interval::tests::size_test ... ok
[INFO] [stdout] test interval::tests::sub_test ... ok
[INFO] [stdout] test interval::tests::shrink_right_test ... ok
[INFO] [stdout] test interval::tests::is_disjoint_test ... ok
[INFO] [stdout] test interval_set::tests::test_arithmetics_bound ... ok
[INFO] [stdout] test interval::tests::to_interval_id_test ... ok
[INFO] [stdout] test interval::tests::test_lattice ... ok
[INFO] [stdout] test interval_set::tests::test_complement ... ok
[INFO] [stdout] test interval_set::tests::test_arithmetics ... ok
[INFO] [stdout] test interval_set::tests::test_intersection ... ok
[INFO] [stdout] test interval_set::tests::test_difference ... ok
[INFO] [stdout] test interval::tests::is_proper_subset_test ... ok
[INFO] [stdout] test interval_set::tests::test_contains ... ok
[INFO] [stdout] test interval_set::tests::test_overlap_bound ... ok
[INFO] [stdout] test interval_set::tests::test_iterator ... ok
[INFO] [stdout] test interval_set::tests::test_overlap_and_is_disjoint ... ok
[INFO] [stdout] test interval_set::tests::test_lattice ... ok
[INFO] [stdout] test interval_set::tests::test_subset ... ok
[INFO] [stdout] test interval_set::tests::test_union ... ok
[INFO] [stdout] test interval_set::tests::test_overlap_option ... ok
[INFO] [stdout] test ops::tests::strict_shrink_right ... ok
[INFO] [stdout] test interval_set::tests::test_shrink ... ok
[INFO] [stdout] test ops::tests::strict_shrink_left ... ok
[INFO] [stdout] test interval_set::tests::test_symmetric_difference ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 38 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests interval
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/libinterval/interval.rs - interval (line 17) ... ok
[INFO] [stdout] test src/libinterval/interval_set.rs - interval_set (line 13) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.17s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "eb7bd7a5139e2383f82fc3bbd1f74826aa751a72bc8191b8d7bc9b38342da5ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb7bd7a5139e2383f82fc3bbd1f74826aa751a72bc8191b8d7bc9b38342da5ce", kill_on_drop: false }`
[INFO] [stdout] eb7bd7a5139e2383f82fc3bbd1f74826aa751a72bc8191b8d7bc9b38342da5ce
