[INFO] fetching crate allehanda 0.1.4...
[INFO] testing allehanda-0.1.4 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate allehanda 0.1.4 into /workspace/builds/worker-24/source
[INFO] validating manifest of crates.io crate allehanda 0.1.4 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 allehanda 0.1.4
[INFO] finished tweaking crates.io crate allehanda 0.1.4
[INFO] tweaked toml for crates.io crate allehanda 0.1.4 written to /workspace/builds/worker-24/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] cdafff762d9ede4e8a540d99f40305f798be2e238395e6b63263be1ae6ced653
[INFO] running `Command { std: "docker" "start" "-a" "cdafff762d9ede4e8a540d99f40305f798be2e238395e6b63263be1ae6ced653", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdafff762d9ede4e8a540d99f40305f798be2e238395e6b63263be1ae6ced653", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdafff762d9ede4e8a540d99f40305f798be2e238395e6b63263be1ae6ced653", kill_on_drop: false }`
[INFO] [stdout] cdafff762d9ede4e8a540d99f40305f798be2e238395e6b63263be1ae6ced653
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] 44f1198a888d2896e376a0760d410312ed34337df99f63fd47aeb744840e2468
[INFO] running `Command { std: "docker" "start" "-a" "44f1198a888d2896e376a0760d410312ed34337df99f63fd47aeb744840e2468", kill_on_drop: false }`
[INFO] [stderr]    Compiling allehanda v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/recurse.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Go(Box<Fn() -> Rec<T>>)
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 3 -     Go(Box<Fn() -> Rec<T>>)
[INFO] [stdout] 3 +     Go(Box<dyn Fn() -> Rec<T>>)
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "44f1198a888d2896e376a0760d410312ed34337df99f63fd47aeb744840e2468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44f1198a888d2896e376a0760d410312ed34337df99f63fd47aeb744840e2468", kill_on_drop: false }`
[INFO] [stdout] 44f1198a888d2896e376a0760d410312ed34337df99f63fd47aeb744840e2468
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] 274730172f005b4845a48e9b3d9eda923e98e646a8e58a6eee6459582185a5fc
[INFO] running `Command { std: "docker" "start" "-a" "274730172f005b4845a48e9b3d9eda923e98e646a8e58a6eee6459582185a5fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling allehanda v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/recurse.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Go(Box<Fn() -> Rec<T>>)
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 3 -     Go(Box<Fn() -> Rec<T>>)
[INFO] [stdout] 3 +     Go(Box<dyn Fn() -> Rec<T>>)
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/graph.rs:87:10
[INFO] [stdout]    |
[INFO] [stdout] 87 |         };
[INFO] [stdout]    |          ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/recurse.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Go(Box<Fn() -> Rec<T>>)
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 3 -     Go(Box<Fn() -> Rec<T>>)
[INFO] [stdout] 3 +     Go(Box<dyn Fn() -> Rec<T>>)
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/allehanda-d7bf2051273f0aee)
[INFO] running `Command { std: "docker" "inspect" "274730172f005b4845a48e9b3d9eda923e98e646a8e58a6eee6459582185a5fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "274730172f005b4845a48e9b3d9eda923e98e646a8e58a6eee6459582185a5fc", kill_on_drop: false }`
[INFO] [stdout] 274730172f005b4845a48e9b3d9eda923e98e646a8e58a6eee6459582185a5fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] 7fa48365fbe734c3130382846a26cf8a908c853f2814deb67b06e6e6d99375d7
[INFO] running `Command { std: "docker" "start" "-a" "7fa48365fbe734c3130382846a26cf8a908c853f2814deb67b06e6e6d99375d7", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/recurse.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 |     Go(Box<Fn() -> Rec<T>>)
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 3 -     Go(Box<Fn() -> Rec<T>>)
[INFO] [stderr] 3 +     Go(Box<dyn Fn() -> Rec<T>>)
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: `allehanda` (lib) generated 1 warning
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/graph.rs:87:10
[INFO] [stderr]    |
[INFO] [stderr] 87 |         };
[INFO] [stderr]    |          ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `allehanda` (lib test) generated 2 warnings (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/allehanda-d7bf2051273f0aee)
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test collection::test ... ok
[INFO] [stdout] test graph::tests::test_adjacent ... ok
[INFO] [stdout] test graph::tests::test_edge_count ... ok
[INFO] [stdout] test graph::tests::test_vertex_count ... ok
[INFO] [stdout] test graph::tests::test_degree ... ok
[INFO] [stdout] test list::tests::test_collect ... ok
[INFO] [stdout] test knapsack::tests::test_knapsack ... ok
[INFO] [stdout] test list::tests::test_cons ... ok
[INFO] [stdout] test matrix::tests::test_creating_matrix ... ok
[INFO] [stdout] test matrix::tests::test_get_row ... ok
[INFO] [stdout] test matrix::tests::test_into_iterator ... ok
[INFO] [stdout] test matrix::tests::test_matrix_reverse_rows ... ok
[INFO] [stdout] test matrix::tests::test_rotate_ccw ... ok
[INFO] [stdout] test matrix::tests::test_rotate_cw ... ok
[INFO] [stdout] test matrix::tests::test_set_row ... ok
[INFO] [stdout] test matrix::tests::test_transpose ... ok
[INFO] [stdout] test matrix::tests::test_with_data_works_when_input_vec_len_matches_dimensions ... ok
[INFO] [stdout] test recurse::tests::test_factorial_with_rec ... ok
[INFO] [stdout] test recurse::tests::test_fib_with_rec ... ok
[INFO] [stdout] test matrix::tests::test_with_data_panics_on_length_mismatch_in_input_vec - should panic ... ok
[INFO] [stdout] test recurse::tests::test_rec_stack ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.17s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests allehanda
[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" "7fa48365fbe734c3130382846a26cf8a908c853f2814deb67b06e6e6d99375d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fa48365fbe734c3130382846a26cf8a908c853f2814deb67b06e6e6d99375d7", kill_on_drop: false }`
[INFO] [stdout] 7fa48365fbe734c3130382846a26cf8a908c853f2814deb67b06e6e6d99375d7