[INFO] fetching crate allehanda 0.1.4...
[INFO] testing allehanda-0.1.4 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate allehanda 0.1.4 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate allehanda 0.1.4 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 532238c527bd48fb166995b68580ce5438024f1050fdde46d701e3efd14f26aa
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "532238c527bd48fb166995b68580ce5438024f1050fdde46d701e3efd14f26aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "532238c527bd48fb166995b68580ce5438024f1050fdde46d701e3efd14f26aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "532238c527bd48fb166995b68580ce5438024f1050fdde46d701e3efd14f26aa", kill_on_drop: false }`
[INFO] [stdout] 532238c527bd48fb166995b68580ce5438024f1050fdde46d701e3efd14f26aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7c3db444cb9c762428e79db764c83b89177bd7f4471fd4dfd12c25e2c285828
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a7c3db444cb9c762428e79db764c83b89177bd7f4471fd4dfd12c25e2c285828", 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]   |            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> Rec<T>`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "a7c3db444cb9c762428e79db764c83b89177bd7f4471fd4dfd12c25e2c285828", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7c3db444cb9c762428e79db764c83b89177bd7f4471fd4dfd12c25e2c285828", kill_on_drop: false }`
[INFO] [stdout] a7c3db444cb9c762428e79db764c83b89177bd7f4471fd4dfd12c25e2c285828
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14e8ab3db222c8ce8ceba4c53477933a4187d6e02b10060cc3053aa1504b7aa7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "14e8ab3db222c8ce8ceba4c53477933a4187d6e02b10060cc3053aa1504b7aa7", 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]   |            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> Rec<T>`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]   |            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> Rec<T>`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `Command { std: "docker" "inspect" "14e8ab3db222c8ce8ceba4c53477933a4187d6e02b10060cc3053aa1504b7aa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14e8ab3db222c8ce8ceba4c53477933a4187d6e02b10060cc3053aa1504b7aa7", kill_on_drop: false }`
[INFO] [stdout] 14e8ab3db222c8ce8ceba4c53477933a4187d6e02b10060cc3053aa1504b7aa7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 13be052c967bc7597c32c5518f58e931766b63366eb3f4288a1aea5cc2bfb10b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "13be052c967bc7597c32c5518f58e931766b63366eb3f4288a1aea5cc2bfb10b", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 21 tests
[INFO] [stderr]  --> src/recurse.rs:3:12
[INFO] [stdout] test matrix::tests::test_rotate_ccw ... ok
[INFO] [stderr]   |
[INFO] [stdout] test matrix::tests::test_rotate_cw ... ok
[INFO] [stderr] 3 |     Go(Box<Fn() -> Rec<T>>)
[INFO] [stdout] test matrix::tests::test_matrix_reverse_rows ... ok
[INFO] [stderr]   |            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> Rec<T>`
[INFO] [stdout] test matrix::tests::test_set_row ... ok
[INFO] [stderr]   |
[INFO] [stdout] test matrix::tests::test_transpose ... ok
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] test matrix::tests::test_into_iterator ... ok
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout] test matrix::tests::test_get_row ... ok
[INFO] [stderr]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] test matrix::tests::test_creating_matrix ... ok
[INFO] [stderr] 
[INFO] [stdout] test matrix::tests::test_with_data_works_when_input_vec_len_matches_dimensions ... ok
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stdout] test graph::tests::test_adjacent ... ok
[INFO] [stderr] 
[INFO] [stdout] test graph::tests::test_vertex_count ... ok
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stdout] test list::tests::test_collect ... ok
[INFO] [stderr]   --> src/graph.rs:87:10
[INFO] [stdout] test recurse::tests::test_factorial_with_rec ... ok
[INFO] [stderr]    |
[INFO] [stdout] test recurse::tests::test_fib_with_rec ... ok
[INFO] [stderr] 87 |         };
[INFO] [stdout] test knapsack::tests::test_knapsack ... ok
[INFO] [stderr]    |          ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[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]   |            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> Rec<T>`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/allehanda-429a7647b9e52d98)
[INFO] [stdout] test graph::tests::test_edge_count ... ok
[INFO] [stdout] test graph::tests::test_degree ... ok
[INFO] [stdout] test list::tests::test_cons ... ok
[INFO] [stdout] test collection::test ... 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 0.39s
[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" "13be052c967bc7597c32c5518f58e931766b63366eb3f4288a1aea5cc2bfb10b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13be052c967bc7597c32c5518f58e931766b63366eb3f4288a1aea5cc2bfb10b", kill_on_drop: false }`
[INFO] [stdout] 13be052c967bc7597c32c5518f58e931766b63366eb3f4288a1aea5cc2bfb10b