[INFO] cloning repository https://github.com/zolkko/rust-katas
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zolkko/rust-katas" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzolkko%2Frust-katas", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzolkko%2Frust-katas'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 68676fc622353634503c404bb690ddbea4039fdb
[INFO] testing zolkko/rust-katas against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzolkko%2Frust-katas" "/workspace/builds/worker-32/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-32/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zolkko/rust-katas on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zolkko/rust-katas
[INFO] finished tweaking git repo https://github.com/zolkko/rust-katas
[INFO] tweaked toml for git repo https://github.com/zolkko/rust-katas written to /workspace/builds/worker-32/source/Cargo.toml
[INFO] crate git repo https://github.com/zolkko/rust-katas already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.3
[INFO] [stderr]   Downloaded ndarray v0.15.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61b85a74bec7bc6cfb6b3a8771e264f540fe4a2ec5108b6bc6fb139ae07bc484
[INFO] running `Command { std: "docker" "start" "-a" "61b85a74bec7bc6cfb6b3a8771e264f540fe4a2ec5108b6bc6fb139ae07bc484", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61b85a74bec7bc6cfb6b3a8771e264f540fe4a2ec5108b6bc6fb139ae07bc484", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61b85a74bec7bc6cfb6b3a8771e264f540fe4a2ec5108b6bc6fb139ae07bc484", kill_on_drop: false }`
[INFO] [stdout] 61b85a74bec7bc6cfb6b3a8771e264f540fe4a2ec5108b6bc6fb139ae07bc484
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 760b38fa6e58e6352f2bab9a1685cea07cd3e0974658df5315759ac375520ebb
[INFO] running `Command { std: "docker" "start" "-a" "760b38fa6e58e6352f2bab9a1685cea07cd3e0974658df5315759ac375520ebb", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling futures-sink v0.3.16
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling futures-io v0.3.16
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling rust-katas v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling matrixmultiply v0.3.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling ndarray v0.15.3
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling futures-executor v0.3.16
[INFO] [stderr]    Compiling futures v0.3.16
[INFO] [stderr]    Compiling tokio-util v0.6.7
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/read_ints.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryFutureExt`
[INFO] [stdout]  --> src/watch_file.rs:5:48
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::future::{self, Either, FutureExt, TryFutureExt};
[INFO] [stdout]   |                                                ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Context`
[INFO] [stdout]   --> src/watch_file.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::task::{Context, Poll};
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]  --> src/read_ints.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let input = line.trim_right();
[INFO] [stdout]   |                      ^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryFutureExt`
[INFO] [stdout]  --> src/poll_fn_stream.rs:5:40
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::future::{self, FutureExt, TryFutureExt};
[INFO] [stdout]   |                                        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::pin::Pin`
[INFO] [stdout]  --> src/poll_fn_stream.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::pin::Pin;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Context`
[INFO] [stdout]   --> src/poll_fn_stream.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::task::{Context, Poll};
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::fs::File`
[INFO] [stdout]   --> src/poll_fn_stream.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use tokio::fs::File;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/async_book.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let mut state = Arc::new(Mutex::new(SharedState { completed: false, waker: None }));
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/async_book.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let mut thread_state = Arc::clone(&state);
[INFO] [stdout]    |         ----^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryStreamExt`
[INFO] [stdout]  --> src/watch_file.rs:6:48
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::stream::{self, Stream, StreamExt, TryStreamExt};
[INFO] [stdout]   |                                                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryStreamExt`
[INFO] [stdout]  --> src/poll_fn_stream.rs:6:48
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::stream::{self, Stream, StreamExt, TryStreamExt};
[INFO] [stdout]   |                                                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.32s
[INFO] running `Command { std: "docker" "inspect" "760b38fa6e58e6352f2bab9a1685cea07cd3e0974658df5315759ac375520ebb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "760b38fa6e58e6352f2bab9a1685cea07cd3e0974658df5315759ac375520ebb", kill_on_drop: false }`
[INFO] [stdout] 760b38fa6e58e6352f2bab9a1685cea07cd3e0974658df5315759ac375520ebb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d740ee624c2be3e4b693c6da34165d51e38f0550aafb23de275be5628733a242
[INFO] running `Command { std: "docker" "start" "-a" "d740ee624c2be3e4b693c6da34165d51e38f0550aafb23de275be5628733a242", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-katas v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `TryFutureExt`
[INFO] [stdout]  --> src/watch_file.rs:5:48
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::future::{self, Either, FutureExt, TryFutureExt};
[INFO] [stdout]   |                                                ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Context`
[INFO] [stdout]   --> src/watch_file.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::task::{Context, Poll};
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryFutureExt`
[INFO] [stdout]  --> src/poll_fn_stream.rs:5:40
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::future::{self, FutureExt, TryFutureExt};
[INFO] [stdout]   |                                        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::pin::Pin`
[INFO] [stdout]  --> src/poll_fn_stream.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::pin::Pin;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Context`
[INFO] [stdout]   --> src/poll_fn_stream.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::task::{Context, Poll};
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::fs::File`
[INFO] [stdout]   --> src/poll_fn_stream.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use tokio::fs::File;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/read_ints.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ndarray::ShapeBuilder`
[INFO] [stdout]   --> src/read_ints.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     use ndarray::ShapeBuilder;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/async_book.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let mut state = Arc::new(Mutex::new(SharedState { completed: false, waker: None }));
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/async_book.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let mut thread_state = Arc::clone(&state);
[INFO] [stdout]    |         ----^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]  --> src/read_ints.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let input = line.trim_right();
[INFO] [stdout]   |                      ^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/read_ints.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         for mut sub_levels in a.axis_iter_mut(Axis(0)) {
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryStreamExt`
[INFO] [stdout]  --> src/poll_fn_stream.rs:6:48
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::stream::{self, Stream, StreamExt, TryStreamExt};
[INFO] [stdout]   |                                                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryStreamExt`
[INFO] [stdout]  --> src/watch_file.rs:6:48
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::stream::{self, Stream, StreamExt, TryStreamExt};
[INFO] [stdout]   |                                                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `Command { std: "docker" "inspect" "d740ee624c2be3e4b693c6da34165d51e38f0550aafb23de275be5628733a242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d740ee624c2be3e4b693c6da34165d51e38f0550aafb23de275be5628733a242", kill_on_drop: false }`
[INFO] [stdout] d740ee624c2be3e4b693c6da34165d51e38f0550aafb23de275be5628733a242
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c0462e2b7f8b5d6dfc934f2643fd3b5643e76a1329789dc728d42e6d872ed292
[INFO] running `Command { std: "docker" "start" "-a" "c0462e2b7f8b5d6dfc934f2643fd3b5643e76a1329789dc728d42e6d872ed292", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stdout] running 10 tests
[INFO] [stderr]   --> src/async_book.rs:77:9
[INFO] [stdout] test insertion_sort::tests::sort_reverse_vector ... ok
[INFO] [stderr]    |
[INFO] [stdout] test quick_sort::tests::sort_single_element_vector ... ok
[INFO] [stderr] 77 |     let mut state = Arc::new(Mutex::new(SharedState { completed: false, waker: None }));
[INFO] [stdout] test insertion_sort::tests::sort_empty_vector ... ok
[INFO] [stderr]    |         ----^^^^^
[INFO] [stdout] test insertion_sort::tests::sort_sorted_vector ... ok
[INFO] [stderr]    |         |
[INFO] [stdout] test quick_sort::tests::sort_sorted_vector ... ok
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stdout] test insertion_sort::tests::sort_single_element_vector ... ok
[INFO] [stderr]    |
[INFO] [stdout] test quick_sort::tests::sort_reverse_vector ... ok
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] test insertion_sort::tests::sort_mixed_vector ... ok
[INFO] [stderr] 
[INFO] [stdout] test quick_sort::tests::sort_empty_vector ... ok
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stdout] test quick_sort::tests::sort_mixed_vector ... ok
[INFO] [stderr]   --> src/async_book.rs:78:9
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stderr] 78 |     let mut thread_state = Arc::clone(&state);
[INFO] [stdout] 
[INFO] [stderr]    |         ----^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/read_ints.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ndarray::ShapeBuilder`
[INFO] [stderr]   --> src/read_ints.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     use ndarray::ShapeBuilder;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stderr]  --> src/read_ints.rs:9:22
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let input = line.trim_right();
[INFO] [stderr]   |                      ^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/read_ints.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         for mut sub_levels in a.axis_iter_mut(Axis(0)) {
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TryFutureExt`
[INFO] [stderr]  --> src/poll_fn_stream.rs:5:40
[INFO] [stderr]   |
[INFO] [stderr] 5 | use futures::future::{self, FutureExt, TryFutureExt};
[INFO] [stderr]   |                                        ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::pin::Pin`
[INFO] [stderr]  --> src/poll_fn_stream.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::pin::Pin;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Context`
[INFO] [stderr]   --> src/poll_fn_stream.rs:10:17
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::task::{Context, Poll};
[INFO] [stderr]    |                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tokio::fs::File`
[INFO] [stderr]   --> src/poll_fn_stream.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use tokio::fs::File;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TryStreamExt`
[INFO] [stderr]  --> src/poll_fn_stream.rs:6:48
[INFO] [stderr]   |
[INFO] [stderr] 6 | use futures::stream::{self, Stream, StreamExt, TryStreamExt};
[INFO] [stderr]   |                                                ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TryFutureExt`
[INFO] [stderr]  --> src/watch_file.rs:5:48
[INFO] [stderr]   |
[INFO] [stderr] 5 | use futures::future::{self, Either, FutureExt, TryFutureExt};
[INFO] [stderr]   |                                                ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Context`
[INFO] [stderr]   --> src/watch_file.rs:10:17
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::task::{Context, Poll};
[INFO] [stderr]    |                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TryStreamExt`
[INFO] [stderr]  --> src/watch_file.rs:6:48
[INFO] [stderr]   |
[INFO] [stderr] 6 | use futures::stream::{self, Stream, StreamExt, TryStreamExt};
[INFO] [stderr]   |                                                ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-katas` (bin "async_book" test) generated 2 warnings
[INFO] [stderr] warning: `rust-katas` (bin "read_ints" test) generated 4 warnings
[INFO] [stderr] warning: `rust-katas` (bin "poll_fn_stream" test) generated 5 warnings
[INFO] [stderr] warning: `rust-katas` (bin "watch_file" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_katas-932a4798a9604e73)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/async_book-425c4046a0567030)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/max_subarray-a2c8bff057c60085)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/poll_fn_stream-f733220e7859ebe9)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/read_ints-3768313b8a89c63d)
[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 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test::it_can_find_sum_in_general_case ... ok
[INFO] [stdout] test test::it_contains_single_positive_number ... ok
[INFO] [stdout] test test::it_finds_sum_if_all_elements_are_positive ... ok
[INFO] [stdout] test test::it_contains_single_zero ... ok
[INFO] [stdout] test test::it_contains_only_zeros ... ok
[INFO] [stdout] test test::it_contains_single_negative_number ... ok
[INFO] [stdout] test test::it_finds_sum_if_all_elements_are_negative ... ok
[INFO] [stdout] test test::it_returns_zero_on_empty_array ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::demo ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::demo stdout ----
[INFO] [stdout] [[2.0, 0.0],
[INFO] [stdout]  [0.0, 0.0]], shape=[2, 2], strides=[2, 1], layout=Cc (0x5), dynamic ndim=2
[INFO] [stdout] sum:2.0
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] [[0.0, 0.0],
[INFO] [stdout]  [3.0, 0.0]], shape=[2, 2], strides=[2, 1], layout=Cc (0x5), dynamic ndim=2
[INFO] [stdout] sum:3.0
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] [[7.0, 0.0],
[INFO] [stdout]  [0.0, 7.0]], shape=[2, 2], strides=[2, 1], layout=Cc (0x5), dynamic ndim=2
[INFO] [stdout] sum:14.0
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] +++++++++++
[INFO] [stdout] thread 'tests::demo' panicked at 'explicit panic', src/read_ints.rs:47:9
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x556b8a82a5e0 - std::backtrace_rs::backtrace::libunwind::trace::hff4d1766e93f64f1
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x556b8a82a5e0 - std::backtrace_rs::backtrace::trace_unsynchronized::h56bbc8eb78770bcb
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x556b8a82a5e0 - std::sys_common::backtrace::_print_fmt::h5c8e75464faca780
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x556b8a82a5e0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h48b88277def8b362
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x556b8a84cdac - core::fmt::write::h3381b3176fe2b3d3
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/fmt/mod.rs:1115:17
[INFO] [stdout]    5:     0x556b8a827545 - std::io::Write::write_fmt::h5f34a676f60246b5
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/io/mod.rs:1665:15
[INFO] [stdout]    6:     0x556b8a82c75b - std::sys_common::backtrace::_print::ha537687d6c17dd0d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x556b8a82c75b - std::sys_common::backtrace::print::h61376ae57d131d72
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x556b8a82c75b - std::panicking::default_hook::{{closure}}::h0f7208c0b9644a54
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x556b8a82c26c - std::panicking::default_hook::hdac7fc06578c14ce
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x556b8a82ce24 - std::panicking::rust_panic_with_hook::h72b21c283da3d1ef
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x556b8a80b703 - std::panicking::begin_panic::{{closure}}::h74b7c91f0adc48ed
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:542:9
[INFO] [stdout]   12:     0x556b8a80b589 - std::sys_common::backtrace::__rust_end_short_backtrace::h486c65d9b1b30730
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x556b8a80b639 - std::panicking::begin_panic::h6181f787499c169e
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:541:12
[INFO] [stdout]   14:     0x556b8a7bd5f0 - read_ints::tests::demo::h196db03051ac786f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/read_ints.rs:47:9
[INFO] [stdout]   15:     0x556b8a7bcfba - read_ints::tests::demo::{{closure}}::he520f21886269e9a
[INFO] [stdout]                                at /opt/rustwide/workdir/src/read_ints.rs:26:5
[INFO] [stdout]   16:     0x556b8a7c759e - core::ops::function::FnOnce::call_once::h52c2f28e4c526a0b
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   17:     0x556b8a804563 - core::ops::function::FnOnce::call_once::hbb52c4519d3137b0
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   18:     0x556b8a804563 - test::__rust_begin_short_backtrace::h86fe3a2a5a5121af
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:578:5
[INFO] [stdout]   19:     0x556b8a803018 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hfd956bc3d57399be
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   20:     0x556b8a803018 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h40dc93e0ddb5938a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:347:9
[INFO] [stdout]   21:     0x556b8a803018 - std::panicking::try::do_call::h90d07750cb47c562
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:401:40
[INFO] [stdout]   22:     0x556b8a803018 - std::panicking::try::h063c84733ad2a629
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:365:19
[INFO] [stdout]   23:     0x556b8a803018 - std::panic::catch_unwind::h0c464836a84e7c08
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:434:14
[INFO] [stdout]   24:     0x556b8a803018 - test::run_test_in_process::h5cb06ef620b157fc
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:601:18
[INFO] [stdout]   25:     0x556b8a803018 - test::run_test::run_test_inner::{{closure}}::h76f677f4b93f9828
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:493:39
[INFO] [stdout]   26:     0x556b8a7d17ad - test::run_test::run_test_inner::{{closure}}::h366d01fe04f4d67a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:520:37
[INFO] [stdout]   27:     0x556b8a7d17ad - std::sys_common::backtrace::__rust_begin_short_backtrace::h7dfa0de4eb395af2
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   28:     0x556b8a7d5f78 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf0a74bb58798037f
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/thread/mod.rs:476:17
[INFO] [stdout]   29:     0x556b8a7d5f78 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb024e854818586ac
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:347:9
[INFO] [stdout]   30:     0x556b8a7d5f78 - std::panicking::try::do_call::hb2dd9f1d0d48e41d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:401:40
[INFO] [stdout]   31:     0x556b8a7d5f78 - std::panicking::try::h4717ae7bac8b2bf3
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:365:19
[INFO] [stdout]   32:     0x556b8a7d5f78 - std::panic::catch_unwind::h0dc8a061326ce8d8
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:434:14
[INFO] [stdout]   33:     0x556b8a7d5f78 - std::thread::Builder::spawn_unchecked::{{closure}}::haa369e2d6fd00aa1
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/thread/mod.rs:475:30
[INFO] [stdout]   34:     0x556b8a7d5f78 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h36dcf3de8b056f17
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   35:     0x556b8a831997 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h65c29e4642be2358
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   36:     0x556b8a831997 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd0f8f7fbbd9fffbf
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   37:     0x556b8a831997 - std::sys::unix::thread::Thread::new::thread_start::h2fd22fee3ca77b65
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys/unix/thread.rs:74:17
[INFO] [stdout]   38:     0x7fd5bcc7d609 - start_thread
[INFO] [stdout]   39:     0x7fd5bca4f293 - clone
[INFO] [stdout]   40:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::demo
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--bin read_ints'
[INFO] running `Command { std: "docker" "inspect" "c0462e2b7f8b5d6dfc934f2643fd3b5643e76a1329789dc728d42e6d872ed292", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0462e2b7f8b5d6dfc934f2643fd3b5643e76a1329789dc728d42e6d872ed292", kill_on_drop: false }`
[INFO] [stdout] c0462e2b7f8b5d6dfc934f2643fd3b5643e76a1329789dc728d42e6d872ed292
