[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 1.54.0 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-16/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-16/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zolkko/rust-katas 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 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-16/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" "+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-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] 9e2eac1b88c69806f541ef3e4ba6494b09da097fc797e0d4d2c5f2a5ee6f1b12
[INFO] running `Command { std: "docker" "start" "-a" "9e2eac1b88c69806f541ef3e4ba6494b09da097fc797e0d4d2c5f2a5ee6f1b12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e2eac1b88c69806f541ef3e4ba6494b09da097fc797e0d4d2c5f2a5ee6f1b12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e2eac1b88c69806f541ef3e4ba6494b09da097fc797e0d4d2c5f2a5ee6f1b12", kill_on_drop: false }`
[INFO] [stdout] 9e2eac1b88c69806f541ef3e4ba6494b09da097fc797e0d4d2c5f2a5ee6f1b12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] 5ec461e48773797f008b216aa7b20be672ee1430475ca833f9f786c521bc7acd
[INFO] running `Command { std: "docker" "start" "-a" "5ec461e48773797f008b216aa7b20be672ee1430475ca833f9f786c521bc7acd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling futures-sink v0.3.16
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling futures-io v0.3.16
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling once_cell v1.8.0
[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 num-integer v0.1.44
[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 matrixmultiply v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling parking_lot v0.11.1
[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: 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: `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: `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: `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: 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 34.49s
[INFO] running `Command { std: "docker" "inspect" "5ec461e48773797f008b216aa7b20be672ee1430475ca833f9f786c521bc7acd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ec461e48773797f008b216aa7b20be672ee1430475ca833f9f786c521bc7acd", kill_on_drop: false }`
[INFO] [stdout] 5ec461e48773797f008b216aa7b20be672ee1430475ca833f9f786c521bc7acd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] 0ea78b26ad432d84ae6617ace8d36e849ec106346092925848707bec46a9d404
[INFO] running `Command { std: "docker" "start" "-a" "0ea78b26ad432d84ae6617ace8d36e849ec106346092925848707bec46a9d404", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-katas v0.1.0 (/opt/rustwide/workdir)
[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: 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: 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: `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: 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: 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] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.05s
[INFO] running `Command { std: "docker" "inspect" "0ea78b26ad432d84ae6617ace8d36e849ec106346092925848707bec46a9d404", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ea78b26ad432d84ae6617ace8d36e849ec106346092925848707bec46a9d404", kill_on_drop: false }`
[INFO] [stdout] 0ea78b26ad432d84ae6617ace8d36e849ec106346092925848707bec46a9d404
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] 04de58789521796be340c811c0bffcc3400cee798e5a68e7c63e3136a4279387
[INFO] running `Command { std: "docker" "start" "-a" "04de58789521796be340c811c0bffcc3400cee798e5a68e7c63e3136a4279387", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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: 5 warnings emitted
[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: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/async_book.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 |     let mut state = Arc::new(Mutex::new(SharedState { completed: false, waker: None }));
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/async_book.rs:78:9
[INFO] [stderr]    |
[INFO] [stderr] 78 |     let mut thread_state = Arc::clone(&state);
[INFO] [stderr]    |         ----^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[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: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.58s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_katas-4e8638d93b567db2)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test insertion_sort::tests::sort_empty_vector ... ok
[INFO] [stdout] test insertion_sort::tests::sort_mixed_vector ... ok
[INFO] [stdout] test insertion_sort::tests::sort_reverse_vector ... ok
[INFO] [stdout] test insertion_sort::tests::sort_single_element_vector ... ok
[INFO] [stdout] test insertion_sort::tests::sort_sorted_vector ... ok
[INFO] [stdout] test quick_sort::tests::sort_empty_vector ... ok
[INFO] [stdout] test quick_sort::tests::sort_mixed_vector ... ok
[INFO] [stdout] test quick_sort::tests::sort_reverse_vector ... ok
[INFO] [stdout] test quick_sort::tests::sort_single_element_vector ... ok
[INFO] [stdout] test quick_sort::tests::sort_sorted_vector ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/async_book-2fe6b24fb9c99e6a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/max_subarray-6a0e948e8973a999)
[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 8 tests
[INFO] [stdout] test test::it_can_find_sum_in_general_case ... ok
[INFO] [stdout] test test::it_contains_single_negative_number ... ok
[INFO] [stdout] test test::it_contains_only_zeros ... ok
[INFO] [stdout] test test::it_contains_single_positive_number ... ok
[INFO] [stdout] test test::it_contains_single_zero ... ok
[INFO] [stdout] test test::it_finds_sum_if_all_elements_are_negative ... ok
[INFO] [stdout] test test::it_finds_sum_if_all_elements_are_positive ... 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 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/poll_fn_stream-762d3f71e516f82c)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/read_ints-ca7cd3e2de381239)
[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:     0x563b339ec200 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x563b339ec200 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x563b339ec200 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x563b339ec200 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x563b33a0e9fc - core::fmt::write::h306731c068f7162c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x563b339e9125 - std::io::Write::write_fmt::h87f19b0a2cd190bc
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stdout]    6:     0x563b339ee36b - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x563b339ee36b - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x563b339ee36b - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x563b339ede7c - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x563b339eea34 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x563b339cd353 - std::panicking::begin_panic::{{closure}}::h3199e3afc4c39e00
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:542:9
[INFO] [stdout]   12:     0x563b339d05b9 - std::sys_common::backtrace::__rust_end_short_backtrace::h4caaa23883bbd91b
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x563b339cd289 - std::panicking::begin_panic::h7533a8505ddfa6d2
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:541:12
[INFO] [stdout]   14:     0x563b339909b0 - read_ints::tests::demo::h335936fcfacbfd04
[INFO] [stdout]                                at /opt/rustwide/workdir/src/read_ints.rs:47:9
[INFO] [stdout]   15:     0x563b3399037a - read_ints::tests::demo::{{closure}}::h2d72774ea7ab1514
[INFO] [stdout]                                at /opt/rustwide/workdir/src/read_ints.rs:26:5
[INFO] [stdout]   16:     0x563b3397f09e - core::ops::function::FnOnce::call_once::h0bc6c5e3212e5bd2
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   17:     0x563b339b8b63 - core::ops::function::FnOnce::call_once::h152e7e439ff59e19
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   18:     0x563b339b8b63 - test::__rust_begin_short_backtrace::h0908f3b1fdbb72ab
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:577:5
[INFO] [stdout]   19:     0x563b339b7620 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf6d2a51e5587546c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   20:     0x563b339b7620 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8af660f3a89ef593
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   21:     0x563b339b7620 - std::panicking::try::do_call::hd36aef60f84b6d36
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   22:     0x563b339b7620 - std::panicking::try::h9932b4480e69817c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   23:     0x563b339b7620 - std::panic::catch_unwind::h6aa177099cfff5f8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   24:     0x563b339b7620 - test::run_test_in_process::h5884d6f2d99e20c3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:600:18
[INFO] [stdout]   25:     0x563b339b7620 - test::run_test::run_test_inner::{{closure}}::h6fdc58c6d5f5b6e3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:492:39
[INFO] [stdout]   26:     0x563b33990cd2 - test::run_test::run_test_inner::{{closure}}::h408365d67a78ade8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:519:37
[INFO] [stdout]   27:     0x563b33990cd2 - std::sys_common::backtrace::__rust_begin_short_backtrace::hb560b77c4f701523
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   28:     0x563b33994888 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf2e7831dad93c597
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   29:     0x563b33994888 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd2e08783d8be4d02
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   30:     0x563b33994888 - std::panicking::try::do_call::h062597b7acfd6b82
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   31:     0x563b33994888 - std::panicking::try::h0d7b79db04c14552
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   32:     0x563b33994888 - std::panic::catch_unwind::hb01a0b5e7c8cd43b
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   33:     0x563b33994888 - std::thread::Builder::spawn_unchecked::{{closure}}::h5bde48cc887e0d1e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   34:     0x563b33994888 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h745ea30807a29e55
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   35:     0x563b339f34f7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7ece6cfefaff1005
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   36:     0x563b339f34f7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb8b48e55c21f193e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   37:     0x563b339f34f7 - std::sys::unix::thread::Thread::new::thread_start::h8c7c4450dba62914
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   38:     0x7f6df67b4609 - start_thread
[INFO] [stdout]   39:     0x7f6df6586293 - 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" "04de58789521796be340c811c0bffcc3400cee798e5a68e7c63e3136a4279387", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04de58789521796be340c811c0bffcc3400cee798e5a68e7c63e3136a4279387", kill_on_drop: false }`
[INFO] [stdout] 04de58789521796be340c811c0bffcc3400cee798e5a68e7c63e3136a4279387
