[INFO] fetching crate matrixnum 0.1.0...
[INFO] checking matrixnum-0.1.0 against try#99a443d6903f71d521237d8acb5a3016b534d17b for pr-83354
[INFO] extracting crate matrixnum 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate matrixnum 0.1.0 on toolchain 99a443d6903f71d521237d8acb5a3016b534d17b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate matrixnum 0.1.0
[INFO] finished tweaking crates.io crate matrixnum 0.1.0
[INFO] tweaked toml for crates.io crate matrixnum 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert_approx_eq v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8b17ce0c5305e4cf9b04e4f5c5db4cd7d7d249da7c99ded5ce0c7877c5d640b
[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" "f8b17ce0c5305e4cf9b04e4f5c5db4cd7d7d249da7c99ded5ce0c7877c5d640b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8b17ce0c5305e4cf9b04e4f5c5db4cd7d7d249da7c99ded5ce0c7877c5d640b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8b17ce0c5305e4cf9b04e4f5c5db4cd7d7d249da7c99ded5ce0c7877c5d640b", kill_on_drop: false }`
[INFO] [stdout] f8b17ce0c5305e4cf9b04e4f5c5db4cd7d7d249da7c99ded5ce0c7877c5d640b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bfed9d12ba1a9cd14670a7aa15301d27c99dc39e3841ad87a7eb0c7ccbc32f9
[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" "4bfed9d12ba1a9cd14670a7aa15301d27c99dc39e3841ad87a7eb0c7ccbc32f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking matrixnum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.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: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/matrix_trait.rs:8:41
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> Self;
[INFO] [stdout]   |                                         ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize) -> f64`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matrix_trait.rs:15:23
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn map(&self, f: &Fn(f64) -> f64) -> Self;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/basic.rs:23:41
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> BasicMatrix {
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize) -> f64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/basic.rs:104:23
[INFO] [stdout]     |
[INFO] [stdout] 104 |     fn map(&self, f: &Fn(f64) -> f64) -> BasicMatrix {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/matrix_trait.rs:8:41
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> Self;
[INFO] [stdout]   |                                         ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize) -> f64`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matrix_trait.rs:15:23
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn map(&self, f: &Fn(f64) -> f64) -> Self;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/basic.rs:23:41
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> BasicMatrix {
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize) -> f64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/basic.rs:104:23
[INFO] [stdout]     |
[INFO] [stdout] 104 |     fn map(&self, f: &Fn(f64) -> f64) -> BasicMatrix {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.43s
[INFO] running `Command { std: "docker" "inspect" "4bfed9d12ba1a9cd14670a7aa15301d27c99dc39e3841ad87a7eb0c7ccbc32f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bfed9d12ba1a9cd14670a7aa15301d27c99dc39e3841ad87a7eb0c7ccbc32f9", kill_on_drop: false }`
[INFO] [stdout] 4bfed9d12ba1a9cd14670a7aa15301d27c99dc39e3841ad87a7eb0c7ccbc32f9