[INFO] fetching crate sized_matrix 0.1.0...
[INFO] checking sized_matrix-0.1.0 against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] extracting crate sized_matrix 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate sized_matrix 0.1.0 on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sized_matrix 0.1.0
[INFO] finished tweaking crates.io crate sized_matrix 0.1.0
[INFO] tweaked toml for crates.io crate sized_matrix 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74fdf90024d0def286cf4f1bc320a2e9202e0f9005c43c74fbd70c20ec7f5583
[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" "74fdf90024d0def286cf4f1bc320a2e9202e0f9005c43c74fbd70c20ec7f5583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74fdf90024d0def286cf4f1bc320a2e9202e0f9005c43c74fbd70c20ec7f5583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74fdf90024d0def286cf4f1bc320a2e9202e0f9005c43c74fbd70c20ec7f5583", kill_on_drop: false }`
[INFO] [stdout] 74fdf90024d0def286cf4f1bc320a2e9202e0f9005c43c74fbd70c20ec7f5583
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 94c141e040b890e28d601386fd1e8cab5eaa7c87a62da2cd6cf5ddae96559e03
[INFO] running `Command { std: "docker" "start" "-a" "94c141e040b890e28d601386fd1e8cab5eaa7c87a62da2cd6cf5ddae96559e03", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking semver-parser v0.9.0
[INFO] [stderr]     Checking init_trait v0.2.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking sized_matrix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]   --> src/lib.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | #![feature(const_generics)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]    = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/matrix.rs:125:22
[INFO] [stdout]     |
[INFO] [stdout] 125 |             contents: vectors.map(|v| {
[INFO] [stdout]     |                               ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `array_helpers::MapArray::map(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/matrix.rs:138:17
[INFO] [stdout]     |
[INFO] [stdout] 138 |         self.contents.map(|v| {
[INFO] [stdout]     |                       ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `array_helpers::MapArray::map(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking version-sync v0.9.1
[INFO] [stdout] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]   --> src/lib.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | #![feature(const_generics)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]    = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/matrix.rs:125:22
[INFO] [stdout]     |
[INFO] [stdout] 125 |             contents: vectors.map(|v| {
[INFO] [stdout]     |                               ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `array_helpers::MapArray::map(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/matrix.rs:138:17
[INFO] [stdout]     |
[INFO] [stdout] 138 |         self.contents.map(|v| {
[INFO] [stdout]     |                       ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `array_helpers::MapArray::map(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.80s
[INFO] running `Command { std: "docker" "inspect" "94c141e040b890e28d601386fd1e8cab5eaa7c87a62da2cd6cf5ddae96559e03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94c141e040b890e28d601386fd1e8cab5eaa7c87a62da2cd6cf5ddae96559e03", kill_on_drop: false }`
[INFO] [stdout] 94c141e040b890e28d601386fd1e8cab5eaa7c87a62da2cd6cf5ddae96559e03
