[INFO] cloning repository https://github.com/twentyone212121/parallel_processing_protocol
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/twentyone212121/parallel_processing_protocol" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwentyone212121%2Fparallel_processing_protocol", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwentyone212121%2Fparallel_processing_protocol'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0141e2dc4a350c48ebb9b9d96beda87dba9fec15
[INFO] checking twentyone212121/parallel_processing_protocol against try#81ab7f2139295590561adbe6d5b0aaa2feff765f for pr-146470-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwentyone212121%2Fparallel_processing_protocol" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/twentyone212121/parallel_processing_protocol
[INFO] finished tweaking git repo https://github.com/twentyone212121/parallel_processing_protocol
[INFO] tweaked toml for git repo https://github.com/twentyone212121/parallel_processing_protocol written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/twentyone212121/parallel_processing_protocol on toolchain 81ab7f2139295590561adbe6d5b0aaa2feff765f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/twentyone212121/parallel_processing_protocol already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3a6bbcad86a52e3df2f5e3bbcdc69813c7628410da784026662671e6fa8503b
[INFO] running `Command { std: "docker" "start" "-a" "d3a6bbcad86a52e3df2f5e3bbcdc69813c7628410da784026662671e6fa8503b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3a6bbcad86a52e3df2f5e3bbcdc69813c7628410da784026662671e6fa8503b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3a6bbcad86a52e3df2f5e3bbcdc69813c7628410da784026662671e6fa8503b", kill_on_drop: false }`
[INFO] [stdout] d3a6bbcad86a52e3df2f5e3bbcdc69813c7628410da784026662671e6fa8503b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76123ff197e24b5c5832dc9ce41d95c782855423bcdf5217ee55a06293860557
[INFO] running `Command { std: "docker" "start" "-a" "76123ff197e24b5c5832dc9ce41d95c782855423bcdf5217ee55a06293860557", kill_on_drop: false }`
[INFO] [stderr]     Checking lab4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/matrix.rs:96:18
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn split(&mut self, parts: usize) -> Vec<MatrixSlice> {
[INFO] [stdout]    |                  ^^^^^^^^^                       ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn split(&mut self, parts: usize) -> Vec<MatrixSlice<'_>> {
[INFO] [stdout]    |                                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/matrix.rs:96:18
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn split(&mut self, parts: usize) -> Vec<MatrixSlice> {
[INFO] [stdout]    |                  ^^^^^^^^^                       ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn split(&mut self, parts: usize) -> Vec<MatrixSlice<'_>> {
[INFO] [stdout]    |                                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/matrix.rs:96:18
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn split(&mut self, parts: usize) -> Vec<MatrixSlice> {
[INFO] [stdout]    |                  ^^^^^^^^^                       ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn split(&mut self, parts: usize) -> Vec<MatrixSlice<'_>> {
[INFO] [stdout]    |                                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/matrix.rs:96:18
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn split(&mut self, parts: usize) -> Vec<MatrixSlice> {
[INFO] [stdout]    |                  ^^^^^^^^^                       ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn split(&mut self, parts: usize) -> Vec<MatrixSlice<'_>> {
[INFO] [stdout]    |                                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "76123ff197e24b5c5832dc9ce41d95c782855423bcdf5217ee55a06293860557", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76123ff197e24b5c5832dc9ce41d95c782855423bcdf5217ee55a06293860557", kill_on_drop: false }`
[INFO] [stdout] 76123ff197e24b5c5832dc9ce41d95c782855423bcdf5217ee55a06293860557