[INFO] cloning repository https://github.com/EntilZha/max_flow
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/EntilZha/max_flow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEntilZha%2Fmax_flow", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEntilZha%2Fmax_flow'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ba94fb03729150061748a3b2a4d43c81fe5dc153
[INFO] checking EntilZha/max_flow against try#c05ee43175e02d208faed1fcc0f436c56e48bba6 for pr-92413
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEntilZha%2Fmax_flow" "/workspace/builds/worker-50/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-50/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/EntilZha/max_flow on toolchain c05ee43175e02d208faed1fcc0f436c56e48bba6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/EntilZha/max_flow
[INFO] finished tweaking git repo https://github.com/EntilZha/max_flow
[INFO] tweaked toml for git repo https://github.com/EntilZha/max_flow written to /workspace/builds/worker-50/source/Cargo.toml
[INFO] crate git repo https://github.com/EntilZha/max_flow already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "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 time v0.1.35
[INFO] [stderr]   Downloaded libc v0.2.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8442cb650b32496d8508ab82de1d37b079b2e3ae46577d526a99772a8beee634
[INFO] running `Command { std: "docker" "start" "-a" "8442cb650b32496d8508ab82de1d37b079b2e3ae46577d526a99772a8beee634", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8442cb650b32496d8508ab82de1d37b079b2e3ae46577d526a99772a8beee634", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8442cb650b32496d8508ab82de1d37b079b2e3ae46577d526a99772a8beee634", kill_on_drop: false }`
[INFO] [stdout] 8442cb650b32496d8508ab82de1d37b079b2e3ae46577d526a99772a8beee634
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 224083c15f3f67490ea303a2eebc719d102a5ff8cfb28c61d0b4503d5a6b34bf
[INFO] running `Command { std: "docker" "start" "-a" "224083c15f3f67490ea303a2eebc719d102a5ff8cfb28c61d0b4503d5a6b34bf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.6
[INFO] [stderr]     Checking libc v0.2.9
[INFO] [stderr]    Compiling kernel32-sys v0.2.1
[INFO] [stderr]     Checking time v0.1.35
[INFO] [stderr]     Checking max_flow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: lifetime parameter `'a` never used
[INFO] [stdout]    --> src/lib.rs:140:6
[INFO] [stdout]     |
[INFO] [stdout] 140 | impl<'a, E: Property> Graph<E> {
[INFO] [stdout]     |      ^^--
[INFO] [stdout]     |      |
[INFO] [stdout]     |      help: elide the unused lifetime
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(unused_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: lifetime parameter `'a` never used
[INFO] [stdout]    --> src/lib.rs:211:6
[INFO] [stdout]     |
[INFO] [stdout] 211 | impl<'a> FlowGraph for Graph<FlowEdge> {
[INFO] [stdout]     |     -^^- help: elide the unused lifetime
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: lifetime parameter `'a` never used
[INFO] [stdout]    --> src/lib.rs:403:19
[INFO] [stdout]     |
[INFO] [stdout] 403 | fn flow_predicate<'a>(edge: FlowEdge) -> bool {
[INFO] [stdout]     |                  -^^- help: elide the unused lifetime
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: lifetime parameter `'a` never used
[INFO] [stdout]    --> src/lib.rs:140:6
[INFO] [stdout]     |
[INFO] [stdout] 140 | impl<'a, E: Property> Graph<E> {
[INFO] [stdout]     |      ^^--
[INFO] [stdout]     |      |
[INFO] [stdout]     |      help: elide the unused lifetime
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(unused_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: lifetime parameter `'a` never used
[INFO] [stdout]    --> src/lib.rs:211:6
[INFO] [stdout]     |
[INFO] [stdout] 211 | impl<'a> FlowGraph for Graph<FlowEdge> {
[INFO] [stdout]     |     -^^- help: elide the unused lifetime
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: lifetime parameter `'a` never used
[INFO] [stdout]    --> src/lib.rs:403:19
[INFO] [stdout]     |
[INFO] [stdout] 403 | fn flow_predicate<'a>(edge: FlowEdge) -> bool {
[INFO] [stdout]     |                  -^^- help: elide the unused lifetime
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `max_flow` due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "224083c15f3f67490ea303a2eebc719d102a5ff8cfb28c61d0b4503d5a6b34bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "224083c15f3f67490ea303a2eebc719d102a5ff8cfb28c61d0b4503d5a6b34bf", kill_on_drop: false }`
[INFO] [stdout] 224083c15f3f67490ea303a2eebc719d102a5ff8cfb28c61d0b4503d5a6b34bf