[INFO] cloning repository https://github.com/felipetavares/izkp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/felipetavares/izkp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffelipetavares%2Fizkp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffelipetavares%2Fizkp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d5906a7ff0e8b77d43e8d9dc1a359b46275c576d
[INFO] testing felipetavares/izkp against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffelipetavares%2Fizkp" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/felipetavares/izkp on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/felipetavares/izkp
[INFO] finished tweaking git repo https://github.com/felipetavares/izkp
[INFO] tweaked toml for git repo https://github.com/felipetavares/izkp written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/felipetavares/izkp 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" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] testing felipetavares/izkp against try#b642703cf9526da1e72c0b6755753b939a9c6b6d for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffelipetavares%2Fizkp" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/felipetavares/izkp on toolchain b642703cf9526da1e72c0b6755753b939a9c6b6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/felipetavares/izkp
[INFO] finished tweaking git repo https://github.com/felipetavares/izkp
[INFO] tweaked toml for git repo https://github.com/felipetavares/izkp written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/felipetavares/izkp 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" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4a38354d0f110ef9515b54094a8c595e12bffc7603980ea89ca2f18890b59a9
[INFO] running `Command { std: "docker" "start" "-a" "a4a38354d0f110ef9515b54094a8c595e12bffc7603980ea89ca2f18890b59a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4a38354d0f110ef9515b54094a8c595e12bffc7603980ea89ca2f18890b59a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4a38354d0f110ef9515b54094a8c595e12bffc7603980ea89ca2f18890b59a9", kill_on_drop: false }`
[INFO] [stdout] a4a38354d0f110ef9515b54094a8c595e12bffc7603980ea89ca2f18890b59a9
[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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3e710463ddc3ddcddcff8a21dcb8b01d63db83036680a3329e2cab2a067e628
[INFO] running `Command { std: "docker" "start" "-a" "d3e710463ddc3ddcddcff8a21dcb8b01d63db83036680a3329e2cab2a067e628", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling openssl v0.10.41
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling once_cell v1.14.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling openssl-sys v0.9.75
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling openssl-macros v0.1.0
[INFO] [stderr]    Compiling crypto-hash v0.3.4
[INFO] [stderr]    Compiling izkp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/graph.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |         for mut vertex in &mut random_g.vertices {
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.62s
[INFO] running `Command { std: "docker" "inspect" "d3e710463ddc3ddcddcff8a21dcb8b01d63db83036680a3329e2cab2a067e628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3e710463ddc3ddcddcff8a21dcb8b01d63db83036680a3329e2cab2a067e628", kill_on_drop: false }`
[INFO] [stdout] d3e710463ddc3ddcddcff8a21dcb8b01d63db83036680a3329e2cab2a067e628
[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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 997c6564be37f0c43730c24f95e4a8649a8a231d0709a8dd07f3da1e674ae141
[INFO] running `Command { std: "docker" "start" "-a" "997c6564be37f0c43730c24f95e4a8649a8a231d0709a8dd07f3da1e674ae141", kill_on_drop: false }`
[INFO] [stderr]    Compiling izkp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/graph.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |         for mut vertex in &mut random_g.vertices {
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "997c6564be37f0c43730c24f95e4a8649a8a231d0709a8dd07f3da1e674ae141", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "997c6564be37f0c43730c24f95e4a8649a8a231d0709a8dd07f3da1e674ae141", kill_on_drop: false }`
[INFO] [stdout] 997c6564be37f0c43730c24f95e4a8649a8a231d0709a8dd07f3da1e674ae141
[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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a55cf7cf0d3ddfb5ab79bb460c785bd416c236306634ed9d937172a650dce7f8
[INFO] running `Command { std: "docker" "start" "-a" "a55cf7cf0d3ddfb5ab79bb460c785bd416c236306634ed9d937172a650dce7f8", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/graph.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |         for mut vertex in &mut random_g.vertices {
[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: `izkp` (bin "izkp" test) generated 1 warning (run `cargo fix --bin "izkp" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/izkp-d51a8613bbe252cc)
[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] running `Command { std: "docker" "inspect" "a55cf7cf0d3ddfb5ab79bb460c785bd416c236306634ed9d937172a650dce7f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a55cf7cf0d3ddfb5ab79bb460c785bd416c236306634ed9d937172a650dce7f8", kill_on_drop: false }`
[INFO] [stdout] a55cf7cf0d3ddfb5ab79bb460c785bd416c236306634ed9d937172a650dce7f8