[INFO] cloning repository https://github.com/j-roark/throughput
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/j-roark/throughput" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj-roark%2Fthroughput", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj-roark%2Fthroughput'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f6bca8d96a23abf77f0eba4c331f5e38e8955e49
[INFO] checking j-roark/throughput against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj-roark%2Fthroughput" "/workspace/builds/worker-116/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-116/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/j-roark/throughput on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/j-roark/throughput
[INFO] finished tweaking git repo https://github.com/j-roark/throughput
[INFO] tweaked toml for git repo https://github.com/j-roark/throughput written to /workspace/builds/worker-116/source/Cargo.toml
[INFO] crate git repo https://github.com/j-roark/throughput already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--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-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 002d00433531d58523f9cef142e782b1b10523a1e05d61125aa808d423933f44
[INFO] running `Command { std: "docker" "start" "-a" "002d00433531d58523f9cef142e782b1b10523a1e05d61125aa808d423933f44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "002d00433531d58523f9cef142e782b1b10523a1e05d61125aa808d423933f44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "002d00433531d58523f9cef142e782b1b10523a1e05d61125aa808d423933f44", kill_on_drop: false }`
[INFO] [stdout] 002d00433531d58523f9cef142e782b1b10523a1e05d61125aa808d423933f44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ed6c1e80e843eba386a631d8aad77890f821a48db2808fb94a1c22bb87dc6d4
[INFO] running `Command { std: "docker" "start" "-a" "1ed6c1e80e843eba386a631d8aad77890f821a48db2808fb94a1c22bb87dc6d4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling getrandom v0.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.1
[INFO] [stderr]     Checking throughput v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `speed` is assigned to, but never used
[INFO] [stdout]    --> src/throughput.rs:514:11
[INFO] [stdout]     |
[INFO] [stdout] 514 |         let mut speed = 0i32;
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_speed` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `speed` is never read
[INFO] [stdout]    --> src/throughput.rs:546:6
[INFO] [stdout]     |
[INFO] [stdout] 546 |                     speed = {
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `speed` is assigned to, but never used
[INFO] [stdout]    --> src/throughput.rs:514:11
[INFO] [stdout]     |
[INFO] [stdout] 514 |         let mut speed = 0i32;
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_speed` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Dropped`
[INFO] [stdout]   --> src/throughput.rs:52:27
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub enum PacketType { Ok, Dropped, Jittered }
[INFO] [stdout]    |                           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `init_time`
[INFO] [stdout]    --> src/throughput.rs:161:2
[INFO] [stdout]     |
[INFO] [stdout] 161 |     init_time: SystemTime,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `speed` is never read
[INFO] [stdout]    --> src/throughput.rs:546:6
[INFO] [stdout]     |
[INFO] [stdout] 546 |                     speed = {
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Dropped`
[INFO] [stdout]   --> src/throughput.rs:52:27
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub enum PacketType { Ok, Dropped, Jittered }
[INFO] [stdout]    |                           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `init_time`
[INFO] [stdout]    --> src/throughput.rs:161:2
[INFO] [stdout]     |
[INFO] [stdout] 161 |     init_time: SystemTime,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 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 37.89s
[INFO] running `Command { std: "docker" "inspect" "1ed6c1e80e843eba386a631d8aad77890f821a48db2808fb94a1c22bb87dc6d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ed6c1e80e843eba386a631d8aad77890f821a48db2808fb94a1c22bb87dc6d4", kill_on_drop: false }`
[INFO] [stdout] 1ed6c1e80e843eba386a631d8aad77890f821a48db2808fb94a1c22bb87dc6d4