[INFO] fetching crate udp_hole_punching 2.0.8...
[INFO] checking udp_hole_punching-2.0.8 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate udp_hole_punching 2.0.8 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate udp_hole_punching 2.0.8 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate udp_hole_punching 2.0.8
[INFO] finished tweaking crates.io crate udp_hole_punching 2.0.8
[INFO] tweaked toml for crates.io crate udp_hole_punching 2.0.8 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate udp_hole_punching 2.0.8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 781f08b229f8b41147e8d9f5c95375547145839fa9bc6127e65fffb539ee0f7e
[INFO] running `Command { std: "docker" "start" "-a" "781f08b229f8b41147e8d9f5c95375547145839fa9bc6127e65fffb539ee0f7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "781f08b229f8b41147e8d9f5c95375547145839fa9bc6127e65fffb539ee0f7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "781f08b229f8b41147e8d9f5c95375547145839fa9bc6127e65fffb539ee0f7e", kill_on_drop: false }`
[INFO] [stdout] 781f08b229f8b41147e8d9f5c95375547145839fa9bc6127e65fffb539ee0f7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a2aa1c387ac425edace4bdafe82339e3cc3b74980b7d37e2aa7420ae4fe9da8
[INFO] running `Command { std: "docker" "start" "-a" "5a2aa1c387ac425edace4bdafe82339e3cc3b74980b7d37e2aa7420ae4fe9da8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking smallvec v1.5.0
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking concurrent-queue v1.1.1
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking async-channel v1.1.1
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking futures-lite v0.1.8
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking blocking v0.4.7
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking sled v0.34.6
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking smol v0.1.18
[INFO] [stderr]     Checking async-std v1.6.2
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking udp_hole_punching v2.0.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lower`
[INFO] [stdout]   --> src/client/cache_send.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let lower = conf.min_retry_len ;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_lower`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `remainder`
[INFO] [stdout]    --> src/client/packet.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |     let remainder = task_total_len % real_capacity_len;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remainder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `times`
[INFO] [stdout]    --> src/client/packet.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let times = task_total_len / real_capacity_len;
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_times`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/client/listen.rs:35:21
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 Err(e) => {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `PeerAddress` should have an upper case name
[INFO] [stdout]  --> src/client/peer_address.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | static PeerAddress: Lazy<Mutex<String>> = Lazy::new(|| {
[INFO] [stdout]   |        ^^^^^^^^^^^ help: convert the identifier to upper case: `PEER_ADDRESS`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lower`
[INFO] [stdout]   --> src/client/cache_send.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let lower = conf.min_retry_len ;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_lower`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `remainder`
[INFO] [stdout]    --> src/client/packet.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |     let remainder = task_total_len % real_capacity_len;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remainder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `times`
[INFO] [stdout]    --> src/client/packet.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let times = task_total_len / real_capacity_len;
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_times`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/client/packets.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     for i in 0..2000{
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/client/packets.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let (u,mut pacs) = Packet::new_pacs_from_send_bytes(&v);
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/client/listen.rs:35:21
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 Err(e) => {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/client/packets.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let (u,mut pacs) = Packet::new_pacs_from_send_bytes(&v);
[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: unused `Result` that must be used
[INFO] [stdout]   --> src/client/cache_task.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     dbg!(c);
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `PeerAddress` should have an upper case name
[INFO] [stdout]  --> src/client/peer_address.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | static PeerAddress: Lazy<Mutex<String>> = Lazy::new(|| {
[INFO] [stdout]   |        ^^^^^^^^^^^ help: convert the identifier to upper case: `PEER_ADDRESS`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/bin.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/bin.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lower`
[INFO] [stdout]   --> src/client/cache_send.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let lower = conf.min_retry_len ;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_lower`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `remainder`
[INFO] [stdout]    --> src/client/packet.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |     let remainder = task_total_len % real_capacity_len;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remainder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `times`
[INFO] [stdout]    --> src/client/packet.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let times = task_total_len / real_capacity_len;
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_times`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/client/listen.rs:35:21
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 Err(e) => {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lower`
[INFO] [stdout]   --> src/client/cache_send.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let lower = conf.min_retry_len ;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_lower`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `remainder`
[INFO] [stdout]    --> src/client/packet.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |     let remainder = task_total_len % real_capacity_len;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remainder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `times`
[INFO] [stdout]    --> src/client/packet.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let times = task_total_len / real_capacity_len;
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_times`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/client/packets.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     for i in 0..2000{
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/client/packets.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let (u,mut pacs) = Packet::new_pacs_from_send_bytes(&v);
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/client/listen.rs:35:21
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 Err(e) => {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/client/packets.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let (u,mut pacs) = Packet::new_pacs_from_send_bytes(&v);
[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: static variable `PeerAddress` should have an upper case name
[INFO] [stdout]  --> src/client/peer_address.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | static PeerAddress: Lazy<Mutex<String>> = Lazy::new(|| {
[INFO] [stdout]   |        ^^^^^^^^^^^ help: convert the identifier to upper case: `PEER_ADDRESS`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/client/cache_task.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     dbg!(c);
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `PeerAddress` should have an upper case name
[INFO] [stdout]  --> src/client/peer_address.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | static PeerAddress: Lazy<Mutex<String>> = Lazy::new(|| {
[INFO] [stdout]   |        ^^^^^^^^^^^ help: convert the identifier to upper case: `PEER_ADDRESS`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.66s
[INFO] running `Command { std: "docker" "inspect" "5a2aa1c387ac425edace4bdafe82339e3cc3b74980b7d37e2aa7420ae4fe9da8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a2aa1c387ac425edace4bdafe82339e3cc3b74980b7d37e2aa7420ae4fe9da8", kill_on_drop: false }`
[INFO] [stdout] 5a2aa1c387ac425edace4bdafe82339e3cc3b74980b7d37e2aa7420ae4fe9da8