[INFO] cloning repository https://github.com/skius/headlessmc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/skius/headlessmc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskius%2Fheadlessmc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskius%2Fheadlessmc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 288869abbe27206703290460993d968ae8e37f6d
[INFO] checking skius/headlessmc against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskius%2Fheadlessmc" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/skius/headlessmc on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/skius/headlessmc
[INFO] finished tweaking git repo https://github.com/skius/headlessmc
[INFO] tweaked toml for git repo https://github.com/skius/headlessmc written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/skius/headlessmc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/skius/jsonparse`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b819c8ec1872a938058850d2a164995555d92305db9a41c92213db759c47475e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b819c8ec1872a938058850d2a164995555d92305db9a41c92213db759c47475e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b819c8ec1872a938058850d2a164995555d92305db9a41c92213db759c47475e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b819c8ec1872a938058850d2a164995555d92305db9a41c92213db759c47475e", kill_on_drop: false }`
[INFO] [stdout] b819c8ec1872a938058850d2a164995555d92305db9a41c92213db759c47475e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cffd7b52c4460f255410465a811dfca3ffff3d837cb17d6ad131487f6f98d1f6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cffd7b52c4460f255410465a811dfca3ffff3d837cb17d6ad131487f6f98d1f6", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking jsonparse v0.1.0 (https://github.com/skius/jsonparse#069b9757)
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking flate2 v1.0.17
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking protocol v3.1.7
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]     Checking pancurses v0.16.1
[INFO] [stderr]    Compiling protocol-derive v3.1.7
[INFO] [stderr]     Checking headlessmc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::connection::packets::types::*`
[INFO] [stdout]  --> src/connection/packets/serverbound/status.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::connection::packets::types::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Parcel`, `Settings`, `hint::Hints`
[INFO] [stdout]  --> src/connection/packets/clientbound/play.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use protocol::{Parcel, Settings, hint::Hints};
[INFO] [stdout]   |                ^^^^^^  ^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read`, `Write`
[INFO] [stdout]  --> src/connection/packets/clientbound/play.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{Write, Read};
[INFO] [stdout]   |               ^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::connection::packets::types::*`
[INFO] [stdout]  --> src/connection/packets/serverbound/status.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::connection::packets::types::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Parcel`, `Settings`, `hint::Hints`
[INFO] [stdout]  --> src/connection/packets/clientbound/play.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use protocol::{Parcel, Settings, hint::Hints};
[INFO] [stdout]   |                ^^^^^^  ^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read`, `Write`
[INFO] [stdout]  --> src/connection/packets/clientbound/play.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{Write, Read};
[INFO] [stdout]   |               ^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `settings`
[INFO] [stdout]    --> src/connection/packets/types.rs:117:40
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn read_field(read: &mut dyn Read, settings: &Settings, hints: &mut Hints) -> Result<Self, protocol::Error> {
[INFO] [stdout]     |                                        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_settings`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hints`
[INFO] [stdout]    --> src/connection/packets/types.rs:117:61
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn read_field(read: &mut dyn Read, settings: &Settings, hints: &mut Hints) -> Result<Self, protocol::Error> {
[INFO] [stdout]     |                                                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_hints`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `settings`
[INFO] [stdout]    --> src/connection/packets/types.rs:139:50
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn write_field(&self, write: &mut dyn Write, settings: &Settings, hints: &mut Hints) -> Result<(), protocol::Error> {
[INFO] [stdout]     |                                                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_settings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hints`
[INFO] [stdout]    --> src/connection/packets/types.rs:139:71
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn write_field(&self, write: &mut dyn Write, settings: &Settings, hints: &mut Hints) -> Result<(), protocol::Error> {
[INFO] [stdout]     |                                                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_hints`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `settings`
[INFO] [stdout]    --> src/connection/packets/types.rs:117:40
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn read_field(read: &mut dyn Read, settings: &Settings, hints: &mut Hints) -> Result<Self, protocol::Error> {
[INFO] [stdout]     |                                        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_settings`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hints`
[INFO] [stdout]    --> src/connection/packets/types.rs:117:61
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn read_field(read: &mut dyn Read, settings: &Settings, hints: &mut Hints) -> Result<Self, protocol::Error> {
[INFO] [stdout]     |                                                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_hints`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `settings`
[INFO] [stdout]    --> src/connection/packets/types.rs:139:50
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn write_field(&self, write: &mut dyn Write, settings: &Settings, hints: &mut Hints) -> Result<(), protocol::Error> {
[INFO] [stdout]     |                                                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_settings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hints`
[INFO] [stdout]    --> src/connection/packets/types.rs:139:71
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn write_field(&self, write: &mut dyn Write, settings: &Settings, hints: &mut Hints) -> Result<(), protocol::Error> {
[INFO] [stdout]     |                                                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_hints`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serverbound::status::Request as RequestSb`
[INFO] [stdout]  --> examples/read_write_chat.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use serverbound::status::Request as RequestSb;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serverbound::status::Ping as PingSb`
[INFO] [stdout]  --> examples/read_write_chat.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use serverbound::status::Ping as PingSb;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> examples/read_write_chat.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |             std::io::stdin().read_line(&mut buffer);
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.10s
[INFO] running `Command { std: "docker" "inspect" "cffd7b52c4460f255410465a811dfca3ffff3d837cb17d6ad131487f6f98d1f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cffd7b52c4460f255410465a811dfca3ffff3d837cb17d6ad131487f6f98d1f6", kill_on_drop: false }`
[INFO] [stdout] cffd7b52c4460f255410465a811dfca3ffff3d837cb17d6ad131487f6f98d1f6