[INFO] crate minecraft-protocol 0.1.0 is already in cache
[INFO] checking minecraft-protocol-0.1.0 against try#879b8cb7dc2ad9102994457e73cf78d124926ea5 for pr-73084
[INFO] extracting crate minecraft-protocol 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate minecraft-protocol 0.1.0 on toolchain 879b8cb7dc2ad9102994457e73cf78d124926ea5
[INFO] running `"/workspace/cargo-home/bin/cargo" "+879b8cb7dc2ad9102994457e73cf78d124926ea5" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate minecraft-protocol 0.1.0
[INFO] finished tweaking crates.io crate minecraft-protocol 0.1.0
[INFO] tweaked toml for crates.io crate minecraft-protocol 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+879b8cb7dc2ad9102994457e73cf78d124926ea5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+879b8cb7dc2ad9102994457e73cf78d124926ea5" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+879b8cb7dc2ad9102994457e73cf78d124926ea5" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 520908ae0d4060bdcbc019e1ad1dc22a2c3ecc64b5a14b755d56ac9c20a2601e
[INFO] running `"docker" "start" "-a" "520908ae0d4060bdcbc019e1ad1dc22a2c3ecc64b5a14b755d56ac9c20a2601e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking named-binary-tag v0.2.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling minecraft-protocol-derive v0.0.0
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking minecraft-protocol v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Cursor`
[INFO] [stderr]  --> src/lib.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::io::{Cursor, Read, Write};
[INFO] [stderr]   |               ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `encode`
[INFO] [stderr]    --> src/lib.rs:569:12
[INFO] [stderr]     |
[INFO] [stderr] 569 |     pub fn encode<W: Write>(value: &i64, writer: &mut W) -> Result<(), EncodeError> {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `decode`
[INFO] [stderr]    --> src/lib.rs:575:12
[INFO] [stderr]     |
[INFO] [stderr] 575 |     pub fn decode<R: Read>(reader: &mut R) -> Result<i64, DecodeError> {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `encode`
[INFO] [stderr]    --> src/lib.rs:569:12
[INFO] [stderr]     |
[INFO] [stderr] 569 |     pub fn encode<W: Write>(value: &i64, writer: &mut W) -> Result<(), EncodeError> {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `decode`
[INFO] [stderr]    --> src/lib.rs:575:12
[INFO] [stderr]     |
[INFO] [stderr] 575 |     pub fn decode<R: Read>(reader: &mut R) -> Result<i64, DecodeError> {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.13s
[INFO] running `"docker" "inspect" "520908ae0d4060bdcbc019e1ad1dc22a2c3ecc64b5a14b755d56ac9c20a2601e"`
[INFO] running `"docker" "rm" "-f" "520908ae0d4060bdcbc019e1ad1dc22a2c3ecc64b5a14b755d56ac9c20a2601e"`
[INFO] [stdout] 520908ae0d4060bdcbc019e1ad1dc22a2c3ecc64b5a14b755d56ac9c20a2601e