[INFO] updating cached repository https://github.com/kolemannix/hello_redis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6dc386b594d019b4b838ebc96483c0051bac7e80
[INFO] testing kolemannix/hello_redis against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkolemannix%2Fhello_redis" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kolemannix/hello_redis on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kolemannix/hello_redis
[INFO] finished tweaking git repo https://github.com/kolemannix/hello_redis
[INFO] tweaked toml for git repo https://github.com/kolemannix/hello_redis written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/kolemannix/hello_redis already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 919833971a439c1e119c9ca06fb58f8714932e5449ec3a4e922ec2dc95132380
[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" "919833971a439c1e119c9ca06fb58f8714932e5449ec3a4e922ec2dc95132380", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "919833971a439c1e119c9ca06fb58f8714932e5449ec3a4e922ec2dc95132380", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "919833971a439c1e119c9ca06fb58f8714932e5449ec3a4e922ec2dc95132380", kill_on_drop: false }`
[INFO] [stdout] 919833971a439c1e119c9ca06fb58f8714932e5449ec3a4e922ec2dc95132380
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa7fd04cd4c5081547db19a1572fbb5be89434134a02366889a6da367f2bb41e
[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" "aa7fd04cd4c5081547db19a1572fbb5be89434134a02366889a6da367f2bb41e", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello_redis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Borrowed`
[INFO] [stdout]  --> src/lib.rs:9:24
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::borrow::Cow::{Borrowed};
[INFO] [stdout]   |                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `await_response_integer`
[INFO] [stdout]    --> src/lib.rs:124:4
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn await_response_integer(stream: &mut TcpStream) -> Result<i64> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]    --> src/lib.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 |     value: Vec<u8>
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `write_number`
[INFO] [stdout]    --> src/lib.rs:294:4
[INFO] [stdout]     |
[INFO] [stdout] 294 | fn write_number<T : Write>(writer: &mut T, num: u32) -> std::io::Result<()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `Command { std: "docker" "inspect" "aa7fd04cd4c5081547db19a1572fbb5be89434134a02366889a6da367f2bb41e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa7fd04cd4c5081547db19a1572fbb5be89434134a02366889a6da367f2bb41e", kill_on_drop: false }`
[INFO] [stdout] aa7fd04cd4c5081547db19a1572fbb5be89434134a02366889a6da367f2bb41e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c60408abf1fda8c6319b0a21752058be4c88a97fa293524f02b8a6f9c9bfba58
[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" "c60408abf1fda8c6319b0a21752058be4c88a97fa293524f02b8a6f9c9bfba58", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hello_redis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Borrowed`
[INFO] [stdout]  --> src/lib.rs:9:24
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::borrow::Cow::{Borrowed};
[INFO] [stdout]   |                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `await_response_integer`
[INFO] [stdout]    --> src/lib.rs:124:4
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn await_response_integer(stream: &mut TcpStream) -> Result<i64> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]    --> src/lib.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 |     value: Vec<u8>
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `write_number`
[INFO] [stdout]    --> src/lib.rs:294:4
[INFO] [stdout]     |
[INFO] [stdout] 294 | fn write_number<T : Write>(writer: &mut T, num: u32) -> std::io::Result<()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Borrowed`
[INFO] [stdout]  --> src/lib.rs:9:24
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::borrow::Cow::{Borrowed};
[INFO] [stdout]   |                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `await_response_integer`
[INFO] [stdout]    --> src/lib.rs:124:4
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn await_response_integer(stream: &mut TcpStream) -> Result<i64> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]    --> src/lib.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 |     value: Vec<u8>
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `write_number`
[INFO] [stdout]    --> src/lib.rs:294:4
[INFO] [stdout]     |
[INFO] [stdout] 294 | fn write_number<T : Write>(writer: &mut T, num: u32) -> std::io::Result<()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "c60408abf1fda8c6319b0a21752058be4c88a97fa293524f02b8a6f9c9bfba58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c60408abf1fda8c6319b0a21752058be4c88a97fa293524f02b8a6f9c9bfba58", kill_on_drop: false }`
[INFO] [stdout] c60408abf1fda8c6319b0a21752058be4c88a97fa293524f02b8a6f9c9bfba58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 16bb62f7651ad7314270c450f2b3d6af3d9890aaf8f84265166a3b05a74bac20
[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" "16bb62f7651ad7314270c450f2b3d6af3d9890aaf8f84265166a3b05a74bac20", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]  --> src/lib.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Borrowed`
[INFO] [stderr]  --> src/lib.rs:9:24
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::borrow::Cow::{Borrowed};
[INFO] [stderr]   |                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `await_response_integer`
[INFO] [stderr]    --> src/lib.rs:124:4
[INFO] [stderr]     |
[INFO] [stderr] 124 | fn await_response_integer(stream: &mut TcpStream) -> Result<i64> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `value`
[INFO] [stderr]    --> src/lib.rs:146:5
[INFO] [stderr]     |
[INFO] [stderr] 146 |     value: Vec<u8>
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_number`
[INFO] [stderr]    --> src/lib.rs:294:4
[INFO] [stderr]     |
[INFO] [stderr] 294 | fn write_number<T : Write>(writer: &mut T, num: u32) -> std::io::Result<()> {
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]  --> src/lib.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Borrowed`
[INFO] [stderr]  --> src/lib.rs:9:24
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::borrow::Cow::{Borrowed};
[INFO] [stderr]   |                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `await_response_integer`
[INFO] [stderr]    --> src/lib.rs:124:4
[INFO] [stderr]     |
[INFO] [stderr] 124 | fn await_response_integer(stream: &mut TcpStream) -> Result<i64> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `value`
[INFO] [stderr]    --> src/lib.rs:146:5
[INFO] [stderr]     |
[INFO] [stderr] 146 |     value: Vec<u8>
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_number`
[INFO] [stderr]    --> src/lib.rs:294:4
[INFO] [stderr]     |
[INFO] [stderr] 294 | fn write_number<T : Write>(writer: &mut T, num: u32) -> std::io::Result<()> {
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hello_redis-8eb2baf38e5b42c0
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hello_redis-2cce5f8ba2e25335
[INFO] [stdout] test tests::set_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hello_redis
[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
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "16bb62f7651ad7314270c450f2b3d6af3d9890aaf8f84265166a3b05a74bac20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16bb62f7651ad7314270c450f2b3d6af3d9890aaf8f84265166a3b05a74bac20", kill_on_drop: false }`
[INFO] [stdout] 16bb62f7651ad7314270c450f2b3d6af3d9890aaf8f84265166a3b05a74bac20