[INFO] cloning repository https://github.com/runcioa/rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/runcioa/rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruncioa%2Frust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruncioa%2Frust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9635a338b9a562a31138ff379b8222d04aa50183
[INFO] testing runcioa/rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruncioa%2Frust" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/runcioa/rust on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/runcioa/rust
[INFO] finished tweaking git repo https://github.com/runcioa/rust
[INFO] tweaked toml for git repo https://github.com/runcioa/rust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/runcioa/rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 944660fdd37bc232eb95a5597e0e54d1a4137516a164405782f7384fc3a7d22a
[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" "944660fdd37bc232eb95a5597e0e54d1a4137516a164405782f7384fc3a7d22a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "944660fdd37bc232eb95a5597e0e54d1a4137516a164405782f7384fc3a7d22a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "944660fdd37bc232eb95a5597e0e54d1a4137516a164405782f7384fc3a7d22a", kill_on_drop: false }`
[INFO] [stdout] 944660fdd37bc232eb95a5597e0e54d1a4137516a164405782f7384fc3a7d22a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ffd2a550f9c0e9663d54c35ef2e7c36f66e1dd4407b1eae91f3f9570bce2b184
[INFO] running `Command { std: "docker" "start" "-a" "ffd2a550f9c0e9663d54c35ef2e7c36f66e1dd4407b1eae91f3f9570bce2b184", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]  --> src/strings.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | let hello = "Hello primitive string";
[INFO] [stdout]   |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello_1`
[INFO] [stdout]   --> src/strings.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | let hello_1 = String::from("Hello");
[INFO] [stdout]    |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_hello_1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]   --> src/types.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn run(){
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "ffd2a550f9c0e9663d54c35ef2e7c36f66e1dd4407b1eae91f3f9570bce2b184", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffd2a550f9c0e9663d54c35ef2e7c36f66e1dd4407b1eae91f3f9570bce2b184", kill_on_drop: false }`
[INFO] [stdout] ffd2a550f9c0e9663d54c35ef2e7c36f66e1dd4407b1eae91f3f9570bce2b184
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20eafdfd16eb4e41a6057133a581490b7ab6c3b56c99e88f270dce02b895ae92
[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" "20eafdfd16eb4e41a6057133a581490b7ab6c3b56c99e88f270dce02b895ae92", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]  --> src/strings.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | let hello = "Hello primitive string";
[INFO] [stdout]   |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello_1`
[INFO] [stdout]   --> src/strings.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | let hello_1 = String::from("Hello");
[INFO] [stdout]    |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_hello_1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]   --> src/types.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn run(){
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "20eafdfd16eb4e41a6057133a581490b7ab6c3b56c99e88f270dce02b895ae92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20eafdfd16eb4e41a6057133a581490b7ab6c3b56c99e88f270dce02b895ae92", kill_on_drop: false }`
[INFO] [stdout] 20eafdfd16eb4e41a6057133a581490b7ab6c3b56c99e88f270dce02b895ae92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1abf2e3c8b8c1e38e67dfaf80aeaf19ff5ebfff741f8686f83ecce77373a51e2
[INFO] running `Command { std: "docker" "start" "-a" "1abf2e3c8b8c1e38e67dfaf80aeaf19ff5ebfff741f8686f83ecce77373a51e2", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `hello`
[INFO] [stderr]  --> src/strings.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | let hello = "Hello primitive string";
[INFO] [stderr]   |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hello_1`
[INFO] [stderr]   --> src/strings.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | let hello_1 = String::from("Hello");
[INFO] [stderr]    |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_hello_1`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]   --> src/types.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn run(){
[INFO] [stderr]    |        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust` (bin "rust" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust-b5d5618e0d061c10)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1abf2e3c8b8c1e38e67dfaf80aeaf19ff5ebfff741f8686f83ecce77373a51e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1abf2e3c8b8c1e38e67dfaf80aeaf19ff5ebfff741f8686f83ecce77373a51e2", kill_on_drop: false }`
[INFO] [stdout] 1abf2e3c8b8c1e38e67dfaf80aeaf19ff5ebfff741f8686f83ecce77373a51e2