[INFO] cloning repository https://github.com/py4mac/rust-sandbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/py4mac/rust-sandbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpy4mac%2Frust-sandbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpy4mac%2Frust-sandbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 41a2716ea78dc4765b769ba2e4da0b35c6adcba3
[INFO] testing py4mac/rust-sandbox against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpy4mac%2Frust-sandbox" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/py4mac/rust-sandbox 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/py4mac/rust-sandbox
[INFO] finished tweaking git repo https://github.com/py4mac/rust-sandbox
[INFO] tweaked toml for git repo https://github.com/py4mac/rust-sandbox written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/py4mac/rust-sandbox 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a34da8cec4f5dbf51b75adec0a55f8546b3e63ece171f4a2de8782b0cdd710a2
[INFO] running `Command { std: "docker" "start" "-a" "a34da8cec4f5dbf51b75adec0a55f8546b3e63ece171f4a2de8782b0cdd710a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a34da8cec4f5dbf51b75adec0a55f8546b3e63ece171f4a2de8782b0cdd710a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a34da8cec4f5dbf51b75adec0a55f8546b3e63ece171f4a2de8782b0cdd710a2", kill_on_drop: false }`
[INFO] [stdout] a34da8cec4f5dbf51b75adec0a55f8546b3e63ece171f4a2de8782b0cdd710a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 2a3b1f21ea960a9fe75b582fe1cdb3b8c83cfccc86e76ff2426587deb7a5cc1a
[INFO] running `Command { std: "docker" "start" "-a" "2a3b1f21ea960a9fe75b582fe1cdb3b8c83cfccc86e76ff2426587deb7a5cc1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling net2 v0.2.36
[INFO] [stderr]    Compiling socket2 v0.3.17
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio v0.2.23
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling brotli2 v0.3.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling actix-macros v0.1.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling actix-web-codegen v0.4.0
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]    Compiling time v0.2.23
[INFO] [stderr]    Compiling thiserror v1.0.22
[INFO] [stderr]    Compiling cookie v0.14.3
[INFO] [stderr]    Compiling pin-project v0.4.27
[INFO] [stderr]    Compiling actix-codec v0.3.0
[INFO] [stderr]    Compiling tracing-futures v0.2.4
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling actix-threadpool v0.3.3
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling actix-service v1.0.6
[INFO] [stderr]    Compiling actix-rt v1.1.1
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling h2 v0.2.7
[INFO] [stderr]    Compiling trust-dns-proto v0.19.6
[INFO] [stderr]    Compiling actix-utils v2.0.0
[INFO] [stderr]    Compiling actix-server v1.0.4
[INFO] [stderr]    Compiling actix-tls v2.0.0
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling actix-router v0.2.5
[INFO] [stderr]    Compiling actix-testing v1.0.1
[INFO] [stderr]    Compiling trust-dns-resolver v0.19.6
[INFO] [stderr]    Compiling actix-connect v2.0.0
[INFO] [stderr]    Compiling actix-http v2.2.0
[INFO] [stderr]    Compiling awc v2.0.2
[INFO] [stderr]    Compiling actix-web v3.3.0
[INFO] [stderr]    Compiling rust-sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `database`
[INFO] [stdout]   --> src/cli_v2.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let database = Database::new();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_database`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `map`
[INFO] [stdout]   --> src/cli_v2.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     map: collections::HashMap<String, String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 50s
[INFO] running `Command { std: "docker" "inspect" "2a3b1f21ea960a9fe75b582fe1cdb3b8c83cfccc86e76ff2426587deb7a5cc1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a3b1f21ea960a9fe75b582fe1cdb3b8c83cfccc86e76ff2426587deb7a5cc1a", kill_on_drop: false }`
[INFO] [stdout] 2a3b1f21ea960a9fe75b582fe1cdb3b8c83cfccc86e76ff2426587deb7a5cc1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] dea3ade71f5c6cc43c8cdd13cd116aff083d30875e902b64f6f8b8d9c78574e9
[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" "dea3ade71f5c6cc43c8cdd13cd116aff083d30875e902b64f6f8b8d9c78574e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `database`
[INFO] [stdout]   --> src/cli_v2.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let database = Database::new();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_database`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `map`
[INFO] [stdout]   --> src/cli_v2.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     map: collections::HashMap<String, String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "dea3ade71f5c6cc43c8cdd13cd116aff083d30875e902b64f6f8b8d9c78574e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dea3ade71f5c6cc43c8cdd13cd116aff083d30875e902b64f6f8b8d9c78574e9", kill_on_drop: false }`
[INFO] [stdout] dea3ade71f5c6cc43c8cdd13cd116aff083d30875e902b64f6f8b8d9c78574e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] 4cdf60ac92224c11bdb9039ae93728a008672ab92d5326012b7a1c59edea3fec
[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" "4cdf60ac92224c11bdb9039ae93728a008672ab92d5326012b7a1c59edea3fec", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `database`
[INFO] [stderr]   --> src/cli_v2.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let database = Database::new();
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_database`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `map`
[INFO] [stderr]   --> src/cli_v2.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     map: collections::HashMap<String, String>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-sandbox` (bin "rust-sandbox" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_sandbox-101dedf997980b05)
[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" "4cdf60ac92224c11bdb9039ae93728a008672ab92d5326012b7a1c59edea3fec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cdf60ac92224c11bdb9039ae93728a008672ab92d5326012b7a1c59edea3fec", kill_on_drop: false }`
[INFO] [stdout] 4cdf60ac92224c11bdb9039ae93728a008672ab92d5326012b7a1c59edea3fec