[INFO] cloning repository https://github.com/DCP-solved-with-Rust/dcp_00003
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DCP-solved-with-Rust/dcp_00003" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDCP-solved-with-Rust%2Fdcp_00003", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDCP-solved-with-Rust%2Fdcp_00003'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d76f6932e578d891f5433167a477c8e9c7e5ee03
[INFO] testing DCP-solved-with-Rust/dcp_00003 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDCP-solved-with-Rust%2Fdcp_00003" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DCP-solved-with-Rust/dcp_00003 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DCP-solved-with-Rust/dcp_00003
[INFO] finished tweaking git repo https://github.com/DCP-solved-with-Rust/dcp_00003
[INFO] tweaked toml for git repo https://github.com/DCP-solved-with-Rust/dcp_00003 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/DCP-solved-with-Rust/dcp_00003 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8449460e0e2c72c0f52261adf2b5000556e956f86f5099692a5307938da1225
[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" "e8449460e0e2c72c0f52261adf2b5000556e956f86f5099692a5307938da1225", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8449460e0e2c72c0f52261adf2b5000556e956f86f5099692a5307938da1225", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8449460e0e2c72c0f52261adf2b5000556e956f86f5099692a5307938da1225", kill_on_drop: false }`
[INFO] [stdout] e8449460e0e2c72c0f52261adf2b5000556e956f86f5099692a5307938da1225
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] ac6924c3bd23bee549d9091f87d055764db95bb10b5f13688325842ed2c11271
[INFO] running `Command { std: "docker" "start" "-a" "ac6924c3bd23bee549d9091f87d055764db95bb10b5f13688325842ed2c11271", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde v1.0.66
[INFO] [stderr]    Compiling itoa v0.4.1
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]    Compiling serde_derive v1.0.66
[INFO] [stderr]    Compiling serde_json v1.0.20
[INFO] [stderr]    Compiling dcp_00003 v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `serialize`
[INFO] [stdout]   --> src/lib.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn serialize (root: Node) -> String
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deserialize`
[INFO] [stdout]   --> src/lib.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn deserialize (s: String) -> Node
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.32s
[INFO] running `Command { std: "docker" "inspect" "ac6924c3bd23bee549d9091f87d055764db95bb10b5f13688325842ed2c11271", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac6924c3bd23bee549d9091f87d055764db95bb10b5f13688325842ed2c11271", kill_on_drop: false }`
[INFO] [stdout] ac6924c3bd23bee549d9091f87d055764db95bb10b5f13688325842ed2c11271
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--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] ad8ca8e52704f5d20fffe30965417dc0c27f9e1ddeecc974750a92ebd5cf0735
[INFO] running `Command { std: "docker" "start" "-a" "ad8ca8e52704f5d20fffe30965417dc0c27f9e1ddeecc974750a92ebd5cf0735", kill_on_drop: false }`
[INFO] [stderr]    Compiling dcp_00003 v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `serialize`
[INFO] [stdout]   --> src/lib.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn serialize (root: Node) -> String
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deserialize`
[INFO] [stdout]   --> src/lib.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn deserialize (s: String) -> Node
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "ad8ca8e52704f5d20fffe30965417dc0c27f9e1ddeecc974750a92ebd5cf0735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad8ca8e52704f5d20fffe30965417dc0c27f9e1ddeecc974750a92ebd5cf0735", kill_on_drop: false }`
[INFO] [stdout] ad8ca8e52704f5d20fffe30965417dc0c27f9e1ddeecc974750a92ebd5cf0735
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6f900c37ba1098401c51c1533d09cb78f8bc6be03eb72e4df0696aa10015ca5b
[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" "6f900c37ba1098401c51c1533d09cb78f8bc6be03eb72e4df0696aa10015ca5b", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: function is never used: `serialize`
[INFO] [stdout] running 1 test
[INFO] [stderr]   --> src/lib.rs:50:4
[INFO] [stdout] test test ... ok
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 50 | fn serialize (root: Node) -> String
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `deserialize`
[INFO] [stderr]   --> src/lib.rs:55:4
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn deserialize (s: String) -> Node
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dcp_00003-2da440665869e3dd
[INFO] [stderr]    Doc-tests dcp_00003
[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" "6f900c37ba1098401c51c1533d09cb78f8bc6be03eb72e4df0696aa10015ca5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f900c37ba1098401c51c1533d09cb78f8bc6be03eb72e4df0696aa10015ca5b", kill_on_drop: false }`
[INFO] [stdout] 6f900c37ba1098401c51c1533d09cb78f8bc6be03eb72e4df0696aa10015ca5b