[INFO] cloning repository https://github.com/qbosen/rust-learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qbosen/rust-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqbosen%2Frust-learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqbosen%2Frust-learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cb5ccfd0fbb076c1369786e375c22c698e5cc348
[INFO] testing qbosen/rust-learn against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqbosen%2Frust-learn" "/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/qbosen/rust-learn on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/qbosen/rust-learn
[INFO] finished tweaking git repo https://github.com/qbosen/rust-learn
[INFO] tweaked toml for git repo https://github.com/qbosen/rust-learn written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/qbosen/rust-learn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 14acfa87977e8ea6c780dd36445c375657480a7ab31171be7b5887b11eacfa12
[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" "14acfa87977e8ea6c780dd36445c375657480a7ab31171be7b5887b11eacfa12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14acfa87977e8ea6c780dd36445c375657480a7ab31171be7b5887b11eacfa12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14acfa87977e8ea6c780dd36445c375657480a7ab31171be7b5887b11eacfa12", kill_on_drop: false }`
[INFO] [stdout] 14acfa87977e8ea6c780dd36445c375657480a7ab31171be7b5887b11eacfa12
[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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca18a81baa9196f97b7b0f81c56ca50c3764caad7a3071506bafcaa58e2f7880
[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" "ca18a81baa9196f97b7b0f81c56ca50c3764caad7a3071506bafcaa58e2f7880", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: static is never used: `MAX`
[INFO] [stdout]   --> src/memory_address.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | static MAX: u32 = 0;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `foo`
[INFO] [stdout]   --> src/memory_address.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn foo() {}
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `apply`
[INFO] [stdout]  --> src/base_learns.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn apply(value: i32, f: fn(i32) -> i32) -> i32 {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `square`
[INFO] [stdout]  --> src/base_learns.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn square(value: i32) -> i32 {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cube`
[INFO] [stdout]  --> src/base_learns.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn cube(value: i32) -> i32 {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pi`
[INFO] [stdout]   --> src/base_learns.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn pi() -> f64 {
[INFO] [stdout]    |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `not_pi`
[INFO] [stdout]   --> src/base_learns.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn not_pi() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unspecified`
[INFO] [stdout]   --> src/base_learns.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Unspecified = 0,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Female`
[INFO] [stdout]   --> src/base_learns.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Female = 1,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Male`
[INFO] [stdout]   --> src/base_learns.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     Male = 2,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/base_learns.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     id: UserId,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/base_learns.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `gender`
[INFO] [stdout]   --> src/base_learns.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     gender: Gender,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/base_learns.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     id: TopicId,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/base_learns.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `owner`
[INFO] [stdout]   --> src/base_learns.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     owner: UserId,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Join`
[INFO] [stdout]   --> src/base_learns.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     Join((UserId, TopicId)),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Leave`
[INFO] [stdout]   --> src/base_learns.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     Leave((UserId, TopicId)),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Message`
[INFO] [stdout]   --> src/base_learns.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     Message((UserId, TopicId, String)),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "ca18a81baa9196f97b7b0f81c56ca50c3764caad7a3071506bafcaa58e2f7880", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca18a81baa9196f97b7b0f81c56ca50c3764caad7a3071506bafcaa58e2f7880", kill_on_drop: false }`
[INFO] [stdout] ca18a81baa9196f97b7b0f81c56ca50c3764caad7a3071506bafcaa58e2f7880
[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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44dd79e871d96c61c79bcc610c83e2ed0afba8c664b6d8f3eacaec914e0bdef8
[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" "44dd79e871d96c61c79bcc610c83e2ed0afba8c664b6d8f3eacaec914e0bdef8", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Unspecified`
[INFO] [stdout]   --> src/base_learns.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Unspecified = 0,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/base_learns.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `gender`
[INFO] [stdout]   --> src/base_learns.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     gender: Gender,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/base_learns.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `owner`
[INFO] [stdout]   --> src/base_learns.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     owner: UserId,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Leave`
[INFO] [stdout]   --> src/base_learns.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     Leave((UserId, TopicId)),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "44dd79e871d96c61c79bcc610c83e2ed0afba8c664b6d8f3eacaec914e0bdef8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44dd79e871d96c61c79bcc610c83e2ed0afba8c664b6d8f3eacaec914e0bdef8", kill_on_drop: false }`
[INFO] [stdout] 44dd79e871d96c61c79bcc610c83e2ed0afba8c664b6d8f3eacaec914e0bdef8
[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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6e34c0d86a51e6616c8681173d1397d9d48e1e1ace2f00e64a9b815c828cfb3f
[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" "6e34c0d86a51e6616c8681173d1397d9d48e1e1ace2f00e64a9b815c828cfb3f", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: variant is never constructed: `Unspecified`
[INFO] [stdout] running 6 tests
[INFO] [stderr]   --> src/base_learns.rs:42:5
[INFO] [stdout] test base_learns::test_func ... ok
[INFO] [stderr]    |
[INFO] [stdout] test base_learns::test_return ... ok
[INFO] [stderr] 42 |     Unspecified = 0,
[INFO] [stdout] test memory_address::show_string_memeory_address ... ok
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]   --> src/base_learns.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     name: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `gender`
[INFO] [stderr]   --> src/base_learns.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     gender: Gender,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]   --> src/base_learns.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     name: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `owner`
[INFO] [stderr]   --> src/base_learns.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     owner: UserId,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Leave`
[INFO] [stderr]   --> src/base_learns.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     Leave((UserId, TopicId)),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-learn` (bin "rust-learn" test) generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_learn-01208c6513a15131)
[INFO] [stdout] test memory_address::first_closure_test ... ok
[INFO] [stdout] test base_learns::test_structure ... ok
[INFO] [stdout] test memory_address::show_memory_details ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6e34c0d86a51e6616c8681173d1397d9d48e1e1ace2f00e64a9b815c828cfb3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e34c0d86a51e6616c8681173d1397d9d48e1e1ace2f00e64a9b815c828cfb3f", kill_on_drop: false }`
[INFO] [stdout] 6e34c0d86a51e6616c8681173d1397d9d48e1e1ace2f00e64a9b815c828cfb3f