[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] checking qbosen/rust-learn against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqbosen%2Frust-learn" "/workspace/builds/worker-98/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-98/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/qbosen/rust-learn on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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-98/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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecdab06fe74a14e1c8a1f2e95f51946386eb2180f926ce092ffb992acdb79280
[INFO] running `Command { std: "docker" "start" "-a" "ecdab06fe74a14e1c8a1f2e95f51946386eb2180f926ce092ffb992acdb79280", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecdab06fe74a14e1c8a1f2e95f51946386eb2180f926ce092ffb992acdb79280", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecdab06fe74a14e1c8a1f2e95f51946386eb2180f926ce092ffb992acdb79280", kill_on_drop: false }`
[INFO] [stdout] ecdab06fe74a14e1c8a1f2e95f51946386eb2180f926ce092ffb992acdb79280
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78dd8b2d5caa5a343782ecc51590538e2ec5a97eea9d2c202368f25827f428a4
[INFO] running `Command { std: "docker" "start" "-a" "78dd8b2d5caa5a343782ecc51590538e2ec5a97eea9d2c202368f25827f428a4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking 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] [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 dev [unoptimized + debuginfo] target(s) in 4.24s
[INFO] running `Command { std: "docker" "inspect" "78dd8b2d5caa5a343782ecc51590538e2ec5a97eea9d2c202368f25827f428a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78dd8b2d5caa5a343782ecc51590538e2ec5a97eea9d2c202368f25827f428a4", kill_on_drop: false }`
[INFO] [stdout] 78dd8b2d5caa5a343782ecc51590538e2ec5a97eea9d2c202368f25827f428a4