[INFO] cloning repository https://github.com/sumrid/first-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sumrid/first-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsumrid%2Ffirst-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsumrid%2Ffirst-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e2c33ab835e0b161b4f276f2b87698ee57c9b2c9 [INFO] checking sumrid/first-rust against try#575650af7d7ca88602df28e39d27bf3e456c306e for pr-80579 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsumrid%2Ffirst-rust" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sumrid/first-rust on toolchain 575650af7d7ca88602df28e39d27bf3e456c306e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sumrid/first-rust [INFO] finished tweaking git repo https://github.com/sumrid/first-rust [INFO] tweaked toml for git repo https://github.com/sumrid/first-rust written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/sumrid/first-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded smallvec v0.4.5 [INFO] [stderr] Downloaded ferris-says v0.1.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "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] 96c0a7dab7b3ed044c2f201e42d96cdf224822f6bbd7f57d31129ce6d80cadf7 [INFO] running `Command { std: "docker" "start" "-a" "96c0a7dab7b3ed044c2f201e42d96cdf224822f6bbd7f57d31129ce6d80cadf7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "96c0a7dab7b3ed044c2f201e42d96cdf224822f6bbd7f57d31129ce6d80cadf7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "96c0a7dab7b3ed044c2f201e42d96cdf224822f6bbd7f57d31129ce6d80cadf7", kill_on_drop: false }` [INFO] [stdout] 96c0a7dab7b3ed044c2f201e42d96cdf224822f6bbd7f57d31129ce6d80cadf7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d4e69486612bbd62776384e258c045c358b4b37c9d278d18b1c6e7a6350d8dc1 [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" "d4e69486612bbd62776384e258c045c358b4b37c9d278d18b1c6e7a6350d8dc1", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.68 [INFO] [stderr] Compiling cc v1.0.50 [INFO] [stderr] Checking rustc-demangle v0.1.16 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking smallvec v0.4.5 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Compiling backtrace-sys v0.1.35 [INFO] [stderr] Checking backtrace v0.3.46 [INFO] [stderr] Checking error-chain v0.10.0 [INFO] [stderr] Checking ferris-says v0.1.2 [INFO] [stderr] Checking hello-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `x_str` [INFO] [stdout] --> src/main.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | let x_str = "Hello world"; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_str` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x_float` [INFO] [stdout] --> src/main.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | let x_float = 10.10; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_x_float` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x_num` [INFO] [stdout] --> src/main.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | let x_num = 100_000; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_num` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x_bool` [INFO] [stdout] --> src/main.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | let x_bool = true; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_x_bool` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x_icon` [INFO] [stdout] --> src/main.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | let x_icon = "👌"; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_x_icon` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x_char` [INFO] [stdout] --> src/main.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let x_char = 'A'; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_x_char` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `x_mut_var` is assigned to, but never used [INFO] [stdout] --> src/main.rs:45:9 [INFO] [stdout] | [INFO] [stdout] 45 | let mut x_mut_var = 10; // mutable variable [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_x_mut_var` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `x_mut_var` is never read [INFO] [stdout] --> src/main.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | x_mut_var = 12; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str_literal` [INFO] [stdout] --> src/main.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | let str_literal = "This is string literal"; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_str_literal` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `user2` [INFO] [stdout] --> src/main.rs:208:9 [INFO] [stdout] | [INFO] [stdout] 208 | let mut user2 = User::new(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:229:9 [INFO] [stdout] | [INFO] [stdout] 229 | let x = Country::Thailand; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p1` [INFO] [stdout] --> src/main.rs:230:9 [INFO] [stdout] | [INFO] [stdout] 230 | let p1 = Person { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:208:9 [INFO] [stdout] | [INFO] [stdout] 208 | let mut user2 = User::new(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `XX` [INFO] [stdout] --> src/main.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 48 | const XX: f64 = 155.51; // constant [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test2` [INFO] [stdout] --> src/main.rs:139:8 [INFO] [stdout] | [INFO] [stdout] 139 | fn test2(text: String) -> String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `last_name` [INFO] [stdout] --> src/main.rs:183:9 [INFO] [stdout] | [INFO] [stdout] 183 | last_name: String, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `enumeration` [INFO] [stdout] --> src/main.rs:216:4 [INFO] [stdout] | [INFO] [stdout] 216 | fn enumeration() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x_str` [INFO] [stdout] --> src/main.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | let x_str = "Hello world"; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_str` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x_float` [INFO] [stdout] --> src/main.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | let x_float = 10.10; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_x_float` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x_num` [INFO] [stdout] --> src/main.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | let x_num = 100_000; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_num` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x_bool` [INFO] [stdout] --> src/main.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | let x_bool = true; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_x_bool` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x_icon` [INFO] [stdout] --> src/main.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | let x_icon = "👌"; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_x_icon` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x_char` [INFO] [stdout] --> src/main.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let x_char = 'A'; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_x_char` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `x_mut_var` is assigned to, but never used [INFO] [stdout] --> src/main.rs:45:9 [INFO] [stdout] | [INFO] [stdout] 45 | let mut x_mut_var = 10; // mutable variable [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_x_mut_var` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `x_mut_var` is never read [INFO] [stdout] --> src/main.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | x_mut_var = 12; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str_literal` [INFO] [stdout] --> src/main.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | let str_literal = "This is string literal"; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_str_literal` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `user2` [INFO] [stdout] --> src/main.rs:208:9 [INFO] [stdout] | [INFO] [stdout] 208 | let mut user2 = User::new(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:229:9 [INFO] [stdout] | [INFO] [stdout] 229 | let x = Country::Thailand; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p1` [INFO] [stdout] --> src/main.rs:230:9 [INFO] [stdout] | [INFO] [stdout] 230 | let p1 = Person { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 17 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:208:9 [INFO] [stdout] | [INFO] [stdout] 208 | let mut user2 = User::new(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `XX` [INFO] [stdout] --> src/main.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 48 | const XX: f64 = 155.51; // constant [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test2` [INFO] [stdout] --> src/main.rs:139:8 [INFO] [stdout] | [INFO] [stdout] 139 | fn test2(text: String) -> String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `last_name` [INFO] [stdout] --> src/main.rs:183:9 [INFO] [stdout] | [INFO] [stdout] 183 | last_name: String, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `enumeration` [INFO] [stdout] --> src/main.rs:216:4 [INFO] [stdout] | [INFO] [stdout] 216 | fn enumeration() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 17 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 11.74s [INFO] running `Command { std: "docker" "inspect" "d4e69486612bbd62776384e258c045c358b4b37c9d278d18b1c6e7a6350d8dc1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d4e69486612bbd62776384e258c045c358b4b37c9d278d18b1c6e7a6350d8dc1", kill_on_drop: false }` [INFO] [stdout] d4e69486612bbd62776384e258c045c358b4b37c9d278d18b1c6e7a6350d8dc1