[INFO] cloning repository https://github.com/fewwwww/learn-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fewwwww/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffewwwww%2Flearn-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffewwwww%2Flearn-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4d7b50068aafbdd15742f8bf0a7e51e2c8c55a01 [INFO] testing fewwwww/learn-rust against 1.59.0 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffewwwww%2Flearn-rust" "/workspace/builds/worker-13/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/fewwwww/learn-rust on toolchain 1.59.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/fewwwww/learn-rust [INFO] finished tweaking git repo https://github.com/fewwwww/learn-rust [INFO] tweaked toml for git repo https://github.com/fewwwww/learn-rust written to /workspace/builds/worker-13/source/Cargo.toml [INFO] crate git repo https://github.com/fewwwww/learn-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1ffe18e708aeed750696919d7290f81d44ca89796d9bc84b2fad64f2888a9214 [INFO] running `Command { std: "docker" "start" "-a" "1ffe18e708aeed750696919d7290f81d44ca89796d9bc84b2fad64f2888a9214", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1ffe18e708aeed750696919d7290f81d44ca89796d9bc84b2fad64f2888a9214", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ffe18e708aeed750696919d7290f81d44ca89796d9bc84b2fad64f2888a9214", kill_on_drop: false }` [INFO] [stdout] 1ffe18e708aeed750696919d7290f81d44ca89796d9bc84b2fad64f2888a9214 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2ed1e68c88bc4829b3e317117f5deb5481f95d5f915b0c09f2fa22457b694976 [INFO] running `Command { std: "docker" "start" "-a" "2ed1e68c88bc4829b3e317117f5deb5481f95d5f915b0c09f2fa22457b694976", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/main.rs:53:46 [INFO] [stdout] | [INFO] [stdout] 53 | struct Classic {name: String, age: usize}; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `b` is never read [INFO] [stdout] --> src/main.rs:7:13 [INFO] [stdout] | [INFO] [stdout] 7 | let mut b = 1; [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: `number` [INFO] [stdout] --> src/main.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let number: u32 = 100; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `declare_arr` [INFO] [stdout] --> src/main.rs:76:9 [INFO] [stdout] | [INFO] [stdout] 76 | let declare_arr = [0; 5]; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_declare_arr` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `age` [INFO] [stdout] --> src/main.rs:53:35 [INFO] [stdout] | [INFO] [stdout] 53 | struct Classic {name: String, age: usize}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Unit` [INFO] [stdout] --> src/main.rs:57:12 [INFO] [stdout] | [INFO] [stdout] 57 | struct Unit; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Transmission` [INFO] [stdout] --> src/main.rs:63:10 [INFO] [stdout] | [INFO] [stdout] 63 | enum Transmission { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `isBigger` should have a snake case name [INFO] [stdout] --> src/main.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let isBigger: bool = 2 > 1; [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `is_bigger` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `calcResult` should have a snake case name [INFO] [stdout] --> src/main.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let calcResult: u32 = 1 + 2 - 3 * 2 / 2; [INFO] [stdout] | ^^^^^^^^^^ help: convert the identifier to snake case: `calc_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.52s [INFO] running `Command { std: "docker" "inspect" "2ed1e68c88bc4829b3e317117f5deb5481f95d5f915b0c09f2fa22457b694976", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2ed1e68c88bc4829b3e317117f5deb5481f95d5f915b0c09f2fa22457b694976", kill_on_drop: false }` [INFO] [stdout] 2ed1e68c88bc4829b3e317117f5deb5481f95d5f915b0c09f2fa22457b694976 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4b3ee9f077ed9409d0a7a7a222eb3207e616d9cafb55569d73ea1b8836bc4eca [INFO] running `Command { std: "docker" "start" "-a" "4b3ee9f077ed9409d0a7a7a222eb3207e616d9cafb55569d73ea1b8836bc4eca", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/main.rs:53:46 [INFO] [stdout] | [INFO] [stdout] 53 | struct Classic {name: String, age: usize}; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `b` is never read [INFO] [stdout] --> src/main.rs:7:13 [INFO] [stdout] | [INFO] [stdout] 7 | let mut b = 1; [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: `number` [INFO] [stdout] --> src/main.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let number: u32 = 100; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `declare_arr` [INFO] [stdout] --> src/main.rs:76:9 [INFO] [stdout] | [INFO] [stdout] 76 | let declare_arr = [0; 5]; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_declare_arr` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `isBigger` should have a snake case name [INFO] [stdout] --> src/main.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let isBigger: bool = 2 > 1; [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `is_bigger` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `calcResult` should have a snake case name [INFO] [stdout] --> src/main.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let calcResult: u32 = 1 + 2 - 3 * 2 / 2; [INFO] [stdout] | ^^^^^^^^^^ help: convert the identifier to snake case: `calc_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.88s [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "4b3ee9f077ed9409d0a7a7a222eb3207e616d9cafb55569d73ea1b8836bc4eca", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4b3ee9f077ed9409d0a7a7a222eb3207e616d9cafb55569d73ea1b8836bc4eca", kill_on_drop: false }` [INFO] [stdout] 4b3ee9f077ed9409d0a7a7a222eb3207e616d9cafb55569d73ea1b8836bc4eca [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 92d31d0a6a7fcc4923f196b5e35e74902dcd3edf98d7f6cf36855972cd1faf9f [INFO] running `Command { std: "docker" "start" "-a" "92d31d0a6a7fcc4923f196b5e35e74902dcd3edf98d7f6cf36855972cd1faf9f", kill_on_drop: false }` [INFO] [stderr] warning: unnecessary trailing semicolon [INFO] [stderr] --> src/main.rs:53:46 [INFO] [stderr] | [INFO] [stderr] 53 | struct Classic {name: String, age: usize}; [INFO] [stderr] | ^ help: remove this semicolon [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `b` is never read [INFO] [stderr] --> src/main.rs:7:13 [INFO] [stderr] | [INFO] [stderr] 7 | let mut b = 1; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `number` [INFO] [stderr] --> src/main.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let number: u32 = 100; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `declare_arr` [INFO] [stderr] --> src/main.rs:76:9 [INFO] [stderr] | [INFO] [stderr] 76 | let declare_arr = [0; 5]; [INFO] [stderr] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_declare_arr` [INFO] [stderr] [INFO] [stderr] warning: variable `isBigger` should have a snake case name [INFO] [stderr] --> src/main.rs:21:9 [INFO] [stderr] | [INFO] [stderr] 21 | let isBigger: bool = 2 > 1; [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `is_bigger` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `calcResult` should have a snake case name [INFO] [stderr] --> src/main.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | let calcResult: u32 = 1 + 2 - 3 * 2 / 2; [INFO] [stderr] | ^^^^^^^^^^ help: convert the identifier to snake case: `calc_result` [INFO] [stderr] [INFO] [stderr] warning: `rs` (bin "rs" test) generated 6 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.00s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rs-2709190e9884946c) [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" "92d31d0a6a7fcc4923f196b5e35e74902dcd3edf98d7f6cf36855972cd1faf9f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "92d31d0a6a7fcc4923f196b5e35e74902dcd3edf98d7f6cf36855972cd1faf9f", kill_on_drop: false }` [INFO] [stdout] 92d31d0a6a7fcc4923f196b5e35e74902dcd3edf98d7f6cf36855972cd1faf9f