[INFO] cloning repository https://github.com/rmazza/rust-tutorial [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rmazza/rust-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frmazza%2Frust-tutorial", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frmazza%2Frust-tutorial'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0f152feb4f3a39888eb79cfb99b8d758c50fdba6 [INFO] testing rmazza/rust-tutorial against 1.49.0 for beta-1.50-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frmazza%2Frust-tutorial" "/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/rmazza/rust-tutorial on toolchain 1.49.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/rmazza/rust-tutorial [INFO] finished tweaking git repo https://github.com/rmazza/rust-tutorial [INFO] tweaked toml for git repo https://github.com/rmazza/rust-tutorial written to /workspace/builds/worker-13/source/Cargo.toml [INFO] crate git repo https://github.com/rmazza/rust-tutorial already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7edd61b3afbeaacaeb9c4295e36a06d2745856feb3e4609479fa7c5c6234dac4 [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" "7edd61b3afbeaacaeb9c4295e36a06d2745856feb3e4609479fa7c5c6234dac4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7edd61b3afbeaacaeb9c4295e36a06d2745856feb3e4609479fa7c5c6234dac4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7edd61b3afbeaacaeb9c4295e36a06d2745856feb3e4609479fa7c5c6234dac4", kill_on_drop: false }` [INFO] [stdout] 7edd61b3afbeaacaeb9c4295e36a06d2745856feb3e4609479fa7c5c6234dac4 [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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0561fa9f54d7fcf9b56f4b99341bb1f674d99e3478ad82ef7e4861d046e93d71 [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" "0561fa9f54d7fcf9b56f4b99341bb1f674d99e3478ad82ef7e4861d046e93d71", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling rust-tutorial v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/main.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let s = "hello"; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/main.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let t = String::from("hello"); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `number` [INFO] [stdout] --> src/main.rs:137:9 [INFO] [stdout] | [INFO] [stdout] 137 | let mut number = 3; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:137:9 [INFO] [stdout] | [INFO] [stdout] 137 | let mut number = 3; [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: variable `heapString` should have a snake case name [INFO] [stdout] --> src/main.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | let heapString = String::from("hello"); // s comes into scope [INFO] [stdout] | ^^^^^^^^^^ help: convert the identifier to snake case: `heap_string` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `stackX` should have a snake case name [INFO] [stdout] --> src/main.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let stackX = 5; // x comes into scope [INFO] [stdout] | ^^^^^^ help: convert the identifier to snake case: `stack_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.66s [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "0561fa9f54d7fcf9b56f4b99341bb1f674d99e3478ad82ef7e4861d046e93d71", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0561fa9f54d7fcf9b56f4b99341bb1f674d99e3478ad82ef7e4861d046e93d71", kill_on_drop: false }` [INFO] [stdout] 0561fa9f54d7fcf9b56f4b99341bb1f674d99e3478ad82ef7e4861d046e93d71 [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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 00cb1de713d8be601f269f913291c8b08cdc9e53ea8f7f8ad30dd86a642df7c1 [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" "00cb1de713d8be601f269f913291c8b08cdc9e53ea8f7f8ad30dd86a642df7c1", kill_on_drop: false }` [INFO] [stderr] Compiling rust-tutorial v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/main.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let s = "hello"; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/main.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let t = String::from("hello"); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `number` [INFO] [stdout] --> src/main.rs:137:9 [INFO] [stdout] | [INFO] [stdout] 137 | let mut number = 3; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:137:9 [INFO] [stdout] | [INFO] [stdout] 137 | let mut number = 3; [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: variable `heapString` should have a snake case name [INFO] [stdout] --> src/main.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | let heapString = String::from("hello"); // s comes into scope [INFO] [stdout] | ^^^^^^^^^^ help: convert the identifier to snake case: `heap_string` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `stackX` should have a snake case name [INFO] [stdout] --> src/main.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let stackX = 5; // x comes into scope [INFO] [stdout] | ^^^^^^ help: convert the identifier to snake case: `stack_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.16s [INFO] running `Command { std: "docker" "inspect" "00cb1de713d8be601f269f913291c8b08cdc9e53ea8f7f8ad30dd86a642df7c1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "00cb1de713d8be601f269f913291c8b08cdc9e53ea8f7f8ad30dd86a642df7c1", kill_on_drop: false }` [INFO] [stdout] 00cb1de713d8be601f269f913291c8b08cdc9e53ea8f7f8ad30dd86a642df7c1 [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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 8d84c06cd561a179b356a65cd53a345b2cafc2dd1bc4cb4acd3feb737886e391 [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" "8d84c06cd561a179b356a65cd53a345b2cafc2dd1bc4cb4acd3feb737886e391", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/main.rs:11:9 [INFO] [stderr] | [INFO] [stderr] 11 | let s = "hello"; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t` [INFO] [stderr] --> src/main.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | let t = String::from("hello"); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `number` [INFO] [stderr] --> src/main.rs:137:9 [INFO] [stderr] | [INFO] [stderr] 137 | let mut number = 3; [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_number` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:137:9 [INFO] [stderr] | [INFO] [stderr] 137 | let mut number = 3; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `heapString` should have a snake case name [INFO] [stderr] --> src/main.rs:38:9 [INFO] [stderr] | [INFO] [stderr] 38 | let heapString = String::from("hello"); // s comes into scope [INFO] [stderr] | ^^^^^^^^^^ help: convert the identifier to snake case: `heap_string` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `stackX` should have a snake case name [INFO] [stderr] --> src/main.rs:43:9 [INFO] [stderr] | [INFO] [stderr] 43 | let stackX = 5; // x comes into scope [INFO] [stderr] | ^^^^^^ help: convert the identifier to snake case: `stack_x` [INFO] [stderr] [INFO] [stderr] warning: 6 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/rust_tutorial-361a887f69ee541a [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" "8d84c06cd561a179b356a65cd53a345b2cafc2dd1bc4cb4acd3feb737886e391", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8d84c06cd561a179b356a65cd53a345b2cafc2dd1bc4cb4acd3feb737886e391", kill_on_drop: false }` [INFO] [stdout] 8d84c06cd561a179b356a65cd53a345b2cafc2dd1bc4cb4acd3feb737886e391