[INFO] cloning repository https://github.com/EFulmer/rust-koans [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/EFulmer/rust-koans" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEFulmer%2Frust-koans", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEFulmer%2Frust-koans'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 134b0f6c91fedc5cc0b447d92a3cfd8e1fc472e9 [INFO] checking EFulmer/rust-koans against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEFulmer%2Frust-koans" "/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/EFulmer/rust-koans on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/EFulmer/rust-koans [INFO] finished tweaking git repo https://github.com/EFulmer/rust-koans [INFO] tweaked toml for git repo https://github.com/EFulmer/rust-koans written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/EFulmer/rust-koans already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7f839e9eeba9add1acb5cda54027b0114a8ebdd6c2a1c0c8e860a32bfb5318eb [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" "7f839e9eeba9add1acb5cda54027b0114a8ebdd6c2a1c0c8e860a32bfb5318eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7f839e9eeba9add1acb5cda54027b0114a8ebdd6c2a1c0c8e860a32bfb5318eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7f839e9eeba9add1acb5cda54027b0114a8ebdd6c2a1c0c8e860a32bfb5318eb", kill_on_drop: false }` [INFO] [stdout] 7f839e9eeba9add1acb5cda54027b0114a8ebdd6c2a1c0c8e860a32bfb5318eb [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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8e3c5430f5caa8c640c24366741d164a01796d1da806010b3fa23fa875d1f95a [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" "8e3c5430f5caa8c640c24366741d164a01796d1da806010b3fa23fa875d1f95a", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking rust-koans v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `util::*` [INFO] [stdout] --> src/about_asserts.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use util::*; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/util.rs:8:34 [INFO] [stdout] | [INFO] [stdout] 8 | let actual_any = &actual as &Any; [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/util.rs:24:20 [INFO] [stdout] | [INFO] [stdout] 24 | let v = &v as &Any; [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/util.rs:8:34 [INFO] [stdout] | [INFO] [stdout] 8 | let actual_any = &actual as &Any; [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/util.rs:24:20 [INFO] [stdout] | [INFO] [stdout] 24 | let v = &v as &Any; [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_eq` [INFO] [stdout] --> src/util.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn test_eq(actual: T, expected: U) [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_true` [INFO] [stdout] --> src/util.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | pub fn test_true(v: T) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_true` [INFO] [stdout] --> src/util.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | pub fn test_true(v: T) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.42s [INFO] running `Command { std: "docker" "inspect" "8e3c5430f5caa8c640c24366741d164a01796d1da806010b3fa23fa875d1f95a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8e3c5430f5caa8c640c24366741d164a01796d1da806010b3fa23fa875d1f95a", kill_on_drop: false }` [INFO] [stdout] 8e3c5430f5caa8c640c24366741d164a01796d1da806010b3fa23fa875d1f95a