[INFO] cloning repository https://github.com/WimJongeneel/rust-rdms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WimJongeneel/rust-rdms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWimJongeneel%2Frust-rdms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWimJongeneel%2Frust-rdms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9d8fbeca78d9c6fe1d521950b79e233390e56ce6
[INFO] checking WimJongeneel/rust-rdms against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWimJongeneel%2Frust-rdms" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/WimJongeneel/rust-rdms on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/WimJongeneel/rust-rdms
[INFO] finished tweaking git repo https://github.com/WimJongeneel/rust-rdms
[INFO] tweaked toml for git repo https://github.com/WimJongeneel/rust-rdms written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/WimJongeneel/rust-rdms already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76c58af5c27235df51ea2335235b8e0aa88dd425b359c76d344369212e4fe25c
[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" "76c58af5c27235df51ea2335235b8e0aa88dd425b359c76d344369212e4fe25c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76c58af5c27235df51ea2335235b8e0aa88dd425b359c76d344369212e4fe25c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76c58af5c27235df51ea2335235b8e0aa88dd425b359c76d344369212e4fe25c", kill_on_drop: false }`
[INFO] [stdout] 76c58af5c27235df51ea2335235b8e0aa88dd425b359c76d344369212e4fe25c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 30f285e8208b3f3179d03d711dd43a9a9d7c3cfd023ec156ab277cb9cae8340a
[INFO] running `Command { std: "docker" "start" "-a" "30f285e8208b3f3179d03d711dd43a9a9d7c3cfd023ec156ab277cb9cae8340a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rdbms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::language::ast::AST::Insert`
[INFO] [stdout]  --> src/language/parser.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::language::ast::AST::Insert;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::language::ast::AST::Insert`
[INFO] [stdout]  --> src/language/parser.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::language::ast::AST::Insert;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `String`
[INFO] [stdout]   --> src/language/lexer.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     String(String)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `String`
[INFO] [stdout]   --> src/language/lexer.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     String(String)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "30f285e8208b3f3179d03d711dd43a9a9d7c3cfd023ec156ab277cb9cae8340a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30f285e8208b3f3179d03d711dd43a9a9d7c3cfd023ec156ab277cb9cae8340a", kill_on_drop: false }`
[INFO] [stdout] 30f285e8208b3f3179d03d711dd43a9a9d7c3cfd023ec156ab277cb9cae8340a