[INFO] cloning repository https://github.com/kbernst30/rust-interpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kbernst30/rust-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkbernst30%2Frust-interpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkbernst30%2Frust-interpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 57caf7ed8ad05b9148838b00a5174849f67bd846
[INFO] checking kbernst30/rust-interpreter against try#e0f03aec47b100bc29555561bd62a99d1bc6aca5 for pr-86231
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkbernst30%2Frust-interpreter" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kbernst30/rust-interpreter on toolchain e0f03aec47b100bc29555561bd62a99d1bc6aca5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kbernst30/rust-interpreter
[INFO] finished tweaking git repo https://github.com/kbernst30/rust-interpreter
[INFO] tweaked toml for git repo https://github.com/kbernst30/rust-interpreter written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/kbernst30/rust-interpreter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2745ab731ef850e5cff46dbccbe7f383a1668c31f49e8d9a800e7cb7c9f5c55
[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" "c2745ab731ef850e5cff46dbccbe7f383a1668c31f49e8d9a800e7cb7c9f5c55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2745ab731ef850e5cff46dbccbe7f383a1668c31f49e8d9a800e7cb7c9f5c55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2745ab731ef850e5cff46dbccbe7f383a1668c31f49e8d9a800e7cb7c9f5c55", kill_on_drop: false }`
[INFO] [stdout] c2745ab731ef850e5cff46dbccbe7f383a1668c31f49e8d9a800e7cb7c9f5c55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8c78ca3c009201c2c2cc84e480828a3aad35c2f0fbef3d24495afb8382d696a
[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" "b8c78ca3c009201c2c2cc84e480828a3aad35c2f0fbef3d24495afb8382d696a", kill_on_drop: false }`
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking hello_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::symbol::Symbol`
[INFO] [stdout]  --> src/interpreter/intr.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::symbol::Symbol;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::symbol::Symbol`
[INFO] [stdout]  --> src/interpreter/intr.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::symbol::Symbol;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/interpreter/intr.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |             _ => panic!("Expression not defined")
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/interpreter/intr.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |             _ => panic!("Expression not defined")
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
[INFO] running `Command { std: "docker" "inspect" "b8c78ca3c009201c2c2cc84e480828a3aad35c2f0fbef3d24495afb8382d696a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8c78ca3c009201c2c2cc84e480828a3aad35c2f0fbef3d24495afb8382d696a", kill_on_drop: false }`
[INFO] [stdout] b8c78ca3c009201c2c2cc84e480828a3aad35c2f0fbef3d24495afb8382d696a