[INFO] cloning repository https://github.com/rodrigovalle/rlisp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rodrigovalle/rlisp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frodrigovalle%2Frlisp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frodrigovalle%2Frlisp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 55a7317f4a43f2da7910cd7102f5e147a5b8734b
[INFO] checking rodrigovalle/rlisp against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frodrigovalle%2Frlisp" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rodrigovalle/rlisp on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rodrigovalle/rlisp
[INFO] finished tweaking git repo https://github.com/rodrigovalle/rlisp
[INFO] tweaked toml for git repo https://github.com/rodrigovalle/rlisp written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/rodrigovalle/rlisp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dcbce396458efc4efcbdcb7ebb0c1ff9896ddd7308a73fe67a8ec886007f3745
[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" "dcbce396458efc4efcbdcb7ebb0c1ff9896ddd7308a73fe67a8ec886007f3745", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcbce396458efc4efcbdcb7ebb0c1ff9896ddd7308a73fe67a8ec886007f3745", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcbce396458efc4efcbdcb7ebb0c1ff9896ddd7308a73fe67a8ec886007f3745", kill_on_drop: false }`
[INFO] [stdout] dcbce396458efc4efcbdcb7ebb0c1ff9896ddd7308a73fe67a8ec886007f3745
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a395a90aa2d41a9515eac2cfa9922c1854c3541e5dcd6f47362c7996ec8d05fe
[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" "a395a90aa2d41a9515eac2cfa9922c1854c3541e5dcd6f47362c7996ec8d05fe", kill_on_drop: false }`
[INFO] [stderr]     Checking rlisp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `push_env`
[INFO] [stdout]   --> src/env.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn push_env(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop_env`
[INFO] [stdout]   --> src/env.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn pop_env(&mut self) -> Option<HashMap<K, V>> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/eval.rs:71:22
[INFO] [stdout]    |
[INFO] [stdout] 71 |             panic!("'{:?}' is not a valid function")
[INFO] [stdout]    |                      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 71 |             panic!("'{:?}' is not a valid function", ...)
[INFO] [stdout]    |                                                    ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 71 |             panic!("{}", "'{:?}' is not a valid function")
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push_env`
[INFO] [stdout]   --> src/env.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn push_env(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop_env`
[INFO] [stdout]   --> src/env.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn pop_env(&mut self) -> Option<HashMap<K, V>> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/eval.rs:71:22
[INFO] [stdout]    |
[INFO] [stdout] 71 |             panic!("'{:?}' is not a valid function")
[INFO] [stdout]    |                      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 71 |             panic!("'{:?}' is not a valid function", ...)
[INFO] [stdout]    |                                                    ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 71 |             panic!("{}", "'{:?}' is not a valid function")
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "a395a90aa2d41a9515eac2cfa9922c1854c3541e5dcd6f47362c7996ec8d05fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a395a90aa2d41a9515eac2cfa9922c1854c3541e5dcd6f47362c7996ec8d05fe", kill_on_drop: false }`
[INFO] [stdout] a395a90aa2d41a9515eac2cfa9922c1854c3541e5dcd6f47362c7996ec8d05fe