[INFO] cloning repository https://github.com/kamocyc/rust_lisp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kamocyc/rust_lisp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamocyc%2Frust_lisp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamocyc%2Frust_lisp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cbf8959f235c846ae007cb0d9daf740e808db716
[INFO] testing kamocyc/rust_lisp against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamocyc%2Frust_lisp" "/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/kamocyc/rust_lisp on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kamocyc/rust_lisp
[INFO] finished tweaking git repo https://github.com/kamocyc/rust_lisp
[INFO] tweaked toml for git repo https://github.com/kamocyc/rust_lisp written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/kamocyc/rust_lisp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", 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] ff88afd40dbd06b0b45b49251e23f69c5fb949ec5ae5eb0faf96d20a67cd8bb0
[INFO] running `Command { std: "docker" "start" "-a" "ff88afd40dbd06b0b45b49251e23f69c5fb949ec5ae5eb0faf96d20a67cd8bb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff88afd40dbd06b0b45b49251e23f69c5fb949ec5ae5eb0faf96d20a67cd8bb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff88afd40dbd06b0b45b49251e23f69c5fb949ec5ae5eb0faf96d20a67cd8bb0", kill_on_drop: false }`
[INFO] [stdout] ff88afd40dbd06b0b45b49251e23f69c5fb949ec5ae5eb0faf96d20a67cd8bb0
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 292e4812b040ce84c8bfcd23307fcc0c23409dfd5fe2cd88099a466489738064
[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" "292e4812b040ce84c8bfcd23307fcc0c23409dfd5fe2cd88099a466489738064", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_lisp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Stack`
[INFO] [stdout]    --> src/main.rs:154:8
[INFO] [stdout]     |
[INFO] [stdout] 154 | struct Stack<T> {
[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: `new`
[INFO] [stdout]    --> src/main.rs:160:10
[INFO] [stdout]     |
[INFO] [stdout] 160 |   pub fn new() -> Stack<T> {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push`
[INFO] [stdout]    --> src/main.rs:167:10
[INFO] [stdout]     |
[INFO] [stdout] 167 |   pub fn push(&mut self, elem: T) {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop`
[INFO] [stdout]    --> src/main.rs:172:10
[INFO] [stdout]     |
[INFO] [stdout] 172 |   pub fn pop(&mut self) -> T {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "292e4812b040ce84c8bfcd23307fcc0c23409dfd5fe2cd88099a466489738064", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "292e4812b040ce84c8bfcd23307fcc0c23409dfd5fe2cd88099a466489738064", kill_on_drop: false }`
[INFO] [stdout] 292e4812b040ce84c8bfcd23307fcc0c23409dfd5fe2cd88099a466489738064
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a72c915e0567891050524ab4e4077aee2d5f9731711389f316fa74ba50d385ef
[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" "a72c915e0567891050524ab4e4077aee2d5f9731711389f316fa74ba50d385ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_lisp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Stack`
[INFO] [stdout]    --> src/main.rs:154:8
[INFO] [stdout]     |
[INFO] [stdout] 154 | struct Stack<T> {
[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: `new`
[INFO] [stdout]    --> src/main.rs:160:10
[INFO] [stdout]     |
[INFO] [stdout] 160 |   pub fn new() -> Stack<T> {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push`
[INFO] [stdout]    --> src/main.rs:167:10
[INFO] [stdout]     |
[INFO] [stdout] 167 |   pub fn push(&mut self, elem: T) {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop`
[INFO] [stdout]    --> src/main.rs:172:10
[INFO] [stdout]     |
[INFO] [stdout] 172 |   pub fn pop(&mut self) -> T {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "a72c915e0567891050524ab4e4077aee2d5f9731711389f316fa74ba50d385ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a72c915e0567891050524ab4e4077aee2d5f9731711389f316fa74ba50d385ef", kill_on_drop: false }`
[INFO] [stdout] a72c915e0567891050524ab4e4077aee2d5f9731711389f316fa74ba50d385ef
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 79dde0557313052b8e00e2c1283fe0ce2ab6bc5b5cef4353d38404711ea8d190
[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" "79dde0557313052b8e00e2c1283fe0ce2ab6bc5b5cef4353d38404711ea8d190", kill_on_drop: false }`
[INFO] [stderr] warning: struct is never constructed: `Stack`
[INFO] [stderr]    --> src/main.rs:154:8
[INFO] [stderr]     |
[INFO] [stderr] 154 | struct Stack<T> {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/main.rs:160:10
[INFO] [stderr]     |
[INFO] [stderr] 160 |   pub fn new() -> Stack<T> {
[INFO] [stderr]     |          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `push`
[INFO] [stderr]    --> src/main.rs:167:10
[INFO] [stderr]     |
[INFO] [stderr] 167 |   pub fn push(&mut self, elem: T) {
[INFO] [stderr]     |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `pop`
[INFO] [stderr]    --> src/main.rs:172:10
[INFO] [stderr]     |
[INFO] [stderr] 172 |   pub fn pop(&mut self) -> T {
[INFO] [stderr]     |          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_lisp` (bin "rust_lisp" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_lisp-2c907c74cb588fbf)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "79dde0557313052b8e00e2c1283fe0ce2ab6bc5b5cef4353d38404711ea8d190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79dde0557313052b8e00e2c1283fe0ce2ab6bc5b5cef4353d38404711ea8d190", kill_on_drop: false }`
[INFO] [stdout] 79dde0557313052b8e00e2c1283fe0ce2ab6bc5b5cef4353d38404711ea8d190