[INFO] fetching crate rust_lisp 0.2.0...
[INFO] checking rust_lisp-0.2.0 against try#4a04890980766cc79878135f5ade8c0c4321e943 for pr-65819
[INFO] extracting crate rust_lisp 0.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rust_lisp 0.2.0 on toolchain 4a04890980766cc79878135f5ade8c0c4321e943
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_lisp 0.2.0
[INFO] finished tweaking crates.io crate rust_lisp 0.2.0
[INFO] tweaked toml for crates.io crate rust_lisp 0.2.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate rust_lisp 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dcbcf87ac83d1cdad465b1adc8984a53d70c9a3b67627369767a81b6d70beecb
[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" "dcbcf87ac83d1cdad465b1adc8984a53d70c9a3b67627369767a81b6d70beecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcbcf87ac83d1cdad465b1adc8984a53d70c9a3b67627369767a81b6d70beecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcbcf87ac83d1cdad465b1adc8984a53d70c9a3b67627369767a81b6d70beecb", kill_on_drop: false }`
[INFO] [stdout] dcbcf87ac83d1cdad465b1adc8984a53d70c9a3b67627369767a81b6d70beecb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23c865f595ab787bcc7274321d23f3c806f91be6995382f3755a97494a392d89
[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" "23c865f595ab787bcc7274321d23f3c806f91be6995382f3755a97494a392d89", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rust_lisp v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `func`
[INFO] [stdout]   --> src/model.rs:39:25
[INFO] [stdout]    |
[INFO] [stdout] 39 |       Value::TailCall { func, args } => "tail call",
[INFO] [stdout]    |                         ^^^^ help: try ignoring the field: `func: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/model.rs:39:31
[INFO] [stdout]    |
[INFO] [stdout] 39 |       Value::TailCall { func, args } => "tail call",
[INFO] [stdout]    |                               ^^^^ help: try ignoring the field: `args: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func`
[INFO] [stdout]    --> src/model.rs:200:25
[INFO] [stdout]     |
[INFO] [stdout] 200 |       Value::TailCall { func, args } => None,
[INFO] [stdout]     |                         ^^^^ help: try ignoring the field: `func: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/model.rs:200:31
[INFO] [stdout]     |
[INFO] [stdout] 200 |       Value::TailCall { func, args } => None,
[INFO] [stdout]     |                               ^^^^ help: try ignoring the field: `args: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/model.rs:288:16
[INFO] [stdout]     |
[INFO] [stdout] 288 |   fn eq(&self, other: &Self) -> bool {
[INFO] [stdout]     |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func`
[INFO] [stdout]   --> src/model.rs:39:25
[INFO] [stdout]    |
[INFO] [stdout] 39 |       Value::TailCall { func, args } => "tail call",
[INFO] [stdout]    |                         ^^^^ help: try ignoring the field: `func: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/model.rs:39:31
[INFO] [stdout]    |
[INFO] [stdout] 39 |       Value::TailCall { func, args } => "tail call",
[INFO] [stdout]    |                               ^^^^ help: try ignoring the field: `args: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func`
[INFO] [stdout]    --> src/model.rs:200:25
[INFO] [stdout]     |
[INFO] [stdout] 200 |       Value::TailCall { func, args } => None,
[INFO] [stdout]     |                         ^^^^ help: try ignoring the field: `func: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/model.rs:200:31
[INFO] [stdout]     |
[INFO] [stdout] 200 |       Value::TailCall { func, args } => None,
[INFO] [stdout]     |                               ^^^^ help: try ignoring the field: `args: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/model.rs:288:16
[INFO] [stdout]     |
[INFO] [stdout] 288 |   fn eq(&self, other: &Self) -> bool {
[INFO] [stdout]     |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func`
[INFO] [stdout]   --> src/model.rs:39:25
[INFO] [stdout]    |
[INFO] [stdout] 39 |       Value::TailCall { func, args } => "tail call",
[INFO] [stdout]    |                         ^^^^ help: try ignoring the field: `func: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/model.rs:39:31
[INFO] [stdout]    |
[INFO] [stdout] 39 |       Value::TailCall { func, args } => "tail call",
[INFO] [stdout]    |                               ^^^^ help: try ignoring the field: `args: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func`
[INFO] [stdout]    --> src/model.rs:200:25
[INFO] [stdout]     |
[INFO] [stdout] 200 |       Value::TailCall { func, args } => None,
[INFO] [stdout]     |                         ^^^^ help: try ignoring the field: `func: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/model.rs:200:31
[INFO] [stdout]     |
[INFO] [stdout] 200 |       Value::TailCall { func, args } => None,
[INFO] [stdout]     |                               ^^^^ help: try ignoring the field: `args: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/model.rs:288:16
[INFO] [stdout]     |
[INFO] [stdout] 288 |   fn eq(&self, other: &Self) -> bool {
[INFO] [stdout]     |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func`
[INFO] [stdout]   --> src/model.rs:39:25
[INFO] [stdout]    |
[INFO] [stdout] 39 |       Value::TailCall { func, args } => "tail call",
[INFO] [stdout]    |                         ^^^^ help: try ignoring the field: `func: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/model.rs:39:31
[INFO] [stdout]    |
[INFO] [stdout] 39 |       Value::TailCall { func, args } => "tail call",
[INFO] [stdout]    |                               ^^^^ help: try ignoring the field: `args: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func`
[INFO] [stdout]    --> src/model.rs:200:25
[INFO] [stdout]     |
[INFO] [stdout] 200 |       Value::TailCall { func, args } => None,
[INFO] [stdout]     |                         ^^^^ help: try ignoring the field: `func: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/model.rs:200:31
[INFO] [stdout]     |
[INFO] [stdout] 200 |       Value::TailCall { func, args } => None,
[INFO] [stdout]     |                               ^^^^ help: try ignoring the field: `args: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/model.rs:288:16
[INFO] [stdout]     |
[INFO] [stdout] 288 |   fn eq(&self, other: &Self) -> bool {
[INFO] [stdout]     |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "23c865f595ab787bcc7274321d23f3c806f91be6995382f3755a97494a392d89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23c865f595ab787bcc7274321d23f3c806f91be6995382f3755a97494a392d89", kill_on_drop: false }`
[INFO] [stdout] 23c865f595ab787bcc7274321d23f3c806f91be6995382f3755a97494a392d89