[INFO] cloning repository https://github.com/FixpointOfBeing/system_f_check
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FixpointOfBeing/system_f_check" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFixpointOfBeing%2Fsystem_f_check", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFixpointOfBeing%2Fsystem_f_check'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 295b72f51cf953c086b2d0d7be7edfb588130fca
[INFO] checking FixpointOfBeing/system_f_check against 011c518242557d21690f7936b5812318dc2fec47 for pr-159877
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFixpointOfBeing%2Fsystem_f_check" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/FixpointOfBeing/system_f_check
[INFO] finished tweaking git repo https://github.com/FixpointOfBeing/system_f_check
[INFO] tweaked toml for git repo https://github.com/FixpointOfBeing/system_f_check written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/FixpointOfBeing/system_f_check on toolchain 011c518242557d21690f7936b5812318dc2fec47
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+011c518242557d21690f7936b5812318dc2fec47" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/FixpointOfBeing/system_f_check already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+011c518242557d21690f7936b5812318dc2fec47" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking FixpointOfBeing/system_f_check against 011c518242557d21690f7936b5812318dc2fec47 for pr-159877
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFixpointOfBeing%2Fsystem_f_check" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/FixpointOfBeing/system_f_check
[INFO] finished tweaking git repo https://github.com/FixpointOfBeing/system_f_check
[INFO] tweaked toml for git repo https://github.com/FixpointOfBeing/system_f_check written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/FixpointOfBeing/system_f_check on toolchain 011c518242557d21690f7936b5812318dc2fec47
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+011c518242557d21690f7936b5812318dc2fec47" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/FixpointOfBeing/system_f_check already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+011c518242557d21690f7936b5812318dc2fec47" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:1fa6594d87c8fa7b311925a7a77a16f539833322d9dfba4ce891f211db2f90b1" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 97d5a3791901e2d447470f59e5d5ee88af8ea91029f6d0469387fa555626dd6b
[INFO] running `Command { std: "docker" "start" "97d5a3791901e2d447470f59e5d5ee88af8ea91029f6d0469387fa555626dd6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97d5a3791901e2d447470f59e5d5ee88af8ea91029f6d0469387fa555626dd6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "97d5a3791901e2d447470f59e5d5ee88af8ea91029f6d0469387fa555626dd6b" "/opt/rustwide/cargo-home/bin/cargo" "+011c518242557d21690f7936b5812318dc2fec47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97d5a3791901e2d447470f59e5d5ee88af8ea91029f6d0469387fa555626dd6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "97d5a3791901e2d447470f59e5d5ee88af8ea91029f6d0469387fa555626dd6b" "/opt/rustwide/cargo-home/bin/cargo" "+011c518242557d21690f7936b5812318dc2fec47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling siphasher v1.0.1
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling fixedbitset v0.5.7
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling keccak v0.1.5
[INFO] [stderr]    Compiling bit-vec v0.8.0
[INFO] [stderr]    Compiling term v1.2.0
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling ena v0.14.3
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling pico-args v0.5.0
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling petgraph v0.7.1
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling bit-set v0.8.0
[INFO] [stderr]    Compiling sha3 v0.10.8
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking fd-lock v4.0.4
[INFO] [stderr]     Checking log v0.4.28
[INFO] [stderr]    Compiling ascii-canvas v4.0.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling string_cache v0.8.9
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking lalrpop-util v0.22.2
[INFO] [stderr]     Checking rustyline v17.0.2
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling lalrpop v0.22.2
[INFO] [stderr]    Compiling system_f_check v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `name_ty`
[INFO] [stdout]    --> src/check.rs:241:22
[INFO] [stdout]     |
[INFO] [stdout] 241 |         Expr::Unpack(name_ty, name_expr, expr1, body) => {
[INFO] [stdout]     |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name_ty`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/check.rs:245:30
[INFO] [stdout]     |
[INFO] [stdout] 245 |                 Type::TySome(name, ty2) => {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_numeric_value` is never used
[INFO] [stdout]   --> src/ast.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | impl Expr {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 87 |     fn is_numeric_value(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `recover_expr_var` is never used
[INFO] [stdout]    --> src/ast.rs:169:12
[INFO] [stdout]     |
[INFO] [stdout] 146 | impl GenSym {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 169 |     pub fn recover_expr_var(&self, new_name: &String) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `recover_expr` is never used
[INFO] [stdout]    --> src/ast.rs:369:8
[INFO] [stdout]     |
[INFO] [stdout] 369 | pub fn recover_expr(gensym: &GenSym, expr: &Expr) -> Expr {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name_ty`
[INFO] [stdout]    --> src/check.rs:241:22
[INFO] [stdout]     |
[INFO] [stdout] 241 |         Expr::Unpack(name_ty, name_expr, expr1, body) => {
[INFO] [stdout]     |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name_ty`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/check.rs:245:30
[INFO] [stdout]     |
[INFO] [stdout] 245 |                 Type::TySome(name, ty2) => {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_numeric_value` is never used
[INFO] [stdout]   --> src/ast.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | impl Expr {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 87 |     fn is_numeric_value(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `recover_expr_var` is never used
[INFO] [stdout]    --> src/ast.rs:169:12
[INFO] [stdout]     |
[INFO] [stdout] 146 | impl GenSym {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 169 |     pub fn recover_expr_var(&self, new_name: &String) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `recover_expr` is never used
[INFO] [stdout]    --> src/ast.rs:369:8
[INFO] [stdout]     |
[INFO] [stdout] 369 | pub fn recover_expr(gensym: &GenSym, expr: &Expr) -> Expr {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.92s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nix v0.30.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 7`
[INFO] running `Command { std: "docker" "inspect" "97d5a3791901e2d447470f59e5d5ee88af8ea91029f6d0469387fa555626dd6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97d5a3791901e2d447470f59e5d5ee88af8ea91029f6d0469387fa555626dd6b", kill_on_drop: false }`
[INFO] [stdout] 97d5a3791901e2d447470f59e5d5ee88af8ea91029f6d0469387fa555626dd6b
