[INFO] cloning repository https://github.com/j0ru/splc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/j0ru/splc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj0ru%2Fsplc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj0ru%2Fsplc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a0d9abc2c345a3389cd3cc743af1f299ecfe58be
[INFO] checking j0ru/splc against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj0ru%2Fsplc" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/j0ru/splc on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/j0ru/splc
[INFO] finished tweaking git repo https://github.com/j0ru/splc
[INFO] tweaked toml for git repo https://github.com/j0ru/splc written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/j0ru/splc 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 602209abd130dac996e088b09570b07a98e7f9692f21f876101bed45477609e7
[INFO] running `Command { std: "docker" "start" "-a" "602209abd130dac996e088b09570b07a98e7f9692f21f876101bed45477609e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "602209abd130dac996e088b09570b07a98e7f9692f21f876101bed45477609e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "602209abd130dac996e088b09570b07a98e7f9692f21f876101bed45477609e7", kill_on_drop: false }`
[INFO] [stdout] 602209abd130dac996e088b09570b07a98e7f9692f21f876101bed45477609e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bac6b78df4de12ac5763dc4b2539693848995895e42eefa1391e92aa895067b6
[INFO] running `Command { std: "docker" "start" "-a" "bac6b78df4de12ac5763dc4b2539693848995895e42eefa1391e92aa895067b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling ena v0.14.3
[INFO] [stderr]    Compiling pico-args v0.5.0
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]    Compiling string_cache v0.8.7
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]     Checking lalrpop-util v0.20.2
[INFO] [stderr]    Compiling regex v1.10.5
[INFO] [stderr]    Compiling lalrpop v0.20.2
[INFO] [stderr]    Compiling splc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/ast.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Ident(String),
[INFO] [stdout]    |     ----- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Ident(()),
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Error` is never used
[INFO] [stdout]  --> src/environment.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Error {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EnvironmentStack` is never constructed
[INFO] [stdout]  --> src/environment.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct EnvironmentStack<'a> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]   --> src/environment.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<'a> EnvironmentStack<'a> {
[INFO] [stdout]    | ----------------------------- method in this implementation
[INFO] [stdout] 13 |     pub fn get(&self, key: &str) -> Option<&DataType> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Integer` and `Float` are never constructed
[INFO] [stdout]   --> src/environment.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub enum DataType {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] 26 |     Integer(i32),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 27 |     Float(f32),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DataType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mappings` is never read
[INFO] [stdout]   --> src/environment.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Environment<'a> {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 32 |     mappings: HashMap<&'a str, DataType>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Environment` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `define`, `get`, and `set` are never used
[INFO] [stdout]   --> src/environment.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl<'a> Environment<'a> {
[INFO] [stdout]    | ------------------------ methods in this implementation
[INFO] [stdout] 36 |     pub fn define(&mut self, key: &'a str, value: DataType) -> Result<(), Error> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn get(&self, key: &str) -> Option<&DataType> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn set(&mut self, key: &'a str, val: DataType) -> Result<DataType, Error> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/ast.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Ident(String),
[INFO] [stdout]    |     ----- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Ident(()),
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Error` is never used
[INFO] [stdout]  --> src/environment.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Error {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EnvironmentStack` is never constructed
[INFO] [stdout]  --> src/environment.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct EnvironmentStack<'a> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]   --> src/environment.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<'a> EnvironmentStack<'a> {
[INFO] [stdout]    | ----------------------------- method in this implementation
[INFO] [stdout] 13 |     pub fn get(&self, key: &str) -> Option<&DataType> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Integer` and `Float` are never constructed
[INFO] [stdout]   --> src/environment.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub enum DataType {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] 26 |     Integer(i32),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 27 |     Float(f32),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DataType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mappings` is never read
[INFO] [stdout]   --> src/environment.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Environment<'a> {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 32 |     mappings: HashMap<&'a str, DataType>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Environment` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `define`, `get`, and `set` are never used
[INFO] [stdout]   --> src/environment.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl<'a> Environment<'a> {
[INFO] [stdout]    | ------------------------ methods in this implementation
[INFO] [stdout] 36 |     pub fn define(&mut self, key: &'a str, value: DataType) -> Result<(), Error> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn get(&self, key: &str) -> Option<&DataType> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn set(&mut self, key: &'a str, val: DataType) -> Result<DataType, Error> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.30s
[INFO] running `Command { std: "docker" "inspect" "bac6b78df4de12ac5763dc4b2539693848995895e42eefa1391e92aa895067b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bac6b78df4de12ac5763dc4b2539693848995895e42eefa1391e92aa895067b6", kill_on_drop: false }`
[INFO] [stdout] bac6b78df4de12ac5763dc4b2539693848995895e42eefa1391e92aa895067b6