[INFO] fetching crate KittenVM 1.0.0-4...
[INFO] checking KittenVM-1.0.0-4 against master#e59540968e0c6fc3c37d92a639b83fc8fcee5e81 for pr-114559
[INFO] extracting crate KittenVM 1.0.0-4 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate KittenVM 1.0.0-4 on toolchain e59540968e0c6fc3c37d92a639b83fc8fcee5e81
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate KittenVM 1.0.0-4
[INFO] finished tweaking crates.io crate KittenVM 1.0.0-4
[INFO] tweaked toml for crates.io crate KittenVM 1.0.0-4 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded autocfg v1.1.0
[INFO] [stderr]   Downloaded pin-project-lite v0.2.11
[INFO] [stderr]   Downloaded syn v2.0.28
[INFO] [stderr]   Downloaded once_cell v1.18.0
[INFO] [stderr]   Downloaded tracing v0.1.37
[INFO] [stderr]   Downloaded num-traits v0.2.16
[INFO] [stderr]   Downloaded tracing-core v0.1.31
[INFO] [stderr]   Downloaded tracing-attributes v0.1.26
[INFO] [stderr]   Downloaded tokio v1.29.1
[INFO] [stderr]   Downloaded anyhow v1.0.72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 764a7bb8d33a12a33732fa72e6625682c68f839ed35d17ac6856da6c5d4ad7a3
[INFO] running `Command { std: "docker" "start" "-a" "764a7bb8d33a12a33732fa72e6625682c68f839ed35d17ac6856da6c5d4ad7a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "764a7bb8d33a12a33732fa72e6625682c68f839ed35d17ac6856da6c5d4ad7a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "764a7bb8d33a12a33732fa72e6625682c68f839ed35d17ac6856da6c5d4ad7a3", kill_on_drop: false }`
[INFO] [stdout] 764a7bb8d33a12a33732fa72e6625682c68f839ed35d17ac6856da6c5d4ad7a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e8ee98f98ffc4be17fa36d6049a9af3382a583c4144cd937f297290ef531fc4
[INFO] running `Command { std: "docker" "start" "-a" "9e8ee98f98ffc4be17fa36d6049a9af3382a583c4144cd937f297290ef531fc4", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling anyhow v1.0.72
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking pin-project-lite v0.2.11
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking KittenVM v1.0.0-4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `num_traits::NumOps`
[INFO] [stdout]  --> src/api/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use num_traits::NumOps;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `str::FromStr`, `sync::Arc`
[INFO] [stdout]  --> src/api/mod.rs:4:23
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{path::Path, str::FromStr, sync::Arc};
[INFO] [stdout]   |                       ^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num_traits::NumOps`
[INFO] [stdout]  --> src/api/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use num_traits::NumOps;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `str::FromStr`, `sync::Arc`
[INFO] [stdout]  --> src/api/mod.rs:4:23
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{path::Path, str::FromStr, sync::Arc};
[INFO] [stdout]   |                       ^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `int` should have an upper camel case name
[INFO] [stdout]  --> src/vm/value_type.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     int(i128),
[INFO] [stdout]   |     ^^^ help: convert the identifier to upper camel case (notice the capitalization): `Int`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `nnint` should have an upper camel case name
[INFO] [stdout]  --> src/vm/value_type.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     nnint(usize),
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to upper camel case: `Nnint`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `fract` should have an upper camel case name
[INFO] [stdout]  --> src/vm/value_type.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fract(f64),
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Fract`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `bool` should have an upper camel case name
[INFO] [stdout]   --> src/vm/value_type.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     bool(bool),
[INFO] [stdout]    |     ^^^^ help: convert the identifier to upper camel case: `Bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `char` should have an upper camel case name
[INFO] [stdout]   --> src/vm/value_type.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     char(char),
[INFO] [stdout]    |     ^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `none` should have an upper camel case name
[INFO] [stdout]   --> src/vm/value_type.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     none,
[INFO] [stdout]    |     ^^^^ help: convert the identifier to upper camel case: `None`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `int` should have an upper camel case name
[INFO] [stdout]  --> src/vm/value_type.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     int(i128),
[INFO] [stdout]   |     ^^^ help: convert the identifier to upper camel case (notice the capitalization): `Int`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `nnint` should have an upper camel case name
[INFO] [stdout]  --> src/vm/value_type.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     nnint(usize),
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to upper camel case: `Nnint`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `fract` should have an upper camel case name
[INFO] [stdout]  --> src/vm/value_type.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fract(f64),
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Fract`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `bool` should have an upper camel case name
[INFO] [stdout]   --> src/vm/value_type.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     bool(bool),
[INFO] [stdout]    |     ^^^^ help: convert the identifier to upper camel case: `Bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `char` should have an upper camel case name
[INFO] [stdout]   --> src/vm/value_type.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     char(char),
[INFO] [stdout]    |     ^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `none` should have an upper camel case name
[INFO] [stdout]   --> src/vm/value_type.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     none,
[INFO] [stdout]    |     ^^^^ help: convert the identifier to upper camel case: `None`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `run`
[INFO] [stdout]  --> src/test/init.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |         let run: KittenVM = vm::machine::KittenVM::default();
[INFO] [stdout]   |             ^^^ help: if this is intentional, prefix it with an underscore: `_run`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]  --> src/test/useit.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let a = run.dynamic_memory.new_mem(vm::value_type::Type::int(36));
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Safe` is never constructed
[INFO] [stdout]  --> src/api/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum SafeMode {
[INFO] [stdout]   |      -------- variant in this enum
[INFO] [stdout] 7 |     Safe,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `SimpleGC` is never constructed
[INFO] [stdout]   --> src/api/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum GCMode {
[INFO] [stdout]    |      ------ variant in this enum
[INFO] [stdout] 12 |     SimpleGC,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `safe_mode` and `gc_mode` are never read
[INFO] [stdout]   --> src/api/mod.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Mode {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 16 |     safe_mode: SafeMode,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 17 |     gc_mode: GCMode,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Working` and `Free` are never constructed
[INFO] [stdout]  --> src/vm/machine.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum Status {
[INFO] [stdout]   |      ------ variants in this enum
[INFO] [stdout] 8 |     Working,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 9 |     Free,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `status` is never read
[INFO] [stdout]   --> src/vm/machine.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct KittenVM {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 22 |     status: Status,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `KittenVM` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `kitten_vm`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Pool` should have a snake case name
[INFO] [stdout]  --> src/vm/const_pool.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Pool: HashMap<String, usize>,
[INFO] [stdout]   |     ^^^^ help: convert the identifier to snake case: `pool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Safe` is never constructed
[INFO] [stdout]  --> src/api/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum SafeMode {
[INFO] [stdout]   |      -------- variant in this enum
[INFO] [stdout] 7 |     Safe,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `SimpleGC` is never constructed
[INFO] [stdout]   --> src/api/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum GCMode {
[INFO] [stdout]    |      ------ variant in this enum
[INFO] [stdout] 12 |     SimpleGC,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `safe_mode` and `gc_mode` are never read
[INFO] [stdout]   --> src/api/mod.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Mode {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 16 |     safe_mode: SafeMode,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 17 |     gc_mode: GCMode,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Working` and `Free` are never constructed
[INFO] [stdout]  --> src/vm/machine.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum Status {
[INFO] [stdout]   |      ------ variants in this enum
[INFO] [stdout] 8 |     Working,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 9 |     Free,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `status` is never read
[INFO] [stdout]   --> src/vm/machine.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct KittenVM {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 22 |     status: Status,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `KittenVM` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `kitten_vm`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Pool` should have a snake case name
[INFO] [stdout]  --> src/vm/const_pool.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Pool: HashMap<String, usize>,
[INFO] [stdout]   |     ^^^^ help: convert the identifier to snake case: `pool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/vm/dynamic_memory.rs:121:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |             drop(&self.stack.value[*i]);
[INFO] [stdout]     |             ^^^^^---------------------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&Arc<Type>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/vm/dynamic_memory.rs:121:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |             drop(&self.stack.value[*i]);
[INFO] [stdout]     |             ^^^^^---------------------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&Arc<Type>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.40s
[INFO] running `Command { std: "docker" "inspect" "9e8ee98f98ffc4be17fa36d6049a9af3382a583c4144cd937f297290ef531fc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e8ee98f98ffc4be17fa36d6049a9af3382a583c4144cd937f297290ef531fc4", kill_on_drop: false }`
[INFO] [stdout] 9e8ee98f98ffc4be17fa36d6049a9af3382a583c4144cd937f297290ef531fc4
