[INFO] cloning repository https://github.com/tedbauer/bril-analyzer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tedbauer/bril-analyzer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftedbauer%2Fbril-analyzer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftedbauer%2Fbril-analyzer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd35e01b262d2b5c2b15f34eb433874cb0f5942a
[INFO] testing tedbauer/bril-analyzer against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftedbauer%2Fbril-analyzer" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tedbauer/bril-analyzer on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tedbauer/bril-analyzer
[INFO] finished tweaking git repo https://github.com/tedbauer/bril-analyzer
[INFO] tweaked toml for git repo https://github.com/tedbauer/bril-analyzer written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/tedbauer/bril-analyzer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa481ae56b38e2d77a7a73e43e82d6c7c058ee30359fd0c57d3457dc39005f68
[INFO] running `Command { std: "docker" "start" "-a" "fa481ae56b38e2d77a7a73e43e82d6c7c058ee30359fd0c57d3457dc39005f68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa481ae56b38e2d77a7a73e43e82d6c7c058ee30359fd0c57d3457dc39005f68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa481ae56b38e2d77a7a73e43e82d6c7c058ee30359fd0c57d3457dc39005f68", kill_on_drop: false }`
[INFO] [stdout] fa481ae56b38e2d77a7a73e43e82d6c7c058ee30359fd0c57d3457dc39005f68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d205aff32c8a454ebb32c654c986839d7dd2b3c88f00ea8702427475fe92e0cb
[INFO] running `Command { std: "docker" "start" "-a" "d205aff32c8a454ebb32c654c986839d7dd2b3c88f00ea8702427475fe92e0cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling bril-analyzer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]  --> src/prog.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[serde(untagged)]
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout] 6 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]   |          --------- the attribute is introduced here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(legacy_derive_helpers)]` on by default
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/prog.rs:13:3
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[serde(untagged)]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 14 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]    |          --------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/prog.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[serde(untagged)]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 20 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]    |          --------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stdout]  --> src/main.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json::Result`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde_json::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json::Result`
[INFO] [stdout]  --> src/prog.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde_json::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/cfg.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::prog`
[INFO] [stdout]  --> src/cfg.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::prog;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read`, `self`
[INFO] [stdout]  --> src/count_divs.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, Read};
[INFO] [stdout]   |               ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::prog`
[INFO] [stdout]  --> src/count_divs.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::prog;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name_to_block`
[INFO] [stdout]   --> src/cfg.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let name_to_block = gen_name_map(&blocks);
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name_to_block`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CFG`
[INFO] [stdout]  --> src/cfg.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct CFG {
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Block`
[INFO] [stdout]   --> src/cfg.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Block<'a> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cfg.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_instr`
[INFO] [stdout]   --> src/cfg.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn add_instr(&mut self, i: &'a Instruction) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_instr`
[INFO] [stdout]   --> src/cfg.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn get_instr(&self, idx: usize) -> &Instruction {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_fresh_name`
[INFO] [stdout]   --> src/cfg.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn gen_fresh_name(prefix: &String, name_map: &HashMap<String, &Block>) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_name_map`
[INFO] [stdout]   --> src/cfg.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn gen_name_map<'a>(blocks: &'a Vec<Block>) -> HashMap<String, &'a Block<'a>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_blocks`
[INFO] [stdout]   --> src/cfg.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn gen_blocks(instrs: &Vec<Instruction>) -> Vec<Block> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_cfg`
[INFO] [stdout]   --> src/cfg.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn gen_cfg(p: Program) -> io::Result<()> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.75s
[INFO] running `Command { std: "docker" "inspect" "d205aff32c8a454ebb32c654c986839d7dd2b3c88f00ea8702427475fe92e0cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d205aff32c8a454ebb32c654c986839d7dd2b3c88f00ea8702427475fe92e0cb", kill_on_drop: false }`
[INFO] [stdout] d205aff32c8a454ebb32c654c986839d7dd2b3c88f00ea8702427475fe92e0cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 958d4bcb20827cca8a25bd254fa35f5d8c7489ee5e65ab3859a156befee96d57
[INFO] running `Command { std: "docker" "start" "-a" "958d4bcb20827cca8a25bd254fa35f5d8c7489ee5e65ab3859a156befee96d57", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bril-analyzer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]  --> src/prog.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[serde(untagged)]
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout] 6 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]   |          --------- the attribute is introduced here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(legacy_derive_helpers)]` on by default
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/prog.rs:13:3
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[serde(untagged)]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 14 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]    |          --------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/prog.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[serde(untagged)]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 20 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]    |          --------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stdout]  --> src/main.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json::Result`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde_json::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json::Result`
[INFO] [stdout]  --> src/prog.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde_json::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/cfg.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::prog`
[INFO] [stdout]  --> src/cfg.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::prog;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read`, `self`
[INFO] [stdout]  --> src/count_divs.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, Read};
[INFO] [stdout]   |               ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::prog`
[INFO] [stdout]  --> src/count_divs.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::prog;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name_to_block`
[INFO] [stdout]   --> src/cfg.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let name_to_block = gen_name_map(&blocks);
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name_to_block`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CFG`
[INFO] [stdout]  --> src/cfg.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct CFG {
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Block`
[INFO] [stdout]   --> src/cfg.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Block<'a> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cfg.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_instr`
[INFO] [stdout]   --> src/cfg.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn add_instr(&mut self, i: &'a Instruction) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_instr`
[INFO] [stdout]   --> src/cfg.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn get_instr(&self, idx: usize) -> &Instruction {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_fresh_name`
[INFO] [stdout]   --> src/cfg.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn gen_fresh_name(prefix: &String, name_map: &HashMap<String, &Block>) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_name_map`
[INFO] [stdout]   --> src/cfg.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn gen_name_map<'a>(blocks: &'a Vec<Block>) -> HashMap<String, &'a Block<'a>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_blocks`
[INFO] [stdout]   --> src/cfg.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn gen_blocks(instrs: &Vec<Instruction>) -> Vec<Block> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_cfg`
[INFO] [stdout]   --> src/cfg.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn gen_cfg(p: Program) -> io::Result<()> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `Command { std: "docker" "inspect" "958d4bcb20827cca8a25bd254fa35f5d8c7489ee5e65ab3859a156befee96d57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "958d4bcb20827cca8a25bd254fa35f5d8c7489ee5e65ab3859a156befee96d57", kill_on_drop: false }`
[INFO] [stdout] 958d4bcb20827cca8a25bd254fa35f5d8c7489ee5e65ab3859a156befee96d57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 65fdabaf1ffab751891ce55209aee00a314704a9119323aa4202b6a18b12ed78
[INFO] running `Command { std: "docker" "start" "-a" "65fdabaf1ffab751891ce55209aee00a314704a9119323aa4202b6a18b12ed78", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]  --> src/prog.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[serde(untagged)]
[INFO] [stderr]   |   ^^^^^
[INFO] [stderr] 6 | #[derive(Serialize, Deserialize)]
[INFO] [stderr]   |          --------- the attribute is introduced here
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(legacy_derive_helpers)]` on by default
[INFO] [stderr]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]   = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]   --> src/prog.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 | #[serde(untagged)]
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 14 | #[derive(Serialize, Deserialize)]
[INFO] [stderr]    |          --------- the attribute is introduced here
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]   --> src/prog.rs:19:3
[INFO] [stderr]    |
[INFO] [stderr] 19 | #[serde(untagged)]
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 20 | #[derive(Serialize, Deserialize)]
[INFO] [stderr]    |          --------- the attribute is introduced here
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stderr]  --> src/main.rs:1:13
[INFO] [stderr]   |
[INFO] [stderr] 1 | use serde::{Deserialize, Serialize};
[INFO] [stderr]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde_json::Result`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use serde_json::Result;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde_json::Result`
[INFO] [stderr]  --> src/prog.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use serde_json::Result;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/cfg.rs:2:21
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{self, Read};
[INFO] [stderr]   |                     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::prog`
[INFO] [stderr]  --> src/cfg.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::prog;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Read`, `self`
[INFO] [stderr]  --> src/count_divs.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{self, Read};
[INFO] [stderr]   |               ^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::prog`
[INFO] [stderr]  --> src/count_divs.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::prog;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name_to_block`
[INFO] [stderr]   --> src/cfg.rs:96:9
[INFO] [stderr]    |
[INFO] [stderr] 96 |     let name_to_block = gen_name_map(&blocks);
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name_to_block`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CFG`
[INFO] [stderr]  --> src/cfg.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct CFG {
[INFO] [stderr]   |            ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Block`
[INFO] [stderr]   --> src/cfg.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct Block<'a> {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/cfg.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add_instr`
[INFO] [stderr]   --> src/cfg.rs:20:12
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn add_instr(&mut self, i: &'a Instruction) {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_instr`
[INFO] [stderr]   --> src/cfg.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn get_instr(&self, idx: usize) -> &Instruction {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gen_fresh_name`
[INFO] [stderr]   --> src/cfg.rs:29:4
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn gen_fresh_name(prefix: &String, name_map: &HashMap<String, &Block>) -> String {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gen_name_map`
[INFO] [stderr]   --> src/cfg.rs:41:4
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn gen_name_map<'a>(blocks: &'a Vec<Block>) -> HashMap<String, &'a Block<'a>> {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gen_blocks`
[INFO] [stderr]   --> src/cfg.rs:58:4
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn gen_blocks(instrs: &Vec<Instruction>) -> Vec<Block> {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gen_cfg`
[INFO] [stderr]   --> src/cfg.rs:94:8
[INFO] [stderr]    |
[INFO] [stderr] 94 | pub fn gen_cfg(p: Program) -> io::Result<()> {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `bril-analyzer` (bin "bril-analyzer" test) generated 20 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.14s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bril_analyzer-a0a1a489274f8cf5)
[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" "65fdabaf1ffab751891ce55209aee00a314704a9119323aa4202b6a18b12ed78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65fdabaf1ffab751891ce55209aee00a314704a9119323aa4202b6a18b12ed78", kill_on_drop: false }`
[INFO] [stdout] 65fdabaf1ffab751891ce55209aee00a314704a9119323aa4202b6a18b12ed78