[INFO] cloning repository https://github.com/Mojashi/abs_tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Mojashi/abs_tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMojashi%2Fabs_tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMojashi%2Fabs_tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 81aade13db210282b1fdf2a30540f0a043b10bce
[INFO] checking Mojashi/abs_tree against try#446cb600aa4837dd6c513f14fa0d25a909b177d7 for pr-149195
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMojashi%2Fabs_tree" "/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/Mojashi/abs_tree
[INFO] finished tweaking git repo https://github.com/Mojashi/abs_tree
[INFO] tweaked toml for git repo https://github.com/Mojashi/abs_tree written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Mojashi/abs_tree on toolchain 446cb600aa4837dd6c513f14fa0d25a909b177d7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Mojashi/abs_tree 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" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 238b190d283be91c7eca78d54d5b259b61842a0257851ff04d4d65ae3fbf50f4
[INFO] running `Command { std: "docker" "start" "-a" "238b190d283be91c7eca78d54d5b259b61842a0257851ff04d4d65ae3fbf50f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "238b190d283be91c7eca78d54d5b259b61842a0257851ff04d4d65ae3fbf50f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "238b190d283be91c7eca78d54d5b259b61842a0257851ff04d4d65ae3fbf50f4", kill_on_drop: false }`
[INFO] [stdout] 238b190d283be91c7eca78d54d5b259b61842a0257851ff04d4d65ae3fbf50f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbc46d35168a70f86ecd84049d735f2509f901a0a7a4f3e5d6646d040c403323
[INFO] running `Command { std: "docker" "start" "-a" "dbc46d35168a70f86ecd84049d735f2509f901a0a7a4f3e5d6646d040c403323", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.16
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling serde_json v1.0.138
[INFO] [stderr]     Checking ryu v1.0.19
[INFO] [stderr]     Checking itoa v1.0.14
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking abs_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/trs/ictrs.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::{HashMap, HashSet}, fmt::{self, Display}};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/trs/term.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fmt::{self, write, Display},
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `iter::Map`
[INFO] [stdout]  --> src/tree_automaton/apply_trs_rule.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     iter::Map,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ITRS`
[INFO] [stdout]  --> src/util.rs:9:24
[INFO] [stdout]   |
[INFO] [stdout] 9 |         ictrs::{ICTRS, ITRS},
[INFO] [stdout]   |                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]   --> src/coco.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use itertools::Itertools;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/trs/ictrs.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::{HashMap, HashSet}, fmt::{self, Display}};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/trs/term.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fmt::{self, write, Display},
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `iter::Map`
[INFO] [stdout]  --> src/tree_automaton/apply_trs_rule.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     iter::Map,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ITRS`
[INFO] [stdout]  --> src/util.rs:9:24
[INFO] [stdout]   |
[INFO] [stdout] 9 |         ictrs::{ICTRS, ITRS},
[INFO] [stdout]   |                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/barmc/barmc.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |           return vec![];
[INFO] [stdout]     |           ------------- any code following this expression is unreachable
[INFO] [stdout] 161 | /         self.reachable_frontier
[INFO] [stdout] 162 | |             .iter()
[INFO] [stdout] 163 | |             .map(|(_, id)| id)
[INFO] [stdout] 164 | |             .filter(|other_id| {
[INFO] [stdout] ...   |
[INFO] [stdout] 170 | |             .cloned()
[INFO] [stdout] 171 | |             .collect_vec()
[INFO] [stdout]     | |__________________________^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/barmc/barmc.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |           return vec![];
[INFO] [stdout]     |           ------------- any code following this expression is unreachable
[INFO] [stdout] 161 | /         self.reachable_frontier
[INFO] [stdout] 162 | |             .iter()
[INFO] [stdout] 163 | |             .map(|(_, id)| id)
[INFO] [stdout] 164 | |             .filter(|other_id| {
[INFO] [stdout] ...   |
[INFO] [stdout] 170 | |             .cloned()
[INFO] [stdout] 171 | |             .collect_vec()
[INFO] [stdout]     | |__________________________^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]    --> src/barmc/barmc.rs:159:40
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn find_concretize_node_for(&self, node: &Node<T>) -> Vec<NodeId> {
[INFO] [stdout]     |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]    --> src/barmc/barmc.rs:159:40
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn find_concretize_node_for(&self, node: &Node<T>) -> Vec<NodeId> {
[INFO] [stdout]     |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tree_automaton/apply_trs_rule.rs:125:21
[INFO] [stdout]     |
[INFO] [stdout] 125 |                 let mut assignment: Vec<Assignment> = self.pattern_match_aux(position, &pattern);
[INFO] [stdout]     |                     ----^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_query_rhs_ground`
[INFO] [stdout]   --> src/util.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let is_query_rhs_ground = itrs.query.rhs.is_ground();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_query_rhs_ground`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_invariant` and `find_most_abstract` are never used
[INFO] [stdout]    --> src/barmc/barmc.rs:423:8
[INFO] [stdout]     |
[INFO] [stdout]  75 | impl<'a, T: TransitionSystem> BARMC<T> {
[INFO] [stdout]     | -------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 423 |     fn get_invariant(&mut self) -> Vec<Node<T>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 436 |     fn find_most_abstract(&self, node: &Node<T>) -> NodeId {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]    --> src/trs/term.rs:279:14
[INFO] [stdout]     |
[INFO] [stdout] 279 |     unsafe { SYMBOL_COUNTER.fetch_add(1, std::sync::atomic::Ordering::SeqCst) }
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]     = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]   --> src/tree_automaton/tree_automaton.rs:21:14
[INFO] [stdout]    |
[INFO] [stdout] 21 |     unsafe { STATE_COUNTER.fetch_add(1, std::sync::atomic::Ordering::SeqCst) }
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tree_automaton/apply_trs_rule.rs:125:21
[INFO] [stdout]     |
[INFO] [stdout] 125 |                 let mut assignment: Vec<Assignment> = self.pattern_match_aux(position, &pattern);
[INFO] [stdout]     |                     ----^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_query_rhs_ground`
[INFO] [stdout]   --> src/util.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let is_query_rhs_ground = itrs.query.rhs.is_ground();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_query_rhs_ground`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_invariant` and `find_most_abstract` are never used
[INFO] [stdout]    --> src/barmc/barmc.rs:423:8
[INFO] [stdout]     |
[INFO] [stdout]  75 | impl<'a, T: TransitionSystem> BARMC<T> {
[INFO] [stdout]     | -------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 423 |     fn get_invariant(&mut self) -> Vec<Node<T>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 436 |     fn find_most_abstract(&self, node: &Node<T>) -> NodeId {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]    --> src/trs/term.rs:279:14
[INFO] [stdout]     |
[INFO] [stdout] 279 |     unsafe { SYMBOL_COUNTER.fetch_add(1, std::sync::atomic::Ordering::SeqCst) }
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]     = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]   --> src/tree_automaton/tree_automaton.rs:21:14
[INFO] [stdout]    |
[INFO] [stdout] 21 |     unsafe { STATE_COUNTER.fetch_add(1, std::sync::atomic::Ordering::SeqCst) }
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.21s
[INFO] running `Command { std: "docker" "inspect" "dbc46d35168a70f86ecd84049d735f2509f901a0a7a4f3e5d6646d040c403323", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbc46d35168a70f86ecd84049d735f2509f901a0a7a4f3e5d6646d040c403323", kill_on_drop: false }`
[INFO] [stdout] dbc46d35168a70f86ecd84049d735f2509f901a0a7a4f3e5d6646d040c403323
