[INFO] fetching crate derivation_tree 0.1.0... [INFO] testing derivation_tree-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7 [INFO] extracting crate derivation_tree 0.1.0 into /workspace/builds/worker-7-tc1/source [INFO] started tweaking crates.io crate derivation_tree 0.1.0 [INFO] finished tweaking crates.io crate derivation_tree 0.1.0 [INFO] tweaked toml for crates.io crate derivation_tree 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate derivation_tree 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ef8408596ca1e2a874a37ae8f7e958d78a96f3bc09e63e0c3c16753fedfebfc1 [INFO] running `Command { std: "docker" "start" "-a" "ef8408596ca1e2a874a37ae8f7e958d78a96f3bc09e63e0c3c16753fedfebfc1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ef8408596ca1e2a874a37ae8f7e958d78a96f3bc09e63e0c3c16753fedfebfc1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef8408596ca1e2a874a37ae8f7e958d78a96f3bc09e63e0c3c16753fedfebfc1", kill_on_drop: false }` [INFO] [stdout] ef8408596ca1e2a874a37ae8f7e958d78a96f3bc09e63e0c3c16753fedfebfc1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e058dcb7d2d068be2e95ac66f70f0987dedee24721fefa98cab5062dfc379348 [INFO] running `Command { std: "docker" "start" "-a" "e058dcb7d2d068be2e95ac66f70f0987dedee24721fefa98cab5062dfc379348", kill_on_drop: false }` [INFO] [stderr] Compiling derivation_tree v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/derivation.rs:29:16 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn new(mut term: T, query: F) -> Self { [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: `index` [INFO] [stdout] --> src/heuristic.rs:24:21 [INFO] [stdout] | [INFO] [stdout] 24 | fn apply(&self, index: usize, tree: &DerivationTree) -> Range { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tree` [INFO] [stdout] --> src/heuristic.rs:24:35 [INFO] [stdout] | [INFO] [stdout] 24 | fn apply(&self, index: usize, tree: &DerivationTree) -> Range { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tree` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `term` [INFO] [stdout] --> src/tree.rs:28:24 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn push(&self, term: T, parent: usize) -> usize { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_term` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `parent` [INFO] [stdout] --> src/tree.rs:28:33 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn push(&self, term: T, parent: usize) -> usize { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `heuristic` is never read [INFO] [stdout] --> src/derivation.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct Derivation> [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 18 | heuristic: H, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s [INFO] running `Command { std: "docker" "inspect" "e058dcb7d2d068be2e95ac66f70f0987dedee24721fefa98cab5062dfc379348", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e058dcb7d2d068be2e95ac66f70f0987dedee24721fefa98cab5062dfc379348", kill_on_drop: false }` [INFO] [stdout] e058dcb7d2d068be2e95ac66f70f0987dedee24721fefa98cab5062dfc379348 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2b9453a3caf1e221e7d3f2ec513ec9cfd9c66d540c113c23cc7abf184f0ca93a [INFO] running `Command { std: "docker" "start" "-a" "2b9453a3caf1e221e7d3f2ec513ec9cfd9c66d540c113c23cc7abf184f0ca93a", kill_on_drop: false }` [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/derivation.rs:29:16 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn new(mut term: T, query: F) -> Self { [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] [stderr] Compiling derivation_tree v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/heuristic.rs:24:21 [INFO] [stdout] | [INFO] [stdout] 24 | fn apply(&self, index: usize, tree: &DerivationTree) -> Range { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tree` [INFO] [stdout] --> src/heuristic.rs:24:35 [INFO] [stdout] | [INFO] [stdout] 24 | fn apply(&self, index: usize, tree: &DerivationTree) -> Range { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tree` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `term` [INFO] [stdout] --> src/tree.rs:28:24 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn push(&self, term: T, parent: usize) -> usize { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_term` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `parent` [INFO] [stdout] --> src/tree.rs:28:33 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn push(&self, term: T, parent: usize) -> usize { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `heuristic` is never read [INFO] [stdout] --> src/derivation.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct Derivation> [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 18 | heuristic: H, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/derivation.rs:29:16 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn new(mut term: T, query: F) -> Self { [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: `index` [INFO] [stdout] --> src/heuristic.rs:24:21 [INFO] [stdout] | [INFO] [stdout] 24 | fn apply(&self, index: usize, tree: &DerivationTree) -> Range { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tree` [INFO] [stdout] --> src/heuristic.rs:24:35 [INFO] [stdout] | [INFO] [stdout] 24 | fn apply(&self, index: usize, tree: &DerivationTree) -> Range { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tree` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `term` [INFO] [stdout] --> src/tree.rs:28:24 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn push(&self, term: T, parent: usize) -> usize { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_term` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `parent` [INFO] [stdout] --> src/tree.rs:28:33 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn push(&self, term: T, parent: usize) -> usize { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `heuristic` is never read [INFO] [stdout] --> src/derivation.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct Derivation> [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 18 | heuristic: H, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.28s [INFO] running `Command { std: "docker" "inspect" "2b9453a3caf1e221e7d3f2ec513ec9cfd9c66d540c113c23cc7abf184f0ca93a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2b9453a3caf1e221e7d3f2ec513ec9cfd9c66d540c113c23cc7abf184f0ca93a", kill_on_drop: false }` [INFO] [stdout] 2b9453a3caf1e221e7d3f2ec513ec9cfd9c66d540c113c23cc7abf184f0ca93a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 152c8363a525f868ea05ecf661a30409c642687b82fdaca2dc768c80510ddeef [INFO] running `Command { std: "docker" "start" "-a" "152c8363a525f868ea05ecf661a30409c642687b82fdaca2dc768c80510ddeef", kill_on_drop: false }` [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/derivation.rs:29:16 [INFO] [stderr] | [INFO] [stderr] 29 | pub fn new(mut term: T, query: F) -> Self { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `index` [INFO] [stderr] --> src/heuristic.rs:24:21 [INFO] [stderr] | [INFO] [stderr] 24 | fn apply(&self, index: usize, tree: &DerivationTree) -> Range { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `tree` [INFO] [stderr] --> src/heuristic.rs:24:35 [INFO] [stderr] | [INFO] [stderr] 24 | fn apply(&self, index: usize, tree: &DerivationTree) -> Range { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tree` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `term` [INFO] [stderr] --> src/tree.rs:28:24 [INFO] [stderr] | [INFO] [stderr] 28 | pub fn push(&self, term: T, parent: usize) -> usize { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_term` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `parent` [INFO] [stderr] --> src/tree.rs:28:33 [INFO] [stderr] | [INFO] [stderr] 28 | pub fn push(&self, term: T, parent: usize) -> usize { [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent` [INFO] [stderr] [INFO] [stderr] warning: field `heuristic` is never read [INFO] [stderr] --> src/derivation.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 6 | pub struct Derivation> [INFO] [stderr] | ---------- field in this struct [INFO] [stderr] ... [INFO] [stderr] 18 | heuristic: H, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `derivation_tree` (lib) generated 6 warnings (run `cargo fix --lib -p derivation_tree` to apply 5 suggestions) [INFO] [stderr] warning: `derivation_tree` (lib test) generated 6 warnings (6 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/derivation_tree-cd938ab9d243a514) [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] [stderr] Doc-tests derivation_tree [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" "152c8363a525f868ea05ecf661a30409c642687b82fdaca2dc768c80510ddeef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "152c8363a525f868ea05ecf661a30409c642687b82fdaca2dc768c80510ddeef", kill_on_drop: false }` [INFO] [stdout] 152c8363a525f868ea05ecf661a30409c642687b82fdaca2dc768c80510ddeef