[INFO] cloning repository https://github.com/playXE/garbage-collector [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/playXE/garbage-collector" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fgarbage-collector", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fgarbage-collector'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2972f68c8ed3889bd1b6979aaa37ab395afdb36e [INFO] checking playXE/garbage-collector against beta for pr-78714 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fgarbage-collector" "/workspace/builds/worker-12/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/playXE/garbage-collector on toolchain beta [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/playXE/garbage-collector [INFO] finished tweaking git repo https://github.com/playXE/garbage-collector [INFO] tweaked toml for git repo https://github.com/playXE/garbage-collector written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/playXE/garbage-collector already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5972689c7a75d2a2cf11a13d69750be641f1aa089483b439d4e535eef4e345b5 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "5972689c7a75d2a2cf11a13d69750be641f1aa089483b439d4e535eef4e345b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5972689c7a75d2a2cf11a13d69750be641f1aa089483b439d4e535eef4e345b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5972689c7a75d2a2cf11a13d69750be641f1aa089483b439d4e535eef4e345b5", kill_on_drop: false }` [INFO] [stdout] 5972689c7a75d2a2cf11a13d69750be641f1aa089483b439d4e535eef4e345b5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1779109d033da73e4b5c333555429a9b0c09e83143eb87bfa1df082acc70d5b7 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "1779109d033da73e4b5c333555429a9b0c09e83143eb87bfa1df082acc70d5b7", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling rayon v1.4.0 [INFO] [stderr] Compiling garbage-collector v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stderr] Checking crossbeam-channel v0.4.3 [INFO] [stderr] Checking colored v1.9.3 [INFO] [stderr] Checking plotters v0.2.15 [INFO] [stderr] Checking tinytemplate v1.1.0 [INFO] [stderr] Checking bstr v0.2.13 [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stderr] Checking simple_logger v1.6.0 [INFO] [stderr] Checking rayon-core v1.8.0 [INFO] [stderr] Checking csv v1.1.3 [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/accounting/stack.rs:90:9 [INFO] [stdout] | [INFO] [stdout] 90 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/accounting/stack.rs:122:28 [INFO] [stdout] | [INFO] [stdout] 122 | pub fn push(&self, mut val: Ref>) { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/accounting/stack.rs:123:17 [INFO] [stdout] | [INFO] [stdout] 123 | let mut head = self.head(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/accounting/stack.rs:125:21 [INFO] [stdout] | [INFO] [stdout] 125 | let mut prev = *head; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/accounting/stack.rs:136:17 [INFO] [stdout] | [INFO] [stdout] 136 | let mut head = self.head(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `val2` [INFO] [stdout] --> src/main.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let val2 = Root::new(XX(43)); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_val2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking criterion v0.3.3 [INFO] [stdout] warning: unused variable: `val2` [INFO] [stdout] --> src/main.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let val2 = Root::new(XX(43)); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_val2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/accounting/stack.rs:90:9 [INFO] [stdout] | [INFO] [stdout] 90 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> benches/gcbench.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 40 | (1 << (i + 1) - 1) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `black_box` [INFO] [stdout] --> benches/gcbench.rs:81:17 [INFO] [stdout] | [INFO] [stdout] 81 | use criterion::{black_box, criterion_group, criterion_main, Criterion}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> benches/gcbench.rs:86:9 [INFO] [stdout] | [INFO] [stdout] 86 | let mut i = 0; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> benches/gcbench.rs:88:9 [INFO] [stdout] | [INFO] [stdout] 88 | for i in 0..inum_iters { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> benches/gcbench.rs:97:9 [INFO] [stdout] | [INFO] [stdout] 97 | let mut i = 0; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> benches/gcbench.rs:99:9 [INFO] [stdout] | [INFO] [stdout] 99 | for i in 0..inum_iters { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `temp_tree` [INFO] [stdout] --> benches/gcbench.rs:100:13 [INFO] [stdout] | [INFO] [stdout] 100 | let mut temp_tree = make_tree(depth); [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_temp_tree` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> benches/gcbench.rs:237:9 [INFO] [stdout] | [INFO] [stdout] 237 | let mut i = 0; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> benches/gcbench.rs:239:9 [INFO] [stdout] | [INFO] [stdout] 239 | for i in 0..inum_iters { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> benches/gcbench.rs:248:9 [INFO] [stdout] | [INFO] [stdout] 248 | let mut i = 0; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> benches/gcbench.rs:250:9 [INFO] [stdout] | [INFO] [stdout] 250 | for i in 0..inum_iters { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `temp_tree` [INFO] [stdout] --> benches/gcbench.rs:251:13 [INFO] [stdout] | [INFO] [stdout] 251 | let mut temp_tree = rcmake_tree(depth); [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_temp_tree` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> benches/gcbench.rs:84:9 [INFO] [stdout] | [INFO] [stdout] 84 | let mut inum_iters = num_iters(depth); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> benches/gcbench.rs:86:9 [INFO] [stdout] | [INFO] [stdout] 86 | let mut i = 0; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> benches/gcbench.rs:95:9 [INFO] [stdout] | [INFO] [stdout] 95 | let mut inum_iters = num_iters(depth); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> benches/gcbench.rs:97:9 [INFO] [stdout] | [INFO] [stdout] 97 | let mut i = 0; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> benches/gcbench.rs:100:13 [INFO] [stdout] | [INFO] [stdout] 100 | let mut temp_tree = make_tree(depth); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> benches/gcbench.rs:235:9 [INFO] [stdout] | [INFO] [stdout] 235 | let mut inum_iters = num_iters(depth); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> benches/gcbench.rs:237:9 [INFO] [stdout] | [INFO] [stdout] 237 | let mut i = 0; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> benches/gcbench.rs:246:9 [INFO] [stdout] | [INFO] [stdout] 246 | let mut inum_iters = num_iters(depth); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> benches/gcbench.rs:248:9 [INFO] [stdout] | [INFO] [stdout] 248 | let mut i = 0; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> benches/gcbench.rs:251:13 [INFO] [stdout] | [INFO] [stdout] 251 | let mut temp_tree = rcmake_tree(depth); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `i` [INFO] [stdout] --> benches/gcbench.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | i: i32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `j` [INFO] [stdout] --> benches/gcbench.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | j: i32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `DEPTH` [INFO] [stdout] --> benches/gcbench.rs:80:1 [INFO] [stdout] | [INFO] [stdout] 80 | const DEPTH: i32 = 6; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 25 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/accounting/stack.rs:122:28 [INFO] [stdout] | [INFO] [stdout] 122 | pub fn push(&self, mut val: Ref>) { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/accounting/stack.rs:123:17 [INFO] [stdout] | [INFO] [stdout] 123 | let mut head = self.head(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/accounting/stack.rs:125:21 [INFO] [stdout] | [INFO] [stdout] 125 | let mut prev = *head; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/accounting/stack.rs:136:17 [INFO] [stdout] | [INFO] [stdout] 136 | let mut head = self.head(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 20.22s [INFO] running `Command { std: "docker" "inspect" "1779109d033da73e4b5c333555429a9b0c09e83143eb87bfa1df082acc70d5b7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1779109d033da73e4b5c333555429a9b0c09e83143eb87bfa1df082acc70d5b7", kill_on_drop: false }` [INFO] [stdout] 1779109d033da73e4b5c333555429a9b0c09e83143eb87bfa1df082acc70d5b7