[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 master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fgarbage-collector" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/playXE/garbage-collector on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-6-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating git repository `https://github.com/zesterer/flume` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tinytemplate v1.1.0 [INFO] [stderr] Downloaded rayon-core v1.8.0 [INFO] [stderr] Downloaded criterion-plot v0.4.3 [INFO] [stderr] Downloaded half v1.6.0 [INFO] [stderr] Downloaded oorandom v11.1.2 [INFO] [stderr] Downloaded criterion v0.3.3 [INFO] [stderr] Downloaded syn v1.0.39 [INFO] [stderr] Downloaded chrono v0.4.15 [INFO] [stderr] Downloaded csv v1.1.3 [INFO] [stderr] Downloaded plotters v0.2.15 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8855c34c42d3351d260ade20bb2e177d062158baf72affda5146f922af618ea9 [INFO] running `Command { std: "docker" "start" "-a" "8855c34c42d3351d260ade20bb2e177d062158baf72affda5146f922af618ea9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8855c34c42d3351d260ade20bb2e177d062158baf72affda5146f922af618ea9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8855c34c42d3351d260ade20bb2e177d062158baf72affda5146f922af618ea9", kill_on_drop: false }` [INFO] [stdout] 8855c34c42d3351d260ade20bb2e177d062158baf72affda5146f922af618ea9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 834add3ca1316d63512d1ea6040b88511c302460a4c80b77e5c8d411d52ddb34 [INFO] running `Command { std: "docker" "start" "-a" "834add3ca1316d63512d1ea6040b88511c302460a4c80b77e5c8d411d52ddb34", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.76 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling serde v1.0.115 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling proc-macro2 v1.0.19 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling rayon-core v1.8.0 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Checking either v1.6.0 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Compiling serde_json v1.0.57 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling cc v1.0.59 [INFO] [stderr] Compiling syn v1.0.39 [INFO] [stderr] Compiling serde_derive v1.0.115 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking once_cell v1.4.1 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking half v1.6.0 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.5 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Compiling rayon v1.4.0 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking oorandom v11.1.2 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking colored v1.9.3 [INFO] [stderr] Compiling garbage-collector v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stderr] Checking crossbeam-channel v0.4.3 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking plotters v0.2.15 [INFO] [stderr] Checking chrono v0.4.15 [INFO] [stderr] Checking simple_logger v1.6.0 [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/accounting/card_table.rs:239:14 [INFO] [stdout] | [INFO] [stdout] 239 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [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: unused imports: `MAP_SHARED` and `PROT_EXEC` [INFO] [stdout] --> src/mem_map.rs:22:56 [INFO] [stdout] | [INFO] [stdout] 22 | MAP_ANONYMOUS, MAP_FAILED, MAP_FIXED, MAP_PRIVATE, MAP_SHARED, PROT_EXEC, PROT_NONE, PROT_READ, [INFO] [stdout] | ^^^^^^^^^^ ^^^^^^^^^ [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: 7 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 bstr v0.2.13 [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stderr] Checking csv v1.1.3 [INFO] [stderr] Checking tinytemplate v1.1.0 [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: unnecessary parentheses around block return value [INFO] [stdout] --> benches/gcbench.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 40 | (1 << (i + 1) - 1) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 40 - (1 << (i + 1) - 1) [INFO] [stdout] 40 + 1 << (i + 1) - 1 [INFO] [stdout] | [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: unnecessary trailing semicolon [INFO] [stdout] --> src/accounting/card_table.rs:239:14 [INFO] [stdout] | [INFO] [stdout] 239 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [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: unused imports: `MAP_SHARED` and `PROT_EXEC` [INFO] [stdout] --> src/mem_map.rs:22:56 [INFO] [stdout] | [INFO] [stdout] 22 | MAP_ANONYMOUS, MAP_FAILED, MAP_FIXED, MAP_PRIVATE, MAP_SHARED, PROT_EXEC, PROT_NONE, PROT_READ, [INFO] [stdout] | ^^^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> benches/gcbench.rs:47:29 [INFO] [stdout] | [INFO] [stdout] 47 | pub fn populate(depth: i32, mut this_node: &mut Node) { [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: unused variable: `i` [INFO] [stdout] --> benches/gcbench.rs:86:13 [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: 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] [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: unused variable: `i` [INFO] [stdout] --> benches/gcbench.rs:97:13 [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:100:17 [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: 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:203:31 [INFO] [stdout] | [INFO] [stdout] 203 | pub fn rcpopulate(depth: i32, mut this_node: &mut RCNode) { [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> benches/gcbench.rs:237:13 [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: 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: unused variable: `i` [INFO] [stdout] --> benches/gcbench.rs:248:13 [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:251:17 [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: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: fields `i` and `j` are never read [INFO] [stdout] --> benches/gcbench.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 4 | i: i32, [INFO] [stdout] | ^ [INFO] [stdout] 5 | j: i32, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `DEPTH` is never used [INFO] [stdout] --> benches/gcbench.rs:80:7 [INFO] [stdout] | [INFO] [stdout] 80 | const DEPTH: i32 = 6; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 26 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: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.34s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.3 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "834add3ca1316d63512d1ea6040b88511c302460a4c80b77e5c8d411d52ddb34", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "834add3ca1316d63512d1ea6040b88511c302460a4c80b77e5c8d411d52ddb34", kill_on_drop: false }` [INFO] [stdout] 834add3ca1316d63512d1ea6040b88511c302460a4c80b77e5c8d411d52ddb34 [INFO] checking playXE/garbage-collector against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fgarbage-collector" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/playXE/garbage-collector on toolchain f9935d29d867449445ee008640ccca1bf1ae0889 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-6-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 157cd11fad0d7479e9e07b76aec9fe413767ab9c413055e9e92e176b9713d1e0 [INFO] running `Command { std: "docker" "start" "-a" "157cd11fad0d7479e9e07b76aec9fe413767ab9c413055e9e92e176b9713d1e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "157cd11fad0d7479e9e07b76aec9fe413767ab9c413055e9e92e176b9713d1e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "157cd11fad0d7479e9e07b76aec9fe413767ab9c413055e9e92e176b9713d1e0", kill_on_drop: false }` [INFO] [stdout] 157cd11fad0d7479e9e07b76aec9fe413767ab9c413055e9e92e176b9713d1e0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail_expr_drop_order" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 89c1d647ebf630227c3013d331ce55137a8e1791571e599f99488ac09ed378df [INFO] running `Command { std: "docker" "start" "-a" "89c1d647ebf630227c3013d331ce55137a8e1791571e599f99488ac09ed378df", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.76 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling serde v1.0.115 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling proc-macro2 v1.0.19 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling rayon-core v1.8.0 [INFO] [stderr] Compiling syn v1.0.39 [INFO] [stderr] Compiling cc v1.0.59 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking either v1.6.0 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling serde_json v1.0.57 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling serde_derive v1.0.115 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking half v1.6.0 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.5 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling rayon v1.4.0 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Checking once_cell v1.4.1 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking oorandom v11.1.2 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking colored v1.9.3 [INFO] [stderr] Compiling garbage-collector v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stderr] Checking crossbeam-channel v0.4.3 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking plotters v0.2.15 [INFO] [stderr] Checking chrono v0.4.15 [INFO] [stderr] Checking simple_logger v1.6.0 [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/accounting/card_table.rs:239:14 [INFO] [stdout] | [INFO] [stdout] 239 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [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: unused imports: `MAP_SHARED` and `PROT_EXEC` [INFO] [stdout] --> src/mem_map.rs:22:56 [INFO] [stdout] | [INFO] [stdout] 22 | MAP_ANONYMOUS, MAP_FAILED, MAP_FIXED, MAP_PRIVATE, MAP_SHARED, PROT_EXEC, PROT_NONE, PROT_READ, [INFO] [stdout] | ^^^^^^^^^^ ^^^^^^^^^ [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] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:574:15 [INFO] [stdout] | [INFO] [stdout] 573 | pub fn allocate(value: T) -> Root<'static, T> { [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 574 | HEAP.with(|x| { [INFO] [stdout] | _______________^ [INFO] [stdout] 575 | | let mut heap = x [INFO] [stdout] 576 | | .get_or_init(|| Mutex::new(Heap::new(4 * 1024 * 1024, false, false, 16 * 1024))) [INFO] [stdout] 577 | | .lock(); [INFO] [stdout] 578 | | [INFO] [stdout] 579 | | heap.allocate(value) [INFO] [stdout] 580 | | }) [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:576:40 [INFO] [stdout] | [INFO] [stdout] 576 | .get_or_init(|| Mutex::new(Heap::new(4 * 1024 * 1024, false, false, 16 * 1024))) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:586:40 [INFO] [stdout] | [INFO] [stdout] 586 | .get_or_init(|| Mutex::new(Heap::new(4 * 1024 * 1024, false, false, 16 * 1024))) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:596:40 [INFO] [stdout] | [INFO] [stdout] 596 | .get_or_init(|| Mutex::new(Heap::new(4 * 1024 * 1024, false, false, 16 * 1024))) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/locks.rs:110:20 [INFO] [stdout] | [INFO] [stdout] 108 | pub const fn new(x: T) -> Self { [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 109 | Self { [INFO] [stdout] 110 | x: UnsafeCell::new(x), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/locks.rs:139:22 [INFO] [stdout] | [INFO] [stdout] 137 | pub const fn new(val: T) -> Self { [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 138 | Self { [INFO] [stdout] 139 | val: RefCell::new(val), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/locks.rs:162:22 [INFO] [stdout] | [INFO] [stdout] 160 | pub const fn new(x: T) -> Self { [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 161 | Self { [INFO] [stdout] 162 | val: RefCell::new(x), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 7 previous errors; 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `garbage-collector` (lib) due to 8 previous errors; 7 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "89c1d647ebf630227c3013d331ce55137a8e1791571e599f99488ac09ed378df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "89c1d647ebf630227c3013d331ce55137a8e1791571e599f99488ac09ed378df", kill_on_drop: false }` [INFO] [stdout] 89c1d647ebf630227c3013d331ce55137a8e1791571e599f99488ac09ed378df