[INFO] cloning repository https://github.com/reem/rust-n-queens [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/reem/rust-n-queens" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freem%2Frust-n-queens", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freem%2Frust-n-queens'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9a6e9c463cc3e0d8bd7abc3dc818499cfc097ffa [INFO] checking reem/rust-n-queens against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freem%2Frust-n-queens" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/reem/rust-n-queens on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/reem/rust-n-queens [INFO] finished tweaking git repo https://github.com/reem/rust-n-queens [INFO] tweaked toml for git repo https://github.com/reem/rust-n-queens written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/reem/rust-n-queens already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 02ed680270c04809d78f343f9ca60034d7bba09723f98819734a38e0687360e1 [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" "02ed680270c04809d78f343f9ca60034d7bba09723f98819734a38e0687360e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "02ed680270c04809d78f343f9ca60034d7bba09723f98819734a38e0687360e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "02ed680270c04809d78f343f9ca60034d7bba09723f98819734a38e0687360e1", kill_on_drop: false }` [INFO] [stdout] 02ed680270c04809d78f343f9ca60034d7bba09723f98819734a38e0687360e1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d6cfbdbc0c2d4082ba163282fa9ba4d133a3e7d48726781bcbb0b36d17e5c70c [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" "d6cfbdbc0c2d4082ba163282fa9ba4d133a3e7d48726781bcbb0b36d17e5c70c", kill_on_drop: false }` [INFO] [stderr] Checking nqueens v1.0.0 (/opt/rustwide/workdir) [INFO] [stdout] error: expected one of `)`, `,`, `.`, `?`, or an operator, found `{` [INFO] [stdout] --> src/main.rs:120:22 [INFO] [stdout] | [INFO] [stdout] 120 | spawn(proc() { [INFO] [stdout] | -^ expected one of `)`, `,`, `.`, `?`, or an operator [INFO] [stdout] | | [INFO] [stdout] | help: missing `,` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: invalid suffix `u` for number literal [INFO] [stdout] --> src/main.rs:129:23 [INFO] [stdout] | [INFO] [stdout] 129 | let mut results = 0u; [INFO] [stdout] | ^^ invalid suffix `u` [INFO] [stdout] | [INFO] [stdout] = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: invalid suffix `u` for number literal [INFO] [stdout] --> src/main.rs:141:25 [INFO] [stdout] | [INFO] [stdout] 141 | for num in range(0, 9u) { [INFO] [stdout] | ^^ invalid suffix `u` [INFO] [stdout] | [INFO] [stdout] = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: invalid suffix `u` for number literal [INFO] [stdout] --> src/main.rs:149:25 [INFO] [stdout] | [INFO] [stdout] 149 | for num in range(0, 9u) { [INFO] [stdout] | ^^ invalid suffix `u` [INFO] [stdout] | [INFO] [stdout] = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: expected one of `)`, `,`, `.`, `?`, or an operator, found `{` [INFO] [stdout] --> src/main.rs:120:22 [INFO] [stdout] | [INFO] [stdout] 120 | spawn(proc() { [INFO] [stdout] | -^ expected one of `)`, `,`, `.`, `?`, or an operator [INFO] [stdout] | | [INFO] [stdout] | help: missing `,` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: invalid suffix `u` for number literal [INFO] [stdout] --> src/main.rs:129:23 [INFO] [stdout] | [INFO] [stdout] 129 | let mut results = 0u; [INFO] [stdout] | ^^ invalid suffix `u` [INFO] [stdout] | [INFO] [stdout] = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: invalid suffix `u` for number literal [INFO] [stdout] --> src/main.rs:141:25 [INFO] [stdout] | [INFO] [stdout] 141 | for num in range(0, 9u) { [INFO] [stdout] | ^^ invalid suffix `u` [INFO] [stdout] | [INFO] [stdout] = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: invalid suffix `u` for number literal [INFO] [stdout] --> src/main.rs:149:25 [INFO] [stdout] | [INFO] [stdout] 149 | for num in range(0, 9u) { [INFO] [stdout] | ^^ invalid suffix `u` [INFO] [stdout] | [INFO] [stdout] = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: invalid suffix `u` for number literal [INFO] [stdout] --> src/main.rs:140:47 [INFO] [stdout] | [INFO] [stdout] 140 | let real = vec!(1, 1, 0, 0, 2, 10, 4, 40, 92u); [INFO] [stdout] | ^^^ invalid suffix `u` [INFO] [stdout] | [INFO] [stdout] = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: invalid suffix `u` for number literal [INFO] [stdout] --> src/main.rs:148:47 [INFO] [stdout] | [INFO] [stdout] 148 | let real = vec!(1, 1, 0, 0, 2, 10, 4, 40, 92u); [INFO] [stdout] | ^^^ invalid suffix `u` [INFO] [stdout] | [INFO] [stdout] = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `uint` in this scope [INFO] [stdout] --> src/main.rs:21:24 [INFO] [stdout] | [INFO] [stdout] 21 | fn n_queens(n: i32) -> uint { [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `uint` in this scope [INFO] [stdout] --> src/main.rs:23:39 [INFO] [stdout] | [INFO] [stdout] 23 | return n_queens_helper((1 << n as uint) -1, 0, 0, 0); [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `uint` in this scope [INFO] [stdout] --> src/main.rs:45:87 [INFO] [stdout] | [INFO] [stdout] 45 | fn n_queens_helper(all_ones: i32, left_diags: i32, columns: i32, right_diags: i32) -> uint { [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `uint` in this scope [INFO] [stdout] --> src/main.rs:100:50 [INFO] [stdout] | [INFO] [stdout] 100 | return solutions + ((columns == all_ones) as uint) [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `uint` in this scope [INFO] [stdout] --> src/main.rs:108:33 [INFO] [stdout] | [INFO] [stdout] 108 | fn parallel_n_queens(n: i32) -> uint { [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `uint` in this scope [INFO] [stdout] --> src/main.rs:109:31 [INFO] [stdout] | [INFO] [stdout] 109 | let all_ones = (1 << n as uint) - 1; [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find function `channel` in this scope [INFO] [stdout] --> src/main.rs:115:20 [INFO] [stdout] | [INFO] [stdout] 115 | let (tx, rx) = channel(); [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this function [INFO] [stdout] | [INFO] [stdout] 4 | use std::sync::mpsc::channel; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find function `spawn` in this scope [INFO] [stdout] --> src/main.rs:120:9 [INFO] [stdout] | [INFO] [stdout] 120 | spawn(proc() { [INFO] [stdout] | ^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this function [INFO] [stdout] | [INFO] [stdout] 4 | use std::thread::spawn; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find function `proc` in this scope [INFO] [stdout] --> src/main.rs:120:15 [INFO] [stdout] | [INFO] [stdout] 120 | spawn(proc() { [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `uint` in this scope [INFO] [stdout] --> src/main.rs:130:38 [INFO] [stdout] | [INFO] [stdout] 130 | for value in rx.iter().take(n as uint) { [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `uint` in this scope [INFO] [stdout] --> src/main.rs:133:48 [INFO] [stdout] | [INFO] [stdout] 133 | return results + ((columns == all_ones) as uint) [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable [INFO] [stdout] --> src/main.rs:154:3 [INFO] [stdout] | [INFO] [stdout] 154 | #[bench] [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[deny(soft_unstable)]` 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 #64266 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable [INFO] [stdout] --> src/main.rs:159:3 [INFO] [stdout] | [INFO] [stdout] 159 | #[bench] [INFO] [stdout] | ^^^^^ [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 #64266 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> src/main.rs:90:13 [INFO] [stdout] | [INFO] [stdout] 90 | (columns | spot), [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> src/main.rs:124:17 [INFO] [stdout] | [INFO] [stdout] 124 | (columns | spot), [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `uint` in this scope [INFO] [stdout] --> src/main.rs:21:24 [INFO] [stdout] | [INFO] [stdout] 21 | fn n_queens(n: i32) -> uint { [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `uint` in this scope [INFO] [stdout] --> src/main.rs:23:39 [INFO] [stdout] | [INFO] [stdout] 23 | return n_queens_helper((1 << n as uint) -1, 0, 0, 0); [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `uint` in this scope [INFO] [stdout] --> src/main.rs:45:87 [INFO] [stdout] | [INFO] [stdout] 45 | fn n_queens_helper(all_ones: i32, left_diags: i32, columns: i32, right_diags: i32) -> uint { [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `uint` in this scope [INFO] [stdout] --> src/main.rs:100:50 [INFO] [stdout] | [INFO] [stdout] 100 | return solutions + ((columns == all_ones) as uint) [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `uint` in this scope [INFO] [stdout] --> src/main.rs:108:33 [INFO] [stdout] | [INFO] [stdout] 108 | fn parallel_n_queens(n: i32) -> uint { [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `uint` in this scope [INFO] [stdout] --> src/main.rs:109:31 [INFO] [stdout] | [INFO] [stdout] 109 | let all_ones = (1 << n as uint) - 1; [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find function `channel` in this scope [INFO] [stdout] --> src/main.rs:115:20 [INFO] [stdout] | [INFO] [stdout] 115 | let (tx, rx) = channel(); [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this function [INFO] [stdout] | [INFO] [stdout] 2 | #[cfg(test)] use std::sync::mpsc::channel; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find function `spawn` in this scope [INFO] [stdout] --> src/main.rs:120:9 [INFO] [stdout] | [INFO] [stdout] 120 | spawn(proc() { [INFO] [stdout] | ^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this function [INFO] [stdout] | [INFO] [stdout] 2 | #[cfg(test)] use std::thread::spawn; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find function `proc` in this scope [INFO] [stdout] --> src/main.rs:120:15 [INFO] [stdout] | [INFO] [stdout] 120 | spawn(proc() { [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `uint` in this scope [INFO] [stdout] --> src/main.rs:130:38 [INFO] [stdout] | [INFO] [stdout] 130 | for value in rx.iter().take(n as uint) { [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `uint` in this scope [INFO] [stdout] --> src/main.rs:133:48 [INFO] [stdout] | [INFO] [stdout] 133 | return results + ((columns == all_ones) as uint) [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find function `range` in this scope [INFO] [stdout] --> src/main.rs:141:16 [INFO] [stdout] | [INFO] [stdout] 141 | for num in range(0, 9u) { [INFO] [stdout] | ^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find function `range` in this scope [INFO] [stdout] --> src/main.rs:149:16 [INFO] [stdout] | [INFO] [stdout] 149 | for num in range(0, 9u) { [INFO] [stdout] | ^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable [INFO] [stdout] --> src/main.rs:154:3 [INFO] [stdout] | [INFO] [stdout] 154 | #[bench] [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[deny(soft_unstable)]` 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 #64266 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable [INFO] [stdout] --> src/main.rs:159:3 [INFO] [stdout] | [INFO] [stdout] 159 | #[bench] [INFO] [stdout] | ^^^^^ [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 #64266 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> src/main.rs:90:13 [INFO] [stdout] | [INFO] [stdout] 90 | (columns | spot), [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> src/main.rs:124:17 [INFO] [stdout] | [INFO] [stdout] 124 | (columns | spot), [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'test' [INFO] [stdout] --> src/main.rs:1:14 [INFO] [stdout] | [INFO] [stdout] 1 | #[cfg(test)] extern crate test; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #50297 for more information [INFO] [stdout] = help: add `#![feature(test)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'test' [INFO] [stdout] --> src/main.rs:2:18 [INFO] [stdout] | [INFO] [stdout] 2 | #[cfg(test)] use test::Bencher; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #50297 for more information [INFO] [stdout] = help: add `#![feature(test)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'test' [INFO] [stdout] --> src/main.rs:155:27 [INFO] [stdout] | [INFO] [stdout] 155 | fn bench_n_queens(b: &mut Bencher) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #50297 for more information [INFO] [stdout] = help: add `#![feature(test)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'test' [INFO] [stdout] --> src/main.rs:156:17 [INFO] [stdout] | [INFO] [stdout] 156 | b.iter(|| { test::black_box(n_queens(12)); }); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #50297 for more information [INFO] [stdout] = help: add `#![feature(test)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'test' [INFO] [stdout] --> src/main.rs:160:36 [INFO] [stdout] | [INFO] [stdout] 160 | fn bench_parallel_n_queens(b: &mut Bencher) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #50297 for more information [INFO] [stdout] = help: add `#![feature(test)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'test' [INFO] [stdout] --> src/main.rs:161:17 [INFO] [stdout] | [INFO] [stdout] 161 | b.iter(|| { test::black_box(parallel_n_queens(12)); }); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #50297 for more information [INFO] [stdout] = help: add `#![feature(test)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 17 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0412, E0425. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0412`. [INFO] [stdout] [INFO] [stderr] error: could not compile `nqueens` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0658]: use of unstable library feature 'test' [INFO] [stdout] --> src/main.rs:156:7 [INFO] [stdout] | [INFO] [stdout] 156 | b.iter(|| { test::black_box(n_queens(12)); }); [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #50297 for more information [INFO] [stdout] = help: add `#![feature(test)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] [stdout] error[E0658]: use of unstable library feature 'test' [INFO] [stdout] --> src/main.rs:161:7 [INFO] [stdout] | [INFO] [stdout] 161 | b.iter(|| { test::black_box(parallel_n_queens(12)); }); [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #50297 for more information [INFO] [stdout] = help: add `#![feature(test)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 29 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0412, E0425, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0412`. [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "d6cfbdbc0c2d4082ba163282fa9ba4d133a3e7d48726781bcbb0b36d17e5c70c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d6cfbdbc0c2d4082ba163282fa9ba4d133a3e7d48726781bcbb0b36d17e5c70c", kill_on_drop: false }` [INFO] [stdout] d6cfbdbc0c2d4082ba163282fa9ba4d133a3e7d48726781bcbb0b36d17e5c70c