[INFO] cloning repository https://github.com/akiradeveloper/rust-comp-snippets
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/akiradeveloper/rust-comp-snippets" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakiradeveloper%2Frust-comp-snippets", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakiradeveloper%2Frust-comp-snippets'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] afd724f65943172b07919a87d86f617c1b15a0ed
[INFO] testing akiradeveloper/rust-comp-snippets against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakiradeveloper%2Frust-comp-snippets" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/akiradeveloper/rust-comp-snippets on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-22/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/akiradeveloper/rust-comp-snippets
[INFO] finished tweaking git repo https://github.com/akiradeveloper/rust-comp-snippets
[INFO] tweaked toml for git repo https://github.com/akiradeveloper/rust-comp-snippets written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate git repo https://github.com/akiradeveloper/rust-comp-snippets already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cargo-snippet v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9227837a0a9e90a72b7415d46035e3202512f815ad26b6db78a171586061f147
[INFO] running `Command { std: "docker" "start" "-a" "9227837a0a9e90a72b7415d46035e3202512f815ad26b6db78a171586061f147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9227837a0a9e90a72b7415d46035e3202512f815ad26b6db78a171586061f147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9227837a0a9e90a72b7415d46035e3202512f815ad26b6db78a171586061f147", kill_on_drop: false }`
[INFO] [stdout] 9227837a0a9e90a72b7415d46035e3202512f815ad26b6db78a171586061f147
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c179e004d3716b5e339825a4f9a6b46129f39ce596b6b7e775c1cbcc42852139
[INFO] running `Command { std: "docker" "start" "-a" "c179e004d3716b5e339825a4f9a6b46129f39ce596b6b7e775c1cbcc42852139", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling cargo-snippet v0.5.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rust-comp-snippets v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(custom_inner_attributes)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(plugin)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(proc_macro_hygiene)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/graph/lca.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |         if (v0 == v1) {
[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: `std::collections::HashMap`
[INFO] [stdout]  --> src/graph/dijkstra_queue.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `max`, `min`
[INFO] [stdout]  --> src/macros.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::{max,min};
[INFO] [stdout]   |                ^^^ ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]  --> src/macros.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | / macro_rules! chmax {
[INFO] [stdout] 4 | |     ($x:expr, $($v:expr),+) => {
[INFO] [stdout] 5 | |         $(
[INFO] [stdout] 6 | |             $x = std::cmp::max($x,$v);
[INFO] [stdout] 7 | |         )+
[INFO] [stdout] 8 | |     };
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/macros.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / macro_rules! chmin {
[INFO] [stdout] 11 | |     ($x:expr, $($v:expr),+) => {
[INFO] [stdout] 12 | |         $(
[INFO] [stdout] 13 | |             $x = std::cmp::min($x,$v);
[INFO] [stdout] 14 | |         )+
[INFO] [stdout] 15 | |     };
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/macros.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | / macro_rules! max {
[INFO] [stdout] 18 | |     ($x:expr) => ( $x );
[INFO] [stdout] 19 | |     ($x:expr, $($xs:expr),+) => {
[INFO] [stdout] 20 | |         std::cmp::max($x, max!( $($xs),+ ))
[INFO] [stdout] 21 | |     };
[INFO] [stdout] 22 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/macros.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | / macro_rules! min {
[INFO] [stdout] 24 | |     ($x:expr) => ( $x );
[INFO] [stdout] 25 | |     ($x:expr, $($xs:expr),+) => {
[INFO] [stdout] 26 | |         std::cmp::min($x, min!( $($xs),+ ))
[INFO] [stdout] 27 | |     };
[INFO] [stdout] 28 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fft`, `karatsuba`, `ntt`
[INFO] [stdout]  --> src/polynomial/bench.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ntt, fft, karatsuba};
[INFO] [stdout]   |             ^^^  ^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `MAX_RUQ` should have an upper camel case name
[INFO] [stdout]    --> src/seg_lazy.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 | struct MAX_RUQ;
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to upper camel case: `MaxRuq`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `MIN_RUQ` should have an upper camel case name
[INFO] [stdout]    --> src/seg_lazy.rs:136:8
[INFO] [stdout]     |
[INFO] [stdout] 136 | struct MIN_RUQ;
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to upper camel case: `MinRuq`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `MAX_RAQ` should have an upper camel case name
[INFO] [stdout]    --> src/seg_lazy.rs:173:8
[INFO] [stdout]     |
[INFO] [stdout] 173 | struct MAX_RAQ;
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to upper camel case: `MaxRaq`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `MIN_RAQ` should have an upper camel case name
[INFO] [stdout]    --> src/seg_lazy.rs:196:8
[INFO] [stdout]     |
[INFO] [stdout] 196 | struct MIN_RAQ;
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to upper camel case: `MinRaq`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BTreeMap`, `BTreeSet`
[INFO] [stdout]  --> src/skiplist.rs:6:28
[INFO] [stdout]   |
[INFO] [stdout] 6 |     use std::collections::{BTreeMap, BTreeSet};
[INFO] [stdout]   |                            ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `skiplist::*`
[INFO] [stdout]    --> src/skiplist.rs:430:5
[INFO] [stdout]     |
[INFO] [stdout] 430 | use skiplist::*;
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::BTreeSet`
[INFO] [stdout]    --> src/skiplist.rs:431:5
[INFO] [stdout]     |
[INFO] [stdout] 431 | use std::collections::BTreeSet;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::slice::<impl [T]>::connect`: renamed to join
[INFO] [stdout]   --> src/skiplist.rs:61:34
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 println!("{}",ss.connect(","));
[INFO] [stdout]    |                                  ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-comp-snippets` due to 5 previous errors; 16 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "c179e004d3716b5e339825a4f9a6b46129f39ce596b6b7e775c1cbcc42852139", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c179e004d3716b5e339825a4f9a6b46129f39ce596b6b7e775c1cbcc42852139", kill_on_drop: false }`
[INFO] [stdout] c179e004d3716b5e339825a4f9a6b46129f39ce596b6b7e775c1cbcc42852139
