[INFO] fetching crate reorder 1.0.3...
[INFO] checking reorder-1.0.3 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate reorder 1.0.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate reorder 1.0.3 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reorder 1.0.3
[INFO] finished tweaking crates.io crate reorder 1.0.3
[INFO] tweaked toml for crates.io crate reorder 1.0.3 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2f98699e4acfa29fd1d56bb0e613edbf17acf89da45c26b78cc36adffeff38d
[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" "a2f98699e4acfa29fd1d56bb0e613edbf17acf89da45c26b78cc36adffeff38d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2f98699e4acfa29fd1d56bb0e613edbf17acf89da45c26b78cc36adffeff38d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2f98699e4acfa29fd1d56bb0e613edbf17acf89da45c26b78cc36adffeff38d", kill_on_drop: false }`
[INFO] [stdout] a2f98699e4acfa29fd1d56bb0e613edbf17acf89da45c26b78cc36adffeff38d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b7e351ca823d21e6e2bef6d8adc8369227e912e962cf3351e859fc9f00b9597
[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" "6b7e351ca823d21e6e2bef6d8adc8369227e912e962cf3351e859fc9f00b9597", 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]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking reorder v1.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stdout] warning: unused variable: `b1`
[INFO] [stdout]   --> src/lib.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut b1=v1.clone();
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_b1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b2`
[INFO] [stdout]   --> src/lib.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut b2=v2.clone();
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_b2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut b1=v1.clone();
[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/lib.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut b2=v2.clone();
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `rand::StdRng`: import with rand::prelude::* or rand::rngs::StdRng instead
[INFO] [stdout]   --> benches/benches.rs:17:18
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut rng: StdRng = SeedableRng::seed_from_u64(2432);
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `rand::StdRng`: import with rand::prelude::* or rand::rngs::StdRng instead
[INFO] [stdout]   --> benches/benches.rs:14:34
[INFO] [stdout]    |
[INFO] [stdout] 14 |     use rand::{Rng, SeedableRng, StdRng};
[INFO] [stdout]    |                                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `rand::Rng::shuffle`: use SliceRandom::shuffle instead
[INFO] [stdout]   --> benches/benches.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     rng.shuffle(&mut vec);
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `rand::Rng::shuffle`: use SliceRandom::shuffle instead
[INFO] [stdout]   --> benches/benches.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     rng.shuffle(&mut vec2);
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `seed`
[INFO] [stdout]   --> benches/benches.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let seed: &[_] = &[1, 2, 3, 4];
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_seed`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.35s
[INFO] running `Command { std: "docker" "inspect" "6b7e351ca823d21e6e2bef6d8adc8369227e912e962cf3351e859fc9f00b9597", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b7e351ca823d21e6e2bef6d8adc8369227e912e962cf3351e859fc9f00b9597", kill_on_drop: false }`
[INFO] [stdout] 6b7e351ca823d21e6e2bef6d8adc8369227e912e962cf3351e859fc9f00b9597