[INFO] cloning repository https://github.com/Hizoul/trlsnap
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Hizoul/trlsnap" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHizoul%2Ftrlsnap", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHizoul%2Ftrlsnap'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 884fc79bb7102d61e78a2bfef8c24b47045189a3
[INFO] testing Hizoul/trlsnap against beta-2023-04-20 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHizoul%2Ftrlsnap" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Hizoul/trlsnap on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Hizoul/trlsnap
[INFO] finished tweaking git repo https://github.com/Hizoul/trlsnap
[INFO] tweaked toml for git repo https://github.com/Hizoul/trlsnap written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Hizoul/trlsnap 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" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded seahash v3.0.7
[INFO] [stderr]   Downloaded chrono v0.4.15
[INFO] [stderr]   Downloaded fasthash-sys v0.3.2
[INFO] [stderr]   Downloaded xoroshiro128 v0.3.0
[INFO] [stderr]   Downloaded fasthash v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13372de7a9d1b13e8621f25f1e105645a1b2dd5ebe02234033bd563e23879142
[INFO] running `Command { std: "docker" "start" "-a" "13372de7a9d1b13e8621f25f1e105645a1b2dd5ebe02234033bd563e23879142", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13372de7a9d1b13e8621f25f1e105645a1b2dd5ebe02234033bd563e23879142", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13372de7a9d1b13e8621f25f1e105645a1b2dd5ebe02234033bd563e23879142", kill_on_drop: false }`
[INFO] [stdout] 13372de7a9d1b13e8621f25f1e105645a1b2dd5ebe02234033bd563e23879142
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d71f3801715e1f82d33cf9f865090e5820cd87b64d77878f968e8779cd8c5366
[INFO] running `Command { std: "docker" "start" "-a" "d71f3801715e1f82d33cf9f865090e5820cd87b64d77878f968e8779cd8c5366", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling seahash v3.0.7
[INFO] [stderr]    Compiling fasthash-sys v0.3.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling xoroshiro128 v0.3.0
[INFO] [stderr]    Compiling fasthash v0.4.0
[INFO] [stderr]    Compiling chrono v0.4.15
[INFO] [stderr]    Compiling tlsurvey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `MetroHasher`
[INFO] [stdout]    --> src/visualize.rs:157:23
[INFO] [stdout]     |
[INFO] [stdout] 157 | use fasthash::{metro, MetroHasher};
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `count_to_category` is imported redundantly
[INFO] [stdout]    --> src/visualize.rs:436:7
[INFO] [stdout]     |
[INFO] [stdout] 2   | use crate::mine::*;
[INFO] [stdout]     |     -------------- the item `count_to_category` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 436 |   use crate::mine::count_to_category;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `empty`
[INFO] [stdout]    --> src/mine.rs:130:11
[INFO] [stdout]     |
[INFO] [stdout] 130 |   let mut empty = 0;
[INFO] [stdout]     |           ^^^^^ help: if this is intentional, prefix it with an underscore: `_empty`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `empty`
[INFO] [stdout]    --> src/mine.rs:151:11
[INFO] [stdout]     |
[INFO] [stdout] 151 |   let mut empty = 0;
[INFO] [stdout]     |           ^^^^^ help: if this is intentional, prefix it with an underscore: `_empty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mine.rs:130:7
[INFO] [stdout]     |
[INFO] [stdout] 130 |   let mut empty = 0;
[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/mine.rs:151:7
[INFO] [stdout]     |
[INFO] [stdout] 151 |   let mut empty = 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]    --> src/visualize.rs:367:7
[INFO] [stdout]     |
[INFO] [stdout] 367 |   let mut tag_counts = count_to_category(paper_list, Box::new(move |x| {
[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/visualize.rs:376:7
[INFO] [stdout]     |
[INFO] [stdout] 376 |   let mut t2 = tag_counts.clone();
[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/visualize.rs:481:7
[INFO] [stdout]     |
[INFO] [stdout] 481 |   let mut imp_tuples = count_to_category(paper_list, Box::new(move |x| x.implementation.as_ref().unwrap_or(&vec![]).clone()));
[INFO] [stdout]     |       ----^^^^^^^^^^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.21s
[INFO] running `Command { std: "docker" "inspect" "d71f3801715e1f82d33cf9f865090e5820cd87b64d77878f968e8779cd8c5366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d71f3801715e1f82d33cf9f865090e5820cd87b64d77878f968e8779cd8c5366", kill_on_drop: false }`
[INFO] [stdout] d71f3801715e1f82d33cf9f865090e5820cd87b64d77878f968e8779cd8c5366
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 549468b85228eedda1abebe6fa268c828fc0a3bad5d50afce0cd5cf443910b2f
[INFO] running `Command { std: "docker" "start" "-a" "549468b85228eedda1abebe6fa268c828fc0a3bad5d50afce0cd5cf443910b2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling tlsurvey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `MetroHasher`
[INFO] [stdout]    --> src/visualize.rs:157:23
[INFO] [stdout]     |
[INFO] [stdout] 157 | use fasthash::{metro, MetroHasher};
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `count_to_category` is imported redundantly
[INFO] [stdout]    --> src/visualize.rs:436:7
[INFO] [stdout]     |
[INFO] [stdout] 2   | use crate::mine::*;
[INFO] [stdout]     |     -------------- the item `count_to_category` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 436 |   use crate::mine::count_to_category;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `empty`
[INFO] [stdout]    --> src/mine.rs:130:11
[INFO] [stdout]     |
[INFO] [stdout] 130 |   let mut empty = 0;
[INFO] [stdout]     |           ^^^^^ help: if this is intentional, prefix it with an underscore: `_empty`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `empty`
[INFO] [stdout]    --> src/mine.rs:151:11
[INFO] [stdout]     |
[INFO] [stdout] 151 |   let mut empty = 0;
[INFO] [stdout]     |           ^^^^^ help: if this is intentional, prefix it with an underscore: `_empty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mine.rs:130:7
[INFO] [stdout]     |
[INFO] [stdout] 130 |   let mut empty = 0;
[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/mine.rs:151:7
[INFO] [stdout]     |
[INFO] [stdout] 151 |   let mut empty = 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]    --> src/visualize.rs:367:7
[INFO] [stdout]     |
[INFO] [stdout] 367 |   let mut tag_counts = count_to_category(paper_list, Box::new(move |x| {
[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/visualize.rs:376:7
[INFO] [stdout]     |
[INFO] [stdout] 376 |   let mut t2 = tag_counts.clone();
[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/visualize.rs:481:7
[INFO] [stdout]     |
[INFO] [stdout] 481 |   let mut imp_tuples = count_to_category(paper_list, Box::new(move |x| x.implementation.as_ref().unwrap_or(&vec![]).clone()));
[INFO] [stdout]     |       ----^^^^^^^^^^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "549468b85228eedda1abebe6fa268c828fc0a3bad5d50afce0cd5cf443910b2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "549468b85228eedda1abebe6fa268c828fc0a3bad5d50afce0cd5cf443910b2f", kill_on_drop: false }`
[INFO] [stdout] 549468b85228eedda1abebe6fa268c828fc0a3bad5d50afce0cd5cf443910b2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7a37ca436f307b9d1ae6ffaeacdce072a8869549c1cbc063ec5f64c7d4de6bba
[INFO] running `Command { std: "docker" "start" "-a" "7a37ca436f307b9d1ae6ffaeacdce072a8869549c1cbc063ec5f64c7d4de6bba", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `MetroHasher`
[INFO] [stderr]    --> src/visualize.rs:157:23
[INFO] [stderr]     |
[INFO] [stderr] 157 | use fasthash::{metro, MetroHasher};
[INFO] [stderr]     |                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `count_to_category` is imported redundantly
[INFO] [stderr]    --> src/visualize.rs:436:7
[INFO] [stderr]     |
[INFO] [stderr] 2   | use crate::mine::*;
[INFO] [stderr]     |     -------------- the item `count_to_category` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 436 |   use crate::mine::count_to_category;
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `empty`
[INFO] [stderr]    --> src/mine.rs:130:11
[INFO] [stderr]     |
[INFO] [stderr] 130 |   let mut empty = 0;
[INFO] [stderr]     |           ^^^^^ help: if this is intentional, prefix it with an underscore: `_empty`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `empty`
[INFO] [stderr]    --> src/mine.rs:151:11
[INFO] [stderr]     |
[INFO] [stderr] 151 |   let mut empty = 0;
[INFO] [stderr]     |           ^^^^^ help: if this is intentional, prefix it with an underscore: `_empty`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/mine.rs:130:7
[INFO] [stderr]     |
[INFO] [stderr] 130 |   let mut empty = 0;
[INFO] [stderr]     |       ----^^^^^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/mine.rs:151:7
[INFO] [stderr]     |
[INFO] [stderr] 151 |   let mut empty = 0;
[INFO] [stderr]     |       ----^^^^^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/visualize.rs:367:7
[INFO] [stderr]     |
[INFO] [stderr] 367 |   let mut tag_counts = count_to_category(paper_list, Box::new(move |x| {
[INFO] [stderr]     |       ----^^^^^^^^^^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/visualize.rs:376:7
[INFO] [stderr]     |
[INFO] [stderr] 376 |   let mut t2 = tag_counts.clone();
[INFO] [stderr]     |       ----^^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/visualize.rs:481:7
[INFO] [stderr]     |
[INFO] [stderr] 481 |   let mut imp_tuples = count_to_category(paper_list, Box::new(move |x| x.implementation.as_ref().unwrap_or(&vec![]).clone()));
[INFO] [stderr]     |       ----^^^^^^^^^^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `tlsurvey` (bin "tlsurvey" test) generated 9 warnings (run `cargo fix --bin "tlsurvey" --tests` to apply 8 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/tlsurvey-3d59597b50b1f842)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7a37ca436f307b9d1ae6ffaeacdce072a8869549c1cbc063ec5f64c7d4de6bba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a37ca436f307b9d1ae6ffaeacdce072a8869549c1cbc063ec5f64c7d4de6bba", kill_on_drop: false }`
[INFO] [stdout] 7a37ca436f307b9d1ae6ffaeacdce072a8869549c1cbc063ec5f64c7d4de6bba
