[INFO] cloning repository https://github.com/daviskeene/Plato
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/daviskeene/Plato" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaviskeene%2FPlato", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaviskeene%2FPlato'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bc40b2051d8ce705739cde2c13695a91b4bbce84
[INFO] checking daviskeene/Plato against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaviskeene%2FPlato" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/daviskeene/Plato 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/daviskeene/Plato
[INFO] finished tweaking git repo https://github.com/daviskeene/Plato
[INFO] tweaked toml for git repo https://github.com/daviskeene/Plato written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/daviskeene/Plato 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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] fbc1ff85dfc748fd137c14f6688f9bdfc42b0709b3ded555ab78ff4842d3421d
[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" "fbc1ff85dfc748fd137c14f6688f9bdfc42b0709b3ded555ab78ff4842d3421d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbc1ff85dfc748fd137c14f6688f9bdfc42b0709b3ded555ab78ff4842d3421d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbc1ff85dfc748fd137c14f6688f9bdfc42b0709b3ded555ab78ff4842d3421d", kill_on_drop: false }`
[INFO] [stdout] fbc1ff85dfc748fd137c14f6688f9bdfc42b0709b3ded555ab78ff4842d3421d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 04f904b08d418eb02a9654e294933794fc71360288347da11cab61b772a28701
[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" "04f904b08d418eb02a9654e294933794fc71360288347da11cab61b772a28701", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking groups v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking users v0.9.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking getopts v0.2.19
[INFO] [stderr]     Checking pretty-bytes v0.2.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking plato v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ErrorKind`
[INFO] [stdout]  --> src/lib/list.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{Error, ErrorKind};
[INFO] [stdout]   |                      ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ErrorKind`
[INFO] [stdout]  --> src/lib/list.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{Error, ErrorKind};
[INFO] [stdout]   |                      ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_human`
[INFO] [stdout]   --> src/lib/list.rs:50:53
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn print_items(items: Vec<list_item::ListItem>, is_human: bool, is_long: bool) {
[INFO] [stdout]    |                                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_human`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `is_long` is never read
[INFO] [stdout]   --> src/lib/list.rs:62:7
[INFO] [stdout]    |
[INFO] [stdout] 62 |   let mut is_long = false;
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_hidden`
[INFO] [stdout]   --> src/lib/list.rs:63:7
[INFO] [stdout]    |
[INFO] [stdout] 63 |   let mut is_hidden = false;
[INFO] [stdout]    |       ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_hidden`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `is_human` is never read
[INFO] [stdout]   --> src/lib/list.rs:64:7
[INFO] [stdout]    |
[INFO] [stdout] 64 |   let mut is_human = false;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib/list.rs:63:7
[INFO] [stdout]    |
[INFO] [stdout] 63 |   let mut is_hidden = false;
[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: `is_human`
[INFO] [stdout]   --> src/lib/list.rs:50:53
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn print_items(items: Vec<list_item::ListItem>, is_human: bool, is_long: bool) {
[INFO] [stdout]    |                                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_human`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `is_long` is never read
[INFO] [stdout]   --> src/lib/list.rs:62:7
[INFO] [stdout]    |
[INFO] [stdout] 62 |   let mut is_long = false;
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_hidden`
[INFO] [stdout]   --> src/lib/list.rs:63:7
[INFO] [stdout]    |
[INFO] [stdout] 63 |   let mut is_hidden = false;
[INFO] [stdout]    |       ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_hidden`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `is_human` is never read
[INFO] [stdout]   --> src/lib/list.rs:64:7
[INFO] [stdout]    |
[INFO] [stdout] 64 |   let mut is_human = false;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_permissions`
[INFO] [stdout]   --> src/lib/file.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn parse_permissions(is_dir: bool, mode: u32) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `triplet`
[INFO] [stdout]   --> src/lib/file.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn triplet(mode: u32, read: u32, write: u32, execute: u32) -> String {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_permissions`
[INFO] [stdout]   --> src/lib/file.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn get_permissions(meta: &Metadata) ->  String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib/list.rs:63:7
[INFO] [stdout]    |
[INFO] [stdout] 63 |   let mut is_hidden = false;
[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: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_permissions`
[INFO] [stdout]   --> src/lib/file.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn parse_permissions(is_dir: bool, mode: u32) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `triplet`
[INFO] [stdout]   --> src/lib/file.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn triplet(mode: u32, read: u32, write: u32, execute: u32) -> String {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_permissions`
[INFO] [stdout]   --> src/lib/file.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn get_permissions(meta: &Metadata) ->  String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.70s
[INFO] running `Command { std: "docker" "inspect" "04f904b08d418eb02a9654e294933794fc71360288347da11cab61b772a28701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04f904b08d418eb02a9654e294933794fc71360288347da11cab61b772a28701", kill_on_drop: false }`
[INFO] [stdout] 04f904b08d418eb02a9654e294933794fc71360288347da11cab61b772a28701