[INFO] fetching crate kaos 0.1.1-alpha.2...
[INFO] checking kaos-0.1.1-alpha.2 against try#13f916f63bc6575d5ff1f989237dfabe88981368 for pr-69880
[INFO] extracting crate kaos 0.1.1-alpha.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate kaos 0.1.1-alpha.2 on toolchain 13f916f63bc6575d5ff1f989237dfabe88981368
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate kaos 0.1.1-alpha.2
[INFO] finished tweaking crates.io crate kaos 0.1.1-alpha.2
[INFO] tweaked toml for crates.io crate kaos 0.1.1-alpha.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 163b203e72d4c0301c61741aad2a9978607bb5f95707bd319a24b97dcaeeceac
[INFO] running `"docker" "start" "-a" "163b203e72d4c0301c61741aad2a9978607bb5f95707bd319a24b97dcaeeceac"`
[INFO] [stderr]     Checking humantime v2.0.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking proptest v0.9.5
[INFO] [stderr]     Checking fail v0.3.0
[INFO] [stderr]     Checking kaos v0.1.1-alpha.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `OsStr`
[INFO] [stderr]  --> src/run.rs:3:16
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::ffi::{OsStr, OsString};
[INFO] [stderr]   |                ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Fail`, `Warn`
[INFO] [stderr]   --> src/run.rs:14:28
[INFO] [stderr]    |
[INFO] [stderr] 14 | use crate::message::{self, Fail, Warn};
[INFO] [stderr]    |                            ^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `OsStr`
[INFO] [stderr]  --> src/run.rs:3:16
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::ffi::{OsStr, OsString};
[INFO] [stderr]   |                ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Fail`, `Warn`
[INFO] [stderr]   --> src/run.rs:14:28
[INFO] [stderr]    |
[INFO] [stderr] 14 | use crate::message::{self, Fail, Warn};
[INFO] [stderr]    |                            ^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compute`
[INFO] [stderr]   --> src/diff.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |         pub fn compute(_expected: &str, _actual: &str) -> Option<Self> {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ReadStderr`
[INFO] [stderr]   --> src/error.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     ReadStderr(io::Error),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `WriteStderr`
[INFO] [stderr]   --> src/error.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     WriteStderr(io::Error),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Level`
[INFO] [stderr]   --> src/message.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub(crate) enum Level {
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `should_not_have_compiled`
[INFO] [stderr]   --> src/message.rs:90:15
[INFO] [stderr]    |
[INFO] [stderr] 90 | pub(crate) fn should_not_have_compiled() {
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_stderr_wip`
[INFO] [stderr]   --> src/message.rs:99:15
[INFO] [stderr]    |
[INFO] [stderr] 99 | pub(crate) fn write_stderr_wip(wip_path: &Path, stderr_path: &Path, stderr: &str) {
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `overwrite_stderr`
[INFO] [stderr]    --> src/message.rs:117:15
[INFO] [stderr]     |
[INFO] [stderr] 117 | pub(crate) fn overwrite_stderr(stderr_path: &Path, stderr: &str) {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mismatch`
[INFO] [stderr]    --> src/message.rs:130:15
[INFO] [stderr]     |
[INFO] [stderr] 130 | pub(crate) fn mismatch(expected: &str, actual: &str) {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fail_output`
[INFO] [stderr]    --> src/message.rs:195:15
[INFO] [stderr]     |
[INFO] [stderr] 195 | pub(crate) fn fail_output(level: Level, stdout: &[u8]) {
[INFO] [stderr]     |               ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `any`
[INFO] [stderr]   --> src/normalize.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn any<F: FnMut(&str) -> bool>(&self, mut f: F) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compute`
[INFO] [stderr]   --> src/diff.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |         pub fn compute(_expected: &str, _actual: &str) -> Option<Self> {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ReadStderr`
[INFO] [stderr]   --> src/error.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     ReadStderr(io::Error),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `WriteStderr`
[INFO] [stderr]   --> src/error.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     WriteStderr(io::Error),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Level`
[INFO] [stderr]   --> src/message.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub(crate) enum Level {
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `should_not_have_compiled`
[INFO] [stderr]   --> src/message.rs:90:15
[INFO] [stderr]    |
[INFO] [stderr] 90 | pub(crate) fn should_not_have_compiled() {
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_stderr_wip`
[INFO] [stderr]   --> src/message.rs:99:15
[INFO] [stderr]    |
[INFO] [stderr] 99 | pub(crate) fn write_stderr_wip(wip_path: &Path, stderr_path: &Path, stderr: &str) {
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `overwrite_stderr`
[INFO] [stderr]    --> src/message.rs:117:15
[INFO] [stderr]     |
[INFO] [stderr] 117 | pub(crate) fn overwrite_stderr(stderr_path: &Path, stderr: &str) {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mismatch`
[INFO] [stderr]    --> src/message.rs:130:15
[INFO] [stderr]     |
[INFO] [stderr] 130 | pub(crate) fn mismatch(expected: &str, actual: &str) {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fail_output`
[INFO] [stderr]    --> src/message.rs:195:15
[INFO] [stderr]     |
[INFO] [stderr] 195 | pub(crate) fn fail_output(level: Level, stdout: &[u8]) {
[INFO] [stderr]     |               ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `any`
[INFO] [stderr]   --> src/normalize.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn any<F: FnMut(&str) -> bool>(&self, mut f: F) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.02s
[INFO] running `"docker" "inspect" "163b203e72d4c0301c61741aad2a9978607bb5f95707bd319a24b97dcaeeceac"`
[INFO] running `"docker" "rm" "-f" "163b203e72d4c0301c61741aad2a9978607bb5f95707bd319a24b97dcaeeceac"`
[INFO] [stdout] 163b203e72d4c0301c61741aad2a9978607bb5f95707bd319a24b97dcaeeceac