[INFO] updating cached repository https://github.com/sLg00/rustTest
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a4a76c3a1a44592bf65fffcd79271137dedc572b
[INFO] checking sLg00/rustTest against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FsLg00%2FrustTest" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sLg00/rustTest on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sLg00/rustTest
[INFO] finished tweaking git repo https://github.com/sLg00/rustTest
[INFO] tweaked toml for git repo https://github.com/sLg00/rustTest written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/sLg00/rustTest already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] 84c5deba40bcca6d74609069da2c7c5c42d83be604af2b41d089d5782de11552
[INFO] running `"docker" "start" "-a" "84c5deba40bcca6d74609069da2c7c5c42d83be604af2b41d089d5782de11552"`
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking ferris-says v0.1.1
[INFO] [stderr]     Checking rust_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/ctrlflw.rs:66:10
[INFO] [stderr]    |
[INFO] [stderr] 66 |         1...999  => "Unknown", // .. vs ... - second includes last value in range
[INFO] [stderr]    |          ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `red` should have an upper camel case name
[INFO] [stderr]   --> src/structures.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         red,
[INFO] [stderr]    |         ^^^ help: convert the identifier to upper camel case: `Red`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `green` should have an upper camel case name
[INFO] [stderr]   --> src/structures.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |         green,
[INFO] [stderr]    |         ^^^^^ help: convert the identifier to upper camel case: `Green`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `blue` should have an upper camel case name
[INFO] [stderr]   --> src/structures.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |         blue,
[INFO] [stderr]    |         ^^^^ help: convert the identifier to upper camel case: `Blue`
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/ctrlflw.rs:66:10
[INFO] [stderr]    |
[INFO] [stderr] 66 |         1...999  => "Unknown", // .. vs ... - second includes last value in range
[INFO] [stderr]    |          ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `red` should have an upper camel case name
[INFO] [stderr]   --> src/structures.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         red,
[INFO] [stderr]    |         ^^^ help: convert the identifier to upper camel case: `Red`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `green` should have an upper camel case name
[INFO] [stderr]   --> src/structures.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |         green,
[INFO] [stderr]    |         ^^^^^ help: convert the identifier to upper camel case: `Green`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `blue` should have an upper camel case name
[INFO] [stderr]   --> src/structures.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |         blue,
[INFO] [stderr]    |         ^^^^ help: convert the identifier to upper camel case: `Blue`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/main.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let f = 4> 0; //true
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p3`
[INFO] [stderr]   --> src/sh.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let p3 = *p2;
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_p3`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/main.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let f = 4> 0; //true
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p3`
[INFO] [stderr]   --> src/sh.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let p3 = *p2;
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_p3`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/structures.rs:230:9
[INFO] [stderr]     |
[INFO] [stderr] 230 |     let mut abc: String = String::from("hello");
[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/structures.rs:234:9
[INFO] [stderr]     |
[INFO] [stderr] 234 |     let mut a = abc.replace("ello", "bye");
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/structures.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     unsafe {iof.i = 42;}
[INFO] [stderr]    |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MEANING_OF_LIFE`
[INFO] [stderr]  --> src/main.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | const MEANING_OF_LIFE:u8 = 42;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `basics`
[INFO] [stderr]   --> src/main.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn basics(){
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/structures.rs:230:9
[INFO] [stderr]     |
[INFO] [stderr] 230 |     let mut abc: String = String::from("hello");
[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/structures.rs:234:9
[INFO] [stderr]     |
[INFO] [stderr] 234 |     let mut a = abc.replace("ello", "bye");
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/structures.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     unsafe {iof.i = 42;}
[INFO] [stderr]    |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MEANING_OF_LIFE`
[INFO] [stderr]  --> src/main.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | const MEANING_OF_LIFE:u8 = 42;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `basics`
[INFO] [stderr]   --> src/main.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn basics(){
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.20s
[INFO] running `"docker" "inspect" "84c5deba40bcca6d74609069da2c7c5c42d83be604af2b41d089d5782de11552"`
[INFO] running `"docker" "rm" "-f" "84c5deba40bcca6d74609069da2c7c5c42d83be604af2b41d089d5782de11552"`
[INFO] [stdout] 84c5deba40bcca6d74609069da2c7c5c42d83be604af2b41d089d5782de11552