[INFO] updating cached repository https://github.com/morimolymoly/rust-playground
[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] 9f4d10f8974323015393f1e4ad76714c57535446
[INFO] testing morimolymoly/rust-playground against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmorimolymoly%2Frust-playground" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/morimolymoly/rust-playground on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/morimolymoly/rust-playground
[INFO] finished tweaking git repo https://github.com/morimolymoly/rust-playground
[INFO] tweaked toml for git repo https://github.com/morimolymoly/rust-playground written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/morimolymoly/rust-playground already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 57ec2bb83c9aaf1d354d806933fbcfe3a40b4255921eb59cb5d15387aa834c95
[INFO] running `"docker" "start" "-a" "57ec2bb83c9aaf1d354d806933fbcfe3a40b4255921eb59cb5d15387aa834c95"`
[INFO] [stderr]    Compiling ownership v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `sr`
[INFO] [stderr]   --> src/main.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |         let sr = &s[0..2];
[INFO] [stderr]    |             ^^ help: if this is intentional, prefix it with an underscore: `_sr`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let mut s100 = String::from("test");
[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: function `returnNekoOrCat` should have a snake case name
[INFO] [stderr]   --> src/neko.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn returnNekoOrCat(neko: bool) -> Box<dyn Animal> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `return_neko_or_cat`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait method `Die` should have a snake case name
[INFO] [stderr]   --> src/neko.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn Die(&self) {
[INFO] [stderr]    |        ^^^ help: convert the identifier to snake case: `die`
[INFO] [stderr] 
[INFO] [stderr] warning: method `Naku` should have a snake case name
[INFO] [stderr]   --> src/neko.rs:27:12
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn Naku(&self) {
[INFO] [stderr]    |            ^^^^ help: convert the identifier to snake case: `naku`
[INFO] [stderr] 
[INFO] [stderr] warning: method `GetOld` should have a snake case name
[INFO] [stderr]   --> src/neko.rs:31:12
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn GetOld(&mut self) {
[INFO] [stderr]    |            ^^^^^^ help: convert the identifier to snake case: `get_old`
[INFO] [stderr] 
[INFO] [stderr] warning: function `UnwrapOption` should have a snake case name
[INFO] [stderr]  --> src/option.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn UnwrapOption(op: Option<u64>) -> u64 {
[INFO] [stderr]   |        ^^^^^^^^^^^^ help: convert the identifier to snake case: `unwrap_option`
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "57ec2bb83c9aaf1d354d806933fbcfe3a40b4255921eb59cb5d15387aa834c95"`
[INFO] running `"docker" "rm" "-f" "57ec2bb83c9aaf1d354d806933fbcfe3a40b4255921eb59cb5d15387aa834c95"`
[INFO] [stdout] 57ec2bb83c9aaf1d354d806933fbcfe3a40b4255921eb59cb5d15387aa834c95
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 924f57650f850b4a1b479c111be6fcdb5422f4018c3f99daa55e04ccaf9b11c9
[INFO] running `"docker" "start" "-a" "924f57650f850b4a1b479c111be6fcdb5422f4018c3f99daa55e04ccaf9b11c9"`
[INFO] [stderr]    Compiling ownership v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `sr`
[INFO] [stderr]   --> src/main.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |         let sr = &s[0..2];
[INFO] [stderr]    |             ^^ help: if this is intentional, prefix it with an underscore: `_sr`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let mut s100 = String::from("test");
[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: function `returnNekoOrCat` should have a snake case name
[INFO] [stderr]   --> src/neko.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn returnNekoOrCat(neko: bool) -> Box<dyn Animal> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `return_neko_or_cat`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait method `Die` should have a snake case name
[INFO] [stderr]   --> src/neko.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn Die(&self) {
[INFO] [stderr]    |        ^^^ help: convert the identifier to snake case: `die`
[INFO] [stderr] 
[INFO] [stderr] warning: method `Naku` should have a snake case name
[INFO] [stderr]   --> src/neko.rs:27:12
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn Naku(&self) {
[INFO] [stderr]    |            ^^^^ help: convert the identifier to snake case: `naku`
[INFO] [stderr] 
[INFO] [stderr] warning: method `GetOld` should have a snake case name
[INFO] [stderr]   --> src/neko.rs:31:12
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn GetOld(&mut self) {
[INFO] [stderr]    |            ^^^^^^ help: convert the identifier to snake case: `get_old`
[INFO] [stderr] 
[INFO] [stderr] warning: function `UnwrapOption` should have a snake case name
[INFO] [stderr]  --> src/option.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn UnwrapOption(op: Option<u64>) -> u64 {
[INFO] [stderr]   |        ^^^^^^^^^^^^ help: convert the identifier to snake case: `unwrap_option`
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "924f57650f850b4a1b479c111be6fcdb5422f4018c3f99daa55e04ccaf9b11c9"`
[INFO] running `"docker" "rm" "-f" "924f57650f850b4a1b479c111be6fcdb5422f4018c3f99daa55e04ccaf9b11c9"`
[INFO] [stdout] 924f57650f850b4a1b479c111be6fcdb5422f4018c3f99daa55e04ccaf9b11c9
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b65a00fba3566071d88908c0586783a683056b0d13339fc0d154fa060c511600
[INFO] running `"docker" "start" "-a" "b65a00fba3566071d88908c0586783a683056b0d13339fc0d154fa060c511600"`
[INFO] [stderr] warning: unused variable: `sr`
[INFO] [stderr]   --> src/main.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |         let sr = &s[0..2];
[INFO] [stderr]    |             ^^ help: if this is intentional, prefix it with an underscore: `_sr`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let mut s100 = String::from("test");
[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: function `returnNekoOrCat` should have a snake case name
[INFO] [stderr]   --> src/neko.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn returnNekoOrCat(neko: bool) -> Box<dyn Animal> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `return_neko_or_cat`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait method `Die` should have a snake case name
[INFO] [stderr]   --> src/neko.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn Die(&self) {
[INFO] [stderr]    |        ^^^ help: convert the identifier to snake case: `die`
[INFO] [stderr] 
[INFO] [stderr] warning: method `Naku` should have a snake case name
[INFO] [stderr]   --> src/neko.rs:27:12
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn Naku(&self) {
[INFO] [stderr]    |            ^^^^ help: convert the identifier to snake case: `naku`
[INFO] [stderr] 
[INFO] [stderr] warning: method `GetOld` should have a snake case name
[INFO] [stderr]   --> src/neko.rs:31:12
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn GetOld(&mut self) {
[INFO] [stderr]    |            ^^^^^^ help: convert the identifier to snake case: `get_old`
[INFO] [stderr] 
[INFO] [stderr] warning: function `UnwrapOption` should have a snake case name
[INFO] [stderr]  --> src/option.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn UnwrapOption(op: Option<u64>) -> u64 {
[INFO] [stderr]   |        ^^^^^^^^^^^^ help: convert the identifier to snake case: `unwrap_option`
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ownership-2f9722f00bacb021
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b65a00fba3566071d88908c0586783a683056b0d13339fc0d154fa060c511600"`
[INFO] running `"docker" "rm" "-f" "b65a00fba3566071d88908c0586783a683056b0d13339fc0d154fa060c511600"`
[INFO] [stdout] b65a00fba3566071d88908c0586783a683056b0d13339fc0d154fa060c511600