[INFO] cloning repository https://github.com/ArtifactCabinet/rust-workbench
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ArtifactCabinet/rust-workbench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArtifactCabinet%2Frust-workbench", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArtifactCabinet%2Frust-workbench'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d2242b12abd6c352ef6422af37997d599afc007
[INFO] checking ArtifactCabinet/rust-workbench against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArtifactCabinet%2Frust-workbench" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ArtifactCabinet/rust-workbench on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ArtifactCabinet/rust-workbench
[INFO] finished tweaking git repo https://github.com/ArtifactCabinet/rust-workbench
[INFO] tweaked toml for git repo https://github.com/ArtifactCabinet/rust-workbench written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/ArtifactCabinet/rust-workbench already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97755d63f0026292daeea0936b8616a3cb6d61cbee081a23445e8c2383baac30
[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" "97755d63f0026292daeea0936b8616a3cb6d61cbee081a23445e8c2383baac30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97755d63f0026292daeea0936b8616a3cb6d61cbee081a23445e8c2383baac30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97755d63f0026292daeea0936b8616a3cb6d61cbee081a23445e8c2383baac30", kill_on_drop: false }`
[INFO] [stdout] 97755d63f0026292daeea0936b8616a3cb6d61cbee081a23445e8c2383baac30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08982e56c4209b7513d58a41c10778c44e98f04429fc9d239c1ad84bd7e5b8c9
[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" "08982e56c4209b7513d58a41c10778c44e98f04429fc9d239c1ad84bd7e5b8c9", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-workbench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `names`
[INFO] [stdout]   --> src/p02_practice.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let names = vec![1,2,3,4,5];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_names`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add`
[INFO] [stdout]  --> src/p02_practice.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn add (a:i64,b:i64) -> i64 {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `filter`
[INFO] [stdout]   --> src/p02_practice.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn filter(){
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `names`
[INFO] [stdout]   --> src/p02_practice.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let names = vec![1,2,3,4,5];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_names`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `filter`
[INFO] [stdout]   --> src/p02_practice.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn filter(){
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "08982e56c4209b7513d58a41c10778c44e98f04429fc9d239c1ad84bd7e5b8c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08982e56c4209b7513d58a41c10778c44e98f04429fc9d239c1ad84bd7e5b8c9", kill_on_drop: false }`
[INFO] [stdout] 08982e56c4209b7513d58a41c10778c44e98f04429fc9d239c1ad84bd7e5b8c9