[INFO] cloning repository https://github.com/islami00/cscS01-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/islami00/cscS01-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fislami00%2FcscS01-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fislami00%2FcscS01-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a6fee4f1d33d47eb6965bdaa2dbe6b7df81a5fb5
[INFO] testing islami00/cscS01-rust against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fislami00%2FcscS01-rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/islami00/cscS01-rust on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/islami00/cscS01-rust
[INFO] finished tweaking git repo https://github.com/islami00/cscS01-rust
[INFO] tweaked toml for git repo https://github.com/islami00/cscS01-rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/islami00/cscS01-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8df3eabce555772d8de50d427c68bcd39bc18212ed2d33a7bcdbad2b9db1cd6
[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" "f8df3eabce555772d8de50d427c68bcd39bc18212ed2d33a7bcdbad2b9db1cd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8df3eabce555772d8de50d427c68bcd39bc18212ed2d33a7bcdbad2b9db1cd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8df3eabce555772d8de50d427c68bcd39bc18212ed2d33a7bcdbad2b9db1cd6", kill_on_drop: false }`
[INFO] [stdout] f8df3eabce555772d8de50d427c68bcd39bc18212ed2d33a7bcdbad2b9db1cd6
[INFO] running `Command { std: "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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eca99c5a9c3c43cb4519e97b8ccae57f8e25e799526efdbfdb313d5375f85a8f
[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" "eca99c5a9c3c43cb4519e97b8ccae57f8e25e799526efdbfdb313d5375f85a8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-set v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/class02/problem05/tuples.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/class02/problem06/arrays.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Facebook`
[INFO] [stdout]   --> src/class02/problem07/vecs.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         Facebook(Vec<u8>),
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Instagram`
[INFO] [stdout]   --> src/class02/problem07/vecs.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         Instagram(Vec<u8>),
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Riot`
[INFO] [stdout]   --> src/class02/problem07/vecs.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         Riot(Vec<u8>),
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `None`
[INFO] [stdout]   --> src/class02/problem07/vecs.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         None,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "eca99c5a9c3c43cb4519e97b8ccae57f8e25e799526efdbfdb313d5375f85a8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eca99c5a9c3c43cb4519e97b8ccae57f8e25e799526efdbfdb313d5375f85a8f", kill_on_drop: false }`
[INFO] [stdout] eca99c5a9c3c43cb4519e97b8ccae57f8e25e799526efdbfdb313d5375f85a8f
[INFO] running `Command { std: "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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d43e711d69d14db3d2a728320bb5f01dfe6543a7c53dce76ca6a5205c521d044
[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" "d43e711d69d14db3d2a728320bb5f01dfe6543a7c53dce76ca6a5205c521d044", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-set v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/class02/problem05/tuples.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/class02/problem06/arrays.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Facebook`
[INFO] [stdout]   --> src/class02/problem07/vecs.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         Facebook(Vec<u8>),
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Instagram`
[INFO] [stdout]   --> src/class02/problem07/vecs.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         Instagram(Vec<u8>),
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Riot`
[INFO] [stdout]   --> src/class02/problem07/vecs.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         Riot(Vec<u8>),
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `None`
[INFO] [stdout]   --> src/class02/problem07/vecs.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         None,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "d43e711d69d14db3d2a728320bb5f01dfe6543a7c53dce76ca6a5205c521d044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d43e711d69d14db3d2a728320bb5f01dfe6543a7c53dce76ca6a5205c521d044", kill_on_drop: false }`
[INFO] [stdout] d43e711d69d14db3d2a728320bb5f01dfe6543a7c53dce76ca6a5205c521d044
[INFO] running `Command { std: "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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2102d6d051626dc38f126fed4574d978de53ed8840139371ac019ebc330aaf17
[INFO] running `Command { std: "docker" "start" "-a" "2102d6d051626dc38f126fed4574d978de53ed8840139371ac019ebc330aaf17", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/class02/problem05/tuples.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn run() {
[INFO] [stderr]   |        ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/class02/problem06/arrays.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn run() {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Facebook`
[INFO] [stderr]   --> src/class02/problem07/vecs.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |         Facebook(Vec<u8>),
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Instagram`
[INFO] [stderr]   --> src/class02/problem07/vecs.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |         Instagram(Vec<u8>),
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Riot`
[INFO] [stderr]   --> src/class02/problem07/vecs.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |         Riot(Vec<u8>),
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `None`
[INFO] [stderr]   --> src/class02/problem07/vecs.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |         None,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-set` (bin "rust-set" test) generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_set-e065cac0e8f36478)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2102d6d051626dc38f126fed4574d978de53ed8840139371ac019ebc330aaf17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2102d6d051626dc38f126fed4574d978de53ed8840139371ac019ebc330aaf17", kill_on_drop: false }`
[INFO] [stdout] 2102d6d051626dc38f126fed4574d978de53ed8840139371ac019ebc330aaf17