[INFO] cloning repository https://github.com/wanjikuKim-collab/rust_tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wanjikuKim-collab/rust_tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FwanjikuKim-collab%2Frust_tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FwanjikuKim-collab%2Frust_tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6047f1426bbd3887c48e9c319816445baeec788a
[INFO] checking wanjikuKim-collab/rust_tutorial against try#5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db for pr-143717
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FwanjikuKim-collab%2Frust_tutorial" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/wanjikuKim-collab/rust_tutorial
[INFO] finished tweaking git repo https://github.com/wanjikuKim-collab/rust_tutorial
[INFO] tweaked toml for git repo https://github.com/wanjikuKim-collab/rust_tutorial written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wanjikuKim-collab/rust_tutorial on toolchain 5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/wanjikuKim-collab/rust_tutorial already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/9462e958330aa3be6d18035627b53167fe8fdc915c2b60148a080aafa13d7eb9-init: no space left on device
[INFO] checking wanjikuKim-collab/rust_tutorial against try#5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db for pr-143717
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FwanjikuKim-collab%2Frust_tutorial" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/wanjikuKim-collab/rust_tutorial
[INFO] finished tweaking git repo https://github.com/wanjikuKim-collab/rust_tutorial
[INFO] tweaked toml for git repo https://github.com/wanjikuKim-collab/rust_tutorial written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wanjikuKim-collab/rust_tutorial on toolchain 5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/wanjikuKim-collab/rust_tutorial already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aaffb64f3d363b3c1e2bb76e6feb36a00d115b141cc20561f80ba7a3315602e4
[INFO] running `Command { std: "docker" "start" "-a" "aaffb64f3d363b3c1e2bb76e6feb36a00d115b141cc20561f80ba7a3315602e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aaffb64f3d363b3c1e2bb76e6feb36a00d115b141cc20561f80ba7a3315602e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaffb64f3d363b3c1e2bb76e6feb36a00d115b141cc20561f80ba7a3315602e4", kill_on_drop: false }`
[INFO] [stdout] aaffb64f3d363b3c1e2bb76e6feb36a00d115b141cc20561f80ba7a3315602e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fb3c71a67f3a83d2d845a1dda6673a7c32507077c5c31ac61f73f80557984b5
[INFO] running `Command { std: "docker" "start" "-a" "7fb3c71a67f3a83d2d845a1dda6673a7c32507077c5c31ac61f73f80557984b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling cc v1.0.98
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rust_tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Aad`, `NONCE_LEN`, `Nonce`, `SealingKey`, and `UnboundKey`
[INFO] [stdout]  --> src/myvec.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ring::aead::{Aad, BoundKey, Nonce, SealingKey, UnboundKey, AES_256_GCM, NONCE_LEN};
[INFO] [stdout]   |                  ^^^            ^^^^^  ^^^^^^^^^^  ^^^^^^^^^^               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ring::error::Unspecified`
[INFO] [stdout]  --> src/myvec.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ring::error::Unspecified;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Aad`, `NONCE_LEN`, `Nonce`, `SealingKey`, and `UnboundKey`
[INFO] [stdout]  --> src/myvec.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ring::aead::{Aad, BoundKey, Nonce, SealingKey, UnboundKey, AES_256_GCM, NONCE_LEN};
[INFO] [stdout]   |                  ^^^            ^^^^^  ^^^^^^^^^^  ^^^^^^^^^^               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ring::error::Unspecified`
[INFO] [stdout]  --> src/myvec.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ring::error::Unspecified;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BoundKey`
[INFO] [stdout]  --> src/myvec.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ring::aead::{Aad, BoundKey, Nonce, SealingKey, UnboundKey, AES_256_GCM, NONCE_LEN};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BoundKey`
[INFO] [stdout]  --> src/myvec.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ring::aead::{Aad, BoundKey, Nonce, SealingKey, UnboundKey, AES_256_GCM, NONCE_LEN};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `manufacturer`, `model`, and `cc` are never read
[INFO] [stdout]   --> src/myvec.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | struct Car{
[INFO] [stdout]    |        --- fields in this struct
[INFO] [stdout] 49 |     manufacturer: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 50 |     model: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 51 |     cc: u16,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Car` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CounterNonceSequence` is never constructed
[INFO] [stdout]   --> src/myvec.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub struct CounterNonceSequence(u32);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `age`, `gender`, `single`, and `name` are never read
[INFO] [stdout]  --> src/mystructs.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Person{
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 3 |     pub age: u8,
[INFO] [stdout]   |         ^^^
[INFO] [stdout] 4 |     pub gender: char,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 5 |     pub single: bool,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 6 |     pub name: String,    
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/myvec.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 112 |     rand.fill(&mut key_bytes);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 112 |     let _ = rand.fill(&mut key_bytes);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `manufacturer`, `model`, and `cc` are never read
[INFO] [stdout]   --> src/myvec.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | struct Car{
[INFO] [stdout]    |        --- fields in this struct
[INFO] [stdout] 49 |     manufacturer: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 50 |     model: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 51 |     cc: u16,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Car` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CounterNonceSequence` is never constructed
[INFO] [stdout]   --> src/myvec.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub struct CounterNonceSequence(u32);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `age`, `gender`, `single`, and `name` are never read
[INFO] [stdout]  --> src/mystructs.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Person{
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 3 |     pub age: u8,
[INFO] [stdout]   |         ^^^
[INFO] [stdout] 4 |     pub gender: char,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 5 |     pub single: bool,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 6 |     pub name: String,    
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/myvec.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 112 |     rand.fill(&mut key_bytes);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 112 |     let _ = rand.fill(&mut key_bytes);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.84s
[INFO] running `Command { std: "docker" "inspect" "7fb3c71a67f3a83d2d845a1dda6673a7c32507077c5c31ac61f73f80557984b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fb3c71a67f3a83d2d845a1dda6673a7c32507077c5c31ac61f73f80557984b5", kill_on_drop: false }`
[INFO] [stdout] 7fb3c71a67f3a83d2d845a1dda6673a7c32507077c5c31ac61f73f80557984b5
