[INFO] cloning repository https://github.com/theCodedMike/rust-quiz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/theCodedMike/rust-quiz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtheCodedMike%2Frust-quiz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtheCodedMike%2Frust-quiz'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtheCodedMike%2Frust-quiz: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/theCodedMike/rust-quiz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/theCodedMike/rust-quiz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtheCodedMike%2Frust-quiz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtheCodedMike%2Frust-quiz'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 62b5d8f7b96ef8e415a969ea6e550847f95cbf14
[INFO] checking theCodedMike/rust-quiz against master#cb06d12710575a0d7ff71d6fe108f3bcff4f9195 for pr-128425-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtheCodedMike%2Frust-quiz" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/theCodedMike/rust-quiz on toolchain cb06d12710575a0d7ff71d6fe108f3bcff4f9195
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cb06d12710575a0d7ff71d6fe108f3bcff4f9195" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/theCodedMike/rust-quiz
[INFO] finished tweaking git repo https://github.com/theCodedMike/rust-quiz
[INFO] tweaked toml for git repo https://github.com/theCodedMike/rust-quiz written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/theCodedMike/rust-quiz 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" "+cb06d12710575a0d7ff71d6fe108f3bcff4f9195" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+cb06d12710575a0d7ff71d6fe108f3bcff4f9195" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d91ffdd4bbb53426300c829995c7881cd9628a9beeca3d637770c9f8b5bb6ee9
[INFO] running `Command { std: "docker" "start" "-a" "d91ffdd4bbb53426300c829995c7881cd9628a9beeca3d637770c9f8b5bb6ee9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d91ffdd4bbb53426300c829995c7881cd9628a9beeca3d637770c9f8b5bb6ee9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d91ffdd4bbb53426300c829995c7881cd9628a9beeca3d637770c9f8b5bb6ee9", kill_on_drop: false }`
[INFO] [stdout] d91ffdd4bbb53426300c829995c7881cd9628a9beeca3d637770c9f8b5bb6ee9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+cb06d12710575a0d7ff71d6fe108f3bcff4f9195" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce8f08cc8c6cf746a7ce2a93a732b983879f74b09c05c079dada745c1ea3d7df
[INFO] running `Command { std: "docker" "start" "-a" "ce8f08cc8c6cf746a7ce2a93a732b983879f74b09c05c079dada745c1ea3d7df", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-quiz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]   --> src/bin/quiz_3/rust_quiz_3.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let v = &mut S;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]    = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]   --> src/bin/quiz_3/rust_quiz_3.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | const S: S = S { x: 2 };
[INFO] [stdout]    | ^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(const_item_mutation)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: attempting to modify a `const` item
[INFO] [stdout]   --> src/bin/quiz_3/rust_quiz_3.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     S.x += 1;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: each usage of a `const` item creates a new temporary; the original `const` item will not be modified
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]   --> src/bin/quiz_3/rust_quiz_3.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | const S: S = S { x: 2 };
[INFO] [stdout]    | ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]   --> src/bin/quiz_3/rust_quiz_3.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let v = &mut S;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]    = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]   --> src/bin/quiz_3/rust_quiz_3.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | const S: S = S { x: 2 };
[INFO] [stdout]    | ^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(const_item_mutation)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: attempting to modify a `const` item
[INFO] [stdout]   --> src/bin/quiz_3/rust_quiz_3.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     S.x += 1;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: each usage of a `const` item creates a new temporary; the original `const` item will not be modified
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]   --> src/bin/quiz_3/rust_quiz_3.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | const S: S = S { x: 2 };
[INFO] [stdout]    | ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "ce8f08cc8c6cf746a7ce2a93a732b983879f74b09c05c079dada745c1ea3d7df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce8f08cc8c6cf746a7ce2a93a732b983879f74b09c05c079dada745c1ea3d7df", kill_on_drop: false }`
[INFO] [stdout] ce8f08cc8c6cf746a7ce2a93a732b983879f74b09c05c079dada745c1ea3d7df