[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 try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtheCodedMike%2Frust-quiz" "/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/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-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/theCodedMike/rust-quiz on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3549a57193d544ee26fae028bc3fca983f08a0f436e853475d70d6982bc4ebdb
[INFO] running `Command { std: "docker" "start" "-a" "3549a57193d544ee26fae028bc3fca983f08a0f436e853475d70d6982bc4ebdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3549a57193d544ee26fae028bc3fca983f08a0f436e853475d70d6982bc4ebdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3549a57193d544ee26fae028bc3fca983f08a0f436e853475d70d6982bc4ebdb", kill_on_drop: false }`
[INFO] [stdout] 3549a57193d544ee26fae028bc3fca983f08a0f436e853475d70d6982bc4ebdb
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a619e01b139c0a500e637dcfa21d3440a54622f3356ba554df8357496049254
[INFO] running `Command { std: "docker" "start" "-a" "5a619e01b139c0a500e637dcfa21d3440a54622f3356ba554df8357496049254", 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] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/bin/quiz_2/rust_quiz_2.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let f = || (() & S(1));
[INFO] [stdout]    |                ^         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 15 -     let f = || (() & S(1));
[INFO] [stdout] 15 +     let f = || () & S(1);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/bin/quiz_2/rust_quiz_2.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let f = || (() & S(1));
[INFO] [stdout]    |                ^         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 15 -     let f = || (() & S(1));
[INFO] [stdout] 15 +     let f = || () & S(1);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "5a619e01b139c0a500e637dcfa21d3440a54622f3356ba554df8357496049254", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a619e01b139c0a500e637dcfa21d3440a54622f3356ba554df8357496049254", kill_on_drop: false }`
[INFO] [stdout] 5a619e01b139c0a500e637dcfa21d3440a54622f3356ba554df8357496049254
