[INFO] cloning repository https://github.com/themangomago/rust-crash-course
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/themangomago/rust-crash-course" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthemangomago%2Frust-crash-course", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthemangomago%2Frust-crash-course'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 76bcde1744506e0b5da1c468c2cc5aea7c7c7878
[INFO] checking themangomago/rust-crash-course against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthemangomago%2Frust-crash-course" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/themangomago/rust-crash-course on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/themangomago/rust-crash-course
[INFO] finished tweaking git repo https://github.com/themangomago/rust-crash-course
[INFO] tweaked toml for git repo https://github.com/themangomago/rust-crash-course written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/themangomago/rust-crash-course already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", 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] 94c05b0a2cf2fd7e551ab07bc9c39867aa45b73749f91597119db47a6005db15
[INFO] running `Command { std: "docker" "start" "-a" "94c05b0a2cf2fd7e551ab07bc9c39867aa45b73749f91597119db47a6005db15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94c05b0a2cf2fd7e551ab07bc9c39867aa45b73749f91597119db47a6005db15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94c05b0a2cf2fd7e551ab07bc9c39867aa45b73749f91597119db47a6005db15", kill_on_drop: false }`
[INFO] [stdout] 94c05b0a2cf2fd7e551ab07bc9c39867aa45b73749f91597119db47a6005db15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 552973f71b9fb443c430c7c9621e1d5eb5ec16202f9963df091a876f347013ee
[INFO] running `Command { std: "docker" "start" "-a" "552973f71b9fb443c430c7c9621e1d5eb5ec16202f9963df091a876f347013ee", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking rust-crash-course v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/generics.rs (7 fixes)
[INFO] [stderr]        Fixed src/arrays.rs (1 fix)
[INFO] [stderr]        Fixed src/functions.rs (1 fix)
[INFO] [stderr]        Fixed src/structs.rs (1 fix)
[INFO] [stdout] warning: variant is never constructed: `Down`
[INFO] [stdout]  --> src/enums.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Down,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Right`
[INFO] [stdout]  --> src/enums.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Right,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_anything`
[INFO] [stdout]  --> src/generics.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn takes_anything<T>(_x: T) { // x has type T, T is a generic type
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_two_of_the_same_things`
[INFO] [stdout]  --> src/generics.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn takes_two_of_the_same_things<T>(_x: T, _y: T) { // Both x and y has the same type
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_two_things`
[INFO] [stdout]  --> src/generics.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn takes_two_things<T, U>(_x: T, _y: U) { // Multiple types
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> src/generics.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     x: T,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> src/generics.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     y: T,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `NanoSeconds`
[INFO] [stdout]   --> src/types.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | type NanoSeconds = u64;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `checkId` should have a snake case name
[INFO] [stdout]  --> src/conditionals.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let checkId = false;
[INFO] [stdout]   |         ^^^^^^^ help: convert the identifier to snake case: `check_id`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Down`
[INFO] [stdout]  --> src/enums.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Down,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Right`
[INFO] [stdout]  --> src/enums.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Right,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_anything`
[INFO] [stdout]  --> src/generics.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn takes_anything<T>(_x: T) { // x has type T, T is a generic type
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_two_of_the_same_things`
[INFO] [stdout]  --> src/generics.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn takes_two_of_the_same_things<T>(_x: T, _y: T) { // Both x and y has the same type
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_two_things`
[INFO] [stdout]  --> src/generics.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn takes_two_things<T, U>(_x: T, _y: U) { // Multiple types
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> src/generics.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     x: T,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> src/generics.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     y: T,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `NanoSeconds`
[INFO] [stdout]   --> src/types.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | type NanoSeconds = u64;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `checkId` should have a snake case name
[INFO] [stdout]  --> src/conditionals.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let checkId = false;
[INFO] [stdout]   |         ^^^^^^^ help: convert the identifier to snake case: `check_id`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.79s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking rust-crash-course v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: variant is never constructed: `Down`
[INFO] [stdout]  --> src/enums.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Down,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Right`
[INFO] [stdout]  --> src/enums.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Right,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_anything`
[INFO] [stdout]  --> src/generics.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn takes_anything<T>(_x: T) { // x has type T, T is a generic type
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_two_of_the_same_things`
[INFO] [stdout]  --> src/generics.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn takes_two_of_the_same_things<T>(_x: T, _y: T) { // Both x and y has the same type
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_two_things`
[INFO] [stdout]  --> src/generics.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn takes_two_things<T, U>(_x: T, _y: U) { // Multiple types
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> src/generics.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     x: T,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> src/generics.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     y: T,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `NanoSeconds`
[INFO] [stdout]   --> src/types.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | type NanoSeconds = u64;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `checkId` should have a snake case name
[INFO] [stdout]  --> src/conditionals.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let checkId = false;
[INFO] [stdout]   |         ^^^^^^^ help: convert the identifier to snake case: `check_id`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Down`
[INFO] [stdout]  --> src/enums.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Down,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Right`
[INFO] [stdout]  --> src/enums.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Right,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_anything`
[INFO] [stdout]  --> src/generics.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn takes_anything<T>(_x: T) { // x has type T, T is a generic type
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_two_of_the_same_things`
[INFO] [stdout]  --> src/generics.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn takes_two_of_the_same_things<T>(_x: T, _y: T) { // Both x and y has the same type
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_two_things`
[INFO] [stdout]  --> src/generics.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn takes_two_things<T, U>(_x: T, _y: U) { // Multiple types
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> src/generics.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     x: T,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> src/generics.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     y: T,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `NanoSeconds`
[INFO] [stdout]   --> src/types.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | type NanoSeconds = u64;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `checkId` should have a snake case name
[INFO] [stdout]  --> src/conditionals.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let checkId = false;
[INFO] [stdout]   |         ^^^^^^^ help: convert the identifier to snake case: `check_id`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "552973f71b9fb443c430c7c9621e1d5eb5ec16202f9963df091a876f347013ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "552973f71b9fb443c430c7c9621e1d5eb5ec16202f9963df091a876f347013ee", kill_on_drop: false }`
[INFO] [stdout] 552973f71b9fb443c430c7c9621e1d5eb5ec16202f9963df091a876f347013ee