[INFO] updating cached repository dcafferty/rust-notes
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dcafferty/rust-notes
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dcafferty/rust-notes" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/dcafferty/rust-notes"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/dcafferty/rust-notes'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dcafferty/rust-notes" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/dcafferty/rust-notes"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/dcafferty/rust-notes'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 216988d82fb660ab32f2f6156ec2469e8f34027b
[INFO] sha for GitHub repo dcafferty/rust-notes: 216988d82fb660ab32f2f6156ec2469e8f34027b
[INFO] validating manifest of dcafferty/rust-notes on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dcafferty/rust-notes on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dcafferty/rust-notes
[INFO] finished frobbing dcafferty/rust-notes
[INFO] frobbed toml for dcafferty/rust-notes written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/dcafferty/rust-notes/Cargo.toml
[INFO] started frobbing dcafferty/rust-notes
[INFO] finished frobbing dcafferty/rust-notes
[INFO] frobbed toml for dcafferty/rust-notes written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/dcafferty/rust-notes/Cargo.toml
[INFO] crate dcafferty/rust-notes already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking dcafferty/rust-notes against try#06a150c7d11500b41499224f165e9de1de096768 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-6/try#06a150c7d11500b41499224f165e9de1de096768:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/dcafferty/rust-notes:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 60d8612bec4cdc04e95c7f8ddd7bcbfc0f28bc778e8b13a40e6f16fb4359b724
[INFO] running `"docker" "start" "-a" "60d8612bec4cdc04e95c7f8ddd7bcbfc0f28bc778e8b13a40e6f16fb4359b724"`
[INFO] [stderr]     Checking hello_caf v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/enums.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/enums.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/optionmod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/optionmod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/vectors.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/enums.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/enums.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/optionmod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/optionmod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/vectors.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Node`
[INFO] [stderr]   --> src/optionmod.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |         Node => println!("cannot divide {}/{}", x, y),
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_Node`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `while_and_loop`
[INFO] [stderr]   --> src/controls.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn while_and_loop() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `for_loop`
[INFO] [stderr]   --> src/controls.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub fn for_loop() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `match_statement`
[INFO] [stderr]   --> src/controls.rs:63:1
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub fn match_statement() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Color`
[INFO] [stderr]  --> src/enums.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | enum Color {
[INFO] [stderr]   | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `enums`
[INFO] [stderr]   --> src/enums.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn enums() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `option`
[INFO] [stderr]   --> src/enums.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub fn option() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `option`
[INFO] [stderr]  --> src/optionmod.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn option() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `arrays`
[INFO] [stderr]  --> src/arrays.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn arrays() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MEANING_OF_CAFF`
[INFO] [stderr]   --> src/main.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const MEANING_OF_CAFF: u8 = 64; // no fixed address
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `MEANING_VAR`
[INFO] [stderr]   --> src/main.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | static MEANING_VAR: u8 = 54;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `simple_assignment`
[INFO] [stderr]   --> src/main.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn simple_assignment() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fundamental_data_types`
[INFO] [stderr]   --> src/main.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn fundamental_data_types() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `operators`
[INFO] [stderr]   --> src/main.rs:56:1
[INFO] [stderr]    |
[INFO] [stderr] 56 | fn operators() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bitoperators`
[INFO] [stderr]   --> src/main.rs:73:1
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn bitoperators() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `logicaloperators`
[INFO] [stderr]   --> src/main.rs:91:1
[INFO] [stderr]    |
[INFO] [stderr] 91 | fn logicaloperators() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `scope_and_shadowing`
[INFO] [stderr]   --> src/main.rs:99:1
[INFO] [stderr]    |
[INFO] [stderr] 99 | fn scope_and_shadowing() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Node` should have a snake case name
[INFO] [stderr]   --> src/optionmod.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |         Node => println!("cannot divide {}/{}", x, y),
[INFO] [stderr]    |         ^^^^ help: convert the identifier to snake case: `node`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Node`
[INFO] [stderr]   --> src/optionmod.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |         Node => println!("cannot divide {}/{}", x, y),
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_Node`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `while_and_loop`
[INFO] [stderr]   --> src/controls.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn while_and_loop() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `for_loop`
[INFO] [stderr]   --> src/controls.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub fn for_loop() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `match_statement`
[INFO] [stderr]   --> src/controls.rs:63:1
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub fn match_statement() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Color`
[INFO] [stderr]  --> src/enums.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | enum Color {
[INFO] [stderr]   | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `enums`
[INFO] [stderr]   --> src/enums.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn enums() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `option`
[INFO] [stderr]   --> src/enums.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub fn option() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `option`
[INFO] [stderr]  --> src/optionmod.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn option() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `arrays`
[INFO] [stderr]  --> src/arrays.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn arrays() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MEANING_OF_CAFF`
[INFO] [stderr]   --> src/main.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const MEANING_OF_CAFF: u8 = 64; // no fixed address
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `MEANING_VAR`
[INFO] [stderr]   --> src/main.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | static MEANING_VAR: u8 = 54;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `simple_assignment`
[INFO] [stderr]   --> src/main.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn simple_assignment() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fundamental_data_types`
[INFO] [stderr]   --> src/main.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn fundamental_data_types() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `operators`
[INFO] [stderr]   --> src/main.rs:56:1
[INFO] [stderr]    |
[INFO] [stderr] 56 | fn operators() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bitoperators`
[INFO] [stderr]   --> src/main.rs:73:1
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn bitoperators() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `logicaloperators`
[INFO] [stderr]   --> src/main.rs:91:1
[INFO] [stderr]    |
[INFO] [stderr] 91 | fn logicaloperators() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `scope_and_shadowing`
[INFO] [stderr]   --> src/main.rs:99:1
[INFO] [stderr]    |
[INFO] [stderr] 99 | fn scope_and_shadowing() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Node` should have a snake case name
[INFO] [stderr]   --> src/optionmod.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |         Node => println!("cannot divide {}/{}", x, y),
[INFO] [stderr]    |         ^^^^ help: convert the identifier to snake case: `node`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "60d8612bec4cdc04e95c7f8ddd7bcbfc0f28bc778e8b13a40e6f16fb4359b724"`
[INFO] running `"docker" "rm" "-f" "60d8612bec4cdc04e95c7f8ddd7bcbfc0f28bc778e8b13a40e6f16fb4359b724"`
[INFO] [stdout] 60d8612bec4cdc04e95c7f8ddd7bcbfc0f28bc778e8b13a40e6f16fb4359b724