[INFO] updating cached repository ANtlord/system_ladder
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ANtlord/system_ladder
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ANtlord/system_ladder" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/ANtlord/system_ladder"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/ANtlord/system_ladder'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ANtlord/system_ladder" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/ANtlord/system_ladder"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/ANtlord/system_ladder'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a62d11a6103840582855bd5fdd765b5ec179a3e1
[INFO] sha for GitHub repo ANtlord/system_ladder: a62d11a6103840582855bd5fdd765b5ec179a3e1
[INFO] validating manifest of ANtlord/system_ladder on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ANtlord/system_ladder on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ANtlord/system_ladder
[INFO] finished frobbing ANtlord/system_ladder
[INFO] frobbed toml for ANtlord/system_ladder written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/ANtlord/system_ladder/Cargo.toml
[INFO] started frobbing ANtlord/system_ladder
[INFO] finished frobbing ANtlord/system_ladder
[INFO] frobbed toml for ANtlord/system_ladder written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/ANtlord/system_ladder/Cargo.toml
[INFO] crate ANtlord/system_ladder already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ANtlord/system_ladder against master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-3/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/ANtlord/system_ladder:/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" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 52e024a1cd86888c5863b7e6f4fb1c6fb2b10e3e0169a332c127a8073bdb0400
[INFO] running `"docker" "start" "-a" "52e024a1cd86888c5863b7e6f4fb1c6fb2b10e3e0169a332c127a8073bdb0400"`
[INFO] [stderr]     Checking system_ladder v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::any::TypeId`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::any::TypeId;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `point` should have an upper camel case name
[INFO] [stderr]   --> src/main.rs:38:8
[INFO] [stderr]    |
[INFO] [stderr] 38 | struct point(i32, i32);
[INFO] [stderr]    |        ^^^^^ help: convert the identifier to upper camel case: `Point`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/main.rs:42:20
[INFO] [stderr]    |
[INFO] [stderr] 42 |         fn callee2(a: i32, b: i32) {
[INFO] [stderr]    |                    ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/main.rs:42:28
[INFO] [stderr]    |
[INFO] [stderr] 42 |         fn callee2(a: i32, b: i32) {
[INFO] [stderr]    |                            ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/main.rs:48:25
[INFO] [stderr]    |
[INFO] [stderr] 48 |         fn callee(self, a: i32, b: i32) {
[INFO] [stderr]    |                         ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/main.rs:48:33
[INFO] [stderr]    |
[INFO] [stderr] 48 |         fn callee(self, a: i32, b: i32) {
[INFO] [stderr]    |                                 ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::any::TypeId`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::any::TypeId;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `point` should have an upper camel case name
[INFO] [stderr]   --> src/main.rs:38:8
[INFO] [stderr]    |
[INFO] [stderr] 38 | struct point(i32, i32);
[INFO] [stderr]    |        ^^^^^ help: convert the identifier to upper camel case: `Point`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/main.rs:42:20
[INFO] [stderr]    |
[INFO] [stderr] 42 |         fn callee2(a: i32, b: i32) {
[INFO] [stderr]    |                    ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/main.rs:42:28
[INFO] [stderr]    |
[INFO] [stderr] 42 |         fn callee2(a: i32, b: i32) {
[INFO] [stderr]    |                            ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/main.rs:48:25
[INFO] [stderr]    |
[INFO] [stderr] 48 |         fn callee(self, a: i32, b: i32) {
[INFO] [stderr]    |                         ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/main.rs:48:33
[INFO] [stderr]    |
[INFO] [stderr] 48 |         fn callee(self, a: i32, b: i32) {
[INFO] [stderr]    |                                 ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `"docker" "inspect" "52e024a1cd86888c5863b7e6f4fb1c6fb2b10e3e0169a332c127a8073bdb0400"`
[INFO] running `"docker" "rm" "-f" "52e024a1cd86888c5863b7e6f4fb1c6fb2b10e3e0169a332c127a8073bdb0400"`
[INFO] [stdout] 52e024a1cd86888c5863b7e6f4fb1c6fb2b10e3e0169a332c127a8073bdb0400