[INFO] updating cached repository Fedcomp/rxxma
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Fedcomp/rxxma
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Fedcomp/rxxma" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/Fedcomp/rxxma"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/Fedcomp/rxxma'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Fedcomp/rxxma" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/Fedcomp/rxxma"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/Fedcomp/rxxma'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f6496fbd9b13f09bb3aadeda3622e9eec6b1adc2
[INFO] sha for GitHub repo Fedcomp/rxxma: f6496fbd9b13f09bb3aadeda3622e9eec6b1adc2
[INFO] validating manifest of Fedcomp/rxxma on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Fedcomp/rxxma on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Fedcomp/rxxma
[INFO] finished frobbing Fedcomp/rxxma
[INFO] frobbed toml for Fedcomp/rxxma written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/Fedcomp/rxxma/Cargo.toml
[INFO] started frobbing Fedcomp/rxxma
[INFO] finished frobbing Fedcomp/rxxma
[INFO] frobbed toml for Fedcomp/rxxma written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/Fedcomp/rxxma/Cargo.toml
[INFO] crate Fedcomp/rxxma already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Fedcomp/rxxma against try#99a7498759a22b5684caf798a98b7e90ad9d2443 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-1/try#99a7498759a22b5684caf798a98b7e90ad9d2443:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/Fedcomp/rxxma:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7979db4bc45f4e5de1c601b4fb3d43fcf7d67380526453de2870f2c3366cb715
[INFO] running `"docker" "start" "-a" "7979db4bc45f4e5de1c601b4fb3d43fcf7d67380526453de2870f2c3366cb715"`
[INFO] [stderr]     Checking regex v0.2.7
[INFO] [stderr]     Checking backtrace v0.3.7
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking env_logger v0.5.4
[INFO] [stderr]     Checking rxxma v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ast/decompiler.rs:62:25
[INFO] [stderr]    |
[INFO] [stderr] 62 |             if let Some(mut f) = current_function.as_mut() {
[INFO] [stderr]    |                         ----^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ast/decompiler.rs:97:17
[INFO] [stderr]    |
[INFO] [stderr] 97 |             let mut current_tree = &mut function.tree_elements;
[INFO] [stderr]    |                 ----^^^^^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ast/decompiler.rs:102:21
[INFO] [stderr]     |
[INFO] [stderr] 102 |                 let mut position = addr - 1;
[INFO] [stderr]     |                     ----^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ast/decompiler.rs:145:17
[INFO] [stderr]     |
[INFO] [stderr] 145 |             let mut current_tree = &mut function.tree_elements;
[INFO] [stderr]     |                 ----^^^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ast/decompiler.rs:62:25
[INFO] [stderr]    |
[INFO] [stderr] 62 |             if let Some(mut f) = current_function.as_mut() {
[INFO] [stderr]    |                         ----^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ast/decompiler.rs:97:17
[INFO] [stderr]    |
[INFO] [stderr] 97 |             let mut current_tree = &mut function.tree_elements;
[INFO] [stderr]    |                 ----^^^^^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ast/decompiler.rs:102:21
[INFO] [stderr]     |
[INFO] [stderr] 102 |                 let mut position = addr - 1;
[INFO] [stderr]     |                     ----^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ast/decompiler.rs:145:17
[INFO] [stderr]     |
[INFO] [stderr] 145 |             let mut current_tree = &mut function.tree_elements;
[INFO] [stderr]     |                 ----^^^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.93s
[INFO] running `"docker" "inspect" "7979db4bc45f4e5de1c601b4fb3d43fcf7d67380526453de2870f2c3366cb715"`
[INFO] running `"docker" "rm" "-f" "7979db4bc45f4e5de1c601b4fb3d43fcf7d67380526453de2870f2c3366cb715"`
[INFO] [stdout] 7979db4bc45f4e5de1c601b4fb3d43fcf7d67380526453de2870f2c3366cb715