[INFO] crate drumatech 0.1.9 is already in cache
[INFO] extracting crate drumatech 0.1.9 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/drumatech/0.1.9
[INFO] extracting crate drumatech 0.1.9 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/drumatech/0.1.9
[INFO] validating manifest of drumatech-0.1.9 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of drumatech-0.1.9 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing drumatech-0.1.9
[INFO] finished frobbing drumatech-0.1.9
[INFO] frobbed toml for drumatech-0.1.9 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/drumatech/0.1.9/Cargo.toml
[INFO] started frobbing drumatech-0.1.9
[INFO] finished frobbing drumatech-0.1.9
[INFO] frobbed toml for drumatech-0.1.9 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/drumatech/0.1.9/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking drumatech-0.1.9 against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-5/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/drumatech/0.1.9:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 879eacdbbf5d6f8388d62b380432067a69de0d6038f6895a774ad8e4308999fc
[INFO] running `"docker" "start" "-a" "879eacdbbf5d6f8388d62b380432067a69de0d6038f6895a774ad8e4308999fc"`
[INFO] [stderr]     Checking drumatech v0.1.9 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/fileu.rs:10:59
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn filepath_to_content(s: &str) -> Result<String, Box<std::error::Error>> {
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `idx`
[INFO] [stderr]    --> src/structure.rs:318:17
[INFO] [stderr]     |
[INFO] [stderr] 318 |         let mut idx: usize = self.size;
[INFO] [stderr]     |                 ^^^ help: consider prefixing with an underscore: `_idx`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/structure.rs:318:13
[INFO] [stderr]     |
[INFO] [stderr] 318 |         let mut idx: usize = self.size;
[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: comparison is useless due to type limits
[INFO] [stderr]    --> src/structure.rs:141:12
[INFO] [stderr]     |
[INFO] [stderr] 141 |         if 0 > index || self.size < index {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/structure.rs:158:12
[INFO] [stderr]     |
[INFO] [stderr] 158 |         if 0 > index || self.size < index {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/structure.rs:271:12
[INFO] [stderr]     |
[INFO] [stderr] 271 |         if 0 > index || self.size < index {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/structure.rs:288:12
[INFO] [stderr]     |
[INFO] [stderr] 288 |         if 0 > index || self.size < index {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/fileu.rs:10:59
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn filepath_to_content(s: &str) -> Result<String, Box<std::error::Error>> {
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `idx`
[INFO] [stderr]    --> src/structure.rs:318:17
[INFO] [stderr]     |
[INFO] [stderr] 318 |         let mut idx: usize = self.size;
[INFO] [stderr]     |                 ^^^ help: consider prefixing with an underscore: `_idx`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/structure.rs:318:13
[INFO] [stderr]     |
[INFO] [stderr] 318 |         let mut idx: usize = self.size;
[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: comparison is useless due to type limits
[INFO] [stderr]    --> src/structure.rs:141:12
[INFO] [stderr]     |
[INFO] [stderr] 141 |         if 0 > index || self.size < index {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/structure.rs:158:12
[INFO] [stderr]     |
[INFO] [stderr] 158 |         if 0 > index || self.size < index {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/structure.rs:271:12
[INFO] [stderr]     |
[INFO] [stderr] 271 |         if 0 > index || self.size < index {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/structure.rs:288:12
[INFO] [stderr]     |
[INFO] [stderr] 288 |         if 0 > index || self.size < index {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "879eacdbbf5d6f8388d62b380432067a69de0d6038f6895a774ad8e4308999fc"`
[INFO] running `"docker" "rm" "-f" "879eacdbbf5d6f8388d62b380432067a69de0d6038f6895a774ad8e4308999fc"`
[INFO] [stdout] 879eacdbbf5d6f8388d62b380432067a69de0d6038f6895a774ad8e4308999fc