[INFO] updating cached repository michael-robbins/filemapper
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/michael-robbins/filemapper
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/michael-robbins/filemapper" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/michael-robbins/filemapper"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/michael-robbins/filemapper'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/michael-robbins/filemapper" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/michael-robbins/filemapper"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/michael-robbins/filemapper'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a92a4ed3b7e2cea28bc2dd07f752ee2cd316967b
[INFO] sha for GitHub repo michael-robbins/filemapper: a92a4ed3b7e2cea28bc2dd07f752ee2cd316967b
[INFO] validating manifest of michael-robbins/filemapper 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 michael-robbins/filemapper 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 michael-robbins/filemapper
[INFO] finished frobbing michael-robbins/filemapper
[INFO] frobbed toml for michael-robbins/filemapper written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/michael-robbins/filemapper/Cargo.toml
[INFO] started frobbing michael-robbins/filemapper
[INFO] finished frobbing michael-robbins/filemapper
[INFO] frobbed toml for michael-robbins/filemapper written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/michael-robbins/filemapper/Cargo.toml
[INFO] crate michael-robbins/filemapper already has a lockfile, it will not be regenerated
[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] checking michael-robbins/filemapper against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-7/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/michael-robbins/filemapper:/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] 8babf06efeeeed3002b5fb29c13c400aabed7fd7e2c5604910c1e3649bb7e97e
[INFO] running `"docker" "start" "-a" "8babf06efeeeed3002b5fb29c13c400aabed7fd7e2c5604910c1e3649bb7e97e"`
[INFO] [stderr]    Compiling serde v1.0.68
[INFO] [stderr]    Compiling bzip2-sys v0.1.6
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking csv v1.0.0
[INFO] [stderr]     Checking file_mapper v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/helpers.rs:12:41
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn open_file(filename: &str) -> Box<Read> {
[INFO] [stderr]    |                                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/helpers.rs:22:27
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let decompressor: Box<Read> = match file_path.extension().unwrap_or_default().to_str() {
[INFO] [stderr]    |                           ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mapping_file.rs:14:16
[INFO] [stderr]    |
[INFO] [stderr] 14 |     cache: Box<MappingCache>,
[INFO] [stderr]    |                ^^^^^^^^^^^^ help: use `dyn`: `dyn MappingCache`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/helpers.rs:12:41
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn open_file(filename: &str) -> Box<Read> {
[INFO] [stderr]    |                                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/helpers.rs:22:27
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let decompressor: Box<Read> = match file_path.extension().unwrap_or_default().to_str() {
[INFO] [stderr]    |                           ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mapping_file.rs:14:16
[INFO] [stderr]    |
[INFO] [stderr] 14 |     cache: Box<MappingCache>,
[INFO] [stderr]    |                ^^^^^^^^^^^^ help: use `dyn`: `dyn MappingCache`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.44s
[INFO] running `"docker" "inspect" "8babf06efeeeed3002b5fb29c13c400aabed7fd7e2c5604910c1e3649bb7e97e"`
[INFO] running `"docker" "rm" "-f" "8babf06efeeeed3002b5fb29c13c400aabed7fd7e2c5604910c1e3649bb7e97e"`
[INFO] [stdout] 8babf06efeeeed3002b5fb29c13c400aabed7fd7e2c5604910c1e3649bb7e97e