[INFO] updating cached repository jtdowney/b2sum-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jtdowney/b2sum-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jtdowney/b2sum-rs" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/jtdowney/b2sum-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/jtdowney/b2sum-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jtdowney/b2sum-rs" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/jtdowney/b2sum-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/jtdowney/b2sum-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c5f7dff35589b61c2bcb33bd6d3b5f5cd48f5cf4
[INFO] sha for GitHub repo jtdowney/b2sum-rs: c5f7dff35589b61c2bcb33bd6d3b5f5cd48f5cf4
[INFO] validating manifest of jtdowney/b2sum-rs on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jtdowney/b2sum-rs on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jtdowney/b2sum-rs
[INFO] finished frobbing jtdowney/b2sum-rs
[INFO] frobbed toml for jtdowney/b2sum-rs written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/jtdowney/b2sum-rs/Cargo.toml
[INFO] started frobbing jtdowney/b2sum-rs
[INFO] finished frobbing jtdowney/b2sum-rs
[INFO] frobbed toml for jtdowney/b2sum-rs written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/jtdowney/b2sum-rs/Cargo.toml
[INFO] crate jtdowney/b2sum-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jtdowney/b2sum-rs against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-0/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/jtdowney/b2sum-rs:/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ff97eff27bf425ec595761dde97d28d252bf76127b68f141ea89edfebe43b796
[INFO] running `"docker" "start" "-a" "ff97eff27bf425ec595761dde97d28d252bf76127b68f141ea89edfebe43b796"`
[INFO] [stderr]    Compiling gcc v0.3.48
[INFO] [stderr]     Checking constant_time_eq v0.1.2
[INFO] [stderr]     Checking docopt v0.7.0
[INFO] [stderr]     Checking blake2-rfc v0.2.17
[INFO] [stderr]    Compiling backtrace-sys v0.1.11
[INFO] [stderr]     Checking backtrace v0.3.2
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking b2sum v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | /     error_chain! {
[INFO] [stderr] 11 | |         foreign_links {
[INFO] [stderr] 12 | |             Fmt(::std::fmt::Error);
[INFO] [stderr] 13 | |             Io(::std::io::Error);
[INFO] [stderr] 14 | |         }
[INFO] [stderr] 15 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | /     error_chain! {
[INFO] [stderr] 11 | |         foreign_links {
[INFO] [stderr] 12 | |             Fmt(::std::fmt::Error);
[INFO] [stderr] 13 | |             Io(::std::io::Error);
[INFO] [stderr] 14 | |         }
[INFO] [stderr] 15 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | /     error_chain! {
[INFO] [stderr] 11 | |         foreign_links {
[INFO] [stderr] 12 | |             Fmt(::std::fmt::Error);
[INFO] [stderr] 13 | |             Io(::std::io::Error);
[INFO] [stderr] 14 | |         }
[INFO] [stderr] 15 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | /     error_chain! {
[INFO] [stderr] 11 | |         foreign_links {
[INFO] [stderr] 12 | |             Fmt(::std::fmt::Error);
[INFO] [stderr] 13 | |             Io(::std::io::Error);
[INFO] [stderr] 14 | |         }
[INFO] [stderr] 15 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.37s
[INFO] running `"docker" "inspect" "ff97eff27bf425ec595761dde97d28d252bf76127b68f141ea89edfebe43b796"`
[INFO] running `"docker" "rm" "-f" "ff97eff27bf425ec595761dde97d28d252bf76127b68f141ea89edfebe43b796"`
[INFO] [stdout] ff97eff27bf425ec595761dde97d28d252bf76127b68f141ea89edfebe43b796