[INFO] updating cached repository csharad/mime-detective
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/csharad/mime-detective
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/csharad/mime-detective" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/csharad/mime-detective"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/csharad/mime-detective'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/csharad/mime-detective" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/csharad/mime-detective"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/csharad/mime-detective'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c92ccadde131081d96b5f030acc65d2b2a80d2f3
[INFO] sha for GitHub repo csharad/mime-detective: c92ccadde131081d96b5f030acc65d2b2a80d2f3
[INFO] validating manifest of csharad/mime-detective on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of csharad/mime-detective on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing csharad/mime-detective
[INFO] finished frobbing csharad/mime-detective
[INFO] frobbed toml for csharad/mime-detective written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/csharad/mime-detective/Cargo.toml
[INFO] started frobbing csharad/mime-detective
[INFO] finished frobbing csharad/mime-detective
[INFO] frobbed toml for csharad/mime-detective written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/csharad/mime-detective/Cargo.toml
[INFO] crate csharad/mime-detective already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking csharad/mime-detective against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/csharad/mime-detective:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a9a14e57f48bee0ccaeda2520da7bf9f18dc72840d0023d99df3a3f90536446c
[INFO] running `"docker" "start" "-a" "a9a14e57f48bee0ccaeda2520da7bf9f18dc72840d0023d99df3a3f90536446c"`
[INFO] [stderr]    Compiling magic-sys v0.2.0
[INFO] [stderr]     Checking mime v0.3.13
[INFO] [stderr]     Checking magic v0.12.2
[INFO] [stderr]     Checking mime-detective v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:84:32
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:84:32
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/lib.rs:86:51
[INFO] [stderr]    |
[INFO] [stderr] 86 |             DetectiveError::Magic(ref err) => err.cause(),
[INFO] [stderr]    |                                                   ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/lib.rs:87:51
[INFO] [stderr]    |
[INFO] [stderr] 87 |             DetectiveError::Parse(ref err) => err.cause(),
[INFO] [stderr]    |                                                   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/lib.rs:88:48
[INFO] [stderr]    |
[INFO] [stderr] 88 |             DetectiveError::IO(ref err) => err.cause(),
[INFO] [stderr]    |                                                ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/lib.rs:86:51
[INFO] [stderr]    |
[INFO] [stderr] 86 |             DetectiveError::Magic(ref err) => err.cause(),
[INFO] [stderr]    |                                                   ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/lib.rs:87:51
[INFO] [stderr]    |
[INFO] [stderr] 87 |             DetectiveError::Parse(ref err) => err.cause(),
[INFO] [stderr]    |                                                   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/lib.rs:88:48
[INFO] [stderr]    |
[INFO] [stderr] 88 |             DetectiveError::IO(ref err) => err.cause(),
[INFO] [stderr]    |                                                ^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `"docker" "inspect" "a9a14e57f48bee0ccaeda2520da7bf9f18dc72840d0023d99df3a3f90536446c"`
[INFO] running `"docker" "rm" "-f" "a9a14e57f48bee0ccaeda2520da7bf9f18dc72840d0023d99df3a3f90536446c"`
[INFO] [stdout] a9a14e57f48bee0ccaeda2520da7bf9f18dc72840d0023d99df3a3f90536446c