[INFO] updating cached repository dalance/ptags
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dalance/ptags
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dalance/ptags" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/dalance/ptags"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/dalance/ptags'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dalance/ptags" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/dalance/ptags"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/dalance/ptags'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 82ad4095e42fd75aedb374749d6f60f677563c0e
[INFO] sha for GitHub repo dalance/ptags: 82ad4095e42fd75aedb374749d6f60f677563c0e
[INFO] validating manifest of dalance/ptags on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dalance/ptags on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dalance/ptags
[INFO] finished frobbing dalance/ptags
[INFO] frobbed toml for dalance/ptags written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/dalance/ptags/Cargo.toml
[INFO] started frobbing dalance/ptags
[INFO] finished frobbing dalance/ptags
[INFO] frobbed toml for dalance/ptags written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/dalance/ptags/Cargo.toml
[INFO] crate dalance/ptags has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] building dalance/ptags against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/dalance/ptags:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 2133d4384e16f1303814c5d5d52ddcbb8af63cb087178f960febb0103e1261b7
[INFO] running `"docker" "start" "-a" "2133d4384e16f1303814c5d5d52ddcbb8af63cb087178f960febb0103e1261b7"`
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling dirs v1.0.4
[INFO] [stderr]    Compiling toml v0.4.6
[INFO] [stderr]    Compiling syn v0.12.14
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling structopt-derive v0.2.5
[INFO] [stderr]    Compiling structopt-toml-derive v0.2.4
[INFO] [stderr]    Compiling structopt v0.2.5
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling structopt-toml v0.2.4
[INFO] [stderr]    Compiling ptags v0.2.2-pre (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | #[macro_use]
[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/bin.rs:120:1
[INFO] [stderr]     |
[INFO] [stderr] 120 | / error_chain! {
[INFO] [stderr] 121 | |     links {
[INFO] [stderr] 122 | |         Git(super::cmd_git::Error, super::cmd_git::ErrorKind);
[INFO] [stderr] 123 | |         Ctags(super::cmd_ctags::Error, super::cmd_ctags::ErrorKind);
[INFO] [stderr] ...   |
[INFO] [stderr] 130 | |     }
[INFO] [stderr] 131 | | }
[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/bin.rs:120:1
[INFO] [stderr]     |
[INFO] [stderr] 120 | / error_chain! {
[INFO] [stderr] 121 | |     links {
[INFO] [stderr] 122 | |         Git(super::cmd_git::Error, super::cmd_git::ErrorKind);
[INFO] [stderr] 123 | |         Ctags(super::cmd_ctags::Error, super::cmd_ctags::ErrorKind);
[INFO] [stderr] ...   |
[INFO] [stderr] 130 | |     }
[INFO] [stderr] 131 | | }
[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/cmd_ctags.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | / error_chain! {
[INFO] [stderr] 21 | |     foreign_links {
[INFO] [stderr] 22 | |         Io(::std::io::Error);
[INFO] [stderr] 23 | |         Utf8(::std::str::Utf8Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 40 | |     }
[INFO] [stderr] 41 | | }
[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/cmd_git.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | / error_chain! {
[INFO] [stderr] 10 | |     foreign_links {
[INFO] [stderr] 11 | |         Io(::std::io::Error);
[INFO] [stderr] 12 | |         Utf8(::std::str::Utf8Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 27 | |     }
[INFO] [stderr] 28 | | }
[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 48.70s
[INFO] running `"docker" "inspect" "2133d4384e16f1303814c5d5d52ddcbb8af63cb087178f960febb0103e1261b7"`
[INFO] running `"docker" "rm" "-f" "2133d4384e16f1303814c5d5d52ddcbb8af63cb087178f960febb0103e1261b7"`
[INFO] [stdout] 2133d4384e16f1303814c5d5d52ddcbb8af63cb087178f960febb0103e1261b7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/dalance/ptags:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7f251110dd26754e080696b2413069b17800b21cd4ff1e672f1e8fc2b1fe4bd6
[INFO] running `"docker" "start" "-a" "7f251110dd26754e080696b2413069b17800b21cd4ff1e672f1e8fc2b1fe4bd6"`
[INFO] [stderr]    Compiling bencher v0.1.5
[INFO] [stderr]    Compiling ptags v0.2.2-pre (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | #[macro_use]
[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/bin.rs:120:1
[INFO] [stderr]     |
[INFO] [stderr] 120 | / error_chain! {
[INFO] [stderr] 121 | |     links {
[INFO] [stderr] 122 | |         Git(super::cmd_git::Error, super::cmd_git::ErrorKind);
[INFO] [stderr] 123 | |         Ctags(super::cmd_ctags::Error, super::cmd_ctags::ErrorKind);
[INFO] [stderr] ...   |
[INFO] [stderr] 130 | |     }
[INFO] [stderr] 131 | | }
[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/bin.rs:120:1
[INFO] [stderr]     |
[INFO] [stderr] 120 | / error_chain! {
[INFO] [stderr] 121 | |     links {
[INFO] [stderr] 122 | |         Git(super::cmd_git::Error, super::cmd_git::ErrorKind);
[INFO] [stderr] 123 | |         Ctags(super::cmd_ctags::Error, super::cmd_ctags::ErrorKind);
[INFO] [stderr] ...   |
[INFO] [stderr] 130 | |     }
[INFO] [stderr] 131 | | }
[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/cmd_ctags.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | / error_chain! {
[INFO] [stderr] 21 | |     foreign_links {
[INFO] [stderr] 22 | |         Io(::std::io::Error);
[INFO] [stderr] 23 | |         Utf8(::std::str::Utf8Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 40 | |     }
[INFO] [stderr] 41 | | }
[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/cmd_git.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | / error_chain! {
[INFO] [stderr] 10 | |     foreign_links {
[INFO] [stderr] 11 | |         Io(::std::io::Error);
[INFO] [stderr] 12 | |         Utf8(::std::str::Utf8Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 27 | |     }
[INFO] [stderr] 28 | | }
[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 8.75s
[INFO] running `"docker" "inspect" "7f251110dd26754e080696b2413069b17800b21cd4ff1e672f1e8fc2b1fe4bd6"`
[INFO] running `"docker" "rm" "-f" "7f251110dd26754e080696b2413069b17800b21cd4ff1e672f1e8fc2b1fe4bd6"`
[INFO] [stdout] 7f251110dd26754e080696b2413069b17800b21cd4ff1e672f1e8fc2b1fe4bd6