[INFO] cloning repository https://github.com/vitiral/replace.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vitiral/replace.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvitiral%2Freplace.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvitiral%2Freplace.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 246ff7c9b8b91c5d81d8ee41d25d42020e731f03
[INFO] checking vitiral/replace.rs against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvitiral%2Freplace.rs" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vitiral/replace.rs on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vitiral/replace.rs
[INFO] finished tweaking git repo https://github.com/vitiral/replace.rs
[INFO] tweaked toml for git repo https://github.com/vitiral/replace.rs written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/vitiral/replace.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c02bb5e79ed5bbe7a3aa4d87f63212198b5595b9fb4b890de1f125d9da9cf985
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c02bb5e79ed5bbe7a3aa4d87f63212198b5595b9fb4b890de1f125d9da9cf985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c02bb5e79ed5bbe7a3aa4d87f63212198b5595b9fb4b890de1f125d9da9cf985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c02bb5e79ed5bbe7a3aa4d87f63212198b5595b9fb4b890de1f125d9da9cf985", kill_on_drop: false }`
[INFO] [stdout] c02bb5e79ed5bbe7a3aa4d87f63212198b5595b9fb4b890de1f125d9da9cf985
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d267485882e1d047df227a148d4828f006403c7c39e4ec8ee78ae2d6322fc378
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d267485882e1d047df227a148d4828f006403c7c39e4ec8ee78ae2d6322fc378", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.20
[INFO] [stderr]    Compiling gcc v0.3.43
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]     Checking rustc-demangle v0.1.3
[INFO] [stderr]     Checking cfg-if v0.1.0
[INFO] [stderr]     Checking same-file v0.1.3
[INFO] [stderr]     Checking vec_map v0.6.0
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.4.0
[INFO] [stderr]     Checking maplit v0.1.4
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking walkdir v1.0.7
[INFO] [stderr]     Checking thread-id v3.0.0
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking term_size v0.2.2
[INFO] [stderr]     Checking thread_local v0.3.2
[INFO] [stderr]     Checking clap v2.20.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.7
[INFO] [stderr]     Checking aho-corasick v0.6.2
[INFO] [stderr]     Checking regex v0.2.1
[INFO] [stderr]     Checking error-chain v0.9.0
[INFO] [stderr]     Checking replace v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/types.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | /// Library Error and Result types
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/main.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/types.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | /// Library Error and Result types
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/types.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / error_chain! {
[INFO] [stdout] 14 | |     types {
[INFO] [stdout] 15 | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stdout] 16 | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |     }
[INFO] [stdout] 38 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/types.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / error_chain! {
[INFO] [stdout] 14 | |     types {
[INFO] [stdout] 15 | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stdout] 16 | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |     }
[INFO] [stdout] 38 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/types.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / error_chain! {
[INFO] [stdout] 14 | |     types {
[INFO] [stdout] 15 | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stdout] 16 | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |     }
[INFO] [stdout] 38 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/types.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / error_chain! {
[INFO] [stdout] 14 | |     types {
[INFO] [stdout] 15 | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stdout] 16 | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |     }
[INFO] [stdout] 38 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/types.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / error_chain! {
[INFO] [stdout] 14 | |     types {
[INFO] [stdout] 15 | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stdout] 16 | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |     }
[INFO] [stdout] 38 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]   --> src/replace.rs:86:32
[INFO] [stdout]    |
[INFO] [stdout] 86 |             &Groups::Named(ref g) => panic!(),
[INFO] [stdout]    |                                ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/types.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / error_chain! {
[INFO] [stdout] 14 | |     types {
[INFO] [stdout] 15 | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stdout] 16 | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |     }
[INFO] [stdout] 38 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `do_replace`
[INFO] [stdout]    --> src/replace.rs:106:4
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn do_replace(c: &Cmd, d: &[u8]) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]   --> src/replace.rs:86:32
[INFO] [stdout]    |
[INFO] [stdout] 86 |             &Groups::Named(ref g) => panic!(),
[INFO] [stdout]    |                                ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Named`
[INFO] [stdout]   --> src/types.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Named(NamedGroups<'a>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Named`
[INFO] [stdout]   --> src/types.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Named(NamedGroups<'a>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.73s
[INFO] running `Command { std: "docker" "inspect" "d267485882e1d047df227a148d4828f006403c7c39e4ec8ee78ae2d6322fc378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d267485882e1d047df227a148d4828f006403c7c39e4ec8ee78ae2d6322fc378", kill_on_drop: false }`
[INFO] [stdout] d267485882e1d047df227a148d4828f006403c7c39e4ec8ee78ae2d6322fc378