[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#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvitiral%2Freplace.rs" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/vitiral/replace.rs on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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-2-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded same-file v0.1.3 [INFO] [stderr] Downloaded thread-id v3.0.0 [INFO] [stderr] Downloaded memchr v1.0.1 [INFO] [stderr] Downloaded thread_local v0.3.2 [INFO] [stderr] Downloaded walkdir v1.0.7 [INFO] [stderr] Downloaded cfg-if v0.1.0 [INFO] [stderr] Downloaded maplit v0.1.4 [INFO] [stderr] Downloaded libc v0.2.20 [INFO] [stderr] Downloaded ansi_term v0.9.0 [INFO] [stderr] Downloaded term_size v0.2.2 [INFO] [stderr] Downloaded unicode-segmentation v1.1.0 [INFO] [stderr] Downloaded unicode-width v0.1.4 [INFO] [stderr] Downloaded vec_map v0.6.0 [INFO] [stderr] Downloaded clap v2.20.3 [INFO] [stderr] Downloaded backtrace-sys v0.1.7 [INFO] [stderr] Downloaded gcc v0.3.43 [INFO] [stderr] Downloaded dbghelp-sys v0.2.0 [INFO] [stderr] Downloaded rustc-demangle v0.1.3 [INFO] [stderr] Downloaded backtrace v0.3.0 [INFO] [stderr] Downloaded error-chain v0.9.0 [INFO] [stderr] Downloaded aho-corasick v0.6.2 [INFO] [stderr] Downloaded regex-syntax v0.4.0 [INFO] [stderr] Downloaded regex v0.2.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ae2a9c831c4ae9ac4c937467557897473a002fcd22c99c8d19b5c4261d836f33 [INFO] running `Command { std: "docker" "start" "-a" "ae2a9c831c4ae9ac4c937467557897473a002fcd22c99c8d19b5c4261d836f33", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ae2a9c831c4ae9ac4c937467557897473a002fcd22c99c8d19b5c4261d836f33", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ae2a9c831c4ae9ac4c937467557897473a002fcd22c99c8d19b5c4261d836f33", kill_on_drop: false }` [INFO] [stdout] ae2a9c831c4ae9ac4c937467557897473a002fcd22c99c8d19b5c4261d836f33 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1d4fe22d1f9cb3538a5c1ae4246a7e9d21cd5e3aaa0bdacf0ba40a1639e7e7dd [INFO] running `Command { std: "docker" "start" "-a" "1d4fe22d1f9cb3538a5c1ae4246a7e9d21cd5e3aaa0bdacf0ba40a1639e7e7dd", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.20 [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Compiling gcc v0.3.43 [INFO] [stderr] Checking winapi v0.2.8 [INFO] [stderr] Compiling backtrace v0.3.0 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking rustc-demangle v0.1.3 [INFO] [stderr] Checking cfg-if v0.1.0 [INFO] [stderr] Checking bitflags v0.7.0 [INFO] [stderr] Checking unreachable v0.1.1 [INFO] [stderr] Compiling dbghelp-sys v0.2.0 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Checking utf8-ranges v1.0.0 [INFO] [stderr] Checking ansi_term v0.9.0 [INFO] [stderr] Checking regex-syntax v0.4.0 [INFO] [stderr] Checking unicode-width v0.1.4 [INFO] [stderr] Checking memchr v1.0.1 [INFO] [stderr] Checking thread-id v3.0.0 [INFO] [stderr] Checking term_size v0.2.2 [INFO] [stderr] Checking thread_local v0.3.2 [INFO] [stderr] Checking strsim v0.6.0 [INFO] [stderr] Checking aho-corasick v0.6.2 [INFO] [stderr] Checking same-file v0.1.3 [INFO] [stderr] Checking unicode-segmentation v1.1.0 [INFO] [stderr] Checking vec_map v0.6.0 [INFO] [stderr] Checking maplit v0.1.4 [INFO] [stderr] Checking walkdir v1.0.7 [INFO] [stderr] Compiling backtrace-sys v0.1.7 [INFO] [stderr] Checking clap v2.20.3 [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: the item `Iterator` is imported redundantly [INFO] [stdout] --> src/cmd.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::iter::Iterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Iterator` is already defined here [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] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stdout] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `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 the macro `error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info) [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: the item `Iterator` is imported redundantly [INFO] [stdout] --> src/cmd.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::iter::Iterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Iterator` is already defined here [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] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stdout] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `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 the macro `error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `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 the macro `error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `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 the macro `error_chain_processed` which comes from the expansion of the macro `error_chain` (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: 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 `Named` is never constructed [INFO] [stdout] --> src/types.rs:51:5 [INFO] [stdout] | [INFO] [stdout] 50 | pub enum Groups<'a> { [INFO] [stdout] | ------ variant in this enum [INFO] [stdout] 51 | Named(NamedGroups<'a>), [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Groups` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `do_replace` is never used [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: variant `Named` is never constructed [INFO] [stdout] --> src/types.rs:51:5 [INFO] [stdout] | [INFO] [stdout] 50 | pub enum Groups<'a> { [INFO] [stdout] | ------ variant in this enum [INFO] [stdout] 51 | Named(NamedGroups<'a>), [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Groups` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/replace.rs:117:34 [INFO] [stdout] | [INFO] [stdout] 117 | let cmd = Cmd::simple(pat.clone(), groups.clone()); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/replace.rs:128:34 [INFO] [stdout] | [INFO] [stdout] 128 | let cmd = Cmd::simple(pat.clone(), groups); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/replace.rs:138:34 [INFO] [stdout] | [INFO] [stdout] 138 | let cmd = Cmd::simple(pat.clone(), groups); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/replace.rs:148:34 [INFO] [stdout] | [INFO] [stdout] 148 | let cmd = Cmd::simple(pat.clone(), groups); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.98s [INFO] running `Command { std: "docker" "inspect" "1d4fe22d1f9cb3538a5c1ae4246a7e9d21cd5e3aaa0bdacf0ba40a1639e7e7dd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1d4fe22d1f9cb3538a5c1ae4246a7e9d21cd5e3aaa0bdacf0ba40a1639e7e7dd", kill_on_drop: false }` [INFO] [stdout] 1d4fe22d1f9cb3538a5c1ae4246a7e9d21cd5e3aaa0bdacf0ba40a1639e7e7dd