[INFO] fetching crate mpdsh 0.1.0... [INFO] checking mpdsh-0.1.0 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3 [INFO] extracting crate mpdsh 0.1.0 into /workspace/builds/worker-3-tc1/source [INFO] started tweaking crates.io crate mpdsh 0.1.0 [INFO] finished tweaking crates.io crate mpdsh 0.1.0 [INFO] tweaked toml for crates.io crate mpdsh 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate mpdsh 0.1.0 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate mpdsh 0.1.0 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded proc-macro2 v1.0.18 [INFO] [stderr] Downloaded unicode-xid v0.2.0 [INFO] [stderr] Downloaded rustyline-derive v0.3.1 [INFO] [stderr] Downloaded wildmatch v1.0.10 [INFO] [stderr] Downloaded shell-words v1.0.0 [INFO] [stderr] Downloaded utf8parse v0.2.0 [INFO] [stderr] Downloaded arrayref v0.3.6 [INFO] [stderr] Downloaded getopts v0.2.21 [INFO] [stderr] Downloaded thread_local v1.0.1 [INFO] [stderr] Downloaded dirs-next v1.0.1 [INFO] [stderr] Downloaded dirs-sys-next v0.1.0 [INFO] [stderr] Downloaded void v1.0.2 [INFO] [stderr] Downloaded constant_time_eq v0.1.5 [INFO] [stderr] Downloaded wasi v0.9.0+wasi-snapshot-preview1 [INFO] [stderr] Downloaded getrandom v0.1.14 [INFO] [stderr] Downloaded base64 v0.11.0 [INFO] [stderr] Downloaded cc v1.0.54 [INFO] [stderr] Downloaded arrayvec v0.5.1 [INFO] [stderr] Downloaded blake2b_simd v0.5.10 [INFO] [stderr] Downloaded aho-corasick v0.7.10 [INFO] [stderr] Downloaded syn v1.0.31 [INFO] [stderr] Downloaded unicode-segmentation v1.6.0 [INFO] [stderr] Downloaded unicode-width v0.1.7 [INFO] [stderr] Downloaded rustyline v6.2.0 [INFO] [stderr] Downloaded redox_syscall v0.1.56 [INFO] [stderr] Downloaded nix v0.17.0 [INFO] [stderr] Downloaded rust-argon2 v0.7.0 [INFO] [stderr] Downloaded redox_users v0.3.4 [INFO] [stderr] Downloaded log v0.4.8 [INFO] [stderr] Downloaded autocfg v1.0.0 [INFO] [stderr] Downloaded libc v0.2.71 [INFO] [stderr] Downloaded winapi v0.3.8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 34109f790f48e77c8cba617376b1777d6db2d9e4f2e106290fda178d375234c9 [INFO] running `Command { std: "docker" "start" "-a" "34109f790f48e77c8cba617376b1777d6db2d9e4f2e106290fda178d375234c9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "34109f790f48e77c8cba617376b1777d6db2d9e4f2e106290fda178d375234c9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "34109f790f48e77c8cba617376b1777d6db2d9e4f2e106290fda178d375234c9", kill_on_drop: false }` [INFO] [stdout] 34109f790f48e77c8cba617376b1777d6db2d9e4f2e106290fda178d375234c9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a9c820aa1b514d377c22e40c15d435ac34b6052d41d0906703ba2897497b970a [INFO] running `Command { std: "docker" "start" "-a" "a9c820aa1b514d377c22e40c15d435ac34b6052d41d0906703ba2897497b970a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.71 [INFO] [stderr] Compiling proc-macro2 v1.0.18 [INFO] [stderr] Compiling syn v1.0.31 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking utf8parse v0.2.0 [INFO] [stderr] Checking unicode-segmentation v1.6.0 [INFO] [stderr] Checking shell-words v1.0.0 [INFO] [stderr] Checking wildmatch v1.0.10 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking dirs-sys-next v0.1.0 [INFO] [stderr] Checking nix v0.17.0 [INFO] [stderr] Checking dirs-next v1.0.1 [INFO] [stderr] Compiling rustyline-derive v0.3.1 [INFO] [stderr] Checking rustyline v6.2.0 [INFO] [stderr] Checking mpdsh v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `arg_prog` [INFO] [stdout] --> src/main.rs:1329:9 [INFO] [stdout] | [INFO] [stdout] 1329 | let arg_prog = args[0].clone(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arg_prog` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `bin` is never read [INFO] [stdout] --> src/main.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 35 | struct ExecOk [INFO] [stdout] | ------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 38 | , bin: Option> [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `cmd_index` and `cur_cmd` are never read [INFO] [stdout] --> src/main.rs:44:5 [INFO] [stdout] | [INFO] [stdout] 41 | struct ExecErr [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 44 | , cmd_index: i32 [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 45 | , cur_cmd: Option [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `worker_handle` and `version` are never read [INFO] [stdout] --> src/main.rs:81:5 [INFO] [stdout] | [INFO] [stdout] 79 | struct Mpdsh [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 80 | { [INFO] [stdout] 81 | worker_handle: thread::JoinHandle<()> [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 84 | , version: String [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `hint_playlist` is never used [INFO] [stdout] --> src/main.rs:646:8 [INFO] [stdout] | [INFO] [stdout] 90 | impl Mpdsh [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 646 | fn hint_playlist( &mut self ) -> Vec [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `PKG_AUTHORS` is never used [INFO] [stdout] --> src/main.rs:1323:7 [INFO] [stdout] | [INFO] [stdout] 1323 | const PKG_AUTHORS: &'static str = env!("CARGO_PKG_AUTHORS"); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `arg_prog` [INFO] [stdout] --> src/main.rs:1329:9 [INFO] [stdout] | [INFO] [stdout] 1329 | let arg_prog = args[0].clone(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arg_prog` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `bin` is never read [INFO] [stdout] --> src/main.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 35 | struct ExecOk [INFO] [stdout] | ------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 38 | , bin: Option> [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `cmd_index` and `cur_cmd` are never read [INFO] [stdout] --> src/main.rs:44:5 [INFO] [stdout] | [INFO] [stdout] 41 | struct ExecErr [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 44 | , cmd_index: i32 [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 45 | , cur_cmd: Option [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `worker_handle` and `version` are never read [INFO] [stdout] --> src/main.rs:81:5 [INFO] [stdout] | [INFO] [stdout] 79 | struct Mpdsh [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 80 | { [INFO] [stdout] 81 | worker_handle: thread::JoinHandle<()> [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 84 | , version: String [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `hint_playlist` is never used [INFO] [stdout] --> src/main.rs:646:8 [INFO] [stdout] | [INFO] [stdout] 90 | impl Mpdsh [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 646 | fn hint_playlist( &mut self ) -> Vec [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `PKG_AUTHORS` is never used [INFO] [stdout] --> src/main.rs:1323:7 [INFO] [stdout] | [INFO] [stdout] 1323 | const PKG_AUTHORS: &'static str = env!("CARGO_PKG_AUTHORS"); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:176:5 [INFO] [stdout] | [INFO] [stdout] 176 | / wtx.send( [INFO] [stdout] 177 | | Ok( [INFO] [stdout] 178 | | ExecOk [INFO] [stdout] ... | [INFO] [stdout] 184 | | ); [INFO] [stdout] | |_________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 176 | let _ = wtx.send( [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:176:5 [INFO] [stdout] | [INFO] [stdout] 176 | / wtx.send( [INFO] [stdout] 177 | | Ok( [INFO] [stdout] 178 | | ExecOk [INFO] [stdout] ... | [INFO] [stdout] 184 | | ); [INFO] [stdout] | |_________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 176 | let _ = wtx.send( [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:310:17 [INFO] [stdout] | [INFO] [stdout] 310 | wtx.send( send ); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 310 | let _ = wtx.send( send ); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:310:17 [INFO] [stdout] | [INFO] [stdout] 310 | wtx.send( send ); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 310 | let _ = wtx.send( send ); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/main.rs:1277:16 [INFO] [stdout] | [INFO] [stdout] 1277 | fn borrow( &self ) -> Ref< Mpdsh > [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 1277 | fn borrow( &self ) -> Ref<'_, Mpdsh > [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/main.rs:1282:20 [INFO] [stdout] | [INFO] [stdout] 1282 | fn borrow_mut( &self ) -> RefMut< Mpdsh > [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 1282 | fn borrow_mut( &self ) -> RefMut<'_, Mpdsh > [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/main.rs:1277:16 [INFO] [stdout] | [INFO] [stdout] 1277 | fn borrow( &self ) -> Ref< Mpdsh > [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 1277 | fn borrow( &self ) -> Ref<'_, Mpdsh > [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/main.rs:1282:20 [INFO] [stdout] | [INFO] [stdout] 1282 | fn borrow_mut( &self ) -> RefMut< Mpdsh > [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 1282 | fn borrow_mut( &self ) -> RefMut<'_, Mpdsh > [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.76s [INFO] running `Command { std: "docker" "inspect" "a9c820aa1b514d377c22e40c15d435ac34b6052d41d0906703ba2897497b970a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a9c820aa1b514d377c22e40c15d435ac34b6052d41d0906703ba2897497b970a", kill_on_drop: false }` [INFO] [stdout] a9c820aa1b514d377c22e40c15d435ac34b6052d41d0906703ba2897497b970a