[INFO] fetching crate amy 0.10.0... [INFO] checking amy-0.10.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate amy 0.10.0 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate amy 0.10.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate amy 0.10.0 [INFO] finished tweaking crates.io crate amy 0.10.0 [INFO] tweaked toml for crates.io crate amy 0.10.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 11 packages [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding bytes v0.4.12 (latest: v1.6.0) [INFO] [stderr] Adding cfg-if v0.1.10 (latest: v1.0.0) [INFO] [stderr] Adding nix v0.10.0 (latest: v0.28.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded assert_matches v1.5.0 [INFO] [stderr] Downloaded nix v0.10.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ade0bd97d1959c45e5162e79c95ed16c1e16ac982f3c77e9646dd3f2cf2e8ce0 [INFO] running `Command { std: "docker" "start" "-a" "ade0bd97d1959c45e5162e79c95ed16c1e16ac982f3c77e9646dd3f2cf2e8ce0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ade0bd97d1959c45e5162e79c95ed16c1e16ac982f3c77e9646dd3f2cf2e8ce0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ade0bd97d1959c45e5162e79c95ed16c1e16ac982f3c77e9646dd3f2cf2e8ce0", kill_on_drop: false }` [INFO] [stdout] ade0bd97d1959c45e5162e79c95ed16c1e16ac982f3c77e9646dd3f2cf2e8ce0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2adaa161a52f2a70e00c7ce9e00c5128916124544dc14c5fa40b1b0a6a042195 [INFO] running `Command { std: "docker" "start" "-a" "2adaa161a52f2a70e00c7ce9e00c5128916124544dc14c5fa40b1b0a6a042195", kill_on_drop: false }` [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Compiling nix v0.10.0 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking assert_matches v1.5.0 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking amy v0.10.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/line_reader.rs:85:26 [INFO] [stdout] | [INFO] [stdout] 85 | let bytes_read = try!(reader.read(&mut self.buf.vec[self.buf.write_loc..])); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/frame_reader.rs:100:26 [INFO] [stdout] | [INFO] [stdout] 100 | let bytes_read = try!(reader.read(&mut self.header[self.bytes_read..])); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/frame_reader.rs:113:26 [INFO] [stdout] | [INFO] [stdout] 113 | let bytes_read = try!(reader.read(&mut self.current[self.bytes_read..])); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `libc` is imported redundantly [INFO] [stdout] --> src/timer.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use libc; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | extern crate libc; [INFO] [stdout] | ------------------ the item `libc` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `libc` is imported redundantly [INFO] [stdout] --> src/user_event.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use libc; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | extern crate libc; [INFO] [stdout] | ------------------ the item `libc` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/channel.rs:75:9 [INFO] [stdout] | [INFO] [stdout] 75 | try!(self.tx.send(msg)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/channel.rs:78:13 [INFO] [stdout] | [INFO] [stdout] 78 | try!(self.user_event.trigger()); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/channel.rs:98:9 [INFO] [stdout] | [INFO] [stdout] 98 | try!(self.tx.send(msg)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/channel.rs:101:13 [INFO] [stdout] | [INFO] [stdout] 101 | try!(self.user_event.trigger()); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/channel.rs:107:9 [INFO] [stdout] | [INFO] [stdout] 107 | try!(self.tx.try_send(msg)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/channel.rs:110:13 [INFO] [stdout] | [INFO] [stdout] 110 | try!(self.user_event.trigger()); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/channel.rs:131:13 [INFO] [stdout] | [INFO] [stdout] 131 | try!(self.user_event.clear()); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/channel.rs:141:13 [INFO] [stdout] | [INFO] [stdout] 141 | try!(self.user_event.trigger()); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `EpollFlags` is imported redundantly [INFO] [stdout] --> src/epoll.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 14 | use nix::sys::epoll::*; [INFO] [stdout] | ------------------ the item `EpollFlags` is already imported here [INFO] [stdout] 15 | use nix::sys::epoll::EpollFlags; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `libc` is imported redundantly [INFO] [stdout] --> src/epoll.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | use libc; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | extern crate libc; [INFO] [stdout] | ------------------ the item `libc` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `libc` is imported redundantly [INFO] [stdout] --> src/timerfd.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | use libc::{self, c_int, CLOCK_MONOTONIC, O_NONBLOCK, O_CLOEXEC, timespec, time_t}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | extern crate libc; [INFO] [stdout] | ------------------ the item `libc` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/timerfd.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 44 | try!(arm_timer(fd, timeout_in_ms, recurring)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/line_reader.rs:85:26 [INFO] [stdout] | [INFO] [stdout] 85 | let bytes_read = try!(reader.read(&mut self.buf.vec[self.buf.write_loc..])); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/frame_reader.rs:100:26 [INFO] [stdout] | [INFO] [stdout] 100 | let bytes_read = try!(reader.read(&mut self.header[self.bytes_read..])); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/frame_reader.rs:113:26 [INFO] [stdout] | [INFO] [stdout] 113 | let bytes_read = try!(reader.read(&mut self.current[self.bytes_read..])); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `libc` is imported redundantly [INFO] [stdout] --> src/timer.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use libc; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | extern crate libc; [INFO] [stdout] | ------------------ the item `libc` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `libc` is imported redundantly [INFO] [stdout] --> src/user_event.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use libc; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | extern crate libc; [INFO] [stdout] | ------------------ the item `libc` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/channel.rs:75:9 [INFO] [stdout] | [INFO] [stdout] 75 | try!(self.tx.send(msg)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/channel.rs:78:13 [INFO] [stdout] | [INFO] [stdout] 78 | try!(self.user_event.trigger()); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/channel.rs:98:9 [INFO] [stdout] | [INFO] [stdout] 98 | try!(self.tx.send(msg)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/channel.rs:101:13 [INFO] [stdout] | [INFO] [stdout] 101 | try!(self.user_event.trigger()); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/channel.rs:107:9 [INFO] [stdout] | [INFO] [stdout] 107 | try!(self.tx.try_send(msg)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/channel.rs:110:13 [INFO] [stdout] | [INFO] [stdout] 110 | try!(self.user_event.trigger()); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/channel.rs:131:13 [INFO] [stdout] | [INFO] [stdout] 131 | try!(self.user_event.clear()); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/channel.rs:141:13 [INFO] [stdout] | [INFO] [stdout] 141 | try!(self.user_event.trigger()); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `EpollFlags` is imported redundantly [INFO] [stdout] --> src/epoll.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 14 | use nix::sys::epoll::*; [INFO] [stdout] | ------------------ the item `EpollFlags` is already imported here [INFO] [stdout] 15 | use nix::sys::epoll::EpollFlags; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `libc` is imported redundantly [INFO] [stdout] --> src/epoll.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | use libc; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | extern crate libc; [INFO] [stdout] | ------------------ the item `libc` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `libc` is imported redundantly [INFO] [stdout] --> src/timerfd.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | use libc::{self, c_int, CLOCK_MONOTONIC, O_NONBLOCK, O_CLOEXEC, timespec, time_t}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | extern crate libc; [INFO] [stdout] | ------------------ the item `libc` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/timerfd.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 44 | try!(arm_timer(fd, timeout_in_ms, recurring)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `max_frame_size` is never read [INFO] [stdout] --> src/frame_reader.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 44 | struct Frames { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 45 | max_frame_size: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Frames` 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: 18 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `max_frame_size` is never read [INFO] [stdout] --> src/frame_reader.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 44 | struct Frames { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 45 | max_frame_size: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Frames` 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: 18 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Result::::is_err` that must be used [INFO] [stdout] --> tests/channel_test.rs:168:5 [INFO] [stdout] | [INFO] [stdout] 168 | tx.try_send("b").is_err(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you intended to assert that this is err, consider `.unwrap_err()` instead [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 168 | let _ = tx.try_send("b").is_err(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.70s [INFO] running `Command { std: "docker" "inspect" "2adaa161a52f2a70e00c7ce9e00c5128916124544dc14c5fa40b1b0a6a042195", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2adaa161a52f2a70e00c7ce9e00c5128916124544dc14c5fa40b1b0a6a042195", kill_on_drop: false }` [INFO] [stdout] 2adaa161a52f2a70e00c7ce9e00c5128916124544dc14c5fa40b1b0a6a042195