[INFO] fetching crate rmus 0.1.3...
[INFO] checking rmus-0.1.3 against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] extracting crate rmus 0.1.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate rmus 0.1.3 on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rmus 0.1.3
[INFO] finished tweaking crates.io crate rmus 0.1.3
[INFO] tweaked toml for crates.io crate rmus 0.1.3 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e31efd6db552ab26a6acc66db30aa869f98d2ff9259d5d0290951609614dc9df
[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" "e31efd6db552ab26a6acc66db30aa869f98d2ff9259d5d0290951609614dc9df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e31efd6db552ab26a6acc66db30aa869f98d2ff9259d5d0290951609614dc9df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e31efd6db552ab26a6acc66db30aa869f98d2ff9259d5d0290951609614dc9df", kill_on_drop: false }`
[INFO] [stdout] e31efd6db552ab26a6acc66db30aa869f98d2ff9259d5d0290951609614dc9df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87e86c5e3b21b3bb502dda9f06bce546882a1dd6a2659ad6eef7fbd7aa7259fa
[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" "87e86c5e3b21b3bb502dda9f06bce546882a1dd6a2659ad6eef7fbd7aa7259fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking parking v1.0.6
[INFO] [stderr]    Compiling cpal v0.11.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking async-task v3.0.0
[INFO] [stderr]     Checking claxon v0.4.3
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[INFO] [stderr]     Checking ogg v0.8.0
[INFO] [stderr]     Checking ogg v0.7.1
[INFO] [stderr]     Checking slice-deque v0.3.0
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking lewton v0.10.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking futures-lite v0.1.11
[INFO] [stderr]     Checking minimp3 v0.3.5
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking blocking v0.4.7
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking smol v0.1.18
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking rmus v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `SeekFrom`, `prelude::*`
[INFO] [stdout]  --> src/decoders/mp3.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{BufReader, prelude::*, SeekFrom},
[INFO] [stdout]   |                     ^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/decoders/flac.rs:51:53
[INFO] [stdout]    |
[INFO] [stdout] 51 |                     self.buf.push_back(Sample::from((block.sample(channel_pos as u32, sample_pos))));
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SeekFrom`, `prelude::*`
[INFO] [stdout]  --> src/decoders/mp3.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{BufReader, prelude::*, SeekFrom},
[INFO] [stdout]   |                     ^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/decoders/flac.rs:51:53
[INFO] [stdout]    |
[INFO] [stdout] 51 |                     self.buf.push_back(Sample::from((block.sample(channel_pos as u32, sample_pos))));
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]   --> src/decoders/flac.rs:74:21
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn goto (&self, pos: u64) {
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/decoders/flac.rs:48:34
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 Err(v) => panic!(v),
[INFO] [stdout]    |                                  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 Err(v) => panic!("{}", v),
[INFO] [stdout]    |                                  ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 Err(v) => std::panic::panic_any(v),
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]   --> src/decoders/flac.rs:74:21
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn goto (&self, pos: u64) {
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/decoders/flac.rs:48:34
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 Err(v) => panic!(v),
[INFO] [stdout]    |                                  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 Err(v) => panic!("{}", v),
[INFO] [stdout]    |                                  ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 Err(v) => std::panic::panic_any(v),
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.26s
[INFO] running `Command { std: "docker" "inspect" "87e86c5e3b21b3bb502dda9f06bce546882a1dd6a2659ad6eef7fbd7aa7259fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87e86c5e3b21b3bb502dda9f06bce546882a1dd6a2659ad6eef7fbd7aa7259fa", kill_on_drop: false }`
[INFO] [stdout] 87e86c5e3b21b3bb502dda9f06bce546882a1dd6a2659ad6eef7fbd7aa7259fa