[INFO] fetching crate asciimusic 0.1.3...
[INFO] checking asciimusic-0.1.3 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate asciimusic 0.1.3 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate asciimusic 0.1.3 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate asciimusic 0.1.3
[INFO] finished tweaking crates.io crate asciimusic 0.1.3
[INFO] tweaked toml for crates.io crate asciimusic 0.1.3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate asciimusic 0.1.3 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a885b8bc2a21a7381a81b1b9616fa33cdeb361aae68940565d0ac50cd9b057c
[INFO] running `Command { std: "docker" "start" "-a" "4a885b8bc2a21a7381a81b1b9616fa33cdeb361aae68940565d0ac50cd9b057c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a885b8bc2a21a7381a81b1b9616fa33cdeb361aae68940565d0ac50cd9b057c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a885b8bc2a21a7381a81b1b9616fa33cdeb361aae68940565d0ac50cd9b057c", kill_on_drop: false }`
[INFO] [stdout] 4a885b8bc2a21a7381a81b1b9616fa33cdeb361aae68940565d0ac50cd9b057c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42ee0e54c5b336caccd955f58e549b9ce6f4a42824d73302ea2153c78d8cac49
[INFO] running `Command { std: "docker" "start" "-a" "42ee0e54c5b336caccd955f58e549b9ce6f4a42824d73302ea2153c78d8cac49", kill_on_drop: false }`
[INFO] [stderr]     Checking asciimusic v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/error.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/error.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/song.rs:105:36
[INFO] [stdout]     |
[INFO] [stdout] 105 |             let instrument = match Instrument::from_id(instrument_id) {
[INFO] [stdout]     |                                    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 105 |             let instrument = match <dyn Instrument>::from_id(instrument_id) {
[INFO] [stdout]     |                                    ++++           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/song.rs:105:36
[INFO] [stdout]     |
[INFO] [stdout] 105 |             let instrument = match Instrument::from_id(instrument_id) {
[INFO] [stdout]     |                                    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 105 |             let instrument = match <dyn Instrument>::from_id(instrument_id) {
[INFO] [stdout]     |                                    ++++           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_base32` is never used
[INFO] [stdout]   --> src/base32.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub trait ToBase32: Sized + fmt::Debug {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] 39 |     fn to_base32(self) -> Result<char, error::ToBase32Error<Self>>;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_base32` is never used
[INFO] [stdout]   --> src/base32.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub trait ToBase32: Sized + fmt::Debug {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] 39 |     fn to_base32(self) -> Result<char, error::ToBase32Error<Self>>;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/voice.rs:87:32
[INFO] [stdout]    |
[INFO] [stdout] 87 |                 self.instrument.borrow().sample(self.ramp / self.sample_rate)
[INFO] [stdout]    |                                ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `dyn Instrument` does not implement `Borrow`, so calling `borrow` on `&dyn Instrument` 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 `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/voice.rs:87:32
[INFO] [stdout]    |
[INFO] [stdout] 87 |                 self.instrument.borrow().sample(self.ramp / self.sample_rate)
[INFO] [stdout]    |                                ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `dyn Instrument` does not implement `Borrow`, so calling `borrow` on `&dyn Instrument` 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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "42ee0e54c5b336caccd955f58e549b9ce6f4a42824d73302ea2153c78d8cac49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42ee0e54c5b336caccd955f58e549b9ce6f4a42824d73302ea2153c78d8cac49", kill_on_drop: false }`
[INFO] [stdout] 42ee0e54c5b336caccd955f58e549b9ce6f4a42824d73302ea2153c78d8cac49
