[INFO] cloning repository https://github.com/Taywee/imagemusic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Taywee/imagemusic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTaywee%2Fimagemusic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTaywee%2Fimagemusic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 727f564a37024a81a7eede4acb81d98c404f1418
[INFO] checking Taywee/imagemusic/727f564a37024a81a7eede4acb81d98c404f1418 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTaywee%2Fimagemusic" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Taywee/imagemusic on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Taywee/imagemusic
[INFO] finished tweaking git repo https://github.com/Taywee/imagemusic
[INFO] tweaked toml for git repo https://github.com/Taywee/imagemusic written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Taywee/imagemusic 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stderr]     Checking imagemusic v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]   --> src/lib.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         Box::from_raw(song);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let _ = Box::from_raw(song);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/musicxml.rs:350:22
[INFO] [stdout]     |
[INFO] [stdout] 350 |     for part_list in root.children().find(|e| e.name() == "part-list") {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 350 |     while let Some(part_list) = root.children().find(|e| e.name() == "part-list") {
[INFO] [stdout]     |     ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 350 |     if let Some(part_list) = root.children().find(|e| e.name() == "part-list") {
[INFO] [stdout]     |     ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/musicxml.rs:352:23
[INFO] [stdout]     |
[INFO] [stdout] 352 |             for id in score_part.attr("id") {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 352 |             while let Some(id) = score_part.attr("id") {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~  ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 352 |             if let Some(id) = score_part.attr("id") {
[INFO] [stdout]     |             ~~~~~~~~~~~~  ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/musicxml.rs:353:29
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 for name in score_part.children().find(|e| e.name() == "part-name") {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 while let Some(name) = score_part.children().find(|e| e.name() == "part-name") {
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~    ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 if let Some(name) = score_part.children().find(|e| e.name() == "part-name") {
[INFO] [stdout]     |                 ~~~~~~~~~~~~    ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]  --> src/bin/render.rs:9:28
[INFO] [stdout]   |
[INFO] [stdout] 9 |         panic!("imagemusic {input song} {output pcm}");
[INFO] [stdout]   |                            ^          ^ ^          ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]   = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]   |
[INFO] [stdout] 9 |         panic!("{}", "imagemusic {input song} {output pcm}");
[INFO] [stdout]   |                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]  --> src/bin/decode.rs:9:28
[INFO] [stdout]   |
[INFO] [stdout] 9 |         panic!("imagemusic {input song}");
[INFO] [stdout]   |                            ^          ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]   = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]   |
[INFO] [stdout] 9 |         panic!("{}", "imagemusic {input song}");
[INFO] [stdout]   |                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/bin/from-musicxml.rs:10:28
[INFO] [stdout]    |
[INFO] [stdout] 10 |         panic!("imagemusic {input song}");
[INFO] [stdout]    |                            ^          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 10 |         panic!("{}", "imagemusic {input song}");
[INFO] [stdout]    |                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/bin/encode.rs:12:28
[INFO] [stdout]    |
[INFO] [stdout] 12 |         panic!("imagemusic {input song} {input image} {output image}");
[INFO] [stdout]    |                            ^          ^ ^           ^ ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 12 |         panic!("{}", "imagemusic {input song} {input image} {output image}");
[INFO] [stdout]    |                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]   --> src/lib.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         Box::from_raw(song);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let _ = Box::from_raw(song);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/musicxml.rs:350:22
[INFO] [stdout]     |
[INFO] [stdout] 350 |     for part_list in root.children().find(|e| e.name() == "part-list") {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 350 |     while let Some(part_list) = root.children().find(|e| e.name() == "part-list") {
[INFO] [stdout]     |     ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 350 |     if let Some(part_list) = root.children().find(|e| e.name() == "part-list") {
[INFO] [stdout]     |     ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/musicxml.rs:352:23
[INFO] [stdout]     |
[INFO] [stdout] 352 |             for id in score_part.attr("id") {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 352 |             while let Some(id) = score_part.attr("id") {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~  ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 352 |             if let Some(id) = score_part.attr("id") {
[INFO] [stdout]     |             ~~~~~~~~~~~~  ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/musicxml.rs:353:29
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 for name in score_part.children().find(|e| e.name() == "part-name") {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 while let Some(name) = score_part.children().find(|e| e.name() == "part-name") {
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~    ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 if let Some(name) = score_part.children().find(|e| e.name() == "part-name") {
[INFO] [stdout]     |                 ~~~~~~~~~~~~    ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/bin/from-musicxml.rs:10:28
[INFO] [stdout]    |
[INFO] [stdout] 10 |         panic!("imagemusic {input song}");
[INFO] [stdout]    |                            ^          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 10 |         panic!("{}", "imagemusic {input song}");
[INFO] [stdout]    |                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]  --> src/bin/decode.rs:9:28
[INFO] [stdout]   |
[INFO] [stdout] 9 |         panic!("imagemusic {input song}");
[INFO] [stdout]   |                            ^          ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]   = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]   |
[INFO] [stdout] 9 |         panic!("{}", "imagemusic {input song}");
[INFO] [stdout]   |                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]  --> src/bin/render.rs:9:28
[INFO] [stdout]   |
[INFO] [stdout] 9 |         panic!("imagemusic {input song} {output pcm}");
[INFO] [stdout]   |                            ^          ^ ^          ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]   = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]   |
[INFO] [stdout] 9 |         panic!("{}", "imagemusic {input song} {output pcm}");
[INFO] [stdout]   |                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/bin/encode.rs:12:28
[INFO] [stdout]    |
[INFO] [stdout] 12 |         panic!("imagemusic {input song} {input image} {output image}");
[INFO] [stdout]    |                            ^          ^ ^           ^ ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 12 |         panic!("{}", "imagemusic {input song} {input image} {output image}");
[INFO] [stdout]    |                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]   --> src/lib.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         Box::from_raw(song);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let _ = Box::from_raw(song);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/musicxml.rs:350:22
[INFO] [stdout]     |
[INFO] [stdout] 350 |     for part_list in root.children().find(|e| e.name() == "part-list") {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 350 |     while let Some(part_list) = root.children().find(|e| e.name() == "part-list") {
[INFO] [stdout]     |     ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 350 |     if let Some(part_list) = root.children().find(|e| e.name() == "part-list") {
[INFO] [stdout]     |     ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/musicxml.rs:352:23
[INFO] [stdout]     |
[INFO] [stdout] 352 |             for id in score_part.attr("id") {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 352 |             while let Some(id) = score_part.attr("id") {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~  ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 352 |             if let Some(id) = score_part.attr("id") {
[INFO] [stdout]     |             ~~~~~~~~~~~~  ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/musicxml.rs:353:29
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 for name in score_part.children().find(|e| e.name() == "part-name") {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 while let Some(name) = score_part.children().find(|e| e.name() == "part-name") {
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~    ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 if let Some(name) = score_part.children().find(|e| e.name() == "part-name") {
[INFO] [stdout]     |                 ~~~~~~~~~~~~    ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning 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 40.39s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.3, quick-xml v0.17.2, wasm-bindgen v0.2.63
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "64216120a549e6d06086ce27a271cf1109eba54fd34482bb88e8fdeecc754a34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64216120a549e6d06086ce27a271cf1109eba54fd34482bb88e8fdeecc754a34", kill_on_drop: false }`
[INFO] [stdout] 64216120a549e6d06086ce27a271cf1109eba54fd34482bb88e8fdeecc754a34