[INFO] fetching crate karaorust 0.0.1...
[INFO] checking karaorust-0.0.1 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate karaorust 0.0.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate karaorust 0.0.1 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate karaorust 0.0.1
[INFO] finished tweaking crates.io crate karaorust 0.0.1
[INFO] tweaked toml for crates.io crate karaorust 0.0.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded combine v1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 69b64493de946f9cd07b934a63735e8b43475b3c07570aecfecf1ce147324a16
[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" "69b64493de946f9cd07b934a63735e8b43475b3c07570aecfecf1ce147324a16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69b64493de946f9cd07b934a63735e8b43475b3c07570aecfecf1ce147324a16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69b64493de946f9cd07b934a63735e8b43475b3c07570aecfecf1ce147324a16", kill_on_drop: false }`
[INFO] [stdout] 69b64493de946f9cd07b934a63735e8b43475b3c07570aecfecf1ce147324a16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 63466f38b4093fba91ee7bea29d7c7833f959ffce74d718bc05fe84366d75d1a
[INFO] running `Command { std: "docker" "start" "-a" "63466f38b4093fba91ee7bea29d7c7833f959ffce74d718bc05fe84366d75d1a", kill_on_drop: false }`
[INFO] [stderr]     Checking combine v1.3.0
[INFO] [stderr]     Checking karaorust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/parser/mod.rs:90:55
[INFO] [stdout]    |
[INFO] [stdout] 90 |             println!("Couldn't open {}: {}", display, Error::description(&err));
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/parser/mod.rs:99:55
[INFO] [stdout]    |
[INFO] [stdout] 99 |             println!("Couldn't read {}: {}", display, Error::description(&err));
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/parser/mod.rs:122:48
[INFO] [stdout]     |
[INFO] [stdout] 122 |             println!("Couldn't read file: {}", Error::description(&err));
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]   --> src/parser/mod.rs:34:50
[INFO] [stdout]    |
[INFO] [stdout] 34 |         .map(|(_, key, _, value, _)| (key, value.trim_right().to_string()))
[INFO] [stdout]    |                                                  ^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/parser/mod.rs:90:55
[INFO] [stdout]    |
[INFO] [stdout] 90 |             println!("Couldn't open {}: {}", display, Error::description(&err));
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/parser/mod.rs:99:55
[INFO] [stdout]    |
[INFO] [stdout] 99 |             println!("Couldn't read {}: {}", display, Error::description(&err));
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/parser/mod.rs:122:48
[INFO] [stdout]     |
[INFO] [stdout] 122 |             println!("Couldn't read file: {}", Error::description(&err));
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]   --> src/parser/mod.rs:60:28
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 text: text.trim_right().to_string()
[INFO] [stdout]    |                            ^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]   --> src/parser/mod.rs:34:50
[INFO] [stdout]    |
[INFO] [stdout] 34 |         .map(|(_, key, _, value, _)| (key, value.trim_right().to_string()))
[INFO] [stdout]    |                                                  ^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]   --> src/parser/mod.rs:60:28
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 text: text.trim_right().to_string()
[INFO] [stdout]    |                            ^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parse_karaoke_file`
[INFO] [stdout]  --> src/main.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | use karaorust::{ parse_karaoke_file };
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "63466f38b4093fba91ee7bea29d7c7833f959ffce74d718bc05fe84366d75d1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63466f38b4093fba91ee7bea29d7c7833f959ffce74d718bc05fe84366d75d1a", kill_on_drop: false }`
[INFO] [stdout] 63466f38b4093fba91ee7bea29d7c7833f959ffce74d718bc05fe84366d75d1a