[INFO] fetching crate floaout 0.2.2...
[INFO] checking floaout-0.2.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate floaout 0.2.2 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate floaout 0.2.2 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate floaout 0.2.2
[INFO] finished tweaking crates.io crate floaout 0.2.2
[INFO] tweaked toml for crates.io crate floaout 0.2.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mpl v0.2.0
[INFO] [stderr]   Downloaded mycrc v0.3.1
[INFO] [stderr]   Downloaded mpl-macro v0.1.2
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e614d23b9a88649cbe98a480e1ec2dd59fa4805c5d670d8768ed1b48a6c61e67
[INFO] running `Command { std: "docker" "start" "-a" "e614d23b9a88649cbe98a480e1ec2dd59fa4805c5d670d8768ed1b48a6c61e67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e614d23b9a88649cbe98a480e1ec2dd59fa4805c5d670d8768ed1b48a6c61e67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e614d23b9a88649cbe98a480e1ec2dd59fa4805c5d670d8768ed1b48a6c61e67", kill_on_drop: false }`
[INFO] [stdout] e614d23b9a88649cbe98a480e1ec2dd59fa4805c5d670d8768ed1b48a6c61e67
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cddc021c49b1fae13ac4cf391a93992ecd3970481b2e09c5efabc7b7827c9616
[INFO] running `Command { std: "docker" "start" "-a" "cddc021c49b1fae13ac4cf391a93992ecd3970481b2e09c5efabc7b7827c9616", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling mpl v0.2.0
[INFO] [stderr]     Checking mycrc v0.3.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling mpl-macro v0.1.2
[INFO] [stderr]     Checking floaout v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `BubSampleKind` is imported redundantly
[INFO] [stdout]    --> src/bub/io/frame_reader.rs:270:22
[INFO] [stdout]     |
[INFO] [stdout] 269 |     use super::*;
[INFO] [stdout]     |         -------- the item `BubSampleKind` is already imported here
[INFO] [stdout] 270 |     use crate::bub::{BubSampleKind, BubState::*};
[INFO] [stdout]     |                      ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Result` is imported redundantly
[INFO] [stdout]    --> src/wav/metadata.rs:241:9
[INFO] [stdout]     |
[INFO] [stdout] 240 |     use super::*;
[INFO] [stdout]     |         -------- the item `Result` is already imported here
[INFO] [stdout] 241 |     use std::io::Result;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.25s
[INFO] running `Command { std: "docker" "inspect" "cddc021c49b1fae13ac4cf391a93992ecd3970481b2e09c5efabc7b7827c9616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cddc021c49b1fae13ac4cf391a93992ecd3970481b2e09c5efabc7b7827c9616", kill_on_drop: false }`
[INFO] [stdout] cddc021c49b1fae13ac4cf391a93992ecd3970481b2e09c5efabc7b7827c9616
[INFO] checking floaout-0.2.2 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate floaout 0.2.2 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate floaout 0.2.2 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate floaout 0.2.2
[INFO] finished tweaking crates.io crate floaout 0.2.2
[INFO] tweaked toml for crates.io crate floaout 0.2.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95511c82438da3b5d1134c414f2882a925d583ca63ca2f4496a9ed0af6736cf6
[INFO] running `Command { std: "docker" "start" "-a" "95511c82438da3b5d1134c414f2882a925d583ca63ca2f4496a9ed0af6736cf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95511c82438da3b5d1134c414f2882a925d583ca63ca2f4496a9ed0af6736cf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95511c82438da3b5d1134c414f2882a925d583ca63ca2f4496a9ed0af6736cf6", kill_on_drop: false }`
[INFO] [stdout] 95511c82438da3b5d1134c414f2882a925d583ca63ca2f4496a9ed0af6736cf6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38513cc86f5db2cbf5a7934550b184c05a691076257f9f3955036289859366be
[INFO] running `Command { std: "docker" "start" "-a" "38513cc86f5db2cbf5a7934550b184c05a691076257f9f3955036289859366be", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling mpl v0.2.0
[INFO] [stderr]     Checking mycrc v0.3.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling mpl-macro v0.1.2
[INFO] [stderr]     Checking floaout v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `BubSampleKind` is imported redundantly
[INFO] [stdout]    --> src/bub/io/frame_reader.rs:270:22
[INFO] [stdout]     |
[INFO] [stdout] 269 |     use super::*;
[INFO] [stdout]     |         -------- the item `BubSampleKind` is already imported here
[INFO] [stdout] 270 |     use crate::bub::{BubSampleKind, BubState::*};
[INFO] [stdout]     |                      ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Result` is imported redundantly
[INFO] [stdout]    --> src/wav/metadata.rs:241:9
[INFO] [stdout]     |
[INFO] [stdout] 240 |     use super::*;
[INFO] [stdout]     |         -------- the item `Result` is already imported here
[INFO] [stdout] 241 |     use std::io::Result;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.35s
[INFO] running `Command { std: "docker" "inspect" "38513cc86f5db2cbf5a7934550b184c05a691076257f9f3955036289859366be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38513cc86f5db2cbf5a7934550b184c05a691076257f9f3955036289859366be", kill_on_drop: false }`
[INFO] [stdout] 38513cc86f5db2cbf5a7934550b184c05a691076257f9f3955036289859366be