[INFO] fetching crate gst-plugin-rusoto 0.8.4...
[INFO] checking gst-plugin-rusoto-0.8.4 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate gst-plugin-rusoto 0.8.4 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate gst-plugin-rusoto 0.8.4 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 gst-plugin-rusoto 0.8.4
[INFO] finished tweaking crates.io crate gst-plugin-rusoto 0.8.4
[INFO] tweaked toml for crates.io crate gst-plugin-rusoto 0.8.4 written to /workspace/builds/worker-3-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 214 packages
[INFO] [stderr]       Adding async-tungstenite v0.17.2 (latest: v0.25.1)
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[INFO] [stderr]       Adding gobject-sys v0.15.10 (latest: v0.19.0)
[INFO] [stderr]       Adding gst-plugin-version-helper v0.7.5 (latest: v0.8.2)
[INFO] [stderr]       Adding gstreamer v0.18.8 (latest: v0.22.3)
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[INFO] [stderr]       Adding winnow v0.5.40 (latest: v0.6.5)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rusoto_signature v0.48.0
[INFO] [stderr]   Downloaded gstreamer-base v0.18.0
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[INFO] [stderr]   Downloaded rusoto_core v0.48.0
[INFO] [stderr]   Downloaded base32 v0.4.0
[INFO] [stderr]   Downloaded gst-plugin-version-helper v0.7.5
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[INFO] [stderr]   Downloaded crc v3.0.1
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[INFO] [stderr]   Downloaded rusoto_s3 v0.48.0
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[INFO] [stderr]   Downloaded gstreamer-sys v0.18.0
[INFO] [stderr]   Downloaded option-operations v0.4.1
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a048bf1c0193f88fbd809012ead9f5fc83c72039eaaa35873a5118067c15116e
[INFO] running `Command { std: "docker" "start" "-a" "a048bf1c0193f88fbd809012ead9f5fc83c72039eaaa35873a5118067c15116e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a048bf1c0193f88fbd809012ead9f5fc83c72039eaaa35873a5118067c15116e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a048bf1c0193f88fbd809012ead9f5fc83c72039eaaa35873a5118067c15116e", kill_on_drop: false }`
[INFO] [stdout] a048bf1c0193f88fbd809012ead9f5fc83c72039eaaa35873a5118067c15116e
[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_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] c9b3e16a66dc8cccc057cada2e33312e05f132eaf68fdaefa63e4986c3eaf10c
[INFO] running `Command { std: "docker" "start" "-a" "c9b3e16a66dc8cccc057cada2e33312e05f132eaf68fdaefa63e4986c3eaf10c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling target-lexicon v0.12.14
[INFO] [stderr]    Compiling winnow v0.6.5
[INFO] [stderr]    Compiling smallvec v1.13.2
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[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling openssl-macros v0.1.1
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[INFO] [stderr]    Compiling anyhow v1.0.81
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[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
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[INFO] [stderr]    Compiling iana-time-zone v0.1.60
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[INFO] [stderr]    Compiling rusoto_core v0.48.0
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[INFO] [stderr]    Compiling cfg-expr v0.15.7
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[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]    Compiling gst-plugin-rusoto v0.8.4 (/opt/rustwide/workdir)
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[INFO] [stderr]    Compiling system-deps v6.2.2
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[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]   --> src/aws_transcriber/imp.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use std::default::Default;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Default` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `nom` is imported redundantly
[INFO] [stdout]   --> src/aws_transcriber/packet/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     self, bytes::complete::take, combinator::map_res, multi::many0, number::complete::be_u16,
[INFO] [stdout]    |     ^^^^ the item `nom` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]   --> src/aws_transcriber/imp.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use std::default::Default;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Default` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `nom` is imported redundantly
[INFO] [stdout]   --> src/aws_transcriber/packet/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     self, bytes::complete::take, combinator::map_res, multi::many0, number::complete::be_u16,
[INFO] [stdout]    |     ^^^^ the item `nom` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/s3utils.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Std(std::io::Error),
[INFO] [stdout]    |     --- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Std(()),
[INFO] [stdout]    |         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/s3utils.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Std(std::io::Error),
[INFO] [stdout]    |     --- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Std(()),
[INFO] [stdout]    |         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.52s
[INFO] running `Command { std: "docker" "inspect" "c9b3e16a66dc8cccc057cada2e33312e05f132eaf68fdaefa63e4986c3eaf10c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9b3e16a66dc8cccc057cada2e33312e05f132eaf68fdaefa63e4986c3eaf10c", kill_on_drop: false }`
[INFO] [stdout] c9b3e16a66dc8cccc057cada2e33312e05f132eaf68fdaefa63e4986c3eaf10c