[INFO] fetching crate libaom 0.3.1...
[INFO] checking libaom-0.3.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate libaom 0.3.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate libaom 0.3.1 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 libaom 0.3.1
[INFO] finished tweaking crates.io crate libaom 0.3.1
[INFO] tweaked toml for crates.io crate libaom 0.3.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate libaom 0.3.1 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded byte-slice-cast v1.2.0
[INFO] [stderr]   Downloaded av-codec v0.2.2
[INFO] [stderr]   Downloaded which v4.2.2
[INFO] [stderr]   Downloaded av-data v0.3.0
[INFO] [stderr]   Downloaded cfg-expr v0.9.0
[INFO] [stderr]   Downloaded version-compare v0.1.0
[INFO] [stderr]   Downloaded libloading v0.7.3
[INFO] [stderr]   Downloaded clang-sys v1.3.0
[INFO] [stderr]   Downloaded system-deps v6.0.0
[INFO] [stderr]   Downloaded aom-sys v0.3.1
[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] 36b8e1468c6a8c230230891402372f4b03c6f49819e1c50946df98501c5f097e
[INFO] running `Command { std: "docker" "start" "-a" "36b8e1468c6a8c230230891402372f4b03c6f49819e1c50946df98501c5f097e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36b8e1468c6a8c230230891402372f4b03c6f49819e1c50946df98501c5f097e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36b8e1468c6a8c230230891402372f4b03c6f49819e1c50946df98501c5f097e", kill_on_drop: false }`
[INFO] [stdout] 36b8e1468c6a8c230230891402372f4b03c6f49819e1c50946df98501c5f097e
[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] 59abd0d2b5d209f9b7574f0b75edefcb139486df2d6a0f8a22ee37432b2a08e5
[INFO] running `Command { std: "docker" "start" "-a" "59abd0d2b5d209f9b7574f0b75edefcb139486df2d6a0f8a22ee37432b2a08e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clang-sys v1.3.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling bindgen v0.59.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling which v4.2.2
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling cfg-expr v0.9.0
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]     Checking byte-slice-cast v1.2.0
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling system-deps v6.0.0
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking av-data v0.3.0
[INFO] [stderr]     Checking av-codec v0.2.2
[INFO] [stderr]    Compiling aom-sys v0.3.1
[INFO] [stderr]     Checking libaom v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Arc` is imported redundantly
[INFO] [stdout]    --> src/decoder.rs:189:9
[INFO] [stdout]     |
[INFO] [stdout] 183 |     use super::*;
[INFO] [stdout]     |         -------- the item `Arc` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 189 |     use std::sync::Arc;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Arc` is imported redundantly
[INFO] [stdout]    --> src/decoder.rs:189:9
[INFO] [stdout]     |
[INFO] [stdout] 183 |     use super::*;
[INFO] [stdout]     |         -------- the item `Arc` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 189 |     use std::sync::Arc;
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 49.55s
[INFO] running `Command { std: "docker" "inspect" "59abd0d2b5d209f9b7574f0b75edefcb139486df2d6a0f8a22ee37432b2a08e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59abd0d2b5d209f9b7574f0b75edefcb139486df2d6a0f8a22ee37432b2a08e5", kill_on_drop: false }`
[INFO] [stdout] 59abd0d2b5d209f9b7574f0b75edefcb139486df2d6a0f8a22ee37432b2a08e5