[INFO] fetching crate ipfs-bitswap 0.1.0...
[INFO] checking ipfs-bitswap-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate ipfs-bitswap 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate ipfs-bitswap 0.1.0 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 ipfs-bitswap 0.1.0
[INFO] finished tweaking crates.io crate ipfs-bitswap 0.1.0
[INFO] tweaked toml for crates.io crate ipfs-bitswap 0.1.0 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]      Locking 178 packages
[INFO] [stderr]       Adding arrayvec v0.5.2 (latest: v0.7.4)
[INFO] [stderr]       Adding asn1_der v0.6.3 (latest: v0.7.6)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding blake2b_simd v0.5.11 (latest: v1.0.2)
[INFO] [stderr]       Adding blake2s_simd v0.5.11 (latest: v1.0.2)
[INFO] [stderr]       Adding block-buffer v0.7.3 (latest: v0.10.4)
[INFO] [stderr]       Adding block-buffer v0.9.0 (latest: v0.10.4)
[INFO] [stderr]       Adding block-padding v0.1.5 (latest: v0.3.3)
[INFO] [stderr]       Adding block-padding v0.2.1 (latest: v0.3.3)
[INFO] [stderr]       Adding bs58 v0.3.1 (latest: v0.5.1)
[INFO] [stderr]       Adding bs58 v0.4.0 (latest: v0.5.1)
[INFO] [stderr]       Adding bytes v0.5.6 (latest: v1.6.0)
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] [stderr]       Adding cid v0.5.1 (latest: v0.11.1)
[INFO] [stderr]       Adding cloudabi v0.0.3 (latest: v0.1.0)
[INFO] [stderr]       Adding constant_time_eq v0.1.5 (latest: v0.3.0)
[INFO] [stderr]       Adding crypto-mac v0.7.0 (latest: v0.11.1)
[INFO] [stderr]       Adding curve25519-dalek v3.2.1 (latest: v4.1.2)
[INFO] [stderr]       Adding digest v0.8.1 (latest: v0.10.7)
[INFO] [stderr]       Adding digest v0.9.0 (latest: v0.10.7)
[INFO] [stderr]       Adding ed25519 v1.5.3 (latest: v2.2.3)
[INFO] [stderr]       Adding ed25519-dalek v1.0.1 (latest: v2.1.1)
[INFO] [stderr]       Adding fixedbitset v0.2.0 (latest: v0.5.6)
[INFO] [stderr]       Adding generic-array v0.12.4 (latest: v1.0.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding getrandom v0.1.16 (latest: v0.2.12)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding heck v0.3.3 (latest: v0.5.0)
[INFO] [stderr]       Adding hmac v0.7.1 (latest: v0.12.1)
[INFO] [stderr]       Adding hmac-drbg v0.2.0 (latest: v0.3.0)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding itertools v0.8.2 (latest: v0.12.1)
[INFO] [stderr]       Adding libp2p-core v0.22.1 (latest: v0.41.2)
[INFO] [stderr]       Adding libp2p-swarm v0.22.0 (latest: v0.44.1)
[INFO] [stderr]       Adding libsecp256k1 v0.3.5 (latest: v0.7.1)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding lock_api v0.3.4 (latest: v0.4.11)
[INFO] [stderr]       Adding multibase v0.8.0 (latest: v0.9.1)
[INFO] [stderr]       Adding multihash v0.11.4 (latest: v0.19.1)
[INFO] [stderr]       Adding multimap v0.8.3 (latest: v0.10.0)
[INFO] [stderr]       Adding multistream-select v0.8.5 (latest: v0.13.0)
[INFO] [stderr]       Adding opaque-debug v0.2.3 (latest: v0.3.1)
[INFO] [stderr]       Adding parity-multiaddr v0.9.7 (latest: v0.11.2)
[INFO] [stderr]       Adding parking_lot v0.10.2 (latest: v0.12.1)
[INFO] [stderr]       Adding parking_lot v0.11.2 (latest: v0.12.1)
[INFO] [stderr]       Adding parking_lot_core v0.7.3 (latest: v0.9.9)
[INFO] [stderr]       Adding parking_lot_core v0.8.6 (latest: v0.9.9)
[INFO] [stderr]       Adding petgraph v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding pin-project v0.4.30 (latest: v1.1.5)
[INFO] [stderr]       Adding pin-project-internal v0.4.30 (latest: v1.1.5)
[INFO] [stderr]       Adding pin-project-lite v0.1.12 (latest: v0.2.14)
[INFO] [stderr]       Adding prost v0.6.1 (latest: v0.12.4)
[INFO] [stderr]       Adding prost-build v0.6.1 (latest: v0.12.4)
[INFO] [stderr]       Adding prost-derive v0.6.1 (latest: v0.12.4)
[INFO] [stderr]       Adding prost-types v0.6.1 (latest: v0.12.4)
[INFO] [stderr]       Adding rand v0.7.3 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.2.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.2.0 (latest: v0.3.2)
[INFO] [stderr]       Adding redox_syscall v0.1.57 (latest: v0.5.1)
[INFO] [stderr]       Adding redox_syscall v0.2.16 (latest: v0.5.1)
[INFO] [stderr]       Adding ring v0.16.20 (latest: v0.17.8)
[INFO] [stderr]       Adding rw-stream-sink v0.2.1 (latest: v0.4.0)
[INFO] [stderr]       Adding sha-1 v0.9.8 (latest: v0.10.1)
[INFO] [stderr]       Adding sha2 v0.8.2 (latest: v0.10.8)
[INFO] [stderr]       Adding sha2 v0.9.9 (latest: v0.10.8)
[INFO] [stderr]       Adding sha3 v0.9.1 (latest: v0.10.8)
[INFO] [stderr]       Adding signature v1.6.4 (latest: v2.2.0)
[INFO] [stderr]       Adding spin v0.5.2 (latest: v0.9.8)
[INFO] [stderr]       Adding subtle v1.0.0 (latest: v2.5.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding tokio v0.2.25 (latest: v1.37.0)
[INFO] [stderr]       Adding unsigned-varint v0.3.3 (latest: v0.8.0)
[INFO] [stderr]       Adding unsigned-varint v0.4.0 (latest: v0.8.0)
[INFO] [stderr]       Adding unsigned-varint v0.5.1 (latest: v0.8.0)
[INFO] [stderr]       Adding untrusted v0.7.1 (latest: v0.9.0)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding which v3.1.1 (latest: v6.0.1)
[INFO] [stderr]       Adding zeroize v1.3.0 (latest: v1.7.0)
[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 prost v0.6.1
[INFO] [stderr]   Downloaded prost-derive v0.6.1
[INFO] [stderr]   Downloaded prost-types v0.6.1
[INFO] [stderr]   Downloaded crypto-mac v0.7.0
[INFO] [stderr]   Downloaded multihash v0.11.4
[INFO] [stderr]   Downloaded unsigned-varint v0.3.3
[INFO] [stderr]   Downloaded fixedbitset v0.2.0
[INFO] [stderr]   Downloaded multibase v0.8.0
[INFO] [stderr]   Downloaded cid v0.5.1
[INFO] [stderr]   Downloaded hmac v0.7.1
[INFO] [stderr]   Downloaded parking_lot v0.10.2
[INFO] [stderr]   Downloaded hmac-drbg v0.2.0
[INFO] [stderr]   Downloaded parking_lot_core v0.7.3
[INFO] [stderr]   Downloaded libp2p-core v0.22.1
[INFO] [stderr]   Downloaded petgraph v0.5.1
[INFO] [stderr]   Downloaded libp2p-swarm v0.22.0
[INFO] [stderr]   Downloaded asn1_der v0.6.3
[INFO] [stderr]   Downloaded multistream-select v0.8.5
[INFO] [stderr]   Downloaded parity-multiaddr v0.9.7
[INFO] [stderr]   Downloaded libsecp256k1 v0.3.5
[INFO] [stderr]   Downloaded unsigned-varint v0.4.0
[INFO] [stderr]   Downloaded unsigned-varint v0.5.1
[INFO] [stderr]   Downloaded asn1_der_derive v0.1.2
[INFO] [stderr]   Downloaded subtle v1.0.0
[INFO] [stderr]   Downloaded prost-build v0.6.1
[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] bd414df9bdd1d2b46710968e0a6e14c4b8cb3809ec1594575787c7fdb03187c2
[INFO] running `Command { std: "docker" "start" "-a" "bd414df9bdd1d2b46710968e0a6e14c4b8cb3809ec1594575787c7fdb03187c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd414df9bdd1d2b46710968e0a6e14c4b8cb3809ec1594575787c7fdb03187c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd414df9bdd1d2b46710968e0a6e14c4b8cb3809ec1594575787c7fdb03187c2", kill_on_drop: false }`
[INFO] [stdout] bd414df9bdd1d2b46710968e0a6e14c4b8cb3809ec1594575787c7fdb03187c2
[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] 8fa6a61e89c040e656bcd172f88ba1506af2d7b6fafa24979463c0807ff667a0
[INFO] running `Command { std: "docker" "start" "-a" "8fa6a61e89c040e656bcd172f88ba1506af2d7b6fafa24979463c0807ff667a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]     Checking arrayref v0.3.7
[INFO] [stderr]    Compiling fastrand v2.0.2
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking keccak v0.1.5
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking unsigned-varint v0.5.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.30
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking sha-1 v0.9.8
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking blake2s_simd v0.5.11
[INFO] [stderr]     Checking blake2b_simd v0.5.11
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking signature v1.6.4
[INFO] [stderr]    Compiling data-encoding v2.5.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking ed25519 v1.5.3
[INFO] [stderr]     Checking parking_lot_core v0.7.3
[INFO] [stderr]     Checking hmac-drbg v0.2.0
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]     Checking multihash v0.11.4
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking bs58 v0.4.0
[INFO] [stderr]     Checking futures-timer v3.0.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bs58 v0.3.1
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking base-x v0.2.11
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking unsigned-varint v0.4.0
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking unsigned-varint v0.3.3
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking libsecp256k1 v0.3.5
[INFO] [stderr]    Compiling tempfile v3.10.1
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.12
[INFO] [stderr]    Compiling asn1_der_derive v0.1.2
[INFO] [stderr]     Checking parity-multiaddr v0.9.7
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking data-encoding-macro v0.1.14
[INFO] [stderr]     Checking multibase v0.8.0
[INFO] [stderr]     Checking asn1_der v0.6.3
[INFO] [stderr]     Checking cid v0.5.1
[INFO] [stderr]     Checking pin-project v0.4.30
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]     Checking curve25519-dalek v3.2.1
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[INFO] [stderr]    Compiling libp2p-core v0.22.1
[INFO] [stderr]    Compiling ipfs-bitswap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking rw-stream-sink v0.2.1
[INFO] [stderr]     Checking multistream-select v0.8.5
[INFO] [stderr]     Checking wasm-timer v0.2.5
[INFO] [stderr]     Checking libp2p-swarm v0.22.0
[INFO] [stdout] warning: the item `cid` is imported redundantly
[INFO] [stdout]  --> src/prefix.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use cid::{self, Cid, Codec, Version};
[INFO] [stdout]   |           ^^^^ the item `cid` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `cid` is imported redundantly
[INFO] [stdout]  --> src/prefix.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use cid::{self, Cid, Codec, Version};
[INFO] [stdout]   |           ^^^^ the item `cid` is already defined by prelude
[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 23.76s
[INFO] running `Command { std: "docker" "inspect" "8fa6a61e89c040e656bcd172f88ba1506af2d7b6fafa24979463c0807ff667a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fa6a61e89c040e656bcd172f88ba1506af2d7b6fafa24979463c0807ff667a0", kill_on_drop: false }`
[INFO] [stdout] 8fa6a61e89c040e656bcd172f88ba1506af2d7b6fafa24979463c0807ff667a0