[INFO] fetching crate b3_utils 0.8.4...
[INFO] checking b3_utils-0.8.4 against master#94b72d6bebbddb5d17860914c4544f37365e988c for pr-122789
[INFO] extracting crate b3_utils 0.8.4 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate b3_utils 0.8.4 on toolchain 94b72d6bebbddb5d17860914c4544f37365e988c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94b72d6bebbddb5d17860914c4544f37365e988c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate b3_utils 0.8.4
[INFO] finished tweaking crates.io crate b3_utils 0.8.4
[INFO] tweaked toml for crates.io crate b3_utils 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" "+94b72d6bebbddb5d17860914c4544f37365e988c" "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" "+94b72d6bebbddb5d17860914c4544f37365e988c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ic0 v0.21.1
[INFO] [stderr]   Downloaded ic-cdk v0.12.1
[INFO] [stderr]   Downloaded ic_principal v0.1.1
[INFO] [stderr]   Downloaded pairing v0.22.0
[INFO] [stderr]   Downloaded fake-simd v0.1.2
[INFO] [stderr]   Downloaded block-padding v0.1.5
[INFO] [stderr]   Downloaded crc8 v0.1.1
[INFO] [stderr]   Downloaded sha1_smol v1.0.0
[INFO] [stderr]   Downloaded block-buffer v0.7.3
[INFO] [stderr]   Downloaded md4 v0.8.0
[INFO] [stderr]   Downloaded digest v0.8.1
[INFO] [stderr]   Downloaded crc16 v0.4.0
[INFO] [stderr]   Downloaded candid v0.10.6
[INFO] [stderr]   Downloaded md2 v0.8.0
[INFO] [stderr]   Downloaded sha2 v0.8.2
[INFO] [stderr]   Downloaded sha3 v0.8.2
[INFO] [stderr]   Downloaded ic_bls12_381 v0.8.0
[INFO] [stderr]   Downloaded binread v2.2.0
[INFO] [stderr]   Downloaded candid_derive v0.6.6
[INFO] [stderr]   Downloaded pretty v0.12.3
[INFO] [stderr]   Downloaded psm v0.1.21
[INFO] [stderr]   Downloaded stacker v0.1.15
[INFO] [stderr]   Downloaded serde_tokenstream v0.1.7
[INFO] [stderr]   Downloaded slotmap v1.0.7
[INFO] [stderr]   Downloaded ic-stable-structures v0.6.3
[INFO] [stderr]   Downloaded binread_derive v2.1.0
[INFO] [stderr]   Downloaded typed-arena v2.0.2
[INFO] [stderr]   Downloaded ic-cdk-macros v0.8.4
[INFO] [stderr]   Downloaded leb128 v0.2.5
[INFO] [stderr]   Downloaded sha1 v0.6.1
[INFO] [stderr]   Downloaded opaque-debug v0.2.3
[INFO] [stderr]   Downloaded easy-hasher v2.2.1
[INFO] [stderr]   Downloaded byte-tools v0.3.1
[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" "+94b72d6bebbddb5d17860914c4544f37365e988c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13e94f0f3fa52a9aab4f45e3df45a7e86aaf8cdf8a84b1365b3b2c35b323e976
[INFO] running `Command { std: "docker" "start" "-a" "13e94f0f3fa52a9aab4f45e3df45a7e86aaf8cdf8a84b1365b3b2c35b323e976", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13e94f0f3fa52a9aab4f45e3df45a7e86aaf8cdf8a84b1365b3b2c35b323e976", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13e94f0f3fa52a9aab4f45e3df45a7e86aaf8cdf8a84b1365b3b2c35b323e976", kill_on_drop: false }`
[INFO] [stdout] 13e94f0f3fa52a9aab4f45e3df45a7e86aaf8cdf8a84b1365b3b2c35b323e976
[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" "+94b72d6bebbddb5d17860914c4544f37365e988c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28c8e2b5dc65cf5c333406a7b30f296f4640f7dce9947b0120d7d549c427ddb7
[INFO] running `Command { std: "docker" "start" "-a" "28c8e2b5dc65cf5c333406a7b30f296f4640f7dce9947b0120d7d549c427ddb7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling psm v0.1.21
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling stacker v0.1.15
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling data-encoding v2.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]    Compiling typed-arena v2.0.2
[INFO] [stderr]    Compiling candid_derive v0.6.6
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]    Compiling pretty v0.12.3
[INFO] [stderr]    Compiling leb128 v0.2.5
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]     Checking serde_bytes v0.11.14
[INFO] [stderr]     Checking ic0 v0.21.1
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]     Checking ic_principal v0.1.1
[INFO] [stderr]    Compiling serde_tokenstream v0.1.7
[INFO] [stderr]    Compiling binread_derive v2.1.0
[INFO] [stderr]    Compiling binread v2.2.0
[INFO] [stderr]     Checking candid v0.10.6
[INFO] [stderr]    Compiling ic-cdk-macros v0.8.4
[INFO] [stderr]     Checking ic-cdk v0.12.1
[INFO] [stderr]     Checking b3_utils v0.8.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Nat` is imported redundantly
[INFO] [stdout]   --> src/utils/encoder.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     use candid::Nat;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 82 |
[INFO] [stdout] 83 |     use super::*;
[INFO] [stdout]    |         -------- the item `Nat` is already imported here
[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` profile [unoptimized + debuginfo] target(s) in 11.96s
[INFO] running `Command { std: "docker" "inspect" "28c8e2b5dc65cf5c333406a7b30f296f4640f7dce9947b0120d7d549c427ddb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28c8e2b5dc65cf5c333406a7b30f296f4640f7dce9947b0120d7d549c427ddb7", kill_on_drop: false }`
[INFO] [stdout] 28c8e2b5dc65cf5c333406a7b30f296f4640f7dce9947b0120d7d549c427ddb7