[INFO] cloning repository https://github.com/blu-dev/serde-prc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blu-dev/serde-prc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblu-dev%2Fserde-prc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblu-dev%2Fserde-prc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1aebe08f18ffd4525769b9bd588430da3f1b0e80
[INFO] checking blu-dev/serde-prc/1aebe08f18ffd4525769b9bd588430da3f1b0e80 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblu-dev%2Fserde-prc" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/blu-dev/serde-prc on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/blu-dev/serde-prc
[INFO] finished tweaking git repo https://github.com/blu-dev/serde-prc
[INFO] tweaked toml for git repo https://github.com/blu-dev/serde-prc written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/blu-dev/serde-prc 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hash40 v1.3.1
[INFO] [stderr]   Downloaded diff-struct v0.3.1
[INFO] [stderr]   Downloaded binrw_derive v0.11.2
[INFO] [stderr]   Downloaded diff_derive v0.1.2
[INFO] [stderr]   Downloaded binrw v0.11.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cddb44e7a617e5f4880b57d5354a025cc411f259d4829db33049877be324dee
[INFO] running `Command { std: "docker" "start" "-a" "6cddb44e7a617e5f4880b57d5354a025cc411f259d4829db33049877be324dee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cddb44e7a617e5f4880b57d5354a025cc411f259d4829db33049877be324dee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cddb44e7a617e5f4880b57d5354a025cc411f259d4829db33049877be324dee", kill_on_drop: false }`
[INFO] [stdout] 6cddb44e7a617e5f4880b57d5354a025cc411f259d4829db33049877be324dee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 668f01d332f07391c2c364bfc7aa9dcdca42fac89b8775169196e61d9ca586d9
[INFO] running `Command { std: "docker" "start" "-a" "668f01d332f07391c2c364bfc7aa9dcdca42fac89b8775169196e61d9ca586d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling binrw_derive v0.11.2
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling owo-colors v3.5.0
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]    Compiling binrw v0.11.2
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking futures-io v0.3.29
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]    Compiling thiserror v1.0.51
[INFO] [stderr]     Checking array-init v2.1.0
[INFO] [stderr]     Checking bimap v0.6.3
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.41
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]     Checking futures-executor v0.3.29
[INFO] [stderr]     Checking futures v0.3.29
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling thiserror-impl v1.0.51
[INFO] [stderr]    Compiling serial_test_derive v2.0.0
[INFO] [stderr]     Checking serial_test v2.0.0
[INFO] [stderr]    Compiling diff_derive v0.1.2
[INFO] [stderr]     Checking diff-struct v0.3.1
[INFO] [stderr]     Checking hash40 v1.3.1
[INFO] [stderr]     Checking serde-prc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/de.rs:487:13
[INFO] [stdout]     |
[INFO] [stdout] 487 |         let offset = self.reader.stream_position()?;
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/de.rs:487:13
[INFO] [stdout]     |
[INFO] [stdout] 487 |         let offset = self.reader.stream_position()?;
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` 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 16.92s
[INFO] running `Command { std: "docker" "inspect" "668f01d332f07391c2c364bfc7aa9dcdca42fac89b8775169196e61d9ca586d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "668f01d332f07391c2c364bfc7aa9dcdca42fac89b8775169196e61d9ca586d9", kill_on_drop: false }`
[INFO] [stdout] 668f01d332f07391c2c364bfc7aa9dcdca42fac89b8775169196e61d9ca586d9