[INFO] fetching crate derive-codegen 0.0.4...
[INFO] checking derive-codegen-0.0.4 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate derive-codegen 0.0.4 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate derive-codegen 0.0.4 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 derive-codegen 0.0.4
[INFO] finished tweaking crates.io crate derive-codegen 0.0.4
[INFO] tweaked toml for crates.io crate derive-codegen 0.0.4 written to /workspace/builds/worker-7-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 37 packages
[INFO] [stderr]       Adding encode_unicode v0.3.6 (latest: v1.0.0)
[INFO] [stderr]       Adding i-codegen-code v0.0.3 (latest: v0.0.5)
[INFO] [stderr]       Adding i-codegen-derive v0.0.3 (latest: v0.0.5)
[INFO] [stderr]       Adding serde_derive_internals v0.28.0 (latest: v0.29.0)
[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 linkme-impl v0.3.25
[INFO] [stderr]   Downloaded serde_derive_internals v0.28.0
[INFO] [stderr]   Downloaded i-codegen-derive v0.0.3
[INFO] [stderr]   Downloaded i-codegen-code v0.0.3
[INFO] [stderr]   Downloaded insta v1.38.0
[INFO] [stderr]   Downloaded linkme v0.3.25
[INFO] [stderr]   Downloaded similar v2.5.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20690030df2c25f5d012986a4ea8e5cba62c65adb173dc1cd3dd711127e1f3e9
[INFO] running `Command { std: "docker" "start" "-a" "20690030df2c25f5d012986a4ea8e5cba62c65adb173dc1cd3dd711127e1f3e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20690030df2c25f5d012986a4ea8e5cba62c65adb173dc1cd3dd711127e1f3e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20690030df2c25f5d012986a4ea8e5cba62c65adb173dc1cd3dd711127e1f3e9", kill_on_drop: false }`
[INFO] [stdout] 20690030df2c25f5d012986a4ea8e5cba62c65adb173dc1cd3dd711127e1f3e9
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16efb115e773a19f17d0e5d6e5c0075c791125f60e8d3e178572835db04a1d6c
[INFO] running `Command { std: "docker" "start" "-a" "16efb115e773a19f17d0e5d6e5c0075c791125f60e8d3e178572835db04a1d6c", kill_on_drop: false }`
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking similar v2.5.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking insta v1.38.0
[INFO] [stderr]    Compiling serde_derive_internals v0.28.0
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling linkme-impl v0.3.25
[INFO] [stderr]    Compiling linkme v0.3.25
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking i-codegen-code v0.0.3
[INFO] [stderr]    Compiling i-codegen-derive v0.0.3
[INFO] [stderr]     Checking derive-codegen v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]  --> src/generate.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde::{self, Deserialize, Serialize};
[INFO] [stdout]   |             ^^^^ the item `serde` 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 `serde` is imported redundantly
[INFO] [stdout]  --> src/generate.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde::{self, Deserialize, Serialize};
[INFO] [stdout]   |             ^^^^ the item `serde` 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 10.37s
[INFO] running `Command { std: "docker" "inspect" "16efb115e773a19f17d0e5d6e5c0075c791125f60e8d3e178572835db04a1d6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16efb115e773a19f17d0e5d6e5c0075c791125f60e8d3e178572835db04a1d6c", kill_on_drop: false }`
[INFO] [stdout] 16efb115e773a19f17d0e5d6e5c0075c791125f60e8d3e178572835db04a1d6c