[INFO] fetching crate nix_rs 0.2.2...
[INFO] checking nix_rs-0.2.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate nix_rs 0.2.2 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate nix_rs 0.2.2 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 nix_rs 0.2.2
[INFO] finished tweaking crates.io crate nix_rs 0.2.2
[INFO] tweaked toml for crates.io crate nix_rs 0.2.2 written to /workspace/builds/worker-1-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 129 packages
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding strsim v0.10.0 (latest: v0.11.1)
[INFO] [stderr]       Adding sysinfo v0.29.11 (latest: v0.30.8)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.55.0)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[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 serde_with_macros v3.7.0
[INFO] [stderr]   Downloaded is_proc_translated v0.1.1
[INFO] [stderr]   Downloaded os_info v3.8.2
[INFO] [stderr]   Downloaded serde_with v3.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 57d99e0cd4929728bcc34ccdc66588cdf6f1507c3702fb7cfab1f642c806c24c
[INFO] running `Command { std: "docker" "start" "-a" "57d99e0cd4929728bcc34ccdc66588cdf6f1507c3702fb7cfab1f642c806c24c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57d99e0cd4929728bcc34ccdc66588cdf6f1507c3702fb7cfab1f642c806c24c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57d99e0cd4929728bcc34ccdc66588cdf6f1507c3702fb7cfab1f642c806c24c", kill_on_drop: false }`
[INFO] [stdout] 57d99e0cd4929728bcc34ccdc66588cdf6f1507c3702fb7cfab1f642c806c24c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] b43dda94b2cd192c491053d569badd6c40795ec1cb696aef796d56361cba61fa
[INFO] running `Command { std: "docker" "start" "-a" "b43dda94b2cd192c491053d569badd6c40795ec1cb696aef796d56361cba61fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking is_proc_translated v0.1.1
[INFO] [stderr]     Checking shell-words v1.1.0
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking os_info v3.8.2
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking bytesize v1.3.0
[INFO] [stderr]     Checking sysinfo v0.29.11
[INFO] [stderr]    Compiling darling_core v0.20.8
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]    Compiling darling_macro v0.20.8
[INFO] [stderr]    Compiling darling v0.20.8
[INFO] [stderr]    Compiling serde_with_macros v3.7.0
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking serde_with v3.7.0
[INFO] [stderr]     Checking nix_rs v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `os_info` is imported redundantly
[INFO] [stdout]  --> src/env.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use os_info;
[INFO] [stdout]   |     ^^^^^^^ the item `os_info` 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 `os_info` is imported redundantly
[INFO] [stdout]  --> src/env.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use os_info;
[INFO] [stdout]   |     ^^^^^^^ the item `os_info` 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 11.87s
[INFO] running `Command { std: "docker" "inspect" "b43dda94b2cd192c491053d569badd6c40795ec1cb696aef796d56361cba61fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b43dda94b2cd192c491053d569badd6c40795ec1cb696aef796d56361cba61fa", kill_on_drop: false }`
[INFO] [stdout] b43dda94b2cd192c491053d569badd6c40795ec1cb696aef796d56361cba61fa