[INFO] cloning repository https://github.com/piperswe/nix_evaluator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/piperswe/nix_evaluator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiperswe%2Fnix_evaluator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiperswe%2Fnix_evaluator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5320ff07362e51db16e3522bdf6433360d42a14a
[INFO] checking piperswe/nix_evaluator against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiperswe%2Fnix_evaluator" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/piperswe/nix_evaluator 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 git repo https://github.com/piperswe/nix_evaluator
[INFO] finished tweaking git repo https://github.com/piperswe/nix_evaluator
[INFO] tweaked toml for git repo https://github.com/piperswe/nix_evaluator written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/piperswe/nix_evaluator 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clipboard-win v4.2.2
[INFO] [stderr]   Downloaded rowan v0.12.6
[INFO] [stderr]   Downloaded error-code v2.3.0
[INFO] [stderr]   Downloaded archery v0.4.0
[INFO] [stderr]   Downloaded fd-lock v3.0.0
[INFO] [stderr]   Downloaded cbitset v0.2.0
[INFO] [stderr]   Downloaded countme v2.0.4
[INFO] [stderr]   Downloaded rpds v0.10.0
[INFO] [stderr]   Downloaded rustyline v9.0.0
[INFO] [stderr]   Downloaded rnix v0.9.1
[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] ecb4dffa898939931f76aca7e93070e066da0d2d7340d802c61a01854f9330a2
[INFO] running `Command { std: "docker" "start" "-a" "ecb4dffa898939931f76aca7e93070e066da0d2d7340d802c61a01854f9330a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecb4dffa898939931f76aca7e93070e066da0d2d7340d802c61a01854f9330a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecb4dffa898939931f76aca7e93070e066da0d2d7340d802c61a01854f9330a2", kill_on_drop: false }`
[INFO] [stdout] ecb4dffa898939931f76aca7e93070e066da0d2d7340d802c61a01854f9330a2
[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] ba04d74f51a46dd7fd328aef4bafee2e130e75558a3aedc623f16d6dafd25742
[INFO] running `Command { std: "docker" "start" "-a" "ba04d74f51a46dd7fd328aef4bafee2e130e75558a3aedc623f16d6dafd25742", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]    Compiling ryu v1.0.5
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[INFO] [stderr]     Checking gimli v0.26.1
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[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling serde_json v1.0.69
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[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking endian-type v0.1.2
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[INFO] [stderr]     Checking archery v0.4.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking object v0.27.1
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[INFO] [stderr]     Checking tracing-subscriber v0.2.25
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[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]     Checking rowan v0.12.6
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[INFO] [stderr]     Checking version-compare v0.1.0
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[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking sha2 v0.9.8
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[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking fd-lock v3.0.0
[INFO] [stderr]     Checking nix v0.22.2
[INFO] [stderr]     Checking cbitset v0.2.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking smol_str v0.1.21
[INFO] [stderr]     Checking rnix v0.9.1
[INFO] [stderr]     Checking rustyline v9.0.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking tracing-error v0.1.2
[INFO] [stderr]     Checking color-spantrace v0.1.6
[INFO] [stderr]     Checking color-eyre v0.5.11
[INFO] [stderr]     Checking nix_evaluator v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.04s
[INFO] running `Command { std: "docker" "inspect" "ba04d74f51a46dd7fd328aef4bafee2e130e75558a3aedc623f16d6dafd25742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba04d74f51a46dd7fd328aef4bafee2e130e75558a3aedc623f16d6dafd25742", kill_on_drop: false }`
[INFO] [stdout] ba04d74f51a46dd7fd328aef4bafee2e130e75558a3aedc623f16d6dafd25742