[INFO] cloning repository https://github.com/oeb25/smtlib-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/oeb25/smtlib-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foeb25%2Fsmtlib-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foeb25%2Fsmtlib-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cf8626005af39b25ce317ee19b734c1df2185a43
[INFO] checking oeb25/smtlib-rs against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foeb25%2Fsmtlib-rs" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/oeb25/smtlib-rs 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] removed /workspace/builds/worker-1-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/oeb25/smtlib-rs
[INFO] finished tweaking git repo https://github.com/oeb25/smtlib-rs
[INFO] tweaked toml for git repo https://github.com/oeb25/smtlib-rs written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/oeb25/smtlib-rs 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 xshell-macros v0.2.5
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[INFO] [stderr]   Downloaded insta v1.34.0
[INFO] [stderr]   Downloaded z3-sys v0.8.1
[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] 5b2353af07d1f8563107647424b10f24b85e58991fc7b53a899c1e2aeca711a9
[INFO] running `Command { std: "docker" "start" "-a" "5b2353af07d1f8563107647424b10f24b85e58991fc7b53a899c1e2aeca711a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b2353af07d1f8563107647424b10f24b85e58991fc7b53a899c1e2aeca711a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b2353af07d1f8563107647424b10f24b85e58991fc7b53a899c1e2aeca711a9", kill_on_drop: false }`
[INFO] [stdout] 5b2353af07d1f8563107647424b10f24b85e58991fc7b53a899c1e2aeca711a9
[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] dc419bba86b85650a2cc5b6f0094833094463e955099e0624e709ae41a34757b
[INFO] running `Command { std: "docker" "start" "-a" "dc419bba86b85650a2cc5b6f0094833094463e955099e0624e709ae41a34757b", kill_on_drop: false }`
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[INFO] [stderr]    Compiling serde_derive v1.0.192
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[INFO] [stderr]     Checking futures-executor v0.3.29
[INFO] [stderr]     Checking futures v0.3.29
[INFO] [stderr]     Checking smtlib-lowlevel v0.1.8 (/opt/rustwide/workdir/lowlevel)
[INFO] [stderr]     Checking ron v0.7.1
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[INFO] [stderr]     Checking serde_spanned v0.6.4
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[INFO] [stderr]     Checking smtlib v0.1.8 (/opt/rustwide/workdir/smtlib)
[INFO] [stderr]     Checking toml v0.8.8
[INFO] [stdout] warning: the item `Sort` is imported redundantly
[INFO] [stdout]    --> smtlib/src/lib.rs:179:32
[INFO] [stdout]     |
[INFO] [stdout] 179 |     use crate::terms::{forall, Sort};
[INFO] [stdout]     |                                ^^^^
[INFO] [stdout] 180 |
[INFO] [stdout] 181 |     use super::*;
[INFO] [stdout]     |         -------- the item `Sort` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking xtask v0.1.8 (/opt/rustwide/workdir/xtask)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 49.92s
[INFO] running `Command { std: "docker" "inspect" "dc419bba86b85650a2cc5b6f0094833094463e955099e0624e709ae41a34757b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc419bba86b85650a2cc5b6f0094833094463e955099e0624e709ae41a34757b", kill_on_drop: false }`
[INFO] [stdout] dc419bba86b85650a2cc5b6f0094833094463e955099e0624e709ae41a34757b