[INFO] fetching crate sat_lab 0.1.0...
[INFO] checking sat_lab-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate sat_lab 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate sat_lab 0.1.0 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 sat_lab 0.1.0
[INFO] finished tweaking crates.io crate sat_lab 0.1.0
[INFO] tweaked toml for crates.io crate sat_lab 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate sat_lab 0.1.0 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 count-macro v0.2.2
[INFO] [stderr]   Downloaded bool_vec v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] abdb3a82fa0e6dee62f169c90e05c16a412e3c6e023a4b2c166cff3e654ba167
[INFO] running `Command { std: "docker" "start" "-a" "abdb3a82fa0e6dee62f169c90e05c16a412e3c6e023a4b2c166cff3e654ba167", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abdb3a82fa0e6dee62f169c90e05c16a412e3c6e023a4b2c166cff3e654ba167", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abdb3a82fa0e6dee62f169c90e05c16a412e3c6e023a4b2c166cff3e654ba167", kill_on_drop: false }`
[INFO] [stdout] abdb3a82fa0e6dee62f169c90e05c16a412e3c6e023a4b2c166cff3e654ba167
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 993b2106ff2ca359b2638f74f24b4d26375c21c28cde6e20d44992b844189a1c
[INFO] running `Command { std: "docker" "start" "-a" "993b2106ff2ca359b2638f74f24b4d26375c21c28cde6e20d44992b844189a1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling regex-syntax v0.7.2
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling aho-corasick v1.0.2
[INFO] [stderr]    Compiling regex v1.8.4
[INFO] [stderr]    Compiling count-macro v0.2.2
[INFO] [stderr]     Checking bool_vec v0.2.1
[INFO] [stderr]     Checking sat_lab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `BoolVec` is imported redundantly
[INFO] [stdout]    --> src/clause.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |     use super::*;
[INFO] [stdout]     |         -------- the item `BoolVec` is already imported here
[INFO] [stdout] 107 |     use bool_vec::BoolVec;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.35s
[INFO] running `Command { std: "docker" "inspect" "993b2106ff2ca359b2638f74f24b4d26375c21c28cde6e20d44992b844189a1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "993b2106ff2ca359b2638f74f24b4d26375c21c28cde6e20d44992b844189a1c", kill_on_drop: false }`
[INFO] [stdout] 993b2106ff2ca359b2638f74f24b4d26375c21c28cde6e20d44992b844189a1c
[INFO] checking sat_lab-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate sat_lab 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate sat_lab 0.1.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sat_lab 0.1.0
[INFO] finished tweaking crates.io crate sat_lab 0.1.0
[INFO] tweaked toml for crates.io crate sat_lab 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate sat_lab 0.1.0 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef9aab95d1fa7d4be8c81ac675e21a56556578c8f983f64eda738ab9b21db43a
[INFO] running `Command { std: "docker" "start" "-a" "ef9aab95d1fa7d4be8c81ac675e21a56556578c8f983f64eda738ab9b21db43a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef9aab95d1fa7d4be8c81ac675e21a56556578c8f983f64eda738ab9b21db43a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef9aab95d1fa7d4be8c81ac675e21a56556578c8f983f64eda738ab9b21db43a", kill_on_drop: false }`
[INFO] [stdout] ef9aab95d1fa7d4be8c81ac675e21a56556578c8f983f64eda738ab9b21db43a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 433fa43658c77475acb704bbc8785b04802e5a23135e8db506992185ad6f569a
[INFO] running `Command { std: "docker" "start" "-a" "433fa43658c77475acb704bbc8785b04802e5a23135e8db506992185ad6f569a", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling regex-syntax v0.7.2
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling aho-corasick v1.0.2
[INFO] [stderr]    Compiling regex v1.8.4
[INFO] [stderr]    Compiling count-macro v0.2.2
[INFO] [stderr]     Checking bool_vec v0.2.1
[INFO] [stderr]     Checking sat_lab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `BoolVec` is imported redundantly
[INFO] [stdout]    --> src/clause.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |     use super::*;
[INFO] [stdout]     |         -------- the item `BoolVec` is already imported here
[INFO] [stdout] 107 |     use bool_vec::BoolVec;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.39s
[INFO] running `Command { std: "docker" "inspect" "433fa43658c77475acb704bbc8785b04802e5a23135e8db506992185ad6f569a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "433fa43658c77475acb704bbc8785b04802e5a23135e8db506992185ad6f569a", kill_on_drop: false }`
[INFO] [stdout] 433fa43658c77475acb704bbc8785b04802e5a23135e8db506992185ad6f569a