[INFO] cloning repository https://github.com/AbhinavRobinson/voltorb-rtcs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AbhinavRobinson/voltorb-rtcs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbhinavRobinson%2Fvoltorb-rtcs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbhinavRobinson%2Fvoltorb-rtcs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 647e86e5ba6facb9cffd291292eb57db9ff2cc5c
[INFO] checking AbhinavRobinson/voltorb-rtcs against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbhinavRobinson%2Fvoltorb-rtcs" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AbhinavRobinson/voltorb-rtcs 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/AbhinavRobinson/voltorb-rtcs
[INFO] finished tweaking git repo https://github.com/AbhinavRobinson/voltorb-rtcs
[INFO] tweaked toml for git repo https://github.com/AbhinavRobinson/voltorb-rtcs written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/AbhinavRobinson/voltorb-rtcs 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]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.145
[INFO] [stderr]   Downloaded serde_derive v1.0.145
[INFO] [stderr]   Downloaded anyhow v1.0.65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 19cfde52e6c11b582dbfaaca328663f78aedafd6ad6258bb08f30b8f2a25c7bd
[INFO] running `Command { std: "docker" "start" "-a" "19cfde52e6c11b582dbfaaca328663f78aedafd6ad6258bb08f30b8f2a25c7bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19cfde52e6c11b582dbfaaca328663f78aedafd6ad6258bb08f30b8f2a25c7bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19cfde52e6c11b582dbfaaca328663f78aedafd6ad6258bb08f30b8f2a25c7bd", kill_on_drop: false }`
[INFO] [stdout] 19cfde52e6c11b582dbfaaca328663f78aedafd6ad6258bb08f30b8f2a25c7bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 432616f2402a3ed19244c41bb4b01b6e75292afba0939ae6e1c210e9e39834d3
[INFO] running `Command { std: "docker" "start" "-a" "432616f2402a3ed19244c41bb4b01b6e75292afba0939ae6e1c210e9e39834d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling lock_api v0.4.8
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling anyhow v1.0.65
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]     Checking iana-time-zone v0.1.48
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]     Checking uuid v1.1.2
[INFO] [stderr]     Checking chrono v0.4.22
[INFO] [stderr]     Checking voltorb-rtcs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.34s
[INFO] running `Command { std: "docker" "inspect" "432616f2402a3ed19244c41bb4b01b6e75292afba0939ae6e1c210e9e39834d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "432616f2402a3ed19244c41bb4b01b6e75292afba0939ae6e1c210e9e39834d3", kill_on_drop: false }`
[INFO] [stdout] 432616f2402a3ed19244c41bb4b01b6e75292afba0939ae6e1c210e9e39834d3
[INFO] checking AbhinavRobinson/voltorb-rtcs against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbhinavRobinson%2Fvoltorb-rtcs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AbhinavRobinson/voltorb-rtcs 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 git repo https://github.com/AbhinavRobinson/voltorb-rtcs
[INFO] finished tweaking git repo https://github.com/AbhinavRobinson/voltorb-rtcs
[INFO] tweaked toml for git repo https://github.com/AbhinavRobinson/voltorb-rtcs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/AbhinavRobinson/voltorb-rtcs 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 7355c02970b9fec20efcceed08054976045d29d1f2d95b721b49547015f8460b
[INFO] running `Command { std: "docker" "start" "-a" "7355c02970b9fec20efcceed08054976045d29d1f2d95b721b49547015f8460b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7355c02970b9fec20efcceed08054976045d29d1f2d95b721b49547015f8460b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7355c02970b9fec20efcceed08054976045d29d1f2d95b721b49547015f8460b", kill_on_drop: false }`
[INFO] [stdout] 7355c02970b9fec20efcceed08054976045d29d1f2d95b721b49547015f8460b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 38988d653295f890a3c380ec88afada6d7300b2bc0a38a2e265fc1e8de4e532e
[INFO] running `Command { std: "docker" "start" "-a" "38988d653295f890a3c380ec88afada6d7300b2bc0a38a2e265fc1e8de4e532e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling lock_api v0.4.8
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]    Compiling anyhow v1.0.65
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking iana-time-zone v0.1.48
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]     Checking uuid v1.1.2
[INFO] [stderr]     Checking chrono v0.4.22
[INFO] [stderr]     Checking voltorb-rtcs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.46s
[INFO] running `Command { std: "docker" "inspect" "38988d653295f890a3c380ec88afada6d7300b2bc0a38a2e265fc1e8de4e532e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38988d653295f890a3c380ec88afada6d7300b2bc0a38a2e265fc1e8de4e532e", kill_on_drop: false }`
[INFO] [stdout] 38988d653295f890a3c380ec88afada6d7300b2bc0a38a2e265fc1e8de4e532e