[INFO] cloning repository https://github.com/clbarnes/jsoncanvas
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/clbarnes/jsoncanvas" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclbarnes%2Fjsoncanvas", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclbarnes%2Fjsoncanvas'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 547e8aefac84443fcf8f6a6ecc02d40e32b10bb6
[INFO] checking clbarnes/jsoncanvas against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclbarnes%2Fjsoncanvas" "/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/clbarnes/jsoncanvas 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/clbarnes/jsoncanvas
[INFO] finished tweaking git repo https://github.com/clbarnes/jsoncanvas
[INFO] tweaked toml for git repo https://github.com/clbarnes/jsoncanvas written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/clbarnes/jsoncanvas 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 hex_color v3.0.0
[INFO] [stderr]   Downloaded ambassador v0.3.6
[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] 11bf1c6cac23c94f5f9c0fd093f54c5476d460b07308a8fc4b5c71fc78b51aba
[INFO] running `Command { std: "docker" "start" "-a" "11bf1c6cac23c94f5f9c0fd093f54c5476d460b07308a8fc4b5c71fc78b51aba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11bf1c6cac23c94f5f9c0fd093f54c5476d460b07308a8fc4b5c71fc78b51aba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11bf1c6cac23c94f5f9c0fd093f54c5476d460b07308a8fc4b5c71fc78b51aba", kill_on_drop: false }`
[INFO] [stdout] 11bf1c6cac23c94f5f9c0fd093f54c5476d460b07308a8fc4b5c71fc78b51aba
[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] 08d464ab1f74b988bc8056299dad36349b71bd0fd55a2578988b7255cf90d8a9
[INFO] running `Command { std: "docker" "start" "-a" "08d464ab1f74b988bc8056299dad36349b71bd0fd55a2578988b7255cf90d8a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]    Compiling ambassador v0.3.6
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking hex_color v3.0.0
[INFO] [stderr]     Checking jsoncanvas v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.37s
[INFO] running `Command { std: "docker" "inspect" "08d464ab1f74b988bc8056299dad36349b71bd0fd55a2578988b7255cf90d8a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08d464ab1f74b988bc8056299dad36349b71bd0fd55a2578988b7255cf90d8a9", kill_on_drop: false }`
[INFO] [stdout] 08d464ab1f74b988bc8056299dad36349b71bd0fd55a2578988b7255cf90d8a9
[INFO] checking clbarnes/jsoncanvas against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclbarnes%2Fjsoncanvas" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/clbarnes/jsoncanvas 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/clbarnes/jsoncanvas
[INFO] finished tweaking git repo https://github.com/clbarnes/jsoncanvas
[INFO] tweaked toml for git repo https://github.com/clbarnes/jsoncanvas written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/clbarnes/jsoncanvas 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 022983bb438fa25c660197520265ca049061e8af89e1354ae2f9c5fa3fb9acb5
[INFO] running `Command { std: "docker" "start" "-a" "022983bb438fa25c660197520265ca049061e8af89e1354ae2f9c5fa3fb9acb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "022983bb438fa25c660197520265ca049061e8af89e1354ae2f9c5fa3fb9acb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "022983bb438fa25c660197520265ca049061e8af89e1354ae2f9c5fa3fb9acb5", kill_on_drop: false }`
[INFO] [stdout] 022983bb438fa25c660197520265ca049061e8af89e1354ae2f9c5fa3fb9acb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2bc2aa24f74d5c0cc103acefd2f3eba74c0eabb964039a6fb295da556c8f2092
[INFO] running `Command { std: "docker" "start" "-a" "2bc2aa24f74d5c0cc103acefd2f3eba74c0eabb964039a6fb295da556c8f2092", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]    Compiling ambassador v0.3.6
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking hex_color v3.0.0
[INFO] [stderr]     Checking jsoncanvas v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.01s
[INFO] running `Command { std: "docker" "inspect" "2bc2aa24f74d5c0cc103acefd2f3eba74c0eabb964039a6fb295da556c8f2092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bc2aa24f74d5c0cc103acefd2f3eba74c0eabb964039a6fb295da556c8f2092", kill_on_drop: false }`
[INFO] [stdout] 2bc2aa24f74d5c0cc103acefd2f3eba74c0eabb964039a6fb295da556c8f2092