[INFO] cloning repository https://github.com/imberny/raconteur
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/imberny/raconteur" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimberny%2Fraconteur", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimberny%2Fraconteur'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ebaec1b06d056cbf4b6fac8a7e67111c44246af3
[INFO] checking imberny/raconteur against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimberny%2Fraconteur" "/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/imberny/raconteur 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/imberny/raconteur
[INFO] finished tweaking git repo https://github.com/imberny/raconteur
[INFO] tweaked toml for git repo https://github.com/imberny/raconteur written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/imberny/raconteur 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 ron v0.8.0
[INFO] [stderr]   Downloaded serde v1.0.181
[INFO] [stderr]   Downloaded serde_derive v1.0.181
[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] 9ef53297fcc4004b63b17f5af7f49af989a2ff170abaa41759cba5e69a7a8cc0
[INFO] running `Command { std: "docker" "start" "-a" "9ef53297fcc4004b63b17f5af7f49af989a2ff170abaa41759cba5e69a7a8cc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ef53297fcc4004b63b17f5af7f49af989a2ff170abaa41759cba5e69a7a8cc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ef53297fcc4004b63b17f5af7f49af989a2ff170abaa41759cba5e69a7a8cc0", kill_on_drop: false }`
[INFO] [stdout] 9ef53297fcc4004b63b17f5af7f49af989a2ff170abaa41759cba5e69a7a8cc0
[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] 81a8930eafbbd82b2edee3277c90caa165dc7b5a655a235ff83ecd36975d05d4
[INFO] running `Command { std: "docker" "start" "-a" "81a8930eafbbd82b2edee3277c90caa165dc7b5a655a235ff83ecd36975d05d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.181
[INFO] [stderr]    Compiling serde_derive v1.0.181
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking fixedbitset v0.4.2
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking regex-automata v0.3.6
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking regex v1.9.3
[INFO] [stderr]     Checking petgraph v0.6.3
[INFO] [stderr]     Checking ron v0.8.0
[INFO] [stderr]     Checking raconteur v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.74s
[INFO] running `Command { std: "docker" "inspect" "81a8930eafbbd82b2edee3277c90caa165dc7b5a655a235ff83ecd36975d05d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81a8930eafbbd82b2edee3277c90caa165dc7b5a655a235ff83ecd36975d05d4", kill_on_drop: false }`
[INFO] [stdout] 81a8930eafbbd82b2edee3277c90caa165dc7b5a655a235ff83ecd36975d05d4
[INFO] checking imberny/raconteur against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimberny%2Fraconteur" "/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/imberny/raconteur 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/imberny/raconteur
[INFO] finished tweaking git repo https://github.com/imberny/raconteur
[INFO] tweaked toml for git repo https://github.com/imberny/raconteur written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/imberny/raconteur 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] fab05bc859d402d6fb05a7649c1affd77584d061e1c8b2bfa439d2dbdb20368a
[INFO] running `Command { std: "docker" "start" "-a" "fab05bc859d402d6fb05a7649c1affd77584d061e1c8b2bfa439d2dbdb20368a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fab05bc859d402d6fb05a7649c1affd77584d061e1c8b2bfa439d2dbdb20368a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fab05bc859d402d6fb05a7649c1affd77584d061e1c8b2bfa439d2dbdb20368a", kill_on_drop: false }`
[INFO] [stdout] fab05bc859d402d6fb05a7649c1affd77584d061e1c8b2bfa439d2dbdb20368a
[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] 4b7787d902c3c1f00236272a64a7db03618b8c0b545bcec886ca5f191efdfca5
[INFO] running `Command { std: "docker" "start" "-a" "4b7787d902c3c1f00236272a64a7db03618b8c0b545bcec886ca5f191efdfca5", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.181
[INFO] [stderr]    Compiling serde_derive v1.0.181
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking fixedbitset v0.4.2
[INFO] [stderr]     Checking regex-automata v0.3.6
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking regex v1.9.3
[INFO] [stderr]     Checking petgraph v0.6.3
[INFO] [stderr]     Checking ron v0.8.0
[INFO] [stderr]     Checking raconteur v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.84s
[INFO] running `Command { std: "docker" "inspect" "4b7787d902c3c1f00236272a64a7db03618b8c0b545bcec886ca5f191efdfca5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b7787d902c3c1f00236272a64a7db03618b8c0b545bcec886ca5f191efdfca5", kill_on_drop: false }`
[INFO] [stdout] 4b7787d902c3c1f00236272a64a7db03618b8c0b545bcec886ca5f191efdfca5