[INFO] fetching crate flawless-wasabi 1.0.0-alpha.2+brazilian-capybara...
[INFO] checking flawless-wasabi-1.0.0-alpha.2+brazilian-capybara against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate flawless-wasabi 1.0.0-alpha.2+brazilian-capybara into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate flawless-wasabi 1.0.0-alpha.2+brazilian-capybara 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 flawless-wasabi 1.0.0-alpha.2+brazilian-capybara
[INFO] finished tweaking crates.io crate flawless-wasabi 1.0.0-alpha.2+brazilian-capybara
[INFO] tweaked toml for crates.io crate flawless-wasabi 1.0.0-alpha.2+brazilian-capybara written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages
[INFO] [stderr]       Adding http v0.2.12 (latest: v1.1.0)
[INFO] [stderr]       Adding http-serde v1.1.3 (latest: v2.0.0)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded http-serde v1.1.3
[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] 1f91e32b4af5d45cf3347c070e762f8c400368051c2ff1ac14d8e0d8aa9e3d86
[INFO] running `Command { std: "docker" "start" "-a" "1f91e32b4af5d45cf3347c070e762f8c400368051c2ff1ac14d8e0d8aa9e3d86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f91e32b4af5d45cf3347c070e762f8c400368051c2ff1ac14d8e0d8aa9e3d86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f91e32b4af5d45cf3347c070e762f8c400368051c2ff1ac14d8e0d8aa9e3d86", kill_on_drop: false }`
[INFO] [stdout] 1f91e32b4af5d45cf3347c070e762f8c400368051c2ff1ac14d8e0d8aa9e3d86
[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] 11c388b072932fac85453a692fa6b26f9671ebdee5ea4c1fa68a2e6fd0c9d27b
[INFO] running `Command { std: "docker" "start" "-a" "11c388b072932fac85453a692fa6b26f9671ebdee5ea4c1fa68a2e6fd0c9d27b", kill_on_drop: false }`
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking http-serde v1.1.3
[INFO] [stderr]     Checking flawless-wasabi v1.0.0-alpha.2+brazilian-capybara (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.45s
[INFO] running `Command { std: "docker" "inspect" "11c388b072932fac85453a692fa6b26f9671ebdee5ea4c1fa68a2e6fd0c9d27b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11c388b072932fac85453a692fa6b26f9671ebdee5ea4c1fa68a2e6fd0c9d27b", kill_on_drop: false }`
[INFO] [stdout] 11c388b072932fac85453a692fa6b26f9671ebdee5ea4c1fa68a2e6fd0c9d27b
[INFO] checking flawless-wasabi-1.0.0-alpha.2+brazilian-capybara against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate flawless-wasabi 1.0.0-alpha.2+brazilian-capybara into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate flawless-wasabi 1.0.0-alpha.2+brazilian-capybara on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flawless-wasabi 1.0.0-alpha.2+brazilian-capybara
[INFO] finished tweaking crates.io crate flawless-wasabi 1.0.0-alpha.2+brazilian-capybara
[INFO] tweaked toml for crates.io crate flawless-wasabi 1.0.0-alpha.2+brazilian-capybara written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages
[INFO] [stderr]       Adding http v0.2.12 (latest: v1.1.0)
[INFO] [stderr]       Adding http-serde v1.1.3 (latest: v2.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c93942a68ade0d7e613bfb76ff11b6fad10f7190ae0731f7801c8a4bdce5061
[INFO] running `Command { std: "docker" "start" "-a" "0c93942a68ade0d7e613bfb76ff11b6fad10f7190ae0731f7801c8a4bdce5061", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c93942a68ade0d7e613bfb76ff11b6fad10f7190ae0731f7801c8a4bdce5061", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c93942a68ade0d7e613bfb76ff11b6fad10f7190ae0731f7801c8a4bdce5061", kill_on_drop: false }`
[INFO] [stdout] 0c93942a68ade0d7e613bfb76ff11b6fad10f7190ae0731f7801c8a4bdce5061
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56c1b929a5dc96f2e88afaeadd55530bc7b9b6b8b515192b8ede4a2b51e36a00
[INFO] running `Command { std: "docker" "start" "-a" "56c1b929a5dc96f2e88afaeadd55530bc7b9b6b8b515192b8ede4a2b51e36a00", kill_on_drop: false }`
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking http-serde v1.1.3
[INFO] [stderr]     Checking flawless-wasabi v1.0.0-alpha.2+brazilian-capybara (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.51s
[INFO] running `Command { std: "docker" "inspect" "56c1b929a5dc96f2e88afaeadd55530bc7b9b6b8b515192b8ede4a2b51e36a00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56c1b929a5dc96f2e88afaeadd55530bc7b9b6b8b515192b8ede4a2b51e36a00", kill_on_drop: false }`
[INFO] [stdout] 56c1b929a5dc96f2e88afaeadd55530bc7b9b6b8b515192b8ede4a2b51e36a00