[INFO] fetching crate fiscalprinter 1.1.1...
[INFO] checking fiscalprinter-1.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate fiscalprinter 1.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate fiscalprinter 1.1.1 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 fiscalprinter 1.1.1
[INFO] finished tweaking crates.io crate fiscalprinter 1.1.1
[INFO] tweaked toml for crates.io crate fiscalprinter 1.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate fiscalprinter 1.1.1 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 IOKit-sys v0.1.5
[INFO] [stderr]   Downloaded libudev-sys v0.1.4
[INFO] [stderr]   Downloaded mach v0.3.2
[INFO] [stderr]   Downloaded CoreFoundation-sys v0.1.4
[INFO] [stderr]   Downloaded mach v0.1.2
[INFO] [stderr]   Downloaded libudev v0.3.0
[INFO] [stderr]   Downloaded serialport v4.2.0
[INFO] [stderr]   Downloaded nix v0.24.2
[INFO] [stderr]   Downloaded libc v0.2.135
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 63bbf1d9c8c2556218c3a69426480a1d2d9742359f7a3427299a3a14ac84d927
[INFO] running `Command { std: "docker" "start" "-a" "63bbf1d9c8c2556218c3a69426480a1d2d9742359f7a3427299a3a14ac84d927", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63bbf1d9c8c2556218c3a69426480a1d2d9742359f7a3427299a3a14ac84d927", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63bbf1d9c8c2556218c3a69426480a1d2d9742359f7a3427299a3a14ac84d927", kill_on_drop: false }`
[INFO] [stdout] 63bbf1d9c8c2556218c3a69426480a1d2d9742359f7a3427299a3a14ac84d927
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 069c402def2172663ce43fc5faff79c8c79ddc2318cbc0ce602c501d0942d26a
[INFO] running `Command { std: "docker" "start" "-a" "069c402def2172663ce43fc5faff79c8c79ddc2318cbc0ce602c501d0942d26a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking nix v0.24.2
[INFO] [stderr]     Checking libudev v0.3.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking serialport v4.2.0
[INFO] [stderr]     Checking fiscalprinter v1.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.16s
[INFO] running `Command { std: "docker" "inspect" "069c402def2172663ce43fc5faff79c8c79ddc2318cbc0ce602c501d0942d26a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "069c402def2172663ce43fc5faff79c8c79ddc2318cbc0ce602c501d0942d26a", kill_on_drop: false }`
[INFO] [stdout] 069c402def2172663ce43fc5faff79c8c79ddc2318cbc0ce602c501d0942d26a
[INFO] checking fiscalprinter-1.1.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate fiscalprinter 1.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate fiscalprinter 1.1.1 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 fiscalprinter 1.1.1
[INFO] finished tweaking crates.io crate fiscalprinter 1.1.1
[INFO] tweaked toml for crates.io crate fiscalprinter 1.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate fiscalprinter 1.1.1 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 9d8fa8fb615cb90c81e895d9d9a3dace52bcce51d42017f8f60280d64b7968ff
[INFO] running `Command { std: "docker" "start" "-a" "9d8fa8fb615cb90c81e895d9d9a3dace52bcce51d42017f8f60280d64b7968ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d8fa8fb615cb90c81e895d9d9a3dace52bcce51d42017f8f60280d64b7968ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d8fa8fb615cb90c81e895d9d9a3dace52bcce51d42017f8f60280d64b7968ff", kill_on_drop: false }`
[INFO] [stdout] 9d8fa8fb615cb90c81e895d9d9a3dace52bcce51d42017f8f60280d64b7968ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b5ce5ea06ecda892fd54233924ef2a810fe050a1fde887c265694fd604eb52c5
[INFO] running `Command { std: "docker" "start" "-a" "b5ce5ea06ecda892fd54233924ef2a810fe050a1fde887c265694fd604eb52c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking nix v0.24.2
[INFO] [stderr]     Checking libudev v0.3.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking serialport v4.2.0
[INFO] [stderr]     Checking fiscalprinter v1.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.15s
[INFO] running `Command { std: "docker" "inspect" "b5ce5ea06ecda892fd54233924ef2a810fe050a1fde887c265694fd604eb52c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5ce5ea06ecda892fd54233924ef2a810fe050a1fde887c265694fd604eb52c5", kill_on_drop: false }`
[INFO] [stdout] b5ce5ea06ecda892fd54233924ef2a810fe050a1fde887c265694fd604eb52c5