[INFO] fetching crate mime-rs 0.3.0...
[INFO] checking mime-rs-0.3.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate mime-rs 0.3.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate mime-rs 0.3.0 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 mime-rs 0.3.0
[INFO] finished tweaking crates.io crate mime-rs 0.3.0
[INFO] tweaked toml for crates.io crate mime-rs 0.3.0 written to /workspace/builds/worker-5-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]     Updating crates.io index
[INFO] [stderr]      Locking 20 packages
[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 cxxbridge-flags v1.0.120
[INFO] [stderr]   Downloaded link-cplusplus v1.0.9
[INFO] [stderr]   Downloaded scratch v1.0.7
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.120
[INFO] [stderr]   Downloaded cxx-build v1.0.120
[INFO] [stderr]   Downloaded cxx v1.0.120
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 934c8c983cc96a94c4f437770e5b9f94c5a68d8749c9dec53328511f14c6a653
[INFO] running `Command { std: "docker" "start" "-a" "934c8c983cc96a94c4f437770e5b9f94c5a68d8749c9dec53328511f14c6a653", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "934c8c983cc96a94c4f437770e5b9f94c5a68d8749c9dec53328511f14c6a653", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "934c8c983cc96a94c4f437770e5b9f94c5a68d8749c9dec53328511f14c6a653", kill_on_drop: false }`
[INFO] [stdout] 934c8c983cc96a94c4f437770e5b9f94c5a68d8749c9dec53328511f14c6a653
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 094e35ed8998a4cfc79cf287fc136abbefe22971f70985878780a4c3cc6dbf50
[INFO] running `Command { std: "docker" "start" "-a" "094e35ed8998a4cfc79cf287fc136abbefe22971f70985878780a4c3cc6dbf50", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling link-cplusplus v1.0.9
[INFO] [stderr]    Compiling scratch v1.0.7
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling cxxbridge-flags v1.0.120
[INFO] [stderr]    Compiling cxx v1.0.120
[INFO] [stderr]    Compiling codespan-reporting v0.11.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling cxx-build v1.0.120
[INFO] [stderr]    Compiling cxxbridge-macro v1.0.120
[INFO] [stderr]    Compiling mime-rs v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: mime-rs@0.3.0: Compiler version doesn't include clang or GCC: "c++" "--version"
[INFO] [stderr] warning: mime-rs@0.3.0: Compiler version doesn't include clang or GCC: "c++" "--version"
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 36.46s
[INFO] running `Command { std: "docker" "inspect" "094e35ed8998a4cfc79cf287fc136abbefe22971f70985878780a4c3cc6dbf50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "094e35ed8998a4cfc79cf287fc136abbefe22971f70985878780a4c3cc6dbf50", kill_on_drop: false }`
[INFO] [stdout] 094e35ed8998a4cfc79cf287fc136abbefe22971f70985878780a4c3cc6dbf50
[INFO] checking mime-rs-0.3.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate mime-rs 0.3.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate mime-rs 0.3.0 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 mime-rs 0.3.0
[INFO] finished tweaking crates.io crate mime-rs 0.3.0
[INFO] tweaked toml for crates.io crate mime-rs 0.3.0 written to /workspace/builds/worker-5-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 20 packages
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 588f1826bac203f183cac83792e69cb64c9c2b27a297b527005e00d6f5f2e036
[INFO] running `Command { std: "docker" "start" "-a" "588f1826bac203f183cac83792e69cb64c9c2b27a297b527005e00d6f5f2e036", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "588f1826bac203f183cac83792e69cb64c9c2b27a297b527005e00d6f5f2e036", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "588f1826bac203f183cac83792e69cb64c9c2b27a297b527005e00d6f5f2e036", kill_on_drop: false }`
[INFO] [stdout] 588f1826bac203f183cac83792e69cb64c9c2b27a297b527005e00d6f5f2e036
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] a7845776fbf69c6ea399f881d392851132ece409aff48f592ab27b3a6107b27c
[INFO] running `Command { std: "docker" "start" "-a" "a7845776fbf69c6ea399f881d392851132ece409aff48f592ab27b3a6107b27c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling scratch v1.0.7
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling cxxbridge-flags v1.0.120
[INFO] [stderr]    Compiling link-cplusplus v1.0.9
[INFO] [stderr]    Compiling cxx v1.0.120
[INFO] [stderr]    Compiling codespan-reporting v0.11.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling cxx-build v1.0.120
[INFO] [stderr]    Compiling cxxbridge-macro v1.0.120
[INFO] [stderr]    Compiling mime-rs v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: mime-rs@0.3.0: Compiler version doesn't include clang or GCC: "c++" "--version"
[INFO] [stderr] warning: mime-rs@0.3.0: Compiler version doesn't include clang or GCC: "c++" "--version"
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.78s
[INFO] running `Command { std: "docker" "inspect" "a7845776fbf69c6ea399f881d392851132ece409aff48f592ab27b3a6107b27c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7845776fbf69c6ea399f881d392851132ece409aff48f592ab27b3a6107b27c", kill_on_drop: false }`
[INFO] [stdout] a7845776fbf69c6ea399f881d392851132ece409aff48f592ab27b3a6107b27c