[INFO] fetching crate krep 0.1.1...
[INFO] checking krep-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate krep 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate krep 0.1.1 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 krep 0.1.1
[INFO] finished tweaking crates.io crate krep 0.1.1
[INFO] tweaked toml for crates.io crate krep 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate krep 0.1.1 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.86
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.86
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.86
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.86
[INFO] [stderr]   Downloaded once_cell v1.17.1
[INFO] [stderr]   Downloaded js-sys v0.3.63
[INFO] [stderr]   Downloaded syn v2.0.16
[INFO] [stderr]   Downloaded bumpalo v3.12.2
[INFO] [stderr]   Downloaded libc v0.2.144
[INFO] [stderr]   Downloaded unicode-ident v1.0.8
[INFO] [stderr]   Downloaded doe v0.1.32
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.86
[INFO] [stderr]   Downloaded proc-macro2 v1.0.58
[INFO] [stderr]   Downloaded quote v1.0.27
[INFO] [stderr]   Downloaded chrono v0.4.24
[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] 1f729728569911ee40ae674578ce2ece32b4da6a87082ea8a5f0d0ed6b994adc
[INFO] running `Command { std: "docker" "start" "-a" "1f729728569911ee40ae674578ce2ece32b4da6a87082ea8a5f0d0ed6b994adc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f729728569911ee40ae674578ce2ece32b4da6a87082ea8a5f0d0ed6b994adc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f729728569911ee40ae674578ce2ece32b4da6a87082ea8a5f0d0ed6b994adc", kill_on_drop: false }`
[INFO] [stdout] 1f729728569911ee40ae674578ce2ece32b4da6a87082ea8a5f0d0ed6b994adc
[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] b76203c9b461c24dc98e9b1999eb42a35920e45e4126c4a80e1fe08f96652d6d
[INFO] running `Command { std: "docker" "start" "-a" "b76203c9b461c24dc98e9b1999eb42a35920e45e4126c4a80e1fe08f96652d6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking iana-time-zone v0.1.56
[INFO] [stderr]     Checking regex-syntax v0.7.1
[INFO] [stderr]     Checking aho-corasick v1.0.1
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking chrono v0.4.24
[INFO] [stderr]     Checking regex v1.8.1
[INFO] [stderr]     Checking doe v0.1.32
[INFO] [stderr]     Checking krep v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.38s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: doe v0.1.32
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "b76203c9b461c24dc98e9b1999eb42a35920e45e4126c4a80e1fe08f96652d6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b76203c9b461c24dc98e9b1999eb42a35920e45e4126c4a80e1fe08f96652d6d", kill_on_drop: false }`
[INFO] [stdout] b76203c9b461c24dc98e9b1999eb42a35920e45e4126c4a80e1fe08f96652d6d
[INFO] checking krep-0.1.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate krep 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate krep 0.1.1 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 krep 0.1.1
[INFO] finished tweaking crates.io crate krep 0.1.1
[INFO] tweaked toml for crates.io crate krep 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate krep 0.1.1 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] [stderr]     Blocking waiting for file lock on package cache
[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] 178fc00c0d40ba5242ff5ccce26d6c9eb4d53bf72150350008d2f899454592f9
[INFO] running `Command { std: "docker" "start" "-a" "178fc00c0d40ba5242ff5ccce26d6c9eb4d53bf72150350008d2f899454592f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "178fc00c0d40ba5242ff5ccce26d6c9eb4d53bf72150350008d2f899454592f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "178fc00c0d40ba5242ff5ccce26d6c9eb4d53bf72150350008d2f899454592f9", kill_on_drop: false }`
[INFO] [stdout] 178fc00c0d40ba5242ff5ccce26d6c9eb4d53bf72150350008d2f899454592f9
[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] 3d349764642db249804b8173ee0337754e2767f06767c9fe7bc79c0dbc4fb9fe
[INFO] running `Command { std: "docker" "start" "-a" "3d349764642db249804b8173ee0337754e2767f06767c9fe7bc79c0dbc4fb9fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking iana-time-zone v0.1.56
[INFO] [stderr]     Checking regex-syntax v0.7.1
[INFO] [stderr]     Checking aho-corasick v1.0.1
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking chrono v0.4.24
[INFO] [stderr]     Checking regex v1.8.1
[INFO] [stderr]     Checking doe v0.1.32
[INFO] [stderr]     Checking krep v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.18s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: doe v0.1.32
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "3d349764642db249804b8173ee0337754e2767f06767c9fe7bc79c0dbc4fb9fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d349764642db249804b8173ee0337754e2767f06767c9fe7bc79c0dbc4fb9fe", kill_on_drop: false }`
[INFO] [stdout] 3d349764642db249804b8173ee0337754e2767f06767c9fe7bc79c0dbc4fb9fe