[INFO] fetching crate shellac-json 0.2.0...
[INFO] checking shellac-json-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate shellac-json 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate shellac-json 0.2.0 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 shellac-json 0.2.0
[INFO] finished tweaking crates.io crate shellac-json 0.2.0
[INFO] tweaked toml for crates.io crate shellac-json 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate shellac-json 0.2.0 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 capnpc v0.10.1
[INFO] [stderr]   Downloaded shellac-codec v0.2.0
[INFO] [stderr]   Downloaded serde v1.0.101
[INFO] [stderr]   Downloaded ryu v1.0.0
[INFO] [stderr]   Downloaded capnp v0.10.3
[INFO] [stderr]   Downloaded proc-macro2 v1.0.5
[INFO] [stderr]   Downloaded syn v1.0.5
[INFO] [stderr]   Downloaded serde_derive v1.0.101
[INFO] [stderr]   Downloaded unicode-segmentation v1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 169d10f3c57cba2b188bf3ad72e5ab2cdc3a7b68077de4abc4fd2d0cb42abd04
[INFO] running `Command { std: "docker" "start" "-a" "169d10f3c57cba2b188bf3ad72e5ab2cdc3a7b68077de4abc4fd2d0cb42abd04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "169d10f3c57cba2b188bf3ad72e5ab2cdc3a7b68077de4abc4fd2d0cb42abd04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "169d10f3c57cba2b188bf3ad72e5ab2cdc3a7b68077de4abc4fd2d0cb42abd04", kill_on_drop: false }`
[INFO] [stdout] 169d10f3c57cba2b188bf3ad72e5ab2cdc3a7b68077de4abc4fd2d0cb42abd04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 89c4aae1cec5a39437e37c48993a809d98b89c21799d0964f9394bd7ffc8c36e
[INFO] running `Command { std: "docker" "start" "-a" "89c4aae1cec5a39437e37c48993a809d98b89c21799d0964f9394bd7ffc8c36e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling capnp v0.10.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling capnpc v0.10.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling shellac-codec v0.2.0
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking shellac-json v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.57s
[INFO] running `Command { std: "docker" "inspect" "89c4aae1cec5a39437e37c48993a809d98b89c21799d0964f9394bd7ffc8c36e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89c4aae1cec5a39437e37c48993a809d98b89c21799d0964f9394bd7ffc8c36e", kill_on_drop: false }`
[INFO] [stdout] 89c4aae1cec5a39437e37c48993a809d98b89c21799d0964f9394bd7ffc8c36e
[INFO] checking shellac-json-0.2.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate shellac-json 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate shellac-json 0.2.0 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 shellac-json 0.2.0
[INFO] finished tweaking crates.io crate shellac-json 0.2.0
[INFO] tweaked toml for crates.io crate shellac-json 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate shellac-json 0.2.0 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b365eeb1164d1ac560baa2dd329a5cd9a13e6cfeefc563216b86a42a08e2d8fa
[INFO] running `Command { std: "docker" "start" "-a" "b365eeb1164d1ac560baa2dd329a5cd9a13e6cfeefc563216b86a42a08e2d8fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b365eeb1164d1ac560baa2dd329a5cd9a13e6cfeefc563216b86a42a08e2d8fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b365eeb1164d1ac560baa2dd329a5cd9a13e6cfeefc563216b86a42a08e2d8fa", kill_on_drop: false }`
[INFO] [stdout] b365eeb1164d1ac560baa2dd329a5cd9a13e6cfeefc563216b86a42a08e2d8fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] fa9b2db6bd9328b4b33d83ee8638cc7985773770c77378309b5d24fef5ef635e
[INFO] running `Command { std: "docker" "start" "-a" "fa9b2db6bd9328b4b33d83ee8638cc7985773770c77378309b5d24fef5ef635e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling capnp v0.10.3
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling capnpc v0.10.1
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling shellac-codec v0.2.0
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking shellac-json v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.82s
[INFO] running `Command { std: "docker" "inspect" "fa9b2db6bd9328b4b33d83ee8638cc7985773770c77378309b5d24fef5ef635e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa9b2db6bd9328b4b33d83ee8638cc7985773770c77378309b5d24fef5ef635e", kill_on_drop: false }`
[INFO] [stdout] fa9b2db6bd9328b4b33d83ee8638cc7985773770c77378309b5d24fef5ef635e