[INFO] fetching crate janus_messages 0.6.5...
[INFO] checking janus_messages-0.6.5 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate janus_messages 0.6.5 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate janus_messages 0.6.5 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 janus_messages 0.6.5
[INFO] finished tweaking crates.io crate janus_messages 0.6.5
[INFO] tweaked toml for crates.io crate janus_messages 0.6.5 written to /workspace/builds/worker-4-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 77 packages
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding prio v0.15.5 (latest: v0.16.2)
[INFO] [stderr]       Adding radium v0.7.0 (latest: v1.1.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding toml_edit v0.21.1 (latest: v0.22.9)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding winnow v0.5.40 (latest: v0.6.5)
[INFO] [stderr]       Adding wyz v0.5.1 (latest: v0.6.1)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded toml_edit v0.21.1
[INFO] [stderr]   Downloaded proc-macro-crate v3.1.0
[INFO] [stderr]   Downloaded prio v0.15.5
[INFO] [stderr]   Downloaded serde_test v1.0.176
[INFO] [stderr]   Downloaded num_enum_derive v0.7.2
[INFO] [stderr]   Downloaded num_enum v0.7.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c81390b5820184c6f6c4aa47a1327dbf33ce63afe6ec29e17d81e283a9676c07
[INFO] running `Command { std: "docker" "start" "-a" "c81390b5820184c6f6c4aa47a1327dbf33ce63afe6ec29e17d81e283a9676c07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c81390b5820184c6f6c4aa47a1327dbf33ce63afe6ec29e17d81e283a9676c07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c81390b5820184c6f6c4aa47a1327dbf33ce63afe6ec29e17d81e283a9676c07", kill_on_drop: false }`
[INFO] [stdout] c81390b5820184c6f6c4aa47a1327dbf33ce63afe6ec29e17d81e283a9676c07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2bbc5bc3b5b625ba982471c9372a59f95ca8f55678b7da339795d3d51f009a67
[INFO] running `Command { std: "docker" "start" "-a" "2bbc5bc3b5b625ba982471c9372a59f95ca8f55678b7da339795d3d51f009a67", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling fixed v1.27.0
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking half v2.4.0
[INFO] [stderr]     Checking bytemuck v1.15.0
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking fiat-crypto v0.2.7
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling toml_edit v0.21.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]    Compiling proc-macro-crate v3.1.0
[INFO] [stderr]    Compiling num_enum_derive v0.7.2
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking num_enum v0.7.2
[INFO] [stderr]     Checking serde_test v1.0.176
[INFO] [stderr]     Checking prio v0.15.5
[INFO] [stderr]     Checking janus_messages v0.6.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 40.35s
[INFO] running `Command { std: "docker" "inspect" "2bbc5bc3b5b625ba982471c9372a59f95ca8f55678b7da339795d3d51f009a67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bbc5bc3b5b625ba982471c9372a59f95ca8f55678b7da339795d3d51f009a67", kill_on_drop: false }`
[INFO] [stdout] 2bbc5bc3b5b625ba982471c9372a59f95ca8f55678b7da339795d3d51f009a67
[INFO] checking janus_messages-0.6.5 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate janus_messages 0.6.5 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate janus_messages 0.6.5 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 janus_messages 0.6.5
[INFO] finished tweaking crates.io crate janus_messages 0.6.5
[INFO] tweaked toml for crates.io crate janus_messages 0.6.5 written to /workspace/builds/worker-4-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 77 packages
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding prio v0.15.5 (latest: v0.16.2)
[INFO] [stderr]       Adding radium v0.7.0 (latest: v1.1.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding toml_edit v0.21.1 (latest: v0.22.9)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding winnow v0.5.40 (latest: v0.6.5)
[INFO] [stderr]       Adding wyz v0.5.1 (latest: v0.6.1)
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3c6a4cd40f40af56534e9429cb3a6a778a7497c8f63162e70fd26f45b26cc332
[INFO] running `Command { std: "docker" "start" "-a" "3c6a4cd40f40af56534e9429cb3a6a778a7497c8f63162e70fd26f45b26cc332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c6a4cd40f40af56534e9429cb3a6a778a7497c8f63162e70fd26f45b26cc332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c6a4cd40f40af56534e9429cb3a6a778a7497c8f63162e70fd26f45b26cc332", kill_on_drop: false }`
[INFO] [stdout] 3c6a4cd40f40af56534e9429cb3a6a778a7497c8f63162e70fd26f45b26cc332
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a953fee350547c40c7165c1e9f07b0439ac9178ec86ca0515b8361533ab4213d
[INFO] running `Command { std: "docker" "start" "-a" "a953fee350547c40c7165c1e9f07b0439ac9178ec86ca0515b8361533ab4213d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling fixed v1.27.0
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking half v2.4.0
[INFO] [stderr]     Checking bytemuck v1.15.0
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]     Checking fiat-crypto v0.2.7
[INFO] [stderr]     Checking getrandom v0.2.12
[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 num-integer v0.1.46
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]    Compiling toml_edit v0.21.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]    Compiling proc-macro-crate v3.1.0
[INFO] [stderr]    Compiling num_enum_derive v0.7.2
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking num_enum v0.7.2
[INFO] [stderr]     Checking serde_test v1.0.176
[INFO] [stderr]     Checking prio v0.15.5
[INFO] [stderr]     Checking janus_messages v0.6.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 40.95s
[INFO] running `Command { std: "docker" "inspect" "a953fee350547c40c7165c1e9f07b0439ac9178ec86ca0515b8361533ab4213d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a953fee350547c40c7165c1e9f07b0439ac9178ec86ca0515b8361533ab4213d", kill_on_drop: false }`
[INFO] [stdout] a953fee350547c40c7165c1e9f07b0439ac9178ec86ca0515b8361533ab4213d