[INFO] fetching crate cleverhouse-by-akrutikov 0.1.8...
[INFO] checking cleverhouse-by-akrutikov-0.1.8 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate cleverhouse-by-akrutikov 0.1.8 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate cleverhouse-by-akrutikov 0.1.8 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 cleverhouse-by-akrutikov 0.1.8
[INFO] finished tweaking crates.io crate cleverhouse-by-akrutikov 0.1.8
[INFO] tweaked toml for crates.io crate cleverhouse-by-akrutikov 0.1.8 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate cleverhouse-by-akrutikov 0.1.8 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]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.133
[INFO] [stderr]   Downloaded serde_json v1.0.74
[INFO] [stderr]   Downloaded syn v1.0.84
[INFO] [stderr]   Downloaded tokio v1.16.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 44a6dd85e8d19d44584737fa89c6c58c93185480322a60a89124290fa82cb412
[INFO] running `Command { std: "docker" "start" "-a" "44a6dd85e8d19d44584737fa89c6c58c93185480322a60a89124290fa82cb412", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44a6dd85e8d19d44584737fa89c6c58c93185480322a60a89124290fa82cb412", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44a6dd85e8d19d44584737fa89c6c58c93185480322a60a89124290fa82cb412", kill_on_drop: false }`
[INFO] [stdout] 44a6dd85e8d19d44584737fa89c6c58c93185480322a60a89124290fa82cb412
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] f4e63eff3c92f356942a9bd5fb727bf25943c868ab9fed2a7c434cfa2ff3f057
[INFO] running `Command { std: "docker" "start" "-a" "f4e63eff3c92f356942a9bd5fb727bf25943c868ab9fed2a7c434cfa2ff3f057", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling serde_json v1.0.74
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]     Checking tokio v1.16.1
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking cleverhouse-by-akrutikov v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.13s
[INFO] running `Command { std: "docker" "inspect" "f4e63eff3c92f356942a9bd5fb727bf25943c868ab9fed2a7c434cfa2ff3f057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4e63eff3c92f356942a9bd5fb727bf25943c868ab9fed2a7c434cfa2ff3f057", kill_on_drop: false }`
[INFO] [stdout] f4e63eff3c92f356942a9bd5fb727bf25943c868ab9fed2a7c434cfa2ff3f057
[INFO] checking cleverhouse-by-akrutikov-0.1.8 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate cleverhouse-by-akrutikov 0.1.8 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate cleverhouse-by-akrutikov 0.1.8 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 cleverhouse-by-akrutikov 0.1.8
[INFO] finished tweaking crates.io crate cleverhouse-by-akrutikov 0.1.8
[INFO] tweaked toml for crates.io crate cleverhouse-by-akrutikov 0.1.8 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate cleverhouse-by-akrutikov 0.1.8 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] eed8d7bb5c96b12942be7787e7959b1ae673f842e7f4bb59df4b59c251d95211
[INFO] running `Command { std: "docker" "start" "-a" "eed8d7bb5c96b12942be7787e7959b1ae673f842e7f4bb59df4b59c251d95211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eed8d7bb5c96b12942be7787e7959b1ae673f842e7f4bb59df4b59c251d95211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eed8d7bb5c96b12942be7787e7959b1ae673f842e7f4bb59df4b59c251d95211", kill_on_drop: false }`
[INFO] [stdout] eed8d7bb5c96b12942be7787e7959b1ae673f842e7f4bb59df4b59c251d95211
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] b612b22c50d0b092678c57a46b010e3ee53458053a273a4cdf2450e9e47befb5
[INFO] running `Command { std: "docker" "start" "-a" "b612b22c50d0b092678c57a46b010e3ee53458053a273a4cdf2450e9e47befb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling serde_json v1.0.74
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]     Checking tokio v1.16.1
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking cleverhouse-by-akrutikov v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.18s
[INFO] running `Command { std: "docker" "inspect" "b612b22c50d0b092678c57a46b010e3ee53458053a273a4cdf2450e9e47befb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b612b22c50d0b092678c57a46b010e3ee53458053a273a4cdf2450e9e47befb5", kill_on_drop: false }`
[INFO] [stdout] b612b22c50d0b092678c57a46b010e3ee53458053a273a4cdf2450e9e47befb5