[INFO] fetching crate visiting_ref 0.2.0...
[INFO] checking visiting_ref-0.2.0 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate visiting_ref 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate visiting_ref 0.2.0 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate visiting_ref 0.2.0
[INFO] finished tweaking crates.io crate visiting_ref 0.2.0
[INFO] tweaked toml for crates.io crate visiting_ref 0.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6955ce03622d961fd51d2e9a40fe1d86988cc05d1ca8d951def2cd9a9088a3ab
[INFO] running `Command { std: "docker" "start" "-a" "6955ce03622d961fd51d2e9a40fe1d86988cc05d1ca8d951def2cd9a9088a3ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6955ce03622d961fd51d2e9a40fe1d86988cc05d1ca8d951def2cd9a9088a3ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6955ce03622d961fd51d2e9a40fe1d86988cc05d1ca8d951def2cd9a9088a3ab", kill_on_drop: false }`
[INFO] [stdout] 6955ce03622d961fd51d2e9a40fe1d86988cc05d1ca8d951def2cd9a9088a3ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcc429ada60391e749bedee760346b36aec7256e7c1c4a9e898e2f2a409caaa7
[INFO] running `Command { std: "docker" "start" "-a" "dcc429ada60391e749bedee760346b36aec7256e7c1c4a9e898e2f2a409caaa7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking visiting_ref v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.30s
[INFO] running `Command { std: "docker" "inspect" "dcc429ada60391e749bedee760346b36aec7256e7c1c4a9e898e2f2a409caaa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcc429ada60391e749bedee760346b36aec7256e7c1c4a9e898e2f2a409caaa7", kill_on_drop: false }`
[INFO] [stdout] dcc429ada60391e749bedee760346b36aec7256e7c1c4a9e898e2f2a409caaa7