[INFO] fetching crate assert_matches 1.5.0...
[INFO] checking assert_matches-1.5.0 against master#020bbe46bdf613c0b8211984eaa8e5fe97d6c92d for pr-122960
[INFO] extracting crate assert_matches 1.5.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate assert_matches 1.5.0 on toolchain 020bbe46bdf613c0b8211984eaa8e5fe97d6c92d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate assert_matches 1.5.0
[INFO] finished tweaking crates.io crate assert_matches 1.5.0
[INFO] tweaked toml for crates.io crate assert_matches 1.5.0 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" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "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-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" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db38d891777ee597ed39498ede5fd97d35efa2e1ccc43b2afc09e5fe40a8928c
[INFO] running `Command { std: "docker" "start" "-a" "db38d891777ee597ed39498ede5fd97d35efa2e1ccc43b2afc09e5fe40a8928c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db38d891777ee597ed39498ede5fd97d35efa2e1ccc43b2afc09e5fe40a8928c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db38d891777ee597ed39498ede5fd97d35efa2e1ccc43b2afc09e5fe40a8928c", kill_on_drop: false }`
[INFO] [stdout] db38d891777ee597ed39498ede5fd97d35efa2e1ccc43b2afc09e5fe40a8928c
[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" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7545880b105b021339c0d0661a2e9f54cb7f037c0f8a8c9d7271fcb30fd07e6b
[INFO] running `Command { std: "docker" "start" "-a" "7545880b105b021339c0d0661a2e9f54cb7f037c0f8a8c9d7271fcb30fd07e6b", kill_on_drop: false }`
[INFO] [stderr]     Checking assert_matches v1.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "7545880b105b021339c0d0661a2e9f54cb7f037c0f8a8c9d7271fcb30fd07e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7545880b105b021339c0d0661a2e9f54cb7f037c0f8a8c9d7271fcb30fd07e6b", kill_on_drop: false }`
[INFO] [stdout] 7545880b105b021339c0d0661a2e9f54cb7f037c0f8a8c9d7271fcb30fd07e6b