[INFO] fetching crate tars-core 0.1.0...
[INFO] checking tars-core-0.1.0 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate tars-core 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate tars-core 0.1.0 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tars-core 0.1.0
[INFO] finished tweaking crates.io crate tars-core 0.1.0
[INFO] tweaked toml for crates.io crate tars-core 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48abf1d7f8b775feb52b2c74967234c00f1ea6500a6899a8c045db3a9ca7819c
[INFO] running `Command { std: "docker" "start" "-a" "48abf1d7f8b775feb52b2c74967234c00f1ea6500a6899a8c045db3a9ca7819c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48abf1d7f8b775feb52b2c74967234c00f1ea6500a6899a8c045db3a9ca7819c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48abf1d7f8b775feb52b2c74967234c00f1ea6500a6899a8c045db3a9ca7819c", kill_on_drop: false }`
[INFO] [stdout] 48abf1d7f8b775feb52b2c74967234c00f1ea6500a6899a8c045db3a9ca7819c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51a7b9a25347212b6c252398c89c74faac2cd5c66e92c238b5c90a19b7f9bcea
[INFO] running `Command { std: "docker" "start" "-a" "51a7b9a25347212b6c252398c89c74faac2cd5c66e92c238b5c90a19b7f9bcea", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking tars-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.95s
[INFO] running `Command { std: "docker" "inspect" "51a7b9a25347212b6c252398c89c74faac2cd5c66e92c238b5c90a19b7f9bcea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51a7b9a25347212b6c252398c89c74faac2cd5c66e92c238b5c90a19b7f9bcea", kill_on_drop: false }`
[INFO] [stdout] 51a7b9a25347212b6c252398c89c74faac2cd5c66e92c238b5c90a19b7f9bcea