[INFO] fetching crate hostess 0.2.6...
[INFO] crate hostess 0.2.6 is already in cache
[INFO] crate hostess 0.2.6 is already in cache
[INFO] crate hostess 0.2.6 is already in cache
[INFO] crate hostess 0.2.6 is already in cache
[INFO] crate hostess 0.2.6 is already in cache
[INFO] crate hostess 0.2.6 is already in cache
[INFO] crate hostess 0.2.6 is already in cache
[INFO] crate hostess 0.2.6 is already in cache
[INFO] crate hostess 0.2.6 is already in cache
[INFO] crate hostess 0.2.6 is already in cache
[INFO] crate hostess 0.2.6 is already in cache
[INFO] crate hostess 0.2.6 is already in cache
[INFO] crate hostess 0.2.6 is already in cache
[INFO] crate hostess 0.2.6 is already in cache
[INFO] checking hostess-0.2.6 against master#7308c22c6a8d77e82187e290e1f7459870e48d12 for pr-99447
[INFO] extracting crate hostess 0.2.6 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate hostess 0.2.6 on toolchain 7308c22c6a8d77e82187e290e1f7459870e48d12
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hostess 0.2.6
[INFO] finished tweaking crates.io crate hostess 0.2.6
[INFO] tweaked toml for crates.io crate hostess 0.2.6 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate hostess 0.2.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "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 structopt v0.3.7
[INFO] [stderr]   Downloaded pad v0.1.5
[INFO] [stderr]   Downloaded syn-mid v0.4.0
[INFO] [stderr]   Downloaded proc-macro-error-attr v0.4.3
[INFO] [stderr]   Downloaded rustversion v1.0.1
[INFO] [stderr]   Downloaded structopt-derive v0.4.0
[INFO] [stderr]   Downloaded yansi v0.5.0
[INFO] [stderr]   Downloaded proc-macro-error v0.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 826e1fcebeb7a587ff41a67a8b530cb78601db024bbc0191038dffe2c50953c2
[INFO] running `Command { std: "docker" "start" "-a" "826e1fcebeb7a587ff41a67a8b530cb78601db024bbc0191038dffe2c50953c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "826e1fcebeb7a587ff41a67a8b530cb78601db024bbc0191038dffe2c50953c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "826e1fcebeb7a587ff41a67a8b530cb78601db024bbc0191038dffe2c50953c2", kill_on_drop: false }`
[INFO] [stdout] 826e1fcebeb7a587ff41a67a8b530cb78601db024bbc0191038dffe2c50953c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80b0d214c77f5b10063f731a1ed4cfc0a28da7a802ecd6de7528175dbb1b77c7
[INFO] running `Command { std: "docker" "start" "-a" "80b0d214c77f5b10063f731a1ed4cfc0a28da7a802ecd6de7528175dbb1b77c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling libc v0.2.55
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking yansi v0.5.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking pad v0.1.5
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn-mid v0.4.0
[INFO] [stderr]    Compiling rustversion v1.0.1
[INFO] [stderr]    Compiling proc-macro-error v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.3
[INFO] [stderr]    Compiling structopt-derive v0.4.0
[INFO] [stderr]     Checking structopt v0.3.7
[INFO] [stderr]     Checking hostess v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.87s
[INFO] running `Command { std: "docker" "inspect" "80b0d214c77f5b10063f731a1ed4cfc0a28da7a802ecd6de7528175dbb1b77c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80b0d214c77f5b10063f731a1ed4cfc0a28da7a802ecd6de7528175dbb1b77c7", kill_on_drop: false }`
[INFO] [stdout] 80b0d214c77f5b10063f731a1ed4cfc0a28da7a802ecd6de7528175dbb1b77c7