[INFO] fetching crate flexi_logger 0.23.1...
[INFO] checking flexi_logger-0.23.1 against master#8c6ce6b91b172f77c795a74bfeaf74b865146b3f for pr-101345
[INFO] extracting crate flexi_logger 0.23.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate flexi_logger 0.23.1 on toolchain 8c6ce6b91b172f77c795a74bfeaf74b865146b3f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8c6ce6b91b172f77c795a74bfeaf74b865146b3f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flexi_logger 0.23.1
[INFO] finished tweaking crates.io crate flexi_logger 0.23.1
[INFO] tweaked toml for crates.io crate flexi_logger 0.23.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate flexi_logger 0.23.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8c6ce6b91b172f77c795a74bfeaf74b865146b3f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fsevent-sys v2.0.1
[INFO] [stderr]   Downloaded mio-extras v2.0.6
[INFO] [stderr]   Downloaded notify v4.0.17
[INFO] [stderr]   Downloaded fsevent v0.4.0
[INFO] [stderr]   Downloaded inotify-sys v0.1.5
[INFO] [stderr]   Downloaded inotify v0.7.1
[INFO] [stderr]   Downloaded version-sync v0.9.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+8c6ce6b91b172f77c795a74bfeaf74b865146b3f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e806a02c34cec50fd5785d661de42dd63cd11cae76aaa51bf79fb4daeb818717
[INFO] running `Command { std: "docker" "start" "-a" "e806a02c34cec50fd5785d661de42dd63cd11cae76aaa51bf79fb4daeb818717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e806a02c34cec50fd5785d661de42dd63cd11cae76aaa51bf79fb4daeb818717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e806a02c34cec50fd5785d661de42dd63cd11cae76aaa51bf79fb4daeb818717", kill_on_drop: false }`
[INFO] [stdout] e806a02c34cec50fd5785d661de42dd63cd11cae76aaa51bf79fb4daeb818717
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+8c6ce6b91b172f77c795a74bfeaf74b865146b3f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3dd9a47a628913512684eb1799bb07071370deba41c94f0a0bb1df5daae9e50f
[INFO] running `Command { std: "docker" "start" "-a" "3dd9a47a628913512684eb1799bb07071370deba41c94f0a0bb1df5daae9e50f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling semver v1.0.13
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling rustversion v1.0.9
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking unicode-normalization v0.1.21
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.3.14
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]    Compiling thiserror-impl v1.0.33
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking version-sync v0.9.4
[INFO] [stderr]     Checking thiserror v1.0.33
[INFO] [stderr]     Checking flexi_logger v0.23.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.74s
[INFO] running `Command { std: "docker" "inspect" "3dd9a47a628913512684eb1799bb07071370deba41c94f0a0bb1df5daae9e50f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dd9a47a628913512684eb1799bb07071370deba41c94f0a0bb1df5daae9e50f", kill_on_drop: false }`
[INFO] [stdout] 3dd9a47a628913512684eb1799bb07071370deba41c94f0a0bb1df5daae9e50f