[INFO] fetching crate shkeleton 0.11.3...
[INFO] checking shkeleton-0.11.3 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate shkeleton 0.11.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate shkeleton 0.11.3 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shkeleton 0.11.3
[INFO] finished tweaking crates.io crate shkeleton 0.11.3
[INFO] tweaked toml for crates.io crate shkeleton 0.11.3 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded array_tool v1.0.3
[INFO] [stderr]   Downloaded dirs-sys v0.3.6
[INFO] [stderr]   Downloaded crossbeam v0.8.0
[INFO] [stderr]   Downloaded derive_deref v1.1.1
[INFO] [stderr]   Downloaded fstrings-proc-macro v0.2.3
[INFO] [stderr]   Downloaded fstrings v0.2.3
[INFO] [stderr]   Downloaded dirs v3.0.2
[INFO] [stderr]   Downloaded fern v0.6.0
[INFO] [stderr]   Downloaded sherr v0.4.1
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 14f7251da507efb00578ea0e1966a6ad118d93202a3c1222603a0d0c218a9fc1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "14f7251da507efb00578ea0e1966a6ad118d93202a3c1222603a0d0c218a9fc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14f7251da507efb00578ea0e1966a6ad118d93202a3c1222603a0d0c218a9fc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14f7251da507efb00578ea0e1966a6ad118d93202a3c1222603a0d0c218a9fc1", kill_on_drop: false }`
[INFO] [stdout] 14f7251da507efb00578ea0e1966a6ad118d93202a3c1222603a0d0c218a9fc1
[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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f086983ee7ab6cd7a7361298e7f2b43662a02d097ae76e7366472c521343d19b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f086983ee7ab6cd7a7361298e7f2b43662a02d097ae76e7366472c521343d19b", kill_on_drop: false }`
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking array_tool v1.0.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling backtrace v0.3.58
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking sherr v0.4.1
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]    Compiling fehler-macros v1.0.0
[INFO] [stderr]    Compiling fstrings-proc-macro v0.2.3
[INFO] [stderr]    Compiling derive_deref v1.1.1
[INFO] [stderr]    Compiling derive_more v0.99.13
[INFO] [stderr]     Checking fstrings v0.2.3
[INFO] [stderr]     Checking fehler v1.0.0
[INFO] [stderr]     Checking shkeleton v0.11.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.38s
[INFO] running `Command { std: "docker" "inspect" "f086983ee7ab6cd7a7361298e7f2b43662a02d097ae76e7366472c521343d19b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f086983ee7ab6cd7a7361298e7f2b43662a02d097ae76e7366472c521343d19b", kill_on_drop: false }`
[INFO] [stdout] f086983ee7ab6cd7a7361298e7f2b43662a02d097ae76e7366472c521343d19b