[INFO] fetching crate chronobreak_derive 0.1.0...
[INFO] checking chronobreak_derive-0.1.0 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate chronobreak_derive 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate chronobreak_derive 0.1.0 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chronobreak_derive 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate chronobreak_derive 0.1.0
[INFO] tweaked toml for crates.io crate chronobreak_derive 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded darling v0.12.3
[INFO] [stderr]   Downloaded darling_core v0.12.3
[INFO] [stderr]   Downloaded darling_macro v0.12.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a2bf3c028ce0a38927f94daf9b7a4fa95f5817086aea523bef89e8175904280a
[INFO] running `Command { std: "docker" "start" "-a" "a2bf3c028ce0a38927f94daf9b7a4fa95f5817086aea523bef89e8175904280a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2bf3c028ce0a38927f94daf9b7a4fa95f5817086aea523bef89e8175904280a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2bf3c028ce0a38927f94daf9b7a4fa95f5817086aea523bef89e8175904280a", kill_on_drop: false }`
[INFO] [stdout] a2bf3c028ce0a38927f94daf9b7a4fa95f5817086aea523bef89e8175904280a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] acd7a68c55a448db904654c017036d0988c03abd813b502a958b0e15a788ceac
[INFO] running `Command { std: "docker" "start" "-a" "acd7a68c55a448db904654c017036d0988c03abd813b502a958b0e15a788ceac", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.6
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking vec-arena v1.1.0
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking async-lock v2.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]     Checking syn v1.0.69
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking darling_core v0.12.3
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling darling_macro v0.12.3
[INFO] [stderr]     Checking polling v2.0.3
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking async-io v1.4.0
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking darling v0.12.3
[INFO] [stderr]     Checking chronobreak_derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking trybuild v1.0.42
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.30s
[INFO] running `Command { std: "docker" "inspect" "acd7a68c55a448db904654c017036d0988c03abd813b502a958b0e15a788ceac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acd7a68c55a448db904654c017036d0988c03abd813b502a958b0e15a788ceac", kill_on_drop: false }`
[INFO] [stdout] acd7a68c55a448db904654c017036d0988c03abd813b502a958b0e15a788ceac