[INFO] fetching crate wither_derive 0.9.0-alpha.2...
[INFO] checking wither_derive-0.9.0-alpha.2 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] extracting crate wither_derive 0.9.0-alpha.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate wither_derive 0.9.0-alpha.2 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wither_derive 0.9.0-alpha.2
[INFO] finished tweaking crates.io crate wither_derive 0.9.0-alpha.2
[INFO] tweaked toml for crates.io crate wither_derive 0.9.0-alpha.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 274be3efe8edc9609cf3ddf02675914cbcaeac84c98263ee1809c35f9c889e46
[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" "274be3efe8edc9609cf3ddf02675914cbcaeac84c98263ee1809c35f9c889e46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "274be3efe8edc9609cf3ddf02675914cbcaeac84c98263ee1809c35f9c889e46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "274be3efe8edc9609cf3ddf02675914cbcaeac84c98263ee1809c35f9c889e46", kill_on_drop: false }`
[INFO] [stdout] 274be3efe8edc9609cf3ddf02675914cbcaeac84c98263ee1809c35f9c889e46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59d5d924831e67d79afeb9570fa6b76d786dd3a5c954ffa303c26bcd465aaab2
[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" "59d5d924831e67d79afeb9570fa6b76d786dd3a5c954ffa303c26bcd465aaab2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking strsim v0.9.3
[INFO] [stderr]    Compiling trybuild v1.0.40
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking quote v1.0.8
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking Inflector v0.11.4
[INFO] [stderr]     Checking darling_core v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking darling v0.10.2
[INFO] [stderr]     Checking serde v1.0.123
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking serde_json v1.0.62
[INFO] [stderr]     Checking wither_derive v0.9.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "59d5d924831e67d79afeb9570fa6b76d786dd3a5c954ffa303c26bcd465aaab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59d5d924831e67d79afeb9570fa6b76d786dd3a5c954ffa303c26bcd465aaab2", kill_on_drop: false }`
[INFO] [stdout] 59d5d924831e67d79afeb9570fa6b76d786dd3a5c954ffa303c26bcd465aaab2