[INFO] fetching crate reserde 0.0.1...
[INFO] checking reserde-0.0.1 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate reserde 0.0.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate reserde 0.0.1 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reserde 0.0.1
[INFO] finished tweaking crates.io crate reserde 0.0.1
[INFO] tweaked toml for crates.io crate reserde 0.0.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate reserde 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded argh_derive v0.1.1
[INFO] [stderr]   Downloaded smartstring v0.2.3
[INFO] [stderr]   Downloaded linkme-impl v0.2.2
[INFO] [stderr]   Downloaded enum_properties v0.2.1
[INFO] [stderr]   Downloaded serde_bencode v0.2.2
[INFO] [stderr]   Downloaded serde_taml v0.0.1
[INFO] [stderr]   Downloaded strum_macros v0.19.2
[INFO] [stderr]   Downloaded try_match v0.2.2
[INFO] [stderr]   Downloaded strum v0.19.2
[INFO] [stderr]   Downloaded serde_yaml v0.8.13
[INFO] [stderr]   Downloaded argh_shared v0.1.1
[INFO] [stderr]   Downloaded gnaw v0.0.1
[INFO] [stderr]   Downloaded debugless-unwrap v0.0.1
[INFO] [stderr]   Downloaded argh v0.1.3
[INFO] [stderr]   Downloaded linkme v0.2.2
[INFO] [stderr]   Downloaded taml v0.0.1
[INFO] [stderr]   Downloaded lazy-transform-str v0.0.1
[INFO] [stderr]   Downloaded try_match_inner v0.2.0
[INFO] [stderr]   Downloaded cervine v0.0.2
[INFO] [stderr]   Downloaded serde-detach v0.0.1
[INFO] [stderr]   Downloaded serde-object v0.0.0-alpha.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a41dfc9ab4312a824f45a23bd5847a460dfab95f0ed99e75952761ed4db41dc
[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" "0a41dfc9ab4312a824f45a23bd5847a460dfab95f0ed99e75952761ed4db41dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a41dfc9ab4312a824f45a23bd5847a460dfab95f0ed99e75952761ed4db41dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a41dfc9ab4312a824f45a23bd5847a460dfab95f0ed99e75952761ed4db41dc", kill_on_drop: false }`
[INFO] [stdout] 0a41dfc9ab4312a824f45a23bd5847a460dfab95f0ed99e75952761ed4db41dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3d1eb91fe5faf3c5e54f1a3b98bedfcdbdfe51e2297f37b392a66e5bee70b7b
[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" "f3d1eb91fe5faf3c5e54f1a3b98bedfcdbdfe51e2297f37b392a66e5bee70b7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling beef v0.4.4
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking cervine v0.0.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking gnaw v0.0.1
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]    Compiling argh_shared v0.1.1
[INFO] [stderr]     Checking debugless-unwrap v0.0.1
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking enum_properties v0.2.1
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking smartstring v0.2.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]     Checking lazy-transform-str v0.0.1
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking serde-detach v0.0.1
[INFO] [stderr]     Checking quick-xml v0.18.1
[INFO] [stderr]     Checking serde_bencode v0.2.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling try_match_inner v0.2.0
[INFO] [stderr]    Compiling linkme-impl v0.2.2
[INFO] [stderr]    Compiling logos-derive v0.11.5
[INFO] [stderr]    Compiling argh_derive v0.1.1
[INFO] [stderr]    Compiling strum_macros v0.19.2
[INFO] [stderr]     Checking linkme v0.2.2
[INFO] [stderr]     Checking try_match v0.2.2
[INFO] [stderr]     Checking serde-object v0.0.0-alpha.0
[INFO] [stdout] error: expected `,`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-object-0.0.0-alpha.0/src/lib.rs:825:44
[INFO] [stdout]     |
[INFO] [stdout] 825 |                 let key = try_match!(Object::DualVariantKey { name, index } = self_).unwrap();
[INFO] [stdout]     |                                            ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde-object`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f3d1eb91fe5faf3c5e54f1a3b98bedfcdbdfe51e2297f37b392a66e5bee70b7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3d1eb91fe5faf3c5e54f1a3b98bedfcdbdfe51e2297f37b392a66e5bee70b7b", kill_on_drop: false }`
[INFO] [stdout] f3d1eb91fe5faf3c5e54f1a3b98bedfcdbdfe51e2297f37b392a66e5bee70b7b