[INFO] fetching crate osc_address_derive 0.2.2...
[INFO] checking osc_address_derive-0.2.2 against master#da897dfb6daa268a965d2d73620316ba56020a19 for pr-76219
[INFO] extracting crate osc_address_derive 0.2.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate osc_address_derive 0.2.2 on toolchain da897dfb6daa268a965d2d73620316ba56020a19
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate osc_address_derive 0.2.2
[INFO] finished tweaking crates.io crate osc_address_derive 0.2.2
[INFO] tweaked toml for crates.io crate osc_address_derive 0.2.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc2aff6b05d995cedcadd4498ede6eedbe2be8a3c357ec1581ef0fc54171305f
[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" "cc2aff6b05d995cedcadd4498ede6eedbe2be8a3c357ec1581ef0fc54171305f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc2aff6b05d995cedcadd4498ede6eedbe2be8a3c357ec1581ef0fc54171305f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc2aff6b05d995cedcadd4498ede6eedbe2be8a3c357ec1581ef0fc54171305f", kill_on_drop: false }`
[INFO] [stdout] cc2aff6b05d995cedcadd4498ede6eedbe2be8a3c357ec1581ef0fc54171305f
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2d809be4dec4fa3b174505f8e9b6eeba0f48054d2897bbca6020cca7dd5a00c
[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" "c2d809be4dec4fa3b174505f8e9b6eeba0f48054d2897bbca6020cca7dd5a00c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.20
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking synom v0.11.3
[INFO] [stderr]     Checking syn v0.11.11
[INFO] [stderr]     Checking serde_osc v0.4.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking osc_address_derive v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]    --> src/lib.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 | #![feature(conservative_impl_trait)]
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]    --> src/lib.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 | #![feature(conservative_impl_trait)]
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking osc_address v0.2.2
[INFO] [stdout] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]    --> src/lib.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 | #![feature(conservative_impl_trait)]
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.00s
[INFO] running `Command { std: "docker" "inspect" "c2d809be4dec4fa3b174505f8e9b6eeba0f48054d2897bbca6020cca7dd5a00c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2d809be4dec4fa3b174505f8e9b6eeba0f48054d2897bbca6020cca7dd5a00c", kill_on_drop: false }`
[INFO] [stdout] c2d809be4dec4fa3b174505f8e9b6eeba0f48054d2897bbca6020cca7dd5a00c