[INFO] fetching crate futures_cbor_codec 0.2.0...
[INFO] checking futures_cbor_codec-0.2.0 against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] extracting crate futures_cbor_codec 0.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate futures_cbor_codec 0.2.0 on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures_cbor_codec 0.2.0
[INFO] finished tweaking crates.io crate futures_cbor_codec 0.2.0
[INFO] tweaked toml for crates.io crate futures_cbor_codec 0.2.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate futures_cbor_codec 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.6
[INFO] [stderr]   Downloaded ringbuf v0.2.1
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.6
[INFO] [stderr]   Downloaded futures_ringbuf v0.1.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 879fcd4c624998783ee2ff23d0aaf21bf699361f56fbaa983a5049bc2c13abd8
[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" "879fcd4c624998783ee2ff23d0aaf21bf699361f56fbaa983a5049bc2c13abd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "879fcd4c624998783ee2ff23d0aaf21bf699361f56fbaa983a5049bc2c13abd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "879fcd4c624998783ee2ff23d0aaf21bf699361f56fbaa983a5049bc2c13abd8", kill_on_drop: false }`
[INFO] [stdout] 879fcd4c624998783ee2ff23d0aaf21bf699361f56fbaa983a5049bc2c13abd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9dbac3ef35946a8dd3ab162315e6b44140aa872ee50051c2a99d7b4baf2da4b
[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" "d9dbac3ef35946a8dd3ab162315e6b44140aa872ee50051c2a99d7b4baf2da4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking futures-core v0.3.1
[INFO] [stderr]     Checking futures-sink v0.3.1
[INFO] [stderr]     Checking futures-io v0.3.1
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-task v0.3.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking half v1.4.0
[INFO] [stderr]     Checking bytes v0.5.3
[INFO] [stderr]     Checking ringbuf v0.2.1
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]     Checking serde_cbor v0.10.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling pin-project-internal v0.4.6
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]     Checking pin-project v0.4.6
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking futures-executor v0.3.1
[INFO] [stderr]     Checking futures v0.3.1
[INFO] [stderr]     Checking futures_codec v0.3.4
[INFO] [stderr]     Checking futures_ringbuf v0.1.7
[INFO] [stderr]     Checking futures_cbor_codec v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.49s
[INFO] running `Command { std: "docker" "inspect" "d9dbac3ef35946a8dd3ab162315e6b44140aa872ee50051c2a99d7b4baf2da4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9dbac3ef35946a8dd3ab162315e6b44140aa872ee50051c2a99d7b4baf2da4b", kill_on_drop: false }`
[INFO] [stdout] d9dbac3ef35946a8dd3ab162315e6b44140aa872ee50051c2a99d7b4baf2da4b