[INFO] fetching crate tokio-serde 0.7.1...
[INFO] testing tokio-serde-0.7.1 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate tokio-serde 0.7.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tokio-serde 0.7.1 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tokio-serde 0.7.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate tokio-serde 0.7.1
[INFO] tweaked toml for crates.io crate tokio-serde 0.7.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate tokio-serde 0.7.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fac6b2e4685b276914ee8e9ee62d035c0d98eef884ea158603defb077015f8b7
[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" "fac6b2e4685b276914ee8e9ee62d035c0d98eef884ea158603defb077015f8b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fac6b2e4685b276914ee8e9ee62d035c0d98eef884ea158603defb077015f8b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fac6b2e4685b276914ee8e9ee62d035c0d98eef884ea158603defb077015f8b7", kill_on_drop: false }`
[INFO] [stdout] fac6b2e4685b276914ee8e9ee62d035c0d98eef884ea158603defb077015f8b7
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 632bb939ee3afb5dc0ac3c908565a3e3052481a7397fca28b1ba06922b568c78
[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" "632bb939ee3afb5dc0ac3c908565a3e3052481a7397fca28b1ba06922b568c78", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling bytes v0.6.0
[INFO] [stderr]    Compiling futures-core v0.3.7
[INFO] [stderr]    Compiling futures-sink v0.3.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling pin-project v1.0.1
[INFO] [stderr]    Compiling tokio-serde v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.39s
[INFO] running `Command { std: "docker" "inspect" "632bb939ee3afb5dc0ac3c908565a3e3052481a7397fca28b1ba06922b568c78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "632bb939ee3afb5dc0ac3c908565a3e3052481a7397fca28b1ba06922b568c78", kill_on_drop: false }`
[INFO] [stdout] 632bb939ee3afb5dc0ac3c908565a3e3052481a7397fca28b1ba06922b568c78
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f58c63ee27050e766ca464a5e35e07d1fbbe4731303f922d333a75d0c99bb68
[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" "8f58c63ee27050e766ca464a5e35e07d1fbbe4731303f922d333a75d0c99bb68", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling futures-io v0.3.7
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling arc-swap v0.4.7
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling impls v1.0.3
[INFO] [stderr]    Compiling instant v0.1.8
[INFO] [stderr]    Compiling lock_api v0.4.1
[INFO] [stderr]    Compiling futures-channel v0.3.7
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]    Compiling tokio-macros v0.3.1
[INFO] [stderr]    Compiling futures-task v0.3.7
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling signal-hook-registry v1.2.1
[INFO] [stderr]    Compiling mio v0.7.4
[INFO] [stderr]    Compiling parking_lot v0.11.0
[INFO] [stderr]    Compiling tokio v0.3.2
[INFO] [stderr]    Compiling futures-util v0.3.7
[INFO] [stderr]    Compiling futures-executor v0.3.7
[INFO] [stderr]    Compiling futures v0.3.7
[INFO] [stderr]    Compiling tokio-util v0.5.0
[INFO] [stderr]    Compiling tokio-serde v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 28.68s
[INFO] running `Command { std: "docker" "inspect" "8f58c63ee27050e766ca464a5e35e07d1fbbe4731303f922d333a75d0c99bb68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f58c63ee27050e766ca464a5e35e07d1fbbe4731303f922d333a75d0c99bb68", kill_on_drop: false }`
[INFO] [stdout] 8f58c63ee27050e766ca464a5e35e07d1fbbe4731303f922d333a75d0c99bb68
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5d147e112711bec0da771e08d5bd9dd3f5127821a8b03d0fa7898293f05ca133
[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" "5d147e112711bec0da771e08d5bd9dd3f5127821a8b03d0fa7898293f05ca133", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tokio_serde-300125e611126c66
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests tokio-serde
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - Deserializer (line 144) ... ok
[INFO] [stdout] test src/lib.rs - Serializer (line 72) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5d147e112711bec0da771e08d5bd9dd3f5127821a8b03d0fa7898293f05ca133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d147e112711bec0da771e08d5bd9dd3f5127821a8b03d0fa7898293f05ca133", kill_on_drop: false }`
[INFO] [stdout] 5d147e112711bec0da771e08d5bd9dd3f5127821a8b03d0fa7898293f05ca133