[INFO] fetching crate xtra 0.5.0-rc.1...
[INFO] checking xtra-0.5.0-rc.1 against try#4a23c45c7893f1416456144e3883cc48ea91722e for pr-82322
[INFO] extracting crate xtra 0.5.0-rc.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate xtra 0.5.0-rc.1 on toolchain 4a23c45c7893f1416456144e3883cc48ea91722e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xtra 0.5.0-rc.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate xtra 0.5.0-rc.1
[INFO] tweaked toml for crates.io crate xtra 0.5.0-rc.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate xtra 0.5.0-rc.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "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 async-global-executor v1.4.3
[INFO] [stderr]   Downloaded async-fs v1.5.0
[INFO] [stderr]   Downloaded smol v1.2.4
[INFO] [stderr]   Downloaded lock_api v0.4.1
[INFO] [stderr]   Downloaded spin v0.7.0
[INFO] [stderr]   Downloaded pin-project v1.0.1
[INFO] [stderr]   Downloaded instant v0.1.8
[INFO] [stderr]   Downloaded futures-lite v1.11.2
[INFO] [stderr]   Downloaded async-trait v0.1.41
[INFO] [stderr]   Downloaded async-std v1.8.0
[INFO] [stderr]   Downloaded pin-project-internal v1.0.1
[INFO] [stderr]   Downloaded smol-potat-macro v0.5.0
[INFO] [stderr]   Downloaded generator v0.6.23
[INFO] [stderr]   Downloaded smol-potat v1.1.0
[INFO] [stderr]   Downloaded spinny v0.2.1
[INFO] [stderr]   Downloaded cc v1.0.62
[INFO] [stderr]   Downloaded flume v0.10.1
[INFO] [stderr]   Downloaded async-net v1.5.0
[INFO] [stderr]   Downloaded pollster v0.2.0
[INFO] [stderr]   Downloaded async-io v1.2.0
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.18
[INFO] [stderr]   Downloaded signal-hook-registry v1.2.2
[INFO] [stderr]   Downloaded async-process v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f6212b3aacc07b12917662b9c5f08182e5fe7b3aa20d000105cf2b60637dc4d
[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" "0f6212b3aacc07b12917662b9c5f08182e5fe7b3aa20d000105cf2b60637dc4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f6212b3aacc07b12917662b9c5f08182e5fe7b3aa20d000105cf2b60637dc4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f6212b3aacc07b12917662b9c5f08182e5fe7b3aa20d000105cf2b60637dc4d", kill_on_drop: false }`
[INFO] [stdout] 0f6212b3aacc07b12917662b9c5f08182e5fe7b3aa20d000105cf2b60637dc4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+4a23c45c7893f1416456144e3883cc48ea91722e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6674f3fd1d3321d8c6f27e7c605f8e012a2c24f9ecf1e3dffc3c8f83548a89f1
[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" "6674f3fd1d3321d8c6f27e7c605f8e012a2c24f9ecf1e3dffc3c8f83548a89f1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling getrandom v0.2.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]     Checking spin v0.7.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking pollster v0.2.0
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking async-lock v2.3.0
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking catty v0.1.4
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking spinny v0.2.1
[INFO] [stderr]     Checking spinning_top v0.2.2
[INFO] [stderr]     Checking barrage v0.2.1
[INFO] [stderr]     Checking futures-lite v1.11.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking async-io v1.2.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking async-fs v1.5.0
[INFO] [stderr]     Checking rand v0.8.1
[INFO] [stderr]     Checking async-net v1.5.0
[INFO] [stderr]     Checking async-process v1.0.1
[INFO] [stderr]     Checking smol v1.2.4
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling smol-potat-macro v0.5.0
[INFO] [stderr]    Compiling async-trait v0.1.41
[INFO] [stderr]     Checking smol-potat v1.1.0
[INFO] [stderr]     Checking pin-project v1.0.1
[INFO] [stderr]     Checking flume v0.10.1
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking xtra v0.5.0-rc.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.36s
[INFO] running `Command { std: "docker" "inspect" "6674f3fd1d3321d8c6f27e7c605f8e012a2c24f9ecf1e3dffc3c8f83548a89f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6674f3fd1d3321d8c6f27e7c605f8e012a2c24f9ecf1e3dffc3c8f83548a89f1", kill_on_drop: false }`
[INFO] [stdout] 6674f3fd1d3321d8c6f27e7c605f8e012a2c24f9ecf1e3dffc3c8f83548a89f1