[INFO] fetching crate async-session 2.0.1...
[INFO] checking async-session-2.0.1 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] extracting crate async-session 2.0.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate async-session 2.0.1 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-session 2.0.1
[INFO] finished tweaking crates.io crate async-session 2.0.1
[INFO] tweaked toml for crates.io crate async-session 2.0.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e314b54235c2077dc3ee0a46716a5c6bbfe8a49b6d721e26cb3ac8da5c158a4
[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" "9e314b54235c2077dc3ee0a46716a5c6bbfe8a49b6d721e26cb3ac8da5c158a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e314b54235c2077dc3ee0a46716a5c6bbfe8a49b6d721e26cb3ac8da5c158a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e314b54235c2077dc3ee0a46716a5c6bbfe8a49b6d721e26cb3ac8da5c158a4", kill_on_drop: false }`
[INFO] [stdout] 9e314b54235c2077dc3ee0a46716a5c6bbfe8a49b6d721e26cb3ac8da5c158a4
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86e50be4d3183959b7a9709fe6207d14334498e968597c18f448b8a54e3fafa3
[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" "86e50be4d3183959b7a9709fe6207d14334498e968597c18f448b8a54e3fafa3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking futures-io v0.3.12
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling serde_json v1.0.62
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling blake3 v0.3.7
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]     Checking hmac v0.8.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling ctor v0.1.19
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]     Checking value-bag v1.0.0-alpha.6
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking async-io v1.3.1
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking async-session v2.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `Command { std: "docker" "inspect" "86e50be4d3183959b7a9709fe6207d14334498e968597c18f448b8a54e3fafa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86e50be4d3183959b7a9709fe6207d14334498e968597c18f448b8a54e3fafa3", kill_on_drop: false }`
[INFO] [stdout] 86e50be4d3183959b7a9709fe6207d14334498e968597c18f448b8a54e3fafa3