[INFO] fetching crate serenity_utils 0.6.1...
[INFO] checking serenity_utils-0.6.1 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate serenity_utils 0.6.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate serenity_utils 0.6.1 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serenity_utils 0.6.1
[INFO] finished tweaking crates.io crate serenity_utils 0.6.1
[INFO] tweaked toml for crates.io crate serenity_utils 0.6.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8d348b48d530d085c0607c8979d44156c68c0555228c3746b2ff71d0ebf62c96
[INFO] running `Command { std: "docker" "start" "-a" "8d348b48d530d085c0607c8979d44156c68c0555228c3746b2ff71d0ebf62c96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d348b48d530d085c0607c8979d44156c68c0555228c3746b2ff71d0ebf62c96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d348b48d530d085c0607c8979d44156c68c0555228c3746b2ff71d0ebf62c96", kill_on_drop: false }`
[INFO] [stdout] 8d348b48d530d085c0607c8979d44156c68c0555228c3746b2ff71d0ebf62c96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 450ab07320206d9cb9bc37e5b3421b4b6e30605cf9be1e2d5780a71da5d6bb71
[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" "450ab07320206d9cb9bc37e5b3421b4b6e30605cf9be1e2d5780a71da5d6bb71", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]     Checking pin-project-lite v0.2.4
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[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]     Checking futures-sink v0.3.12
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[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling httparse v1.3.5
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[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]     Checking cpuid-bool v0.1.2
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[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]    Compiling serenity v0.10.2
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[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking futures-task v0.3.12
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[INFO] [stderr]     Checking typenum v1.12.0
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking idna v0.2.1
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[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking url v2.2.0
[INFO] [stderr]     Checking generic-array v0.14.4
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking mio v0.7.7
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking rand_core v0.5.1
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[INFO] [stderr]     Checking webpki-roots v0.21.0
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[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling tracing-attributes v0.1.12
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking tracing v0.1.23
[INFO] [stderr]     Checking pin-project v1.0.5
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking futures v0.3.12
[INFO] [stderr]     Checking tokio-util v0.6.3
[INFO] [stderr]     Checking tokio-rustls v0.22.0
[INFO] [stderr]     Checking async-tungstenite v0.11.0
[INFO] [stderr]     Checking h2 v0.3.0
[INFO] [stderr]     Checking hyper v0.14.4
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking serde_json v1.0.62
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking hyper-rustls v0.22.1
[INFO] [stderr]     Checking reqwest v0.11.0
[INFO] [stderr]     Checking serenity_utils v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 03s
[INFO] running `Command { std: "docker" "inspect" "450ab07320206d9cb9bc37e5b3421b4b6e30605cf9be1e2d5780a71da5d6bb71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "450ab07320206d9cb9bc37e5b3421b4b6e30605cf9be1e2d5780a71da5d6bb71", kill_on_drop: false }`
[INFO] [stdout] 450ab07320206d9cb9bc37e5b3421b4b6e30605cf9be1e2d5780a71da5d6bb71