[INFO] fetching crate clepsydra 0.2.0...
[INFO] checking clepsydra-0.2.0 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate clepsydra 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate clepsydra 0.2.0 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate clepsydra 0.2.0
[INFO] finished tweaking crates.io crate clepsydra 0.2.0
[INFO] tweaked toml for crates.io crate clepsydra 0.2.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate clepsydra 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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] ecb5dca916191b08e2b6f49cc4ca37170cd5dd40dc30031eb3bbc1c6def266e0
[INFO] running `Command { std: "docker" "start" "-a" "ecb5dca916191b08e2b6f49cc4ca37170cd5dd40dc30031eb3bbc1c6def266e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecb5dca916191b08e2b6f49cc4ca37170cd5dd40dc30031eb3bbc1c6def266e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecb5dca916191b08e2b6f49cc4ca37170cd5dd40dc30031eb3bbc1c6def266e0", kill_on_drop: false }`
[INFO] [stdout] ecb5dca916191b08e2b6f49cc4ca37170cd5dd40dc30031eb3bbc1c6def266e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 25e1c371c49b90b215ec9b2b3f457c5cfc73b726835f29ef90fbd958d3e2ef6d
[INFO] running `Command { std: "docker" "start" "-a" "25e1c371c49b90b215ec9b2b3f457c5cfc73b726835f29ef90fbd958d3e2ef6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]    Compiling byteorder_async v1.2.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking postcard-cobs v0.1.5-pre
[INFO] [stderr]     Checking smallvec v1.5.1
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling im v15.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling im-rc v15.0.0
[INFO] [stderr]     Checking sharded-slab v0.1.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking sluice v0.5.3
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking kv-log-macro v1.0.6
[INFO] [stderr]     Checking futures-lite v1.11.2
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking as-slice v0.1.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking async-io v1.3.0
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-process v1.0.1
[INFO] [stderr]     Checking async-global-executor v1.4.3
[INFO] [stderr]     Checking async-std v1.8.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking sized-chunks v0.6.2
[INFO] [stderr]     Checking duplexify v1.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]     Checking pin-project v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking postcard v0.5.1
[INFO] [stderr]     Checking edelcrantz v0.6.1
[INFO] [stderr]     Checking tracing-subscriber v0.2.15
[INFO] [stderr]     Checking pergola v0.9.0
[INFO] [stderr]     Checking concorde v0.7.0
[INFO] [stderr]     Checking clepsydra v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 38s
[INFO] running `Command { std: "docker" "inspect" "25e1c371c49b90b215ec9b2b3f457c5cfc73b726835f29ef90fbd958d3e2ef6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25e1c371c49b90b215ec9b2b3f457c5cfc73b726835f29ef90fbd958d3e2ef6d", kill_on_drop: false }`
[INFO] [stdout] 25e1c371c49b90b215ec9b2b3f457c5cfc73b726835f29ef90fbd958d3e2ef6d