[INFO] fetching crate donut 0.1.0...
[INFO] checking donut-0.1.0 against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] extracting crate donut 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate donut 0.1.0 on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate donut 0.1.0
[INFO] finished tweaking crates.io crate donut 0.1.0
[INFO] tweaked toml for crates.io crate donut 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate donut 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num_cpus v1.12.0
[INFO] [stderr]   Downloaded nibble_vec v0.0.4
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.11
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.3
[INFO] [stderr]   Downloaded endian-type v0.1.2
[INFO] [stderr]   Downloaded futures-executor v0.3.1
[INFO] [stderr]   Downloaded futures-macro v0.3.1
[INFO] [stderr]   Downloaded regex v1.3.3
[INFO] [stderr]   Downloaded async-trait v0.1.22
[INFO] [stderr]   Downloaded data-encoding v2.1.2
[INFO] [stderr]   Downloaded tracing-core v0.1.9
[INFO] [stderr]   Downloaded regex-automata v0.1.8
[INFO] [stderr]   Downloaded indexmap v1.3.1
[INFO] [stderr]   Downloaded tokio-macros v0.2.3
[INFO] [stderr]   Downloaded smallvec v1.1.0
[INFO] [stderr]   Downloaded socket2 v0.3.11
[INFO] [stderr]   Downloaded miow v0.3.3
[INFO] [stderr]   Downloaded arc-swap v0.4.4
[INFO] [stderr]   Downloaded regex-syntax v0.6.13
[INFO] [stderr]   Downloaded cc v1.0.50
[INFO] [stderr]   Downloaded backtrace v0.3.42
[INFO] [stderr]   Downloaded tracing-attributes v0.1.6
[INFO] [stderr]   Downloaded futures v0.3.1
[INFO] [stderr]   Downloaded mio-named-pipes v0.1.6
[INFO] [stderr]   Downloaded radix_trie v0.1.6
[INFO] [stderr]   Downloaded tokio v0.2.9
[INFO] [stderr]   Downloaded tracing-subscriber v0.1.6
[INFO] [stderr]   Downloaded enum-as-inner v0.3.0
[INFO] [stderr]   Downloaded memchr v2.3.0
[INFO] [stderr]   Downloaded signal-hook-registry v1.2.0
[INFO] [stderr]   Downloaded tracing v0.1.12
[INFO] [stderr]   Downloaded mio-uds v0.6.7
[INFO] [stderr]   Downloaded serde_json v1.0.44
[INFO] [stderr]   Downloaded trust-dns-proto v0.18.1
[INFO] [stderr]   Downloaded url v2.1.1
[INFO] [stderr]   Downloaded syn v1.0.13
[INFO] [stderr]   Downloaded chrono v0.4.10
[INFO] [stderr]   Downloaded unicode-normalization v0.1.11
[INFO] [stderr]   Downloaded trust-dns-client v0.18.1
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "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] c91cde0928585250cd5b6ec689618651fcf2821e655d7985412d6cdab76c7be3
[INFO] running `Command { std: "docker" "start" "-a" "c91cde0928585250cd5b6ec689618651fcf2821e655d7985412d6cdab76c7be3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c91cde0928585250cd5b6ec689618651fcf2821e655d7985412d6cdab76c7be3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c91cde0928585250cd5b6ec689618651fcf2821e655d7985412d6cdab76c7be3", kill_on_drop: false }`
[INFO] [stdout] c91cde0928585250cd5b6ec689618651fcf2821e655d7985412d6cdab76c7be3
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "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] 425f08074e2da5ec7de3f038dcecc2249c6263cdcc4b6cca320ca394de9caf34
[INFO] running `Command { std: "docker" "start" "-a" "425f08074e2da5ec7de3f038dcecc2249c6263cdcc4b6cca320ca394de9caf34", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]     Checking futures-core v0.3.1
[INFO] [stderr]     Checking futures-sink v0.3.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]     Checking bytes v0.5.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking futures-io v0.3.1
[INFO] [stderr]     Checking futures-task v0.3.1
[INFO] [stderr]     Checking arc-swap v0.4.4
[INFO] [stderr]     Checking pin-project-lite v0.1.2
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking smallvec v1.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking regex-syntax v0.6.13
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking data-encoding v2.1.2
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling indexmap v1.3.1
[INFO] [stderr]     Checking tracing-core v0.1.9
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]     Checking unicode-normalization v0.1.11
[INFO] [stderr]     Checking radix_trie v0.1.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking backtrace v0.3.42
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking regex v1.3.3
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking tracing-subscriber v0.1.6
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling tokio-macros v0.2.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.6
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling enum-as-inner v0.3.0
[INFO] [stderr]    Compiling async-trait v0.1.22
[INFO] [stderr]    Compiling tracing-attributes v0.1.6
[INFO] [stderr]     Checking tokio v0.2.9
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]     Checking tracing v0.1.12
[INFO] [stderr]     Checking pin-project v0.4.6
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking futures-executor v0.3.1
[INFO] [stderr]     Checking h2 v0.2.1
[INFO] [stderr]     Checking futures v0.3.1
[INFO] [stderr]     Checking trust-dns-proto v0.18.1
[INFO] [stderr]     Checking hyper v0.13.1
[INFO] [stderr]     Checking trust-dns-client v0.18.1
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking donut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 25s
[INFO] running `Command { std: "docker" "inspect" "425f08074e2da5ec7de3f038dcecc2249c6263cdcc4b6cca320ca394de9caf34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "425f08074e2da5ec7de3f038dcecc2249c6263cdcc4b6cca320ca394de9caf34", kill_on_drop: false }`
[INFO] [stdout] 425f08074e2da5ec7de3f038dcecc2249c6263cdcc4b6cca320ca394de9caf34