[INFO] fetching crate solo2 0.0.4...
[INFO] checking solo2-0.0.4 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate solo2 0.0.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate solo2 0.0.4 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate solo2 0.0.4
[INFO] finished tweaking crates.io crate solo2 0.0.4
[INFO] tweaked toml for crates.io crate solo2 0.0.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate solo2 0.0.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--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-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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] cc510c3b0a2202bb56e1075f4f3a10de7cf9f11000ad9e7837bab02b60c774f3
[INFO] running `Command { std: "docker" "start" "-a" "cc510c3b0a2202bb56e1075f4f3a10de7cf9f11000ad9e7837bab02b60c774f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc510c3b0a2202bb56e1075f4f3a10de7cf9f11000ad9e7837bab02b60c774f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc510c3b0a2202bb56e1075f4f3a10de7cf9f11000ad9e7837bab02b60c774f3", kill_on_drop: false }`
[INFO] [stdout] cc510c3b0a2202bb56e1075f4f3a10de7cf9f11000ad9e7837bab02b60c774f3
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f996b0e1b058e6c8d891adf45c96de0daaffad46257bdc4fa11b253db6e12cb
[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" "7f996b0e1b058e6c8d891adf45c96de0daaffad46257bdc4fa11b253db6e12cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking base64ct v1.0.0
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[INFO] [stderr]     Checking openssl-probe v0.1.4
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[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking linked-hash-map v0.5.4
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[INFO] [stderr]    Compiling heapless v0.7.3
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[INFO] [stderr]    Compiling encoding_rs v0.8.28
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[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]    Compiling hex-literal v0.3.3
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking pem-rfc7468 v0.2.0
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling hidapi v1.2.6
[INFO] [stderr]    Compiling pcsc-sys v1.2.0
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling num-bigint-dig v0.7.0
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking uriparse v0.6.3
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling bitvec v0.19.5
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking iso7816 v0.1.0-alpha.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.11.1
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking http-body v0.4.2
[INFO] [stderr]     Checking pcsc v2.5.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]     Checking ctr v0.8.0
[INFO] [stderr]     Checking aes v0.7.4
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]     Checking sha-1 v0.9.7
[INFO] [stderr]     Checking hmac v0.11.0
[INFO] [stderr]     Checking crypto-bigint v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking der v0.4.0
[INFO] [stderr]     Checking pem-parser v0.1.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking spki v0.4.0
[INFO] [stderr]     Checking tiny_http v0.8.2
[INFO] [stderr]     Checking pkcs11 v0.5.0
[INFO] [stderr]     Checking pkcs11-uri v0.1.2
[INFO] [stderr]     Checking rusticata-macros v3.1.0
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling lpc55 v0.1.0-alpha.7
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]    Compiling der-oid-macro v0.4.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling enum-iterator-derive v0.7.0
[INFO] [stderr]     Checking der-parser v5.1.1
[INFO] [stderr]     Checking enum-iterator v0.7.0
[INFO] [stderr]     Checking zeroize v1.4.1
[INFO] [stderr]     Checking pkcs1 v0.2.3
[INFO] [stderr]     Checking pkcs8 v0.7.5
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking x509-parser v0.9.2
[INFO] [stderr]     Checking rsa v0.5.0
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking serde-big-array v0.3.2
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking hyper v0.14.11
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.4
[INFO] [stderr]     Checking solo2 v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 54s
[INFO] running `Command { std: "docker" "inspect" "7f996b0e1b058e6c8d891adf45c96de0daaffad46257bdc4fa11b253db6e12cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f996b0e1b058e6c8d891adf45c96de0daaffad46257bdc4fa11b253db6e12cb", kill_on_drop: false }`
[INFO] [stdout] 7f996b0e1b058e6c8d891adf45c96de0daaffad46257bdc4fa11b253db6e12cb