[INFO] fetching crate smol 1.2.4...
[INFO] checking smol-1.2.4 against beta for pr-78714
[INFO] extracting crate smol 1.2.4 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate smol 1.2.4 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate smol 1.2.4
[INFO] finished tweaking crates.io crate smol 1.2.4
[INFO] tweaked toml for crates.io crate smol 1.2.4 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate smol 1.2.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 7af882ffe6a8ff2cfeb5800ec7c91107d667e21c3358742409ee7767db0acc85
[INFO] running `Command { std: "docker" "start" "-a" "7af882ffe6a8ff2cfeb5800ec7c91107d667e21c3358742409ee7767db0acc85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7af882ffe6a8ff2cfeb5800ec7c91107d667e21c3358742409ee7767db0acc85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7af882ffe6a8ff2cfeb5800ec7c91107d667e21c3358742409ee7767db0acc85", kill_on_drop: false }`
[INFO] [stdout] 7af882ffe6a8ff2cfeb5800ec7c91107d667e21c3358742409ee7767db0acc85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 581b5e239b5c8ef87e0b9601d775a4ce27c5ee7f46a1c086f5b8016530aff71d
[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" "581b5e239b5c8ef87e0b9601d775a4ce27c5ee7f46a1c086f5b8016530aff71d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]     Checking async-task v4.0.0
[INFO] [stderr]     Checking infer v0.1.7
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking route-recognizer v0.2.0
[INFO] [stderr]    Compiling standback v0.2.10
[INFO] [stderr]    Compiling time v0.2.20
[INFO] [stderr]    Compiling cookie v0.14.2
[INFO] [stderr]     Checking async-mutex v1.3.0
[INFO] [stderr]     Checking async-lock v2.3.0
[INFO] [stderr]     Checking simple-mutex v1.1.5
[INFO] [stderr]    Compiling blake3 v0.3.6
[INFO] [stderr]     Checking async-channel v1.4.2
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking futures-lite v1.11.0
[INFO] [stderr]     Checking universal-hash v0.4.0
[INFO] [stderr]     Checking aead v0.3.2
[INFO] [stderr]     Checking aes-soft v0.4.0
[INFO] [stderr]     Checking async-dup v1.2.2
[INFO] [stderr]     Checking hkdf v0.9.0
[INFO] [stderr]     Checking polyval v0.4.0
[INFO] [stderr]     Checking ghash v0.3.0
[INFO] [stderr]     Checking aes v0.4.0
[INFO] [stderr]     Checking aes-gcm v0.6.0
[INFO] [stderr]     Checking blocking v1.0.0
[INFO] [stderr]     Checking async-executor v1.3.0
[INFO] [stderr]     Checking async-fs v1.3.0
[INFO] [stderr]     Checking nb-connect v1.0.0
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking polling v1.1.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking openssl-sys v0.9.58
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking timerfd v1.1.1
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking inotify v0.8.3
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking async-io v1.1.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking error-chain v0.12.4
[INFO] [stderr]     Checking openssl v0.10.30
[INFO] [stderr]     Checking async-global-executor v1.1.1
[INFO] [stderr]     Checking async-process v1.0.0
[INFO] [stderr]     Checking async-net v1.4.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking async-std v1.6.4
[INFO] [stderr]     Checking smol v1.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]    Compiling selectors v0.22.0
[INFO] [stderr]     Checking native-tls v0.2.4
[INFO] [stderr]     Checking ctrlc v3.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling cssparser v0.27.2
[INFO] [stderr]    Compiling cssparser-macros v0.6.0
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling async-trait v0.1.40
[INFO] [stderr]    Compiling derive_more v0.99.10
[INFO] [stderr]     Checking time-macros v0.1.0
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking serde_qs v0.6.1
[INFO] [stderr]     Checking string_cache v0.8.0
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking async-native-tls v0.3.3
[INFO] [stderr]     Checking tungstenite v0.11.1
[INFO] [stderr]     Checking http-types v2.4.0
[INFO] [stderr]     Checking femme v2.1.1
[INFO] [stderr]     Checking async-tungstenite v0.8.0
[INFO] [stderr]     Checking async-session v2.0.1
[INFO] [stderr]     Checking hyper v0.13.8
[INFO] [stderr]     Checking async-h1 v2.1.2
[INFO] [stderr]     Checking async-sse v4.0.0
[INFO] [stderr]    Compiling markup5ever v0.10.0
[INFO] [stderr]     Checking http-client v4.0.0
[INFO] [stderr]     Checking tide v0.13.0
[INFO] [stderr]     Checking surf v2.0.0-alpha.5
[INFO] [stderr]     Checking scraper v0.12.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 26s
[INFO] running `Command { std: "docker" "inspect" "581b5e239b5c8ef87e0b9601d775a4ce27c5ee7f46a1c086f5b8016530aff71d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "581b5e239b5c8ef87e0b9601d775a4ce27c5ee7f46a1c086f5b8016530aff71d", kill_on_drop: false }`
[INFO] [stdout] 581b5e239b5c8ef87e0b9601d775a4ce27c5ee7f46a1c086f5b8016530aff71d