[INFO] fetching crate serde_dhall 0.10.0...
[INFO] checking serde_dhall-0.10.0 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate serde_dhall 0.10.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate serde_dhall 0.10.0 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_dhall 0.10.0
[INFO] finished tweaking crates.io crate serde_dhall 0.10.0
[INFO] tweaked toml for crates.io crate serde_dhall 0.10.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dhall_proc_macros v0.5.0
[INFO] [stderr]   Downloaded annotate-snippets v0.9.0
[INFO] [stderr]   Downloaded pretty v0.5.2
[INFO] [stderr]   Downloaded abnf v0.6.1
[INFO] [stderr]   Downloaded pest_consume v1.0.6
[INFO] [stderr]   Downloaded dhall v0.10.0
[INFO] [stderr]   Downloaded abnf_to_pest v0.5.0
[INFO] [stderr]   Downloaded pest_consume_macros v1.0.6
[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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] 9a288e9ed7c345d1d1769bd1f18ffc7082d8b1ab638a15fd79a204446bd87b16
[INFO] running `Command { std: "docker" "start" "-a" "9a288e9ed7c345d1d1769bd1f18ffc7082d8b1ab638a15fd79a204446bd87b16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a288e9ed7c345d1d1769bd1f18ffc7082d8b1ab638a15fd79a204446bd87b16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a288e9ed7c345d1d1769bd1f18ffc7082d8b1ab638a15fd79a204446bd87b16", kill_on_drop: false }`
[INFO] [stdout] 9a288e9ed7c345d1d1769bd1f18ffc7082d8b1ab638a15fd79a204446bd87b16
[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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] 38155f38f9b79174a7f9949fb33288aad370f1eac9df12a1e7160aaef7a92ae6
[INFO] running `Command { std: "docker" "start" "-a" "38155f38f9b79174a7f9949fb33288aad370f1eac9df12a1e7160aaef7a92ae6", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling lexical-core v0.7.5
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling openssl v0.10.33
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling httparse v1.4.0
[INFO] [stderr]    Compiling typed-arena v1.7.0
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking elsa v1.4.0
[INFO] [stderr]    Compiling pretty v0.5.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking annotate-snippets v0.9.0
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking syn v1.0.69
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]     Checking http-body v0.4.1
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking tokio-util v0.6.6
[INFO] [stderr]     Checking h2 v0.3.2
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling abnf v0.6.1
[INFO] [stderr]    Compiling abnf_to_pest v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling dhall v0.10.0
[INFO] [stderr]    Compiling pest_consume_macros v1.0.6
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling dhall_proc_macros v0.5.0
[INFO] [stderr]     Checking pest_consume v1.0.6
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking hyper v0.14.5
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking reqwest v0.11.3
[INFO] [stderr]     Checking version-sync v0.9.2
[INFO] [stderr]     Checking serde_dhall v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `Command { std: "docker" "inspect" "38155f38f9b79174a7f9949fb33288aad370f1eac9df12a1e7160aaef7a92ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38155f38f9b79174a7f9949fb33288aad370f1eac9df12a1e7160aaef7a92ae6", kill_on_drop: false }`
[INFO] [stdout] 38155f38f9b79174a7f9949fb33288aad370f1eac9df12a1e7160aaef7a92ae6