[INFO] fetching crate serde_dhall 0.7.0...
[INFO] checking serde_dhall-0.7.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate serde_dhall 0.7.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate serde_dhall 0.7.0 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_dhall 0.7.0
[INFO] finished tweaking crates.io crate serde_dhall 0.7.0
[INFO] tweaked toml for crates.io crate serde_dhall 0.7.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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 v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ae6ae1c0ffe9bc5f0ecd8bd4570934b0127c42359a501bb076f2f7b8cf3d272
[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" "0ae6ae1c0ffe9bc5f0ecd8bd4570934b0127c42359a501bb076f2f7b8cf3d272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ae6ae1c0ffe9bc5f0ecd8bd4570934b0127c42359a501bb076f2f7b8cf3d272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ae6ae1c0ffe9bc5f0ecd8bd4570934b0127c42359a501bb076f2f7b8cf3d272", kill_on_drop: false }`
[INFO] [stdout] 0ae6ae1c0ffe9bc5f0ecd8bd4570934b0127c42359a501bb076f2f7b8cf3d272
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bc57a93ae89e30222f5d27d09c7bb28f98b2132d8021d98fa3318c06f95ef0e
[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" "0bc57a93ae89e30222f5d27d09c7bb28f98b2132d8021d98fa3318c06f95ef0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling typed-arena v1.7.0
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking annotate-snippets v0.7.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]     Checking futures-channel v0.3.6
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling pretty v0.5.2
[INFO] [stderr]     Checking futures-task v0.3.6
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking pulldown-cmark v0.7.2
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking syn v1.0.42
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]    Compiling abnf v0.6.1
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling abnf_to_pest v0.5.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.26
[INFO] [stderr]    Compiling pest_consume_macros v1.0.5
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling dhall v0.7.0
[INFO] [stderr]    Compiling dhall_proc_macros v0.5.0
[INFO] [stderr]     Checking pest_consume v1.0.5
[INFO] [stderr]     Checking pin-project v0.4.26
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking serde_cbor v0.9.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking hyper v0.13.8
[INFO] [stderr]     Checking version-sync v0.9.1
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.8
[INFO] [stderr]     Checking serde_dhall v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 46s
[INFO] running `Command { std: "docker" "inspect" "0bc57a93ae89e30222f5d27d09c7bb28f98b2132d8021d98fa3318c06f95ef0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bc57a93ae89e30222f5d27d09c7bb28f98b2132d8021d98fa3318c06f95ef0e", kill_on_drop: false }`
[INFO] [stdout] 0bc57a93ae89e30222f5d27d09c7bb28f98b2132d8021d98fa3318c06f95ef0e