[INFO] fetching crate contract-metadata 6.0.0-alpha...
[INFO] checking contract-metadata-6.0.0-alpha against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate contract-metadata 6.0.0-alpha into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate contract-metadata 6.0.0-alpha
[INFO] finished tweaking crates.io crate contract-metadata 6.0.0-alpha
[INFO] tweaked toml for crates.io crate contract-metadata 6.0.0-alpha written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate contract-metadata 6.0.0-alpha on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate contract-metadata 6.0.0-alpha already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bfa6a28a21d8ab4d026cc41113940160efe9d2f633f61d5e99006e009e8c74cf
[INFO] running `Command { std: "docker" "start" "-a" "bfa6a28a21d8ab4d026cc41113940160efe9d2f633f61d5e99006e009e8c74cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfa6a28a21d8ab4d026cc41113940160efe9d2f633f61d5e99006e009e8c74cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfa6a28a21d8ab4d026cc41113940160efe9d2f633f61d5e99006e009e8c74cf", kill_on_drop: false }`
[INFO] [stdout] bfa6a28a21d8ab4d026cc41113940160efe9d2f633f61d5e99006e009e8c74cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a8c28f412f1fb7e5a77e54ece048edd8ec67f9988b670a97e19f645ceec052f
[INFO] running `Command { std: "docker" "start" "-a" "6a8c28f412f1fb7e5a77e54ece048edd8ec67f9988b670a97e19f645ceec052f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking writeable v0.5.5
[INFO] [stderr]     Checking litemap v0.7.5
[INFO] [stderr]     Checking icu_locid_transform_data v1.5.0
[INFO] [stderr]     Checking icu_properties_data v1.5.0
[INFO] [stderr]     Checking write16 v1.0.0
[INFO] [stderr]     Checking utf16_iter v1.0.5
[INFO] [stderr]     Checking smallvec v1.14.0
[INFO] [stderr]     Checking icu_normalizer_data v1.5.0
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling anyhow v1.0.97
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking yansi v1.0.1
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking pretty_assertions v1.4.1
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.7.5
[INFO] [stderr]    Compiling zerovec-derive v0.10.3
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling icu_provider_macros v1.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking yoke v0.7.5
[INFO] [stderr]     Checking zerovec v0.10.4
[INFO] [stderr]     Checking tinystr v0.7.6
[INFO] [stderr]     Checking icu_collections v1.5.0
[INFO] [stderr]     Checking icu_locid v1.5.0
[INFO] [stderr]     Checking icu_provider v1.5.0
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking icu_locid_transform v1.5.0
[INFO] [stderr]     Checking icu_properties v1.5.1
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking impl-serde v0.5.0
[INFO] [stderr]     Checking icu_normalizer v1.5.0
[INFO] [stderr]     Checking idna_adapter v1.2.0
[INFO] [stderr]     Checking idna v1.0.3
[INFO] [stderr]     Checking url v2.5.4
[INFO] [stderr]     Checking contract-metadata v6.0.0-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.89s
[INFO] running `Command { std: "docker" "inspect" "6a8c28f412f1fb7e5a77e54ece048edd8ec67f9988b670a97e19f645ceec052f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a8c28f412f1fb7e5a77e54ece048edd8ec67f9988b670a97e19f645ceec052f", kill_on_drop: false }`
[INFO] [stdout] 6a8c28f412f1fb7e5a77e54ece048edd8ec67f9988b670a97e19f645ceec052f