[INFO] fetching crate xkcd_api 1.0.0...
[INFO] checking xkcd_api-1.0.0 against master#16b569057e4d1591b4bee05f10df34000308dedc for pr-127827
[INFO] extracting crate xkcd_api 1.0.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate xkcd_api 1.0.0 on toolchain 16b569057e4d1591b4bee05f10df34000308dedc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xkcd_api 1.0.0
[INFO] finished tweaking crates.io crate xkcd_api 1.0.0
[INFO] tweaked toml for crates.io crate xkcd_api 1.0.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 43 packages to latest compatible versions
[INFO] [stderr]       Adding idna v0.5.0 (latest: v1.0.2)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.1+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nanoserde v0.1.37
[INFO] [stderr]   Downloaded nanoserde-derive v0.1.22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9632ba77baeefdb8bda37c6c296dcb7215bf6a182f33728d8128c401ba4d059d
[INFO] running `Command { std: "docker" "start" "-a" "9632ba77baeefdb8bda37c6c296dcb7215bf6a182f33728d8128c401ba4d059d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9632ba77baeefdb8bda37c6c296dcb7215bf6a182f33728d8128c401ba4d059d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9632ba77baeefdb8bda37c6c296dcb7215bf6a182f33728d8128c401ba4d059d", kill_on_drop: false }`
[INFO] [stdout] 9632ba77baeefdb8bda37c6c296dcb7215bf6a182f33728d8128c401ba4d059d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 325a89466449777dcc1f6578ad8871067dc1e55764a3fc8fcd464d10fbd10e00
[INFO] running `Command { std: "docker" "start" "-a" "325a89466449777dcc1f6578ad8871067dc1e55764a3fc8fcd464d10fbd10e00", kill_on_drop: false }`
[INFO] [stderr]     Checking rustls-pki-types v1.7.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]    Compiling rustls v0.23.12
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]    Compiling nanoserde-derive v0.1.22
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]     Checking base64 v0.22.1
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking webpki-roots v0.26.3
[INFO] [stderr]     Checking nanoserde v0.1.37
[INFO] [stderr]     Checking rustls-webpki v0.102.6
[INFO] [stderr]     Checking ureq v2.10.0
[INFO] [stderr]     Checking xkcd_api v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.81s
[INFO] running `Command { std: "docker" "inspect" "325a89466449777dcc1f6578ad8871067dc1e55764a3fc8fcd464d10fbd10e00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "325a89466449777dcc1f6578ad8871067dc1e55764a3fc8fcd464d10fbd10e00", kill_on_drop: false }`
[INFO] [stdout] 325a89466449777dcc1f6578ad8871067dc1e55764a3fc8fcd464d10fbd10e00
[ERROR] this task or one of its parent failed!
[ERROR] error sending request for url (https://crater.rust-lang.org/agent-api/record-progress): connection closed before message completed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking xkcd_api-1.0.0 against try#8a6640bd72b80869b16392026cb3aa8ce8e3f9b7 for pr-127827
[INFO] extracting crate xkcd_api 1.0.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate xkcd_api 1.0.0 on toolchain 8a6640bd72b80869b16392026cb3aa8ce8e3f9b7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a6640bd72b80869b16392026cb3aa8ce8e3f9b7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xkcd_api 1.0.0
[INFO] finished tweaking crates.io crate xkcd_api 1.0.0
[INFO] tweaked toml for crates.io crate xkcd_api 1.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a6640bd72b80869b16392026cb3aa8ce8e3f9b7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 43 packages to latest compatible versions
[INFO] [stderr]       Adding idna v0.5.0 (latest: v1.0.2)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.1+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a6640bd72b80869b16392026cb3aa8ce8e3f9b7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+8a6640bd72b80869b16392026cb3aa8ce8e3f9b7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b758191a0d5d70a72a927241a58147dc723c019ebf0aa21e27f6a2d09cfeb75
[INFO] running `Command { std: "docker" "start" "-a" "7b758191a0d5d70a72a927241a58147dc723c019ebf0aa21e27f6a2d09cfeb75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b758191a0d5d70a72a927241a58147dc723c019ebf0aa21e27f6a2d09cfeb75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b758191a0d5d70a72a927241a58147dc723c019ebf0aa21e27f6a2d09cfeb75", kill_on_drop: false }`
[INFO] [stdout] 7b758191a0d5d70a72a927241a58147dc723c019ebf0aa21e27f6a2d09cfeb75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+8a6640bd72b80869b16392026cb3aa8ce8e3f9b7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50ccf1bd6082da1414656ab4600910514ba4c1f48ad4388a2f9e84acd9189762
[INFO] running `Command { std: "docker" "start" "-a" "50ccf1bd6082da1414656ab4600910514ba4c1f48ad4388a2f9e84acd9189762", kill_on_drop: false }`
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]     Checking rustls-pki-types v1.7.0
[INFO] [stderr]    Compiling rustls v0.23.12
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]    Compiling nanoserde-derive v0.1.22
[INFO] [stderr]     Checking base64 v0.22.1
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking webpki-roots v0.26.3
[INFO] [stderr]     Checking nanoserde v0.1.37
[INFO] [stderr]     Checking rustls-webpki v0.102.6
[INFO] [stderr]     Checking ureq v2.10.0
[INFO] [stderr]     Checking xkcd_api v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.68s
[INFO] running `Command { std: "docker" "inspect" "50ccf1bd6082da1414656ab4600910514ba4c1f48ad4388a2f9e84acd9189762", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50ccf1bd6082da1414656ab4600910514ba4c1f48ad4388a2f9e84acd9189762", kill_on_drop: false }`
[INFO] [stdout] 50ccf1bd6082da1414656ab4600910514ba4c1f48ad4388a2f9e84acd9189762