[INFO] fetching crate cloudevents 0.1.1...
[INFO] checking cloudevents-0.1.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate cloudevents 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate cloudevents 0.1.1
[INFO] finished tweaking crates.io crate cloudevents 0.1.1
[INFO] tweaked toml for crates.io crate cloudevents 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cloudevents 0.1.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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 69 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.10.1 (available: v0.22.1)
[INFO] [stderr]       Adding url v1.7.2 (available: v2.5.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47192367a0bd54283889063bc91486a2af9d3edf7400df865ed214f1cdd3299b
[INFO] running `Command { std: "docker" "start" "-a" "47192367a0bd54283889063bc91486a2af9d3edf7400df865ed214f1cdd3299b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47192367a0bd54283889063bc91486a2af9d3edf7400df865ed214f1cdd3299b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47192367a0bd54283889063bc91486a2af9d3edf7400df865ed214f1cdd3299b", kill_on_drop: false }`
[INFO] [stdout] 47192367a0bd54283889063bc91486a2af9d3edf7400df865ed214f1cdd3299b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59b702f5688c462e8bd609d127631d2ed07dd820d2e653ae53cd1719a0dcc9d3
[INFO] running `Command { std: "docker" "start" "-a" "59b702f5688c462e8bd609d127631d2ed07dd820d2e653ae53cd1719a0dcc9d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking gimli v0.31.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking adler2 v2.0.1
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking rustc-demangle v0.1.25
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]     Checking tinyvec v1.9.0
[INFO] [stderr]     Checking unicode-bidi v0.3.18
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking iana-time-zone v0.1.63
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking unicode-normalization v0.1.24
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking addr2line v0.24.2
[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]     Checking backtrace v0.3.75
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking cloudevents v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.00s
[INFO] running `Command { std: "docker" "inspect" "59b702f5688c462e8bd609d127631d2ed07dd820d2e653ae53cd1719a0dcc9d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59b702f5688c462e8bd609d127631d2ed07dd820d2e653ae53cd1719a0dcc9d3", kill_on_drop: false }`
[INFO] [stdout] 59b702f5688c462e8bd609d127631d2ed07dd820d2e653ae53cd1719a0dcc9d3