[INFO] fetching crate ion-binary-rs 0.8.2...
[INFO] checking ion-binary-rs-0.8.2 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate ion-binary-rs 0.8.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate ion-binary-rs 0.8.2 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ion-binary-rs 0.8.2
[INFO] finished tweaking crates.io crate ion-binary-rs 0.8.2
[INFO] tweaked toml for crates.io crate ion-binary-rs 0.8.2 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42119a20b738bfde6f0ec0725377679877fe29dd307a2a85e481ab89498abfcf
[INFO] running `Command { std: "docker" "start" "-a" "42119a20b738bfde6f0ec0725377679877fe29dd307a2a85e481ab89498abfcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42119a20b738bfde6f0ec0725377679877fe29dd307a2a85e481ab89498abfcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42119a20b738bfde6f0ec0725377679877fe29dd307a2a85e481ab89498abfcf", kill_on_drop: false }`
[INFO] [stdout] 42119a20b738bfde6f0ec0725377679877fe29dd307a2a85e481ab89498abfcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 363005ea8f4ef8e87d3bff0d3ce0eb1d230d9bd2ed4f2700373b2abe416aad41
[INFO] running `Command { std: "docker" "start" "-a" "363005ea8f4ef8e87d3bff0d3ce0eb1d230d9bd2ed4f2700373b2abe416aad41", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.2
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking bigdecimal v0.2.0
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking ion-binary-rs v0.8.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `current_ion_version`
[INFO] [stdout]  --> src/binary_parser.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     current_ion_version: Option<(u8, u8)>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `current_ion_version`
[INFO] [stdout]  --> src/binary_parser.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     current_ion_version: Option<(u8, u8)>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.78s
[INFO] running `Command { std: "docker" "inspect" "363005ea8f4ef8e87d3bff0d3ce0eb1d230d9bd2ed4f2700373b2abe416aad41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "363005ea8f4ef8e87d3bff0d3ce0eb1d230d9bd2ed4f2700373b2abe416aad41", kill_on_drop: false }`
[INFO] [stdout] 363005ea8f4ef8e87d3bff0d3ce0eb1d230d9bd2ed4f2700373b2abe416aad41