[INFO] fetching crate koto_yaml 0.9.1...
[INFO] checking koto_yaml-0.9.1 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate koto_yaml 0.9.1 into /workspace/builds/worker-71/source
[INFO] validating manifest of crates.io crate koto_yaml 0.9.1 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate koto_yaml 0.9.1
[INFO] finished tweaking crates.io crate koto_yaml 0.9.1
[INFO] tweaked toml for crates.io crate koto_yaml 0.9.1 written to /workspace/builds/worker-71/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--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 koto_serialize v0.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7078064d15c215ba59c34248a9bcdb755e0937f490aa2940fd224c1e5258dd6b
[INFO] running `Command { std: "docker" "start" "-a" "7078064d15c215ba59c34248a9bcdb755e0937f490aa2940fd224c1e5258dd6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7078064d15c215ba59c34248a9bcdb755e0937f490aa2940fd224c1e5258dd6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7078064d15c215ba59c34248a9bcdb755e0937f490aa2940fd224c1e5258dd6b", kill_on_drop: false }`
[INFO] [stdout] 7078064d15c215ba59c34248a9bcdb755e0937f490aa2940fd224c1e5258dd6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5db356fc489aa71711624ae51ff81c86306e5e22bf35b6353e82dbaeb66ecb6c
[INFO] running `Command { std: "docker" "start" "-a" "5db356fc489aa71711624ae51ff81c86306e5e22bf35b6353e82dbaeb66ecb6c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]     Checking dunce v1.0.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking koto_lexer v0.9.1
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking koto_parser v0.9.1
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking koto_bytecode v0.9.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking serde_yaml v0.8.21
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking koto_runtime v0.9.1
[INFO] [stderr]     Checking koto_serialize v0.9.1
[INFO] [stderr]     Checking koto_yaml v0.9.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.38s
[INFO] running `Command { std: "docker" "inspect" "5db356fc489aa71711624ae51ff81c86306e5e22bf35b6353e82dbaeb66ecb6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5db356fc489aa71711624ae51ff81c86306e5e22bf35b6353e82dbaeb66ecb6c", kill_on_drop: false }`
[INFO] [stdout] 5db356fc489aa71711624ae51ff81c86306e5e22bf35b6353e82dbaeb66ecb6c