[INFO] fetching crate h4x_core 0.0.2...
[INFO] testing h4x_core-0.0.2 against 1.90.0 for beta-1.91-3
[INFO] extracting crate h4x_core 0.0.2 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate h4x_core 0.0.2
[INFO] finished tweaking crates.io crate h4x_core 0.0.2
[INFO] tweaked toml for crates.io crate h4x_core 0.0.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate h4x_core 0.0.2 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dafa08b27ecce2f09d16949877508bd417e474074aac0b14c0b55746c71a2e90
[INFO] running `Command { std: "docker" "start" "-a" "dafa08b27ecce2f09d16949877508bd417e474074aac0b14c0b55746c71a2e90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dafa08b27ecce2f09d16949877508bd417e474074aac0b14c0b55746c71a2e90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dafa08b27ecce2f09d16949877508bd417e474074aac0b14c0b55746c71a2e90", kill_on_drop: false }`
[INFO] [stdout] dafa08b27ecce2f09d16949877508bd417e474074aac0b14c0b55746c71a2e90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49eed77298e252e0fe07f61362a725ad056ae316be325bbcd319cbfc156ba68b
[INFO] running `Command { std: "docker" "start" "-a" "49eed77298e252e0fe07f61362a725ad056ae316be325bbcd319cbfc156ba68b", kill_on_drop: false }`
[INFO] [stderr]    Compiling h4x_core v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `file` is never read
[INFO] [stdout]   --> src/file/lock.rs:18:2
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct LockFile {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 17 |     path:      String,
[INFO] [stdout] 18 |     file:      File,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "49eed77298e252e0fe07f61362a725ad056ae316be325bbcd319cbfc156ba68b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49eed77298e252e0fe07f61362a725ad056ae316be325bbcd319cbfc156ba68b", kill_on_drop: false }`
[INFO] [stdout] 49eed77298e252e0fe07f61362a725ad056ae316be325bbcd319cbfc156ba68b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02a90b2aec821b07ed55a54ecb5eda8bde9d403625c56fdc7ae3ca29c083c995
[INFO] running `Command { std: "docker" "start" "-a" "02a90b2aec821b07ed55a54ecb5eda8bde9d403625c56fdc7ae3ca29c083c995", kill_on_drop: false }`
[INFO] [stdout] warning: field `file` is never read
[INFO] [stdout]   --> src/file/lock.rs:18:2
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct LockFile {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 17 |     path:      String,
[INFO] [stdout] 18 |     file:      File,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling h4x_core v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `file` is never read
[INFO] [stdout]   --> src/file/lock.rs:18:2
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct LockFile {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 17 |     path:      String,
[INFO] [stdout] 18 |     file:      File,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "02a90b2aec821b07ed55a54ecb5eda8bde9d403625c56fdc7ae3ca29c083c995", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02a90b2aec821b07ed55a54ecb5eda8bde9d403625c56fdc7ae3ca29c083c995", kill_on_drop: false }`
[INFO] [stdout] 02a90b2aec821b07ed55a54ecb5eda8bde9d403625c56fdc7ae3ca29c083c995
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f14c1a75b67ec14bf972206a18c5811cac831c4a62e7e8400f3ba8f09f087e7d
[INFO] running `Command { std: "docker" "start" "-a" "f14c1a75b67ec14bf972206a18c5811cac831c4a62e7e8400f3ba8f09f087e7d", kill_on_drop: false }`
[INFO] [stderr] warning: field `file` is never read
[INFO] [stderr]   --> src/file/lock.rs:18:2
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct LockFile {
[INFO] [stderr]    |            -------- field in this struct
[INFO] [stderr] 17 |     path:      String,
[INFO] [stderr] 18 |     file:      File,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `h4x_core` (lib) generated 1 warning
[INFO] [stderr] warning: `h4x_core` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/h4x_core-21abb273cb984ba6)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests h4x_core
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f14c1a75b67ec14bf972206a18c5811cac831c4a62e7e8400f3ba8f09f087e7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f14c1a75b67ec14bf972206a18c5811cac831c4a62e7e8400f3ba8f09f087e7d", kill_on_drop: false }`
[INFO] [stdout] f14c1a75b67ec14bf972206a18c5811cac831c4a62e7e8400f3ba8f09f087e7d