[INFO] fetching crate h4x_core 0.0.2...
[INFO] checking h4x_core-0.0.2 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate h4x_core 0.0.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate h4x_core 0.0.2 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c9430d07db3cd52a9ff20052128f042095dad61db86f55e13e9ebff4284813e
[INFO] running `Command { std: "docker" "start" "-a" "8c9430d07db3cd52a9ff20052128f042095dad61db86f55e13e9ebff4284813e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c9430d07db3cd52a9ff20052128f042095dad61db86f55e13e9ebff4284813e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c9430d07db3cd52a9ff20052128f042095dad61db86f55e13e9ebff4284813e", kill_on_drop: false }`
[INFO] [stdout] 8c9430d07db3cd52a9ff20052128f042095dad61db86f55e13e9ebff4284813e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 885d30247a8ee3ba5e74c0e08c82270c386f504270d77ccdbb6cf2bd0190fb8d
[INFO] running `Command { std: "docker" "start" "-a" "885d30247a8ee3ba5e74c0e08c82270c386f504270d77ccdbb6cf2bd0190fb8d", kill_on_drop: false }`
[INFO] [stderr]     Checking 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "885d30247a8ee3ba5e74c0e08c82270c386f504270d77ccdbb6cf2bd0190fb8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "885d30247a8ee3ba5e74c0e08c82270c386f504270d77ccdbb6cf2bd0190fb8d", kill_on_drop: false }`
[INFO] [stdout] 885d30247a8ee3ba5e74c0e08c82270c386f504270d77ccdbb6cf2bd0190fb8d
[INFO] checking h4x_core-0.0.2 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate h4x_core 0.0.2 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate h4x_core 0.0.2 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7996c3c0d7eff4239839ebb565250955df32a57ed20d2a3be2d512cd1ab6d49
[INFO] running `Command { std: "docker" "start" "-a" "d7996c3c0d7eff4239839ebb565250955df32a57ed20d2a3be2d512cd1ab6d49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7996c3c0d7eff4239839ebb565250955df32a57ed20d2a3be2d512cd1ab6d49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7996c3c0d7eff4239839ebb565250955df32a57ed20d2a3be2d512cd1ab6d49", kill_on_drop: false }`
[INFO] [stdout] d7996c3c0d7eff4239839ebb565250955df32a57ed20d2a3be2d512cd1ab6d49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fba2be96117316bab371f9f9c5b84721e58b962818e0260d5ec922bbbd151d62
[INFO] running `Command { std: "docker" "start" "-a" "fba2be96117316bab371f9f9c5b84721e58b962818e0260d5ec922bbbd151d62", kill_on_drop: false }`
[INFO] [stderr]     Checking 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "fba2be96117316bab371f9f9c5b84721e58b962818e0260d5ec922bbbd151d62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fba2be96117316bab371f9f9c5b84721e58b962818e0260d5ec922bbbd151d62", kill_on_drop: false }`
[INFO] [stdout] fba2be96117316bab371f9f9c5b84721e58b962818e0260d5ec922bbbd151d62