[INFO] fetching crate blackbox_core 0.1.1...
[INFO] checking blackbox_core-0.1.1 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate blackbox_core 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate blackbox_core 0.1.1 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blackbox_core 0.1.1
[INFO] finished tweaking crates.io crate blackbox_core 0.1.1
[INFO] tweaked toml for crates.io crate blackbox_core 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "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 linkme-impl v0.3.25
[INFO] [stderr]   Downloaded linkme v0.3.25
[INFO] [stderr]   Downloaded blackbox_core_codegen v0.1.1
[INFO] [stderr]   Downloaded blackbox_cast v0.1.1
[INFO] [stderr]   Downloaded blackbox_cast_codegen v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f70f32055bb7fc59d1ee8aaa6e37a31254b0361ff4a6de1ce9aaea407ce3ef85
[INFO] running `Command { std: "docker" "start" "-a" "f70f32055bb7fc59d1ee8aaa6e37a31254b0361ff4a6de1ce9aaea407ce3ef85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f70f32055bb7fc59d1ee8aaa6e37a31254b0361ff4a6de1ce9aaea407ce3ef85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f70f32055bb7fc59d1ee8aaa6e37a31254b0361ff4a6de1ce9aaea407ce3ef85", kill_on_drop: false }`
[INFO] [stdout] f70f32055bb7fc59d1ee8aaa6e37a31254b0361ff4a6de1ce9aaea407ce3ef85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f46976103fd62063946348e814b9d9e763ccf794fb9270a2082b08bec343e7f0
[INFO] running `Command { std: "docker" "start" "-a" "f46976103fd62063946348e814b9d9e763ccf794fb9270a2082b08bec343e7f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling blackbox_core_codegen v0.1.1
[INFO] [stderr]     Checking chrono v0.4.35
[INFO] [stderr]     Checking uuid v1.7.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling blackbox_cast_codegen v0.1.1
[INFO] [stderr]    Compiling linkme-impl v0.3.25
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking linkme v0.3.25
[INFO] [stderr]     Checking blackbox_cast v0.1.1
[INFO] [stderr]     Checking blackbox_core v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/lazy.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Lazy<T>(Arc<T>);
[INFO] [stdout]   |            ----    ^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Lazy<T>(());
[INFO] [stdout]   |                    ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/lazy.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Lazy<T>(Arc<T>);
[INFO] [stdout]   |            ----    ^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Lazy<T>(());
[INFO] [stdout]   |                    ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.07s
[INFO] running `Command { std: "docker" "inspect" "f46976103fd62063946348e814b9d9e763ccf794fb9270a2082b08bec343e7f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f46976103fd62063946348e814b9d9e763ccf794fb9270a2082b08bec343e7f0", kill_on_drop: false }`
[INFO] [stdout] f46976103fd62063946348e814b9d9e763ccf794fb9270a2082b08bec343e7f0
[INFO] checking blackbox_core-0.1.1 against try#bfe97fcae016881ad333f0ff8cea2cadb9cf136c for pr-121848
[INFO] extracting crate blackbox_core 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate blackbox_core 0.1.1 on toolchain bfe97fcae016881ad333f0ff8cea2cadb9cf136c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blackbox_core 0.1.1
[INFO] finished tweaking crates.io crate blackbox_core 0.1.1
[INFO] tweaked toml for crates.io crate blackbox_core 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f146723238a99f30b631fe9b4e7119ad9e6d7337b3ea16edba4b3d6dd21ba2b7
[INFO] running `Command { std: "docker" "start" "-a" "f146723238a99f30b631fe9b4e7119ad9e6d7337b3ea16edba4b3d6dd21ba2b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f146723238a99f30b631fe9b4e7119ad9e6d7337b3ea16edba4b3d6dd21ba2b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f146723238a99f30b631fe9b4e7119ad9e6d7337b3ea16edba4b3d6dd21ba2b7", kill_on_drop: false }`
[INFO] [stdout] f146723238a99f30b631fe9b4e7119ad9e6d7337b3ea16edba4b3d6dd21ba2b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa05244f0b38e7636e8a31239620689e397fcf1e7c82e8e73c26004bdf8ad62b
[INFO] running `Command { std: "docker" "start" "-a" "aa05244f0b38e7636e8a31239620689e397fcf1e7c82e8e73c26004bdf8ad62b", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling blackbox_core_codegen v0.1.1
[INFO] [stderr]     Checking chrono v0.4.35
[INFO] [stderr]     Checking uuid v1.7.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling blackbox_cast_codegen v0.1.1
[INFO] [stderr]    Compiling linkme-impl v0.3.25
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking linkme v0.3.25
[INFO] [stderr]     Checking blackbox_cast v0.1.1
[INFO] [stderr]     Checking blackbox_core v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/lazy.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Lazy<T>(Arc<T>);
[INFO] [stdout]   |            ----    ^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Lazy<T>(());
[INFO] [stdout]   |                    ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/lazy.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Lazy<T>(Arc<T>);
[INFO] [stdout]   |            ----    ^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Lazy<T>(());
[INFO] [stdout]   |                    ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.19s
[INFO] running `Command { std: "docker" "inspect" "aa05244f0b38e7636e8a31239620689e397fcf1e7c82e8e73c26004bdf8ad62b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa05244f0b38e7636e8a31239620689e397fcf1e7c82e8e73c26004bdf8ad62b", kill_on_drop: false }`
[INFO] [stdout] aa05244f0b38e7636e8a31239620689e397fcf1e7c82e8e73c26004bdf8ad62b
