[INFO] fetching crate kurobako_problems 0.1.13...
[INFO] checking kurobako_problems-0.1.13 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate kurobako_problems 0.1.13 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate kurobako_problems 0.1.13 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 kurobako_problems 0.1.13
[INFO] finished tweaking crates.io crate kurobako_problems 0.1.13
[INFO] tweaked toml for crates.io crate kurobako_problems 0.1.13 written to /workspace/builds/worker-15/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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] bbfc79a8e59c3fb388a055dfcb00e33bbc3a8256bbb47664dc5fa4cb14750ee3
[INFO] running `Command { std: "docker" "start" "-a" "bbfc79a8e59c3fb388a055dfcb00e33bbc3a8256bbb47664dc5fa4cb14750ee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbfc79a8e59c3fb388a055dfcb00e33bbc3a8256bbb47664dc5fa4cb14750ee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbfc79a8e59c3fb388a055dfcb00e33bbc3a8256bbb47664dc5fa4cb14750ee3", kill_on_drop: false }`
[INFO] [stdout] bbfc79a8e59c3fb388a055dfcb00e33bbc3a8256bbb47664dc5fa4cb14750ee3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 47dfb4b131738a8090c0096a14095d31c8e5909003a3e4d705d651a4636e54f2
[INFO] running `Command { std: "docker" "start" "-a" "47dfb4b131738a8090c0096a14095d31c8e5909003a3e4d705d651a4636e54f2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
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[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling ryu v1.0.6
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[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling build_const v0.2.2
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[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
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[INFO] [stderr]    Compiling trackable_derive v1.0.0
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[INFO] [stderr]     Checking protobuf_codec v0.2.8
[INFO] [stderr]     Checking serde v1.0.130
[INFO] [stderr]     Checking kurobako_core v0.1.11
[INFO] [stderr]     Checking nasbench v0.1.2
[INFO] [stderr]     Checking kurobako_problems v0.1.13 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `encoding`
[INFO] [stdout]    --> src/nasbench.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 175 |     encoding: Encoding,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `encoding`
[INFO] [stdout]    --> src/nasbench.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 175 |     encoding: Encoding,
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.55s
[INFO] running `Command { std: "docker" "inspect" "47dfb4b131738a8090c0096a14095d31c8e5909003a3e4d705d651a4636e54f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47dfb4b131738a8090c0096a14095d31c8e5909003a3e4d705d651a4636e54f2", kill_on_drop: false }`
[INFO] [stdout] 47dfb4b131738a8090c0096a14095d31c8e5909003a3e4d705d651a4636e54f2