[INFO] fetching crate kurobako_problems 0.1.13...
[INFO] checking kurobako_problems-0.1.13 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate kurobako_problems 0.1.13 into /workspace/builds/worker-97/source
[INFO] validating manifest of crates.io crate kurobako_problems 0.1.13 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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-97/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f6c104ac7b96d37ffef77b9b4d720896ade60c8374c14b165e9f25445916727
[INFO] running `Command { std: "docker" "start" "-a" "2f6c104ac7b96d37ffef77b9b4d720896ade60c8374c14b165e9f25445916727", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f6c104ac7b96d37ffef77b9b4d720896ade60c8374c14b165e9f25445916727", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f6c104ac7b96d37ffef77b9b4d720896ade60c8374c14b165e9f25445916727", kill_on_drop: false }`
[INFO] [stdout] 2f6c104ac7b96d37ffef77b9b4d720896ade60c8374c14b165e9f25445916727
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a215fd7b9675c0dd0b314b483ad7dcdac913b1f1cbdf8942504fde8ceaa21cd
[INFO] running `Command { std: "docker" "start" "-a" "6a215fd7b9675c0dd0b314b483ad7dcdac913b1f1cbdf8942504fde8ceaa21cd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking either v1.6.1
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[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling build_const v0.2.2
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[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling rayon v1.5.1
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[INFO] [stderr]    Compiling rlua v0.17.1
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[INFO] [stderr]     Checking rand_core v0.6.3
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[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
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[INFO] [stderr]     Checking rand v0.7.3
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[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling trackable_derive v1.0.0
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]     Checking trackable v1.2.0
[INFO] [stderr]     Checking trackable v0.2.24
[INFO] [stderr]     Checking bytecodec v0.4.15
[INFO] [stderr]     Checking hdf5file v0.1.1
[INFO] [stderr]     Checking thiserror v1.0.29
[INFO] [stderr]     Checking structopt v0.3.23
[INFO] [stderr]     Checking randomforest v0.1.6
[INFO] [stderr]     Checking protobuf_codec v0.2.8
[INFO] [stderr]     Checking serde_json v1.0.68
[INFO] [stderr]     Checking nasbench v0.1.2
[INFO] [stderr]     Checking kurobako_core v0.1.11
[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 59.52s
[INFO] running `Command { std: "docker" "inspect" "6a215fd7b9675c0dd0b314b483ad7dcdac913b1f1cbdf8942504fde8ceaa21cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a215fd7b9675c0dd0b314b483ad7dcdac913b1f1cbdf8942504fde8ceaa21cd", kill_on_drop: false }`
[INFO] [stdout] 6a215fd7b9675c0dd0b314b483ad7dcdac913b1f1cbdf8942504fde8ceaa21cd