[INFO] fetching crate bdecode 0.1.0...
[INFO] checking bdecode-0.1.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate bdecode 0.1.0 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate bdecode 0.1.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bdecode 0.1.0
[INFO] finished tweaking crates.io crate bdecode 0.1.0
[INFO] tweaked toml for crates.io crate bdecode 0.1.0 written to /workspace/builds/worker-49/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3fe630680d81ef74387af98b62dfda7d79ea47d9a1934891a020c3289f09c362
[INFO] running `Command { std: "docker" "start" "-a" "3fe630680d81ef74387af98b62dfda7d79ea47d9a1934891a020c3289f09c362", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fe630680d81ef74387af98b62dfda7d79ea47d9a1934891a020c3289f09c362", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fe630680d81ef74387af98b62dfda7d79ea47d9a1934891a020c3289f09c362", kill_on_drop: false }`
[INFO] [stdout] 3fe630680d81ef74387af98b62dfda7d79ea47d9a1934891a020c3289f09c362
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4104dbcab3413b34288cb2c7a7d7378a0abb26e26cd533fbc0dff2235db084d7
[INFO] running `Command { std: "docker" "start" "-a" "4104dbcab3413b34288cb2c7a7d7378a0abb26e26cd533fbc0dff2235db084d7", kill_on_drop: false }`
[INFO] [stderr] Compiling autocfg v1.0.1
[INFO] [stderr] Checking lazy_static v1.4.0
[INFO] [stderr] Compiling crossbeam-utils v0.8.5
[INFO] [stderr] Compiling semver v1.0.4
[INFO] [stderr] Compiling serde v1.0.130
[INFO] [stderr] Compiling memchr v2.4.1
[INFO] [stderr] Checking cfg-if v1.0.0
[INFO] [stderr] Compiling crossbeam-epoch v0.9.5
[INFO] [stderr] Compiling ryu v1.0.5
[INFO] [stderr] Compiling proc-macro2 v1.0.32
[INFO] [stderr] Checking scopeguard v1.1.0
[INFO] [stderr] Compiling unicode-xid v0.2.2
[INFO] [stderr] Compiling rayon-core v1.9.1
[INFO] [stderr] Checking either v1.6.1
[INFO] [stderr] Compiling syn v1.0.82
[INFO] [stderr] Checking itoa v0.4.8
[INFO] [stderr] Compiling serde_json v1.0.72
[INFO] [stderr] Checking tinyvec_macros v0.1.0
[INFO] [stderr] Checking unicode-width v0.1.9
[INFO] [stderr] Compiling serde_derive v1.0.130
[INFO] [stderr] Checking plotters-backend v0.3.2
[INFO] [stderr] Checking regex-automata v0.1.10
[INFO] [stderr] Checking regex-syntax v0.6.25
[INFO] [stderr] Checking bitflags v1.3.2
[INFO] [stderr] Checking matches v0.1.9
[INFO] [stderr] Checking half v1.8.2
[INFO] [stderr] Checking same-file v1.0.6
[INFO] [stderr] Checking oorandom v11.1.3
[INFO] [stderr] Checking unicode-bidi v0.3.7
[INFO] [stderr] Checking percent-encoding v2.1.0
[INFO] [stderr] Checking num_cpus v1.13.0
[INFO] [stderr] Checking atty v0.2.14
[INFO] [stderr] Checking tinyvec v1.5.1
[INFO] [stderr] Compiling memoffset v0.6.4
[INFO] [stderr] Compiling num-traits v0.2.14
[INFO] [stderr] Compiling rayon v1.5.1
[INFO] [stderr] Checking itertools v0.10.1
[INFO] [stderr] Checking walkdir v2.3.2
[INFO] [stderr] Checking form_urlencoded v1.0.1
[INFO] [stderr] Checking plotters-svg v0.3.1
[INFO] [stderr] Checking textwrap v0.11.0
[INFO] [stderr] Checking clap v2.33.3
[INFO] [stderr] Compiling rustc_version v0.4.0
[INFO] [stderr] Compiling quote v1.0.10
[INFO] [stderr] Checking unicode-normalization v0.1.19
[INFO] [stderr] Checking crossbeam-channel v0.5.1
[INFO] [stderr] Checking regex v1.5.4
[INFO] [stderr] Checking crossbeam-deque v0.8.1
[INFO] [stderr] Checking csv-core v0.1.10
[INFO] [stderr] Checking bdecode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] Compiling cast v0.2.7
[INFO] [stderr] Checking idna v0.2.3
[INFO] [stdout] warning: field is never read: `cached_lookup`
[INFO] [stdout] --> src/lib.rs:575:5
[INFO] [stdout] |
[INFO] [stdout] 575 | cached_lookup: Cell