[INFO] fetching crate preexplorer 0.3.5...
[INFO] checking preexplorer-0.3.5 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate preexplorer 0.3.5 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate preexplorer 0.3.5 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate preexplorer 0.3.5
[INFO] finished tweaking crates.io crate preexplorer 0.3.5
[INFO] tweaked toml for crates.io crate preexplorer 0.3.5 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate preexplorer 0.3.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e910dd9dcd84e53cc0ee5a40a4c5443180e9120a25e8014d940072d4ce2a92a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9e910dd9dcd84e53cc0ee5a40a4c5443180e9120a25e8014d940072d4ce2a92a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e910dd9dcd84e53cc0ee5a40a4c5443180e9120a25e8014d940072d4ce2a92a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e910dd9dcd84e53cc0ee5a40a4c5443180e9120a25e8014d940072d4ce2a92a", kill_on_drop: false }`
[INFO] [stdout] 9e910dd9dcd84e53cc0ee5a40a4c5443180e9120a25e8014d940072d4ce2a92a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f187b658a2cef5008caf1aba5c8f6b27f85c4a2bba85ad74e53a97d66ce65dff
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f187b658a2cef5008caf1aba5c8f6b27f85c4a2bba85ad74e53a97d66ce65dff", 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] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking average v0.10.4
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking ndarray v0.13.0
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking preexplorer v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.86s
[INFO] running `Command { std: "docker" "inspect" "f187b658a2cef5008caf1aba5c8f6b27f85c4a2bba85ad74e53a97d66ce65dff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f187b658a2cef5008caf1aba5c8f6b27f85c4a2bba85ad74e53a97d66ce65dff", kill_on_drop: false }`
[INFO] [stdout] f187b658a2cef5008caf1aba5c8f6b27f85c4a2bba85ad74e53a97d66ce65dff