[INFO] fetching crate flumedb 0.1.4...
[INFO] checking flumedb-0.1.4 against master#430feb24a46993e5073c1bb1b39da190d83fa2bf for pr-78363
[INFO] extracting crate flumedb 0.1.4 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate flumedb 0.1.4 on toolchain 430feb24a46993e5073c1bb1b39da190d83fa2bf
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flumedb 0.1.4
[INFO] finished tweaking crates.io crate flumedb 0.1.4
[INFO] tweaked toml for crates.io crate flumedb 0.1.4 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "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" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0aff38dd90e798a86762346380d1f2d755a5efdb105949a2667d94c2ed8e88c3
[INFO] running `Command { std: "docker" "start" "-a" "0aff38dd90e798a86762346380d1f2d755a5efdb105949a2667d94c2ed8e88c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0aff38dd90e798a86762346380d1f2d755a5efdb105949a2667d94c2ed8e88c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0aff38dd90e798a86762346380d1f2d755a5efdb105949a2667d94c2ed8e88c3", kill_on_drop: false }`
[INFO] [stdout] 0aff38dd90e798a86762346380d1f2d755a5efdb105949a2667d94c2ed8e88c3
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64e4cafdf93e6967a3cc406a32a11ebe86196837f0e3760543f1f6d1cfd6ff49
[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" "64e4cafdf93e6967a3cc406a32a11ebe86196837f0e3760543f1f6d1cfd6ff49", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking signature v1.2.2
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking object v0.21.1
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking buffered_offset_reader v0.6.0
[INFO] [stderr]     Checking oorandom v11.1.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking bidir_iter v0.2.1
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking ed25519 v1.0.3
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking itertools v0.9.0
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[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking atty v0.2.14
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[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking miniz_oxide v0.4.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking rand_core v0.5.1
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[INFO] [stderr]     Checking chrono v0.4.19
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[INFO] [stderr]     Checking aead v0.3.2
[INFO] [stderr]     Checking crypto-mac v0.9.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking poly1305 v0.6.1
[INFO] [stderr]     Checking hmac v0.9.0
[INFO] [stderr]     Checking sha2 v0.9.1
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[INFO] [stderr]     Checking backtrace v0.3.53
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking serde_cbor v0.10.2
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]    Compiling zerocopy-derive v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking zeroize v1.1.1
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking curve25519-dalek v3.0.0
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[INFO] [stderr]     Checking xsalsa20poly1305 v0.4.2
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[INFO] [stderr]     Checking x25519-dalek v1.1.0
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[INFO] [stderr]     Checking ssb-crypto v0.2.1
[INFO] [stderr]     Checking ssb-multiformats v0.4.0
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stderr]     Checking flumedb v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> benches/bench.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `forward` found for struct `Forward<OffsetLogIter<u32>>` in the current scope
[INFO] [stdout]    --> benches/bench.rs:111:34
[INFO] [stdout]     |
[INFO] [stdout] 111 |                 let count = iter.forward().count();
[INFO] [stdout]     |                                  ^^^^^^^ method not found in `Forward<OffsetLogIter<u32>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `iter_at_offset` found for struct `flumedb::OffsetLog<u32>` in the current scope
[INFO] [stdout]    --> benches/bench.rs:124:20
[INFO] [stdout]     |
[INFO] [stdout] 124 |             || log.iter_at_offset(log.end()),
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^ method not found in `flumedb::OffsetLog<u32>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 4   | use crate::flumedb::IterAtOffset;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `forward` found for struct `Forward<OffsetLogIter<u32>>` in the current scope
[INFO] [stdout]    --> benches/bench.rs:142:22
[INFO] [stdout]     |
[INFO] [stdout] 142 |                     .forward()
[INFO] [stdout]     |                      ^^^^^^^ method not found in `Forward<OffsetLogIter<u32>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flumedb`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "64e4cafdf93e6967a3cc406a32a11ebe86196837f0e3760543f1f6d1cfd6ff49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64e4cafdf93e6967a3cc406a32a11ebe86196837f0e3760543f1f6d1cfd6ff49", kill_on_drop: false }`
[INFO] [stdout] 64e4cafdf93e6967a3cc406a32a11ebe86196837f0e3760543f1f6d1cfd6ff49