[INFO] fetching crate wallet-metamask 0.3.0...
[INFO] testing wallet-metamask-0.3.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate wallet-metamask 0.3.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate wallet-metamask 0.3.0
[INFO] finished tweaking crates.io crate wallet-metamask 0.3.0
[INFO] tweaked toml for crates.io crate wallet-metamask 0.3.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate wallet-metamask 0.3.0 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 150 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.21.7 (available: v0.22.1)
[INFO] [stderr]       Adding inquire v0.6.2 (available: v0.9.1)
[INFO] [stderr]       Adding itertools v0.10.5 (available: v0.14.0)
[INFO] [stderr]       Adding mockall v0.11.4 (available: v0.13.1)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding rand_core v0.6.4 (available: v0.9.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded os_info v3.12.0
[INFO] [stderr]   Downloaded newline-converter v0.2.2
[INFO] [stderr]   Downloaded inquire v0.6.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2e8a5dc0e872648f364c31af5e2d87f85ea5d3988eebd5c09df4f579975bb45
[INFO] running `Command { std: "docker" "start" "-a" "b2e8a5dc0e872648f364c31af5e2d87f85ea5d3988eebd5c09df4f579975bb45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2e8a5dc0e872648f364c31af5e2d87f85ea5d3988eebd5c09df4f579975bb45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2e8a5dc0e872648f364c31af5e2d87f85ea5d3988eebd5c09df4f579975bb45", kill_on_drop: false }`
[INFO] [stdout] b2e8a5dc0e872648f364c31af5e2d87f85ea5d3988eebd5c09df4f579975bb45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0752407deac81050da2a577d8c9b47834d124c1cb1752221240c524d9221b3b9
[INFO] running `Command { std: "docker" "start" "-a" "0752407deac81050da2a577d8c9b47834d124c1cb1752221240c524d9221b3b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling predicates-core v1.0.9
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling termtree v0.5.1
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling base64ct v1.8.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling tracing-test-macro v0.2.5
[INFO] [stderr]    Compiling mockall_derive v0.11.4
[INFO] [stderr]    Compiling downcast v0.11.0
[INFO] [stderr]    Compiling fragile v2.0.1
[INFO] [stderr]    Compiling universal-hash v0.5.1
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling cipher v0.4.4
[INFO] [stderr]    Compiling predicates-tree v1.0.12
[INFO] [stderr]    Compiling polyval v0.6.2
[INFO] [stderr]    Compiling aead v0.5.2
[INFO] [stderr]    Compiling whoami v1.6.1
[INFO] [stderr]    Compiling password-hash v0.5.0
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling ghash v0.5.1
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling ctr v0.9.2
[INFO] [stderr]    Compiling signal-hook-mio v0.2.4
[INFO] [stderr]    Compiling aes v0.8.4
[INFO] [stderr]    Compiling newline-converter v0.2.2
[INFO] [stderr]    Compiling crossterm v0.25.0
[INFO] [stderr]    Compiling os_info v3.12.0
[INFO] [stderr]    Compiling pbkdf2 v0.12.2
[INFO] [stderr]    Compiling aes-gcm v0.10.3
[INFO] [stderr]    Compiling inquire v0.6.2
[INFO] [stderr]    Compiling matchers v0.2.0
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling tracing-subscriber v0.3.20
[INFO] [stderr]    Compiling predicates v2.1.5
[INFO] [stderr]    Compiling mockall v0.11.4
[INFO] [stderr]    Compiling tracing-test v0.2.5
[INFO] [stderr]    Compiling wallet-metamask v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `array_chunks`
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(array_chunks)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `array_chunks` found for reference `&[u8]` in the current scope
[INFO] [stdout]   --> src/password.rs:77:57
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let nonce_slice: [u8; 16] = *nonce_bytes.as_slice().array_chunks::<16>().next().unwrap();
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^ `&[u8]` is not an iterator
[INFO] [stdout]    |
[INFO] [stdout] help: call `.into_iter()` first
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let nonce_slice: [u8; 16] = *nonce_bytes.as_slice().into_iter().array_chunks::<16>().next().unwrap();
[INFO] [stdout]    |                                                         ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wallet-metamask` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0752407deac81050da2a577d8c9b47834d124c1cb1752221240c524d9221b3b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0752407deac81050da2a577d8c9b47834d124c1cb1752221240c524d9221b3b9", kill_on_drop: false }`
[INFO] [stdout] 0752407deac81050da2a577d8c9b47834d124c1cb1752221240c524d9221b3b9