[INFO] fetching crate nu_plugin_binaryview 0.44.0...
[INFO] checking nu_plugin_binaryview-0.44.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate nu_plugin_binaryview 0.44.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate nu_plugin_binaryview 0.44.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nu_plugin_binaryview 0.44.0
[INFO] finished tweaking crates.io crate nu_plugin_binaryview 0.44.0
[INFO] tweaked toml for crates.io crate nu_plugin_binaryview 0.44.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate nu_plugin_binaryview 0.44.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nu-errors v0.44.0
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[INFO] [stderr]   Downloaded serde_bytes v0.11.5
[INFO] [stderr]   Downloaded chrono-humanize v0.2.1
[INFO] [stderr]   Downloaded nu-plugin v0.44.0
[INFO] [stderr]   Downloaded byte-unit v4.0.13
[INFO] [stderr]   Downloaded nu-ansi-term v0.44.0
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[INFO] [stderr]   Downloaded nu-pretty-hex v0.44.0
[INFO] [stderr]   Downloaded rawkey v0.1.3
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d9855e71ce720bde448780ffd28e3eb041eb3d025d6cc7fb18f3dd0deb49f16
[INFO] running `Command { std: "docker" "start" "-a" "8d9855e71ce720bde448780ffd28e3eb041eb3d025d6cc7fb18f3dd0deb49f16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d9855e71ce720bde448780ffd28e3eb041eb3d025d6cc7fb18f3dd0deb49f16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d9855e71ce720bde448780ffd28e3eb041eb3d025d6cc7fb18f3dd0deb49f16", kill_on_drop: false }`
[INFO] [stdout] 8d9855e71ce720bde448780ffd28e3eb041eb3d025d6cc7fb18f3dd0deb49f16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54f88832d172a6871278bdc8825b8fc4f939b5f3ef16ff0a99c1fdf766bad087
[INFO] running `Command { std: "docker" "start" "-a" "54f88832d172a6871278bdc8825b8fc4f939b5f3ef16ff0a99c1fdf766bad087", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling num-traits v0.2.14
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[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling serde_json v1.0.78
[INFO] [stderr]     Checking linked-hash-map v0.5.4
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[INFO] [stderr]     Checking nu-plugin v0.44.0
[INFO] [stderr]     Checking nu_plugin_binaryview v0.44.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `since_last_button` is never read
[INFO] [stdout]   --> src/binaryview.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct RenderContext {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub since_last_button: Vec<usize>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `since_last_button` is never read
[INFO] [stdout]   --> src/binaryview.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct RenderContext {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub since_last_button: Vec<usize>,
[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` profile [unoptimized + debuginfo] target(s) in 9.70s
[INFO] running `Command { std: "docker" "inspect" "54f88832d172a6871278bdc8825b8fc4f939b5f3ef16ff0a99c1fdf766bad087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54f88832d172a6871278bdc8825b8fc4f939b5f3ef16ff0a99c1fdf766bad087", kill_on_drop: false }`
[INFO] [stdout] 54f88832d172a6871278bdc8825b8fc4f939b5f3ef16ff0a99c1fdf766bad087