[INFO] cloning repository https://github.com/eduardostuart/compacto
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eduardostuart/compacto" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feduardostuart%2Fcompacto", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feduardostuart%2Fcompacto'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1bd0c7b3204f3f0498c57d6397c87e70292d26e6
[INFO] checking eduardostuart/compacto against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feduardostuart%2Fcompacto" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/eduardostuart/compacto
[INFO] finished tweaking git repo https://github.com/eduardostuart/compacto
[INFO] tweaked toml for git repo https://github.com/eduardostuart/compacto written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/eduardostuart/compacto on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/eduardostuart/compacto 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78188c44d2bf7bae294e54d186d92c09f9f1cace4d0289ddaa6fd73dcff5966e
[INFO] running `Command { std: "docker" "start" "-a" "78188c44d2bf7bae294e54d186d92c09f9f1cace4d0289ddaa6fd73dcff5966e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78188c44d2bf7bae294e54d186d92c09f9f1cace4d0289ddaa6fd73dcff5966e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78188c44d2bf7bae294e54d186d92c09f9f1cace4d0289ddaa6fd73dcff5966e", kill_on_drop: false }`
[INFO] [stdout] 78188c44d2bf7bae294e54d186d92c09f9f1cace4d0289ddaa6fd73dcff5966e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d79061c01c9a7f67d32535e434cae0cfe97fe61e592cdce946c9b596f77d452
[INFO] running `Command { std: "docker" "start" "-a" "6d79061c01c9a7f67d32535e434cae0cfe97fe61e592cdce946c9b596f77d452", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]     Checking seahash v4.1.0
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking utf8-width v0.1.5
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking os_str_bytes v4.2.0
[INFO] [stderr]     Checking byte-unit v4.0.13
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.5
[INFO] [stderr]     Checking compacto v1.0.2 (/opt/rustwide/workdir/compacto)
[INFO] [stdout] warning: field `output` is never read
[INFO] [stdout]   --> compacto/src/compress.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct Compressor {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     output: Value,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Compressor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `output` is never read
[INFO] [stdout]  --> compacto/src/decompress.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Decompressor {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     output: Value,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Decompressor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `output` is never read
[INFO] [stdout]   --> compacto/src/compress.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct Compressor {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     output: Value,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Compressor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `output` is never read
[INFO] [stdout]  --> compacto/src/decompress.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Decompressor {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     output: Value,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Decompressor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking clap v3.0.0-beta.5
[INFO] [stderr]     Checking compacto-cli v1.0.2 (/opt/rustwide/workdir/compacto-cli)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> compacto-cli/src/cli.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub input: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> compacto-cli/src/cli.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub output: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> compacto-cli/src/cli.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub input: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> compacto-cli/src/cli.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub output: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `compacto-cli` (bin "compacto") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `compacto-cli` (bin "compacto" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "6d79061c01c9a7f67d32535e434cae0cfe97fe61e592cdce946c9b596f77d452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d79061c01c9a7f67d32535e434cae0cfe97fe61e592cdce946c9b596f77d452", kill_on_drop: false }`
[INFO] [stdout] 6d79061c01c9a7f67d32535e434cae0cfe97fe61e592cdce946c9b596f77d452