[INFO] fetching crate cargo-alias 0.2.2...
[INFO] checking cargo-alias-0.2.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate cargo-alias 0.2.2 into /workspace/builds/worker-0-tc2/source
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate cargo-alias 0.2.2
[INFO] finished tweaking crates.io crate cargo-alias 0.2.2
[INFO] tweaked toml for crates.io crate cargo-alias 0.2.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cargo-alias 0.2.2 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 crates.io crate cargo-alias 0.2.2 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 70805b5ea699c9fef3b853239a6c97ad896359b6b405e66456fae2b33bf107ca
[INFO] running `Command { std: "docker" "start" "-a" "70805b5ea699c9fef3b853239a6c97ad896359b6b405e66456fae2b33bf107ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70805b5ea699c9fef3b853239a6c97ad896359b6b405e66456fae2b33bf107ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70805b5ea699c9fef3b853239a6c97ad896359b6b405e66456fae2b33bf107ca", kill_on_drop: false }`
[INFO] [stdout] 70805b5ea699c9fef3b853239a6c97ad896359b6b405e66456fae2b33bf107ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e4bc5c6e159204b4b89a57639c34563d54359667e391cbaf7ea75ec4f9277583
[INFO] running `Command { std: "docker" "start" "-a" "e4bc5c6e159204b4b89a57639c34563d54359667e391cbaf7ea75ec4f9277583", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking combine v4.6.4
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]     Checking clap v3.1.15
[INFO] [stderr]     Checking toml_edit v0.14.4
[INFO] [stderr]     Checking cargo-alias v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/bin/cargo-alias.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     /// Alias to define. Should be in the form name='command list'
[INFO] [stdout] 18 | |     alias: Option<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<std::string::String, Infallible>
[INFO] [stdout]   --> src/bin/cargo-unalias.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     /// Name of alias to delete
[INFO] [stdout] 17 | |     alias: String,
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-alias` (bin "cargo-alias") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `cargo-alias` (bin "cargo-unalias") due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/bin/cargo-unalias.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     /// Name of alias to delete
[INFO] [stdout] 17 | |     alias: String,
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-alias` (bin "cargo-unalias" test) due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/bin/cargo-alias.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     /// Alias to define. Should be in the form name='command list'
[INFO] [stdout] 18 | |     alias: Option<String>,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-alias` (bin "cargo-alias" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e4bc5c6e159204b4b89a57639c34563d54359667e391cbaf7ea75ec4f9277583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4bc5c6e159204b4b89a57639c34563d54359667e391cbaf7ea75ec4f9277583", kill_on_drop: false }`
[INFO] [stdout] e4bc5c6e159204b4b89a57639c34563d54359667e391cbaf7ea75ec4f9277583