[INFO] fetching crate tracpls 0.3.1...
[INFO] checking tracpls-0.3.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate tracpls 0.3.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate tracpls 0.3.1
[INFO] finished tweaking crates.io crate tracpls 0.3.1
[INFO] tweaked toml for crates.io crate tracpls 0.3.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tracpls 0.3.1 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 tracpls 0.3.1 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a695e5c5fc44bca69aba3b057f0b6a4614ab462cfd18b3f8cc23955f20fca1b4
[INFO] running `Command { std: "docker" "start" "-a" "a695e5c5fc44bca69aba3b057f0b6a4614ab462cfd18b3f8cc23955f20fca1b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a695e5c5fc44bca69aba3b057f0b6a4614ab462cfd18b3f8cc23955f20fca1b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a695e5c5fc44bca69aba3b057f0b6a4614ab462cfd18b3f8cc23955f20fca1b4", kill_on_drop: false }`
[INFO] [stdout] a695e5c5fc44bca69aba3b057f0b6a4614ab462cfd18b3f8cc23955f20fca1b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 86a4d65104b8d0c89feb59476a78ed7f78779022cd897179db42401e19fa921e
[INFO] running `Command { std: "docker" "start" "-a" "86a4d65104b8d0c89feb59476a78ed7f78779022cd897179db42401e19fa921e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.7+1.45.0
[INFO] [stderr]    Compiling libz-sys v1.1.5
[INFO] [stderr]    Compiling curl-sys v0.4.53+curl-7.82.0
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]     Checking wyz v0.5.0
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]    Compiling curl v0.4.43
[INFO] [stderr]     Checking byte-slice-cast v1.2.1
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]    Compiling isahc v1.7.0
[INFO] [stderr]     Checking bitvec v1.0.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking sluice v0.5.5
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking castaway v0.1.2
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking uint v0.9.3
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking polling v2.2.0
[INFO] [stderr]     Checking clap_lex v0.1.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking fixed-hash v0.7.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling tracing-attributes v0.1.20
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.2
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]     Checking pin-project v1.0.10
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
[INFO] [stderr]    Compiling parity-scale-codec-derive v3.1.2
[INFO] [stderr]     Checking clap v3.1.10
[INFO] [stderr]     Checking parity-scale-codec v3.1.2
[INFO] [stderr]     Checking impl-serde v0.3.2
[INFO] [stderr]     Checking serde_json v1.0.79
[INFO] [stderr]     Checking impl-codec v0.6.0
[INFO] [stderr]     Checking primitive-types v0.11.1
[INFO] [stderr]     Checking evmscan v0.6.0
[INFO] [stderr]     Checking tracpls v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// Target contract address to get its smart contract code or ABI from
[INFO] [stdout] 13 | |     #[clap(long="address", short='a', required=true)]
[INFO] [stdout] 14 | |     pub address: 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/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     /// Output directory path to write content of files to. In case of --abi-only,
[INFO] [stdout] 30 | |     /// it will output into fixed filename of "abi.json" but at the supplied
[INFO] [stdout] 31 | |     /// output directory. For JSON-based code, it will use the contract name of
[INFO] [stdout] 32 | |     /// each file as the filename to write its content to.
[INFO] [stdout] 33 | |     #[clap(long="out-dir", required=false)]
[INFO] [stdout] 34 | |     pub out_dir_path: Option<String>,
[INFO] [stdout]    | |____________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | /     /// Which chain to work with.
[INFO] [stdout] 41 | |     /// Possible values are 'bsc', 'ethereum', and 'polygon'.
[INFO] [stdout] 42 | |     #[clap(long="chain", short='c', required=true, multiple_values=false)]
[INFO] [stdout] 43 | |     pub chain: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// Target contract address to get its smart contract code or ABI from
[INFO] [stdout] 13 | |     #[clap(long="address", short='a', required=true)]
[INFO] [stdout] 14 | |     pub address: 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/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     /// Output directory path to write content of files to. In case of --abi-only,
[INFO] [stdout] 30 | |     /// it will output into fixed filename of "abi.json" but at the supplied
[INFO] [stdout] 31 | |     /// output directory. For JSON-based code, it will use the contract name of
[INFO] [stdout] 32 | |     /// each file as the filename to write its content to.
[INFO] [stdout] 33 | |     #[clap(long="out-dir", required=false)]
[INFO] [stdout] 34 | |     pub out_dir_path: Option<String>,
[INFO] [stdout]    | |____________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | /     /// Which chain to work with.
[INFO] [stdout] 41 | |     /// Possible values are 'bsc', 'ethereum', and 'polygon'.
[INFO] [stdout] 42 | |     #[clap(long="chain", short='c', required=true, multiple_values=false)]
[INFO] [stdout] 43 | |     pub chain: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tracpls` (bin "tracpls") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `tracpls` (bin "tracpls" test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "86a4d65104b8d0c89feb59476a78ed7f78779022cd897179db42401e19fa921e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86a4d65104b8d0c89feb59476a78ed7f78779022cd897179db42401e19fa921e", kill_on_drop: false }`
[INFO] [stdout] 86a4d65104b8d0c89feb59476a78ed7f78779022cd897179db42401e19fa921e