[INFO] fetching crate mazzaroth-rs-derive 0.8.1...
[INFO] checking mazzaroth-rs-derive-0.8.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate mazzaroth-rs-derive 0.8.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate mazzaroth-rs-derive 0.8.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mazzaroth-rs-derive 0.8.1
[INFO] finished tweaking crates.io crate mazzaroth-rs-derive 0.8.1
[INFO] tweaked toml for crates.io crate mazzaroth-rs-derive 0.8.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.0)
[INFO] [stderr]       Adding proc-macro2 v0.4.30 (latest: v1.0.79)
[INFO] [stderr]       Adding quote v0.6.13 (latest: v1.0.35)
[INFO] [stderr]       Adding syn v0.15.44 (latest: v2.0.58)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding unicode-xid v0.1.0 (latest: v0.2.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xdr-rs-serialize-derive v0.3.1
[INFO] [stderr]   Downloaded mazzaroth-xdr v0.8.2
[INFO] [stderr]   Downloaded xdr-rs-serialize v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd95994b4769798ba54d9f0a4892dc9b69218ec992c99a105001de47ce31b7af
[INFO] running `Command { std: "docker" "start" "-a" "fd95994b4769798ba54d9f0a4892dc9b69218ec992c99a105001de47ce31b7af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd95994b4769798ba54d9f0a4892dc9b69218ec992c99a105001de47ce31b7af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd95994b4769798ba54d9f0a4892dc9b69218ec992c99a105001de47ce31b7af", kill_on_drop: false }`
[INFO] [stdout] fd95994b4769798ba54d9f0a4892dc9b69218ec992c99a105001de47ce31b7af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07b1afa58886aa9bec22496280d0a6f5777552b560fc68f9bbd369def297d6bb
[INFO] running `Command { std: "docker" "start" "-a" "07b1afa58886aa9bec22496280d0a6f5777552b560fc68f9bbd369def297d6bb", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking proc-macro2 v0.4.30
[INFO] [stderr]     Checking xdr-rs-serialize v0.3.1
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]    Compiling xdr-rs-serialize-derive v0.3.1
[INFO] [stderr]     Checking mazzaroth-xdr v0.8.2
[INFO] [stderr]     Checking mazzaroth-rs-derive v0.8.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `quote` is imported redundantly
[INFO] [stdout]   --> src/contract.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout] 2  | use quote;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:75:1
[INFO] [stdout]    |
[INFO] [stdout] 75 | extern crate quote;
[INFO] [stdout]    | ------------------- the item `quote` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/contract.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use syn;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:73:1
[INFO] [stdout]    |
[INFO] [stdout] 73 | extern crate syn;
[INFO] [stdout]    | ----------------- the item `syn` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> src/json.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already imported by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `quote` is imported redundantly
[INFO] [stdout]   --> src/contract.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout] 2  | use quote;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:75:1
[INFO] [stdout]    |
[INFO] [stdout] 75 | extern crate quote;
[INFO] [stdout]    | ------------------- the item `quote` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/contract.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use syn;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:73:1
[INFO] [stdout]    |
[INFO] [stdout] 73 | extern crate syn;
[INFO] [stdout]    | ----------------- the item `syn` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> src/json.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already imported by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:140:69
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let mod_name = format!("mazzaroth_abi_impl_{}", &contract.name().clone());
[INFO] [stdout]     |                                                                     ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:140:69
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let mod_name = format!("mazzaroth_abi_impl_{}", &contract.name().clone());
[INFO] [stdout]     |                                                                     ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.91s
[INFO] running `Command { std: "docker" "inspect" "07b1afa58886aa9bec22496280d0a6f5777552b560fc68f9bbd369def297d6bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07b1afa58886aa9bec22496280d0a6f5777552b560fc68f9bbd369def297d6bb", kill_on_drop: false }`
[INFO] [stdout] 07b1afa58886aa9bec22496280d0a6f5777552b560fc68f9bbd369def297d6bb