[INFO] cloning repository https://github.com/jpopesculian/did-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jpopesculian/did-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjpopesculian%2Fdid-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjpopesculian%2Fdid-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13907962c1564167baf48970ef346f746bd9eddd
[INFO] checking jpopesculian/did-rs against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjpopesculian%2Fdid-rs" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jpopesculian/did-rs 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 git repo https://github.com/jpopesculian/did-rs
[INFO] finished tweaking git repo https://github.com/jpopesculian/did-rs
[INFO] tweaked toml for git repo https://github.com/jpopesculian/did-rs written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jpopesculian/did-rs 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_asn1_der v0.1.0
[INFO] [stderr]   Downloaded serde_derive v1.0.97
[INFO] [stderr]   Downloaded syn v0.15.40
[INFO] [stderr]   Downloaded serde v1.0.97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 40abb25d19920a3a8194bdd1d1d55ddcf21c05e9f21502171f5d1e72ade1f0f8
[INFO] running `Command { std: "docker" "start" "-a" "40abb25d19920a3a8194bdd1d1d55ddcf21c05e9f21502171f5d1e72ade1f0f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40abb25d19920a3a8194bdd1d1d55ddcf21c05e9f21502171f5d1e72ade1f0f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40abb25d19920a3a8194bdd1d1d55ddcf21c05e9f21502171f5d1e72ade1f0f8", kill_on_drop: false }`
[INFO] [stdout] 40abb25d19920a3a8194bdd1d1d55ddcf21c05e9f21502171f5d1e72ade1f0f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 6015e72c71e05701c106ffbc07b85d33c266bcd30bbd9533e765085bf74263f2
[INFO] running `Command { std: "docker" "start" "-a" "6015e72c71e05701c106ffbc07b85d33c266bcd30bbd9533e765085bf74263f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.40
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking regex-syntax v0.6.11
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking base58 v0.1.0
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking regex v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking serde_asn1_der v0.1.0
[INFO] [stderr]     Checking did v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `did` is never read
[INFO] [stdout]  --> src/did_url.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct DecentralizedIdentiferUrl {
[INFO] [stdout]   |            ------------------------- field in this struct
[INFO] [stdout] 6 |     did: DecentralizedIdentifer,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DecentralizedIdentiferUrl` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/did_url.rs:22:40
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct DecentralizedIdentiferParam(String, Option<String>);
[INFO] [stdout]    |            --------------------------- ^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DecentralizedIdentiferParam` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct DecentralizedIdentiferParam((), ());
[INFO] [stdout]    |                                        ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `did` is never read
[INFO] [stdout]  --> src/did_url.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct DecentralizedIdentiferUrl {
[INFO] [stdout]   |            ------------------------- field in this struct
[INFO] [stdout] 6 |     did: DecentralizedIdentifer,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DecentralizedIdentiferUrl` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/did_url.rs:22:40
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct DecentralizedIdentiferParam(String, Option<String>);
[INFO] [stdout]    |            --------------------------- ^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DecentralizedIdentiferParam` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct DecentralizedIdentiferParam((), ());
[INFO] [stdout]    |                                        ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.37s
[INFO] running `Command { std: "docker" "inspect" "6015e72c71e05701c106ffbc07b85d33c266bcd30bbd9533e765085bf74263f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6015e72c71e05701c106ffbc07b85d33c266bcd30bbd9533e765085bf74263f2", kill_on_drop: false }`
[INFO] [stdout] 6015e72c71e05701c106ffbc07b85d33c266bcd30bbd9533e765085bf74263f2
[INFO] checking jpopesculian/did-rs against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjpopesculian%2Fdid-rs" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jpopesculian/did-rs on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jpopesculian/did-rs
[INFO] finished tweaking git repo https://github.com/jpopesculian/did-rs
[INFO] tweaked toml for git repo https://github.com/jpopesculian/did-rs written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jpopesculian/did-rs 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 065f44d903f46a0ec80bfd4b85e41339927cd35a5745c49d4b830b433a27f77a
[INFO] running `Command { std: "docker" "start" "-a" "065f44d903f46a0ec80bfd4b85e41339927cd35a5745c49d4b830b433a27f77a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "065f44d903f46a0ec80bfd4b85e41339927cd35a5745c49d4b830b433a27f77a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "065f44d903f46a0ec80bfd4b85e41339927cd35a5745c49d4b830b433a27f77a", kill_on_drop: false }`
[INFO] [stdout] 065f44d903f46a0ec80bfd4b85e41339927cd35a5745c49d4b830b433a27f77a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 837ed2dfb5341a98a3d84f50d24bdcb6c33f0da0b9c4f93e373408c38d859c3b
[INFO] running `Command { std: "docker" "start" "-a" "837ed2dfb5341a98a3d84f50d24bdcb6c33f0da0b9c4f93e373408c38d859c3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.40
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking regex-syntax v0.6.11
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking base58 v0.1.0
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking regex v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking serde_asn1_der v0.1.0
[INFO] [stderr]     Checking did v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `did` is never read
[INFO] [stdout]  --> src/did_url.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct DecentralizedIdentiferUrl {
[INFO] [stdout]   |            ------------------------- field in this struct
[INFO] [stdout] 6 |     did: DecentralizedIdentifer,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DecentralizedIdentiferUrl` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/did_url.rs:22:40
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct DecentralizedIdentiferParam(String, Option<String>);
[INFO] [stdout]    |            --------------------------- ^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DecentralizedIdentiferParam` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct DecentralizedIdentiferParam((), ());
[INFO] [stdout]    |                                        ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `did` is never read
[INFO] [stdout]  --> src/did_url.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct DecentralizedIdentiferUrl {
[INFO] [stdout]   |            ------------------------- field in this struct
[INFO] [stdout] 6 |     did: DecentralizedIdentifer,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DecentralizedIdentiferUrl` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/did_url.rs:22:40
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct DecentralizedIdentiferParam(String, Option<String>);
[INFO] [stdout]    |            --------------------------- ^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DecentralizedIdentiferParam` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct DecentralizedIdentiferParam((), ());
[INFO] [stdout]    |                                        ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.06s
[INFO] running `Command { std: "docker" "inspect" "837ed2dfb5341a98a3d84f50d24bdcb6c33f0da0b9c4f93e373408c38d859c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "837ed2dfb5341a98a3d84f50d24bdcb6c33f0da0b9c4f93e373408c38d859c3b", kill_on_drop: false }`
[INFO] [stdout] 837ed2dfb5341a98a3d84f50d24bdcb6c33f0da0b9c4f93e373408c38d859c3b