[INFO] fetching crate efficient-sm2 0.2.3...
[INFO] checking efficient-sm2-0.2.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate efficient-sm2 0.2.3 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate efficient-sm2 0.2.3 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 efficient-sm2 0.2.3
[INFO] finished tweaking crates.io crate efficient-sm2 0.2.3
[INFO] tweaked toml for crates.io crate efficient-sm2 0.2.3 written to /workspace/builds/worker-6-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 31 packages
[INFO] [stderr]       Adding libsm v0.5.1 (latest: v0.6.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libsm v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ed6ecd582bb160618d54e53cb092d3c61c840cdc51c794b8427b0822f61c38f4
[INFO] running `Command { std: "docker" "start" "-a" "ed6ecd582bb160618d54e53cb092d3c61c840cdc51c794b8427b0822f61c38f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed6ecd582bb160618d54e53cb092d3c61c840cdc51c794b8427b0822f61c38f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed6ecd582bb160618d54e53cb092d3c61c840cdc51c794b8427b0822f61c38f4", kill_on_drop: false }`
[INFO] [stdout] ed6ecd582bb160618d54e53cb092d3c61c840cdc51c794b8427b0822f61c38f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 05f12e3fdd4350e45f2b3b64e5a226b6fa6cfa3fddb53d21b82dec70808742d1
[INFO] running `Command { std: "docker" "start" "-a" "05f12e3fdd4350e45f2b3b64e5a226b6fa6cfa3fddb53d21b82dec70808742d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-bigint v0.4.4
[INFO] [stderr]     Checking yasna v0.5.2
[INFO] [stderr]     Checking libsm v0.5.1
[INFO] [stderr]     Checking efficient-sm2 v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `r_p` is never read
[INFO] [stdout]   --> src/sm2p256.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub struct CurveParams {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 93 |     pub r_p: [u64; 4],
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `r_p` is never read
[INFO] [stdout]   --> src/sm2p256.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub struct CurveParams {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 93 |     pub r_p: [u64; 4],
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.49s
[INFO] running `Command { std: "docker" "inspect" "05f12e3fdd4350e45f2b3b64e5a226b6fa6cfa3fddb53d21b82dec70808742d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05f12e3fdd4350e45f2b3b64e5a226b6fa6cfa3fddb53d21b82dec70808742d1", kill_on_drop: false }`
[INFO] [stdout] 05f12e3fdd4350e45f2b3b64e5a226b6fa6cfa3fddb53d21b82dec70808742d1
[INFO] checking efficient-sm2-0.2.3 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate efficient-sm2 0.2.3 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate efficient-sm2 0.2.3 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 crates.io crate efficient-sm2 0.2.3
[INFO] finished tweaking crates.io crate efficient-sm2 0.2.3
[INFO] tweaked toml for crates.io crate efficient-sm2 0.2.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e578b255eb9bc6e7d07ee5a9ad15272febeb7e5476d8f94508f253f2eba9e7f4
[INFO] running `Command { std: "docker" "start" "-a" "e578b255eb9bc6e7d07ee5a9ad15272febeb7e5476d8f94508f253f2eba9e7f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e578b255eb9bc6e7d07ee5a9ad15272febeb7e5476d8f94508f253f2eba9e7f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e578b255eb9bc6e7d07ee5a9ad15272febeb7e5476d8f94508f253f2eba9e7f4", kill_on_drop: false }`
[INFO] [stdout] e578b255eb9bc6e7d07ee5a9ad15272febeb7e5476d8f94508f253f2eba9e7f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 22bf8e68648942abcb86eccbb249e2158b15d052cea70525ecac5fb3e6cc6f2b
[INFO] running `Command { std: "docker" "start" "-a" "22bf8e68648942abcb86eccbb249e2158b15d052cea70525ecac5fb3e6cc6f2b", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-bigint v0.4.4
[INFO] [stderr]     Checking yasna v0.5.2
[INFO] [stderr]     Checking libsm v0.5.1
[INFO] [stderr]     Checking efficient-sm2 v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `r_p` is never read
[INFO] [stdout]   --> src/sm2p256.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub struct CurveParams {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 93 |     pub r_p: [u64; 4],
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `r_p` is never read
[INFO] [stdout]   --> src/sm2p256.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub struct CurveParams {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 93 |     pub r_p: [u64; 4],
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.81s
[INFO] running `Command { std: "docker" "inspect" "22bf8e68648942abcb86eccbb249e2158b15d052cea70525ecac5fb3e6cc6f2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22bf8e68648942abcb86eccbb249e2158b15d052cea70525ecac5fb3e6cc6f2b", kill_on_drop: false }`
[INFO] [stdout] 22bf8e68648942abcb86eccbb249e2158b15d052cea70525ecac5fb3e6cc6f2b