[INFO] cloning repository https://github.com/hch12907/dynners
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hch12907/dynners" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhch12907%2Fdynners", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhch12907%2Fdynners'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cafb170332cbb99d6a7d492130fd7a6351fcd7fd
[INFO] checking hch12907/dynners against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhch12907%2Fdynners" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hch12907/dynners 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/hch12907/dynners
[INFO] finished tweaking git repo https://github.com/hch12907/dynners
[INFO] tweaked toml for git repo https://github.com/hch12907/dynners written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hch12907/dynners 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]  Downloading crates ...
[INFO] [stderr]   Downloaded curl v0.4.44
[INFO] [stderr]   Downloaded winnow v0.5.32
[INFO] [stderr]   Downloaded curl-sys v0.4.70+curl-8.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 23127c9251b13a21670be762f3967ee9c4747efae727f8ef52a051936193d930
[INFO] running `Command { std: "docker" "start" "-a" "23127c9251b13a21670be762f3967ee9c4747efae727f8ef52a051936193d930", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23127c9251b13a21670be762f3967ee9c4747efae727f8ef52a051936193d930", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23127c9251b13a21670be762f3967ee9c4747efae727f8ef52a051936193d930", kill_on_drop: false }`
[INFO] [stdout] 23127c9251b13a21670be762f3967ee9c4747efae727f8ef52a051936193d930
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 60602e0e36f482130647a95d6237a4cb72f24aed0d92a97acfc1c847937a6959
[INFO] running `Command { std: "docker" "start" "-a" "60602e0e36f482130647a95d6237a4cb72f24aed0d92a97acfc1c847937a6959", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling rustls v0.21.10
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking unicode-bidi v0.3.14
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]     Checking winnow v0.5.32
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking webpki-roots v0.25.3
[INFO] [stderr]     Checking data-encoding v2.5.0
[INFO] [stderr]     Checking rustls-pemfile v1.0.4
[INFO] [stderr]     Checking rustls-native-certs v0.6.3
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]    Compiling ring v0.17.7
[INFO] [stderr]     Checking serde_spanned v0.6.5
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking toml_edit v0.21.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]    Compiling serde_repr v0.1.18
[INFO] [stderr]     Checking thiserror v1.0.56
[INFO] [stderr]     Checking toml v0.8.8
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking ureq v2.9.1
[INFO] [stderr]     Checking dynners v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `ureq` is imported redundantly
[INFO] [stdout]  --> src/http/ureq_backend.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ureq;
[INFO] [stdout]   |     ^^^^ the item `ureq` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/ip/interface.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use libc;
[INFO] [stdout]    |         ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ureq` is imported redundantly
[INFO] [stdout]  --> src/http/ureq_backend.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ureq;
[INFO] [stdout]   |     ^^^^ the item `ureq` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/ip/interface.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use libc;
[INFO] [stdout]    |         ^^^^ the item `libc` is already defined by prelude
[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 19.53s
[INFO] running `Command { std: "docker" "inspect" "60602e0e36f482130647a95d6237a4cb72f24aed0d92a97acfc1c847937a6959", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60602e0e36f482130647a95d6237a4cb72f24aed0d92a97acfc1c847937a6959", kill_on_drop: false }`
[INFO] [stdout] 60602e0e36f482130647a95d6237a4cb72f24aed0d92a97acfc1c847937a6959
[INFO] checking hch12907/dynners against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhch12907%2Fdynners" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hch12907/dynners 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/hch12907/dynners
[INFO] finished tweaking git repo https://github.com/hch12907/dynners
[INFO] tweaked toml for git repo https://github.com/hch12907/dynners written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/hch12907/dynners 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-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e4561d4583c49dfa38fed7f0321e662e22d4ec59e1efec709dfa48b84bba186
[INFO] running `Command { std: "docker" "start" "-a" "7e4561d4583c49dfa38fed7f0321e662e22d4ec59e1efec709dfa48b84bba186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e4561d4583c49dfa38fed7f0321e662e22d4ec59e1efec709dfa48b84bba186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e4561d4583c49dfa38fed7f0321e662e22d4ec59e1efec709dfa48b84bba186", kill_on_drop: false }`
[INFO] [stdout] 7e4561d4583c49dfa38fed7f0321e662e22d4ec59e1efec709dfa48b84bba186
[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" "-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] ec451fce63e8d0dc37e22617a78ba4c0aefa36990d61fc39f62b7bb4e5f050da
[INFO] running `Command { std: "docker" "start" "-a" "ec451fce63e8d0dc37e22617a78ba4c0aefa36990d61fc39f62b7bb4e5f050da", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking unicode-bidi v0.3.14
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]    Compiling rustls v0.21.10
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking winnow v0.5.32
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking webpki-roots v0.25.3
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking data-encoding v2.5.0
[INFO] [stderr]     Checking rustls-pemfile v1.0.4
[INFO] [stderr]     Checking rustls-native-certs v0.6.3
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]    Compiling ring v0.17.7
[INFO] [stderr]     Checking serde_spanned v0.6.5
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking toml_edit v0.21.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]    Compiling serde_repr v0.1.18
[INFO] [stderr]     Checking toml v0.8.8
[INFO] [stderr]     Checking thiserror v1.0.56
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking ureq v2.9.1
[INFO] [stderr]     Checking dynners v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `ureq` is imported redundantly
[INFO] [stdout]  --> src/http/ureq_backend.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ureq;
[INFO] [stdout]   |     ^^^^ the item `ureq` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/ip/interface.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use libc;
[INFO] [stdout]    |         ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ureq` is imported redundantly
[INFO] [stdout]  --> src/http/ureq_backend.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ureq;
[INFO] [stdout]   |     ^^^^ the item `ureq` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/ip/interface.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use libc;
[INFO] [stdout]    |         ^^^^ the item `libc` is already defined by prelude
[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 13.36s
[INFO] running `Command { std: "docker" "inspect" "ec451fce63e8d0dc37e22617a78ba4c0aefa36990d61fc39f62b7bb4e5f050da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec451fce63e8d0dc37e22617a78ba4c0aefa36990d61fc39f62b7bb4e5f050da", kill_on_drop: false }`
[INFO] [stdout] ec451fce63e8d0dc37e22617a78ba4c0aefa36990d61fc39f62b7bb4e5f050da