[INFO] fetching crate rneko 1.3.0...
[INFO] checking rneko-1.3.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate rneko 1.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate rneko 1.3.0 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 rneko 1.3.0
[INFO] finished tweaking crates.io crate rneko 1.3.0
[INFO] tweaked toml for crates.io crate rneko 1.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate rneko 1.3.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded colorful v0.2.2
[INFO] [stderr]   Downloaded rustix v0.38.18
[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] 1ca2abc3a3e0ff8dcace589f0bcd0609bf97690bc552083d3e41505f9eda75fa
[INFO] running `Command { std: "docker" "start" "-a" "1ca2abc3a3e0ff8dcace589f0bcd0609bf97690bc552083d3e41505f9eda75fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ca2abc3a3e0ff8dcace589f0bcd0609bf97690bc552083d3e41505f9eda75fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ca2abc3a3e0ff8dcace589f0bcd0609bf97690bc552083d3e41505f9eda75fa", kill_on_drop: false }`
[INFO] [stdout] 1ca2abc3a3e0ff8dcace589f0bcd0609bf97690bc552083d3e41505f9eda75fa
[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] 0860c6a6313c098273619fd202542222a9f56d51e3932667bbd7957f316e5578
[INFO] running `Command { std: "docker" "start" "-a" "0860c6a6313c098273619fd202542222a9f56d51e3932667bbd7957f316e5578", kill_on_drop: false }`
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking socket2 v0.5.4
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling rustix v0.38.18
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking linux-raw-sys v0.4.10
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]    Compiling portable-atomic v1.4.3
[INFO] [stderr]     Checking console v0.15.7
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]     Checking openssl v0.10.57
[INFO] [stderr]     Checking termcolor v1.3.0
[INFO] [stderr]     Checking directories v5.0.1
[INFO] [stderr]     Checking colorful v0.2.2
[INFO] [stderr]     Checking tokio v1.33.0
[INFO] [stderr]     Checking indicatif v0.17.7
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking env_logger v0.10.1
[INFO] [stderr]     Checking native-tls v0.2.11
[INFO] [stderr]     Checking tokio-util v0.7.9
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.3.21
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking serde_json v1.0.107
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.22
[INFO] [stderr]     Checking rneko v1.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `artist_href` is never read
[INFO] [stdout]  --> src/api.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Neko {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 8 |     pub artist_href: String,
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Neko` 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: field `artist_href` is never read
[INFO] [stdout]  --> src/api.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Neko {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 8 |     pub artist_href: String,
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Neko` 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.69s
[INFO] running `Command { std: "docker" "inspect" "0860c6a6313c098273619fd202542222a9f56d51e3932667bbd7957f316e5578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0860c6a6313c098273619fd202542222a9f56d51e3932667bbd7957f316e5578", kill_on_drop: false }`
[INFO] [stdout] 0860c6a6313c098273619fd202542222a9f56d51e3932667bbd7957f316e5578
[INFO] checking rneko-1.3.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate rneko 1.3.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate rneko 1.3.0 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 rneko 1.3.0
[INFO] finished tweaking crates.io crate rneko 1.3.0
[INFO] tweaked toml for crates.io crate rneko 1.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate rneko 1.3.0 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4a5685f53bddf77214100e2ceabb8c38358afca7480915496272a71aed3d7f7f
[INFO] running `Command { std: "docker" "start" "-a" "4a5685f53bddf77214100e2ceabb8c38358afca7480915496272a71aed3d7f7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a5685f53bddf77214100e2ceabb8c38358afca7480915496272a71aed3d7f7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a5685f53bddf77214100e2ceabb8c38358afca7480915496272a71aed3d7f7f", kill_on_drop: false }`
[INFO] [stdout] 4a5685f53bddf77214100e2ceabb8c38358afca7480915496272a71aed3d7f7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2c690e055752b6e969939be312b8bd1a771f02869fa674368bede3a0d7fe4897
[INFO] running `Command { std: "docker" "start" "-a" "2c690e055752b6e969939be312b8bd1a771f02869fa674368bede3a0d7fe4897", kill_on_drop: false }`
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking socket2 v0.5.4
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling rustix v0.38.18
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking linux-raw-sys v0.4.10
[INFO] [stderr]    Compiling portable-atomic v1.4.3
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking console v0.15.7
[INFO] [stderr]     Checking openssl v0.10.57
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking ipnet v2.8.0
[INFO] [stderr]     Checking termcolor v1.3.0
[INFO] [stderr]     Checking directories v5.0.1
[INFO] [stderr]     Checking tokio v1.33.0
[INFO] [stderr]     Checking colorful v0.2.2
[INFO] [stderr]     Checking indicatif v0.17.7
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking native-tls v0.2.11
[INFO] [stderr]     Checking env_logger v0.10.1
[INFO] [stderr]     Checking tokio-util v0.7.9
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.3.21
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking serde_json v1.0.107
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.22
[INFO] [stderr]     Checking rneko v1.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `artist_href` is never read
[INFO] [stdout]  --> src/api.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Neko {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 8 |     pub artist_href: String,
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Neko` 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `artist_href` is never read
[INFO] [stdout]  --> src/api.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Neko {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 8 |     pub artist_href: String,
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Neko` 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.20s
[INFO] running `Command { std: "docker" "inspect" "2c690e055752b6e969939be312b8bd1a771f02869fa674368bede3a0d7fe4897", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c690e055752b6e969939be312b8bd1a771f02869fa674368bede3a0d7fe4897", kill_on_drop: false }`
[INFO] [stdout] 2c690e055752b6e969939be312b8bd1a771f02869fa674368bede3a0d7fe4897