[INFO] fetching crate icx-cert 0.31.0...
[INFO] checking icx-cert-0.31.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate icx-cert 0.31.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate icx-cert 0.31.0 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 icx-cert 0.31.0
[INFO] finished tweaking crates.io crate icx-cert 0.31.0
[INFO] tweaked toml for crates.io crate icx-cert 0.31.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate icx-cert 0.31.0 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]  Downloading crates ...
[INFO] [stderr]   Downloaded ic-certification v1.2.0
[INFO] [stderr]   Downloaded anstyle v1.0.3
[INFO] [stderr]   Downloaded serde_derive v1.0.185
[INFO] [stderr]   Downloaded reqwest v0.11.19
[INFO] [stderr]   Downloaded serde v1.0.185
[INFO] [stderr]   Downloaded rustls-webpki v0.101.4
[INFO] [stderr]   Downloaded syn v2.0.32
[INFO] [stderr]   Downloaded time v0.3.29
[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] 52517079ccfe420f95e515690c51ca2c5f6e20597ec9019741caa2617c8a52df
[INFO] running `Command { std: "docker" "start" "-a" "52517079ccfe420f95e515690c51ca2c5f6e20597ec9019741caa2617c8a52df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52517079ccfe420f95e515690c51ca2c5f6e20597ec9019741caa2617c8a52df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52517079ccfe420f95e515690c51ca2c5f6e20597ec9019741caa2617c8a52df", kill_on_drop: false }`
[INFO] [stdout] 52517079ccfe420f95e515690c51ca2c5f6e20597ec9019741caa2617c8a52df
[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] 66833d8085bb68070e1de10aea37dd6e81b136588976b85b36495bec65303fd3
[INFO] running `Command { std: "docker" "start" "-a" "66833d8085bb68070e1de10aea37dd6e81b136588976b85b36495bec65303fd3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling serde v1.0.185
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling rustls v0.21.6
[INFO] [stderr]     Checking anstyle v1.0.3
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking deranged v0.3.8
[INFO] [stderr]     Checking rustls-pemfile v1.0.3
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking webpki-roots v0.25.2
[INFO] [stderr]     Checking leb128 v0.2.5
[INFO] [stderr]    Compiling syn v2.0.32
[INFO] [stderr]     Checking anstream v0.6.4
[INFO] [stderr]     Checking clap_builder v4.4.6
[INFO] [stderr]     Checking time v0.3.29
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.3
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling serde_derive v1.0.185
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling clap_derive v4.4.2
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking rustls-webpki v0.101.4
[INFO] [stderr]     Checking clap v4.4.6
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking h2 v0.3.21
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking serde_bytes v0.11.12
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking ic-certification v1.2.0
[INFO] [stderr]     Checking hyper-rustls v0.24.1
[INFO] [stderr]     Checking reqwest v0.11.19
[INFO] [stderr]     Checking icx-cert v0.31.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.49s
[INFO] running `Command { std: "docker" "inspect" "66833d8085bb68070e1de10aea37dd6e81b136588976b85b36495bec65303fd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66833d8085bb68070e1de10aea37dd6e81b136588976b85b36495bec65303fd3", kill_on_drop: false }`
[INFO] [stdout] 66833d8085bb68070e1de10aea37dd6e81b136588976b85b36495bec65303fd3
[INFO] checking icx-cert-0.31.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate icx-cert 0.31.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate icx-cert 0.31.0 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate icx-cert 0.31.0
[INFO] finished tweaking crates.io crate icx-cert 0.31.0
[INFO] tweaked toml for crates.io crate icx-cert 0.31.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate icx-cert 0.31.0 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1335f658838e8e44a96e551f655ef7449f8a493af28e210efd3be464970b6c9a
[INFO] running `Command { std: "docker" "start" "-a" "1335f658838e8e44a96e551f655ef7449f8a493af28e210efd3be464970b6c9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1335f658838e8e44a96e551f655ef7449f8a493af28e210efd3be464970b6c9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1335f658838e8e44a96e551f655ef7449f8a493af28e210efd3be464970b6c9a", kill_on_drop: false }`
[INFO] [stdout] 1335f658838e8e44a96e551f655ef7449f8a493af28e210efd3be464970b6c9a
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c7204127abfaed369f8a301260e86ea95f33c1df27be0f39f5e188983a09fdd
[INFO] running `Command { std: "docker" "start" "-a" "3c7204127abfaed369f8a301260e86ea95f33c1df27be0f39f5e188983a09fdd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling serde v1.0.185
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling rustls v0.21.6
[INFO] [stderr]     Checking anstyle v1.0.3
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking webpki-roots v0.25.2
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking rustls-pemfile v1.0.3
[INFO] [stderr]     Checking deranged v0.3.8
[INFO] [stderr]     Checking leb128 v0.2.5
[INFO] [stderr]     Checking anstream v0.6.4
[INFO] [stderr]    Compiling syn v2.0.32
[INFO] [stderr]     Checking clap_builder v4.4.6
[INFO] [stderr]     Checking time v0.3.29
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking socket2 v0.5.3
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling serde_derive v1.0.185
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling clap_derive v4.4.2
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking rustls-webpki v0.101.4
[INFO] [stderr]     Checking clap v4.4.6
[INFO] [stderr]     Checking h2 v0.3.21
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking serde_bytes v0.11.12
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking ic-certification v1.2.0
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking hyper-rustls v0.24.1
[INFO] [stderr]     Checking reqwest v0.11.19
[INFO] [stderr]     Checking icx-cert v0.31.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.90s
[INFO] running `Command { std: "docker" "inspect" "3c7204127abfaed369f8a301260e86ea95f33c1df27be0f39f5e188983a09fdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c7204127abfaed369f8a301260e86ea95f33c1df27be0f39f5e188983a09fdd", kill_on_drop: false }`
[INFO] [stdout] 3c7204127abfaed369f8a301260e86ea95f33c1df27be0f39f5e188983a09fdd