[INFO] fetching crate conjure-codegen 3.6.0...
[INFO] checking conjure-codegen-3.6.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate conjure-codegen 3.6.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate conjure-codegen 3.6.0 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 conjure-codegen 3.6.0
[INFO] finished tweaking crates.io crate conjure-codegen 3.6.0
[INFO] tweaked toml for crates.io crate conjure-codegen 3.6.0 written to /workspace/builds/worker-7-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 99 packages
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.0)
[INFO] [stderr]       Adding educe v0.4.23 (latest: v0.5.11)
[INFO] [stderr]       Adding enum-ordinalize v3.1.15 (latest: v4.3.0)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding heck v0.4.1 (latest: v0.5.0)
[INFO] [stderr]       Adding http v0.2.12 (latest: v1.1.0)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding ordered-float v3.9.2 (latest: v4.2.0)
[INFO] [stderr]       Adding serde-smile v0.1.4 (latest: v0.2.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding synstructure v0.12.6 (latest: v0.13.1)
[INFO] [stderr]       Adding toml v0.7.8 (latest: v0.8.12)
[INFO] [stderr]       Adding toml_edit v0.19.15 (latest: v0.22.9)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.55.0)
[INFO] [stderr]       Adding winnow v0.5.40 (latest: v0.6.5)
[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 conjure-object v3.6.5
[INFO] [stderr]   Downloaded prettyplease v0.2.17
[INFO] [stderr]   Downloaded conjure-error v3.6.5
[INFO] [stderr]   Downloaded conjure-http v3.6.5
[INFO] [stderr]   Downloaded serde-smile v0.1.4
[INFO] [stderr]   Downloaded conjure-serde v3.6.5
[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] 2cfad193529f1b5a088bc4064eac1872cc3ee9a25f981a4710aa2fc5ac3b1629
[INFO] running `Command { std: "docker" "start" "-a" "2cfad193529f1b5a088bc4064eac1872cc3ee9a25f981a4710aa2fc5ac3b1629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cfad193529f1b5a088bc4064eac1872cc3ee9a25f981a4710aa2fc5ac3b1629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cfad193529f1b5a088bc4064eac1872cc3ee9a25f981a4710aa2fc5ac3b1629", kill_on_drop: false }`
[INFO] [stdout] 2cfad193529f1b5a088bc4064eac1872cc3ee9a25f981a4710aa2fc5ac3b1629
[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] bed8fd0c4de7b0339ff2eb4c41e24efee49462313511c6e0831f07b12708703d
[INFO] running `Command { std: "docker" "start" "-a" "bed8fd0c4de7b0339ff2eb4c41e24efee49462313511c6e0831f07b12708703d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling prettyplease v0.2.17
[INFO] [stderr]     Checking winnow v0.5.40
[INFO] [stderr]     Checking heck v0.4.1
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]     Checking syn v2.0.58
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling enum-ordinalize v3.1.15
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling educe v0.4.23
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking serde_bytes v0.11.14
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking serde_spanned v0.6.5
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]     Checking uuid v1.8.0
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking ordered-float v3.9.2
[INFO] [stderr]     Checking toml_edit v0.19.15
[INFO] [stderr]     Checking serde-smile v0.1.4
[INFO] [stderr]     Checking conjure-serde v3.6.5
[INFO] [stderr]     Checking conjure-object v3.6.5
[INFO] [stderr]     Checking toml v0.7.8
[INFO] [stderr]     Checking conjure-codegen v3.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.41s
[INFO] running `Command { std: "docker" "inspect" "bed8fd0c4de7b0339ff2eb4c41e24efee49462313511c6e0831f07b12708703d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bed8fd0c4de7b0339ff2eb4c41e24efee49462313511c6e0831f07b12708703d", kill_on_drop: false }`
[INFO] [stdout] bed8fd0c4de7b0339ff2eb4c41e24efee49462313511c6e0831f07b12708703d
[INFO] checking conjure-codegen-3.6.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate conjure-codegen 3.6.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate conjure-codegen 3.6.0 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 conjure-codegen 3.6.0
[INFO] finished tweaking crates.io crate conjure-codegen 3.6.0
[INFO] tweaked toml for crates.io crate conjure-codegen 3.6.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 99 packages
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.0)
[INFO] [stderr]       Adding educe v0.4.23 (latest: v0.5.11)
[INFO] [stderr]       Adding enum-ordinalize v3.1.15 (latest: v4.3.0)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding heck v0.4.1 (latest: v0.5.0)
[INFO] [stderr]       Adding http v0.2.12 (latest: v1.1.0)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding ordered-float v3.9.2 (latest: v4.2.0)
[INFO] [stderr]       Adding serde-smile v0.1.4 (latest: v0.2.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding synstructure v0.12.6 (latest: v0.13.1)
[INFO] [stderr]       Adding toml v0.7.8 (latest: v0.8.12)
[INFO] [stderr]       Adding toml_edit v0.19.15 (latest: v0.22.9)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.55.0)
[INFO] [stderr]       Adding winnow v0.5.40 (latest: v0.6.5)
[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] 0f3f2c5cda68184028254ba522a40aee4f2c03693ddb7e3fbdd7d61903bea74b
[INFO] running `Command { std: "docker" "start" "-a" "0f3f2c5cda68184028254ba522a40aee4f2c03693ddb7e3fbdd7d61903bea74b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f3f2c5cda68184028254ba522a40aee4f2c03693ddb7e3fbdd7d61903bea74b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f3f2c5cda68184028254ba522a40aee4f2c03693ddb7e3fbdd7d61903bea74b", kill_on_drop: false }`
[INFO] [stdout] 0f3f2c5cda68184028254ba522a40aee4f2c03693ddb7e3fbdd7d61903bea74b
[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] b28a86316c52273cb89fcc56cf2a6ac7ab10d5a1fa5ba956866fc7ddc47a6e7e
[INFO] running `Command { std: "docker" "start" "-a" "b28a86316c52273cb89fcc56cf2a6ac7ab10d5a1fa5ba956866fc7ddc47a6e7e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling prettyplease v0.2.17
[INFO] [stderr]     Checking winnow v0.5.40
[INFO] [stderr]     Checking heck v0.4.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking syn v2.0.58
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling enum-ordinalize v3.1.15
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling educe v0.4.23
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking serde_bytes v0.11.14
[INFO] [stderr]     Checking serde_spanned v0.6.5
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking ordered-float v3.9.2
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]     Checking uuid v1.8.0
[INFO] [stderr]     Checking toml_edit v0.19.15
[INFO] [stderr]     Checking serde-smile v0.1.4
[INFO] [stderr]     Checking conjure-serde v3.6.5
[INFO] [stderr]     Checking conjure-object v3.6.5
[INFO] [stderr]     Checking toml v0.7.8
[INFO] [stderr]     Checking conjure-codegen v3.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.37s
[INFO] running `Command { std: "docker" "inspect" "b28a86316c52273cb89fcc56cf2a6ac7ab10d5a1fa5ba956866fc7ddc47a6e7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b28a86316c52273cb89fcc56cf2a6ac7ab10d5a1fa5ba956866fc7ddc47a6e7e", kill_on_drop: false }`
[INFO] [stdout] b28a86316c52273cb89fcc56cf2a6ac7ab10d5a1fa5ba956866fc7ddc47a6e7e