[INFO] fetching crate stdcode 0.1.14...
[INFO] checking stdcode-0.1.14 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate stdcode 0.1.14 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate stdcode 0.1.14 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 stdcode 0.1.14
[INFO] finished tweaking crates.io crate stdcode 0.1.14
[INFO] tweaked toml for crates.io crate stdcode 0.1.14 written to /workspace/builds/worker-5-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 22 packages
[INFO] [stderr]       Adding darling v0.13.4 (latest: v0.20.8)
[INFO] [stderr]       Adding darling_core v0.13.4 (latest: v0.20.8)
[INFO] [stderr]       Adding darling_macro v0.13.4 (latest: v0.20.8)
[INFO] [stderr]       Adding serde_with v1.14.0 (latest: v3.7.0)
[INFO] [stderr]       Adding serde_with_macros v1.5.2 (latest: v3.7.0)
[INFO] [stderr]       Adding strsim v0.10.0 (latest: v0.11.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 87709dc94dd925ef82faeabea7d3262ba583526e50a25526accedcf6e7532a6c
[INFO] running `Command { std: "docker" "start" "-a" "87709dc94dd925ef82faeabea7d3262ba583526e50a25526accedcf6e7532a6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87709dc94dd925ef82faeabea7d3262ba583526e50a25526accedcf6e7532a6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87709dc94dd925ef82faeabea7d3262ba583526e50a25526accedcf6e7532a6c", kill_on_drop: false }`
[INFO] [stdout] 87709dc94dd925ef82faeabea7d3262ba583526e50a25526accedcf6e7532a6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1c24eeda740238f9dac4230031a7fe90643a5e37ff213ad0790f09ccae63ee3b
[INFO] running `Command { std: "docker" "start" "-a" "1c24eeda740238f9dac4230031a7fe90643a5e37ff213ad0790f09ccae63ee3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling serde_with_macros v1.5.2
[INFO] [stderr]     Checking serde_with v1.14.0
[INFO] [stderr]     Checking stdcode v0.1.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.04s
[INFO] running `Command { std: "docker" "inspect" "1c24eeda740238f9dac4230031a7fe90643a5e37ff213ad0790f09ccae63ee3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c24eeda740238f9dac4230031a7fe90643a5e37ff213ad0790f09ccae63ee3b", kill_on_drop: false }`
[INFO] [stdout] 1c24eeda740238f9dac4230031a7fe90643a5e37ff213ad0790f09ccae63ee3b
[INFO] checking stdcode-0.1.14 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate stdcode 0.1.14 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate stdcode 0.1.14 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 stdcode 0.1.14
[INFO] finished tweaking crates.io crate stdcode 0.1.14
[INFO] tweaked toml for crates.io crate stdcode 0.1.14 written to /workspace/builds/worker-5-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 22 packages
[INFO] [stderr]       Adding darling v0.13.4 (latest: v0.20.8)
[INFO] [stderr]       Adding darling_core v0.13.4 (latest: v0.20.8)
[INFO] [stderr]       Adding darling_macro v0.13.4 (latest: v0.20.8)
[INFO] [stderr]       Adding serde_with v1.14.0 (latest: v3.7.0)
[INFO] [stderr]       Adding serde_with_macros v1.5.2 (latest: v3.7.0)
[INFO] [stderr]       Adding strsim v0.10.0 (latest: v0.11.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 26833258d709e7584dec5809538789a4593b0ebc18f39ce3d5c8a4cfd3631ac0
[INFO] running `Command { std: "docker" "start" "-a" "26833258d709e7584dec5809538789a4593b0ebc18f39ce3d5c8a4cfd3631ac0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26833258d709e7584dec5809538789a4593b0ebc18f39ce3d5c8a4cfd3631ac0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26833258d709e7584dec5809538789a4593b0ebc18f39ce3d5c8a4cfd3631ac0", kill_on_drop: false }`
[INFO] [stdout] 26833258d709e7584dec5809538789a4593b0ebc18f39ce3d5c8a4cfd3631ac0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] e88ba538b0c3a168982eaa0a594301f14c9fadc5b636d70aa3e70a07aee3c1e1
[INFO] running `Command { std: "docker" "start" "-a" "e88ba538b0c3a168982eaa0a594301f14c9fadc5b636d70aa3e70a07aee3c1e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling serde_with_macros v1.5.2
[INFO] [stderr]     Checking serde_with v1.14.0
[INFO] [stderr]     Checking stdcode v0.1.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.41s
[INFO] running `Command { std: "docker" "inspect" "e88ba538b0c3a168982eaa0a594301f14c9fadc5b636d70aa3e70a07aee3c1e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e88ba538b0c3a168982eaa0a594301f14c9fadc5b636d70aa3e70a07aee3c1e1", kill_on_drop: false }`
[INFO] [stdout] e88ba538b0c3a168982eaa0a594301f14c9fadc5b636d70aa3e70a07aee3c1e1