[INFO] fetching crate pk_compiler 0.0.5-dev...
[INFO] checking pk_compiler-0.0.5-dev against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate pk_compiler 0.0.5-dev into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate pk_compiler 0.0.5-dev on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pk_compiler 0.0.5-dev
[INFO] finished tweaking crates.io crate pk_compiler 0.0.5-dev
[INFO] tweaked toml for crates.io crate pk_compiler 0.0.5-dev written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 25 packages
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding logos v0.12.1 (latest: v0.14.0)
[INFO] [stderr]       Adding logos-derive v0.12.1 (latest: v0.14.0)
[INFO] [stderr]       Adding regex-syntax v0.6.29 (latest: v0.8.3)
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded logos-derive v0.12.1
[INFO] [stderr]   Downloaded bytecoding_derive v0.1.0
[INFO] [stderr]   Downloaded pk_lexer v0.0.5-dev
[INFO] [stderr]   Downloaded logos v0.12.1
[INFO] [stderr]   Downloaded pk_parser v0.0.5-dev
[INFO] [stderr]   Downloaded bytecoding v0.1.0
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65b0b3361befa347e0e9953bb9f884303bc5b7d8b0ea80b5c8018886e07cc561
[INFO] running `Command { std: "docker" "start" "-a" "65b0b3361befa347e0e9953bb9f884303bc5b7d8b0ea80b5c8018886e07cc561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65b0b3361befa347e0e9953bb9f884303bc5b7d8b0ea80b5c8018886e07cc561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65b0b3361befa347e0e9953bb9f884303bc5b7d8b0ea80b5c8018886e07cc561", kill_on_drop: false }`
[INFO] [stdout] 65b0b3361befa347e0e9953bb9f884303bc5b7d8b0ea80b5c8018886e07cc561
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2a9eb1fdc8765458c4e92463ff8c2fdbe799dbe1ee781d415adf08b081a88a1
[INFO] running `Command { std: "docker" "start" "-a" "e2a9eb1fdc8765458c4e92463ff8c2fdbe799dbe1ee781d415adf08b081a88a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-iter v0.1.44
[INFO] [stderr]    Compiling logos-derive v0.12.1
[INFO] [stderr]    Compiling bytecoding_derive v0.1.0
[INFO] [stderr]     Checking bytecoding v0.1.0
[INFO] [stderr]     Checking logos v0.12.1
[INFO] [stderr]     Checking pk_lexer v0.0.5-dev
[INFO] [stderr]     Checking pk_parser v0.0.5-dev
[INFO] [stderr]     Checking pk_compiler v0.0.5-dev (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.16s
[INFO] running `Command { std: "docker" "inspect" "e2a9eb1fdc8765458c4e92463ff8c2fdbe799dbe1ee781d415adf08b081a88a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2a9eb1fdc8765458c4e92463ff8c2fdbe799dbe1ee781d415adf08b081a88a1", kill_on_drop: false }`
[INFO] [stdout] e2a9eb1fdc8765458c4e92463ff8c2fdbe799dbe1ee781d415adf08b081a88a1