[INFO] fetching crate barc 2.2.2...
[INFO] checking barc-2.2.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate barc 2.2.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate barc 2.2.2 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 barc 2.2.2
[INFO] finished tweaking crates.io crate barc 2.2.2
[INFO] tweaked toml for crates.io crate barc 2.2.2 written to /workspace/builds/worker-6-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 37 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding brotli v3.3.4 (latest: v4.0.0)
[INFO] [stderr]       Adding brotli-decompressor v2.3.5 (latest: v3.0.0)
[INFO] [stderr]       Adding bytes v1.1.0 (latest: v1.6.0)
[INFO] [stderr]       Adding http v0.2.12 (latest: v1.1.0)
[INFO] [stderr]       Adding httparse v1.4.1 (latest: v1.8.0)
[INFO] [stderr]       Adding log v0.4.14 (latest: v0.4.21)
[INFO] [stderr]       Adding redox_syscall v0.2.16 (latest: v0.5.1)
[INFO] [stderr]       Adding remove_dir_all v0.5.2 (latest: v0.8.2)
[INFO] [stderr]       Adding tempfile v3.2.0 (latest: v3.10.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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 httparse v1.4.1
[INFO] [stderr]   Downloaded piccolog v1.0.3
[INFO] [stderr]   Downloaded memmap v0.7.0
[INFO] [stderr]   Downloaded remove_dir_all v0.5.2
[INFO] [stderr]   Downloaded body-image v2.2.3
[INFO] [stderr]   Downloaded tempfile v3.2.0
[INFO] [stderr]   Downloaded olio v1.4.0
[INFO] [stderr]   Downloaded tao-log v1.0.1
[INFO] [stderr]   Downloaded brotli-decompressor v2.3.5
[INFO] [stderr]   Downloaded brotli-decompressor v3.0.0
[INFO] [stderr]   Downloaded brotli v3.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 0ceb88b9006e79a546b0a92b30e7962a908b808646820657a627a5ebe470c552
[INFO] running `Command { std: "docker" "start" "-a" "0ceb88b9006e79a546b0a92b30e7962a908b808646820657a627a5ebe470c552", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ceb88b9006e79a546b0a92b30e7962a908b808646820657a627a5ebe470c552", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ceb88b9006e79a546b0a92b30e7962a908b808646820657a627a5ebe470c552", kill_on_drop: false }`
[INFO] [stdout] 0ceb88b9006e79a546b0a92b30e7962a908b808646820657a627a5ebe470c552
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ca22056ae0da5f85d0f20c6dfd60a92d4c64d0ad63ce0c13569073716e187843
[INFO] running `Command { std: "docker" "start" "-a" "ca22056ae0da5f85d0f20c6dfd60a92d4c64d0ad63ce0c13569073716e187843", kill_on_drop: false }`
[INFO] [stderr]    Compiling olio v1.4.0
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.4
[INFO] [stderr]    Compiling tao-log v1.0.1
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling body-image v2.2.3
[INFO] [stderr]    Compiling piccolog v1.0.3
[INFO] [stderr]    Compiling barc v2.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking alloc-stdlib v0.2.2
[INFO] [stderr]     Checking brotli-decompressor v2.3.5
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]     Checking brotli v3.3.4
[INFO] [stdout] warning: the item `Path` is imported redundantly
[INFO] [stdout]     --> src/lib.rs:1176:21
[INFO] [stdout]      |
[INFO] [stdout] 1176 |     use std::path::{Path, PathBuf};
[INFO] [stdout]      |                     ^^^^
[INFO] [stdout] 1177 |     use http::header::{AGE, REFERER, VIA};
[INFO] [stdout] 1178 |     use super::*;
[INFO] [stdout]      |         -------- the item `Path` is already imported here
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` 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 3.16s
[INFO] running `Command { std: "docker" "inspect" "ca22056ae0da5f85d0f20c6dfd60a92d4c64d0ad63ce0c13569073716e187843", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca22056ae0da5f85d0f20c6dfd60a92d4c64d0ad63ce0c13569073716e187843", kill_on_drop: false }`
[INFO] [stdout] ca22056ae0da5f85d0f20c6dfd60a92d4c64d0ad63ce0c13569073716e187843
[INFO] checking barc-2.2.2 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate barc 2.2.2 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate barc 2.2.2 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 barc 2.2.2
[INFO] finished tweaking crates.io crate barc 2.2.2
[INFO] tweaked toml for crates.io crate barc 2.2.2 written to /workspace/builds/worker-6-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 37 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding brotli v3.3.4 (latest: v4.0.0)
[INFO] [stderr]       Adding brotli-decompressor v2.3.5 (latest: v3.0.0)
[INFO] [stderr]       Adding bytes v1.1.0 (latest: v1.6.0)
[INFO] [stderr]       Adding http v0.2.12 (latest: v1.1.0)
[INFO] [stderr]       Adding httparse v1.4.1 (latest: v1.8.0)
[INFO] [stderr]       Adding log v0.4.14 (latest: v0.4.21)
[INFO] [stderr]       Adding redox_syscall v0.2.16 (latest: v0.5.1)
[INFO] [stderr]       Adding remove_dir_all v0.5.2 (latest: v0.8.2)
[INFO] [stderr]       Adding tempfile v3.2.0 (latest: v3.10.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d951a6a4bf5f7caf5b3d4fa4edfee62358112ce95136fd54d938e76b50fedd33
[INFO] running `Command { std: "docker" "start" "-a" "d951a6a4bf5f7caf5b3d4fa4edfee62358112ce95136fd54d938e76b50fedd33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d951a6a4bf5f7caf5b3d4fa4edfee62358112ce95136fd54d938e76b50fedd33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d951a6a4bf5f7caf5b3d4fa4edfee62358112ce95136fd54d938e76b50fedd33", kill_on_drop: false }`
[INFO] [stdout] d951a6a4bf5f7caf5b3d4fa4edfee62358112ce95136fd54d938e76b50fedd33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 0fa96de81502696d85f14c38160186c5445a8ebf337d94d5cc0082990c86f145
[INFO] running `Command { std: "docker" "start" "-a" "0fa96de81502696d85f14c38160186c5445a8ebf337d94d5cc0082990c86f145", kill_on_drop: false }`
[INFO] [stderr]    Compiling olio v1.4.0
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.4
[INFO] [stderr]    Compiling tao-log v1.0.1
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling body-image v2.2.3
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling piccolog v1.0.3
[INFO] [stderr]    Compiling barc v2.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking alloc-stdlib v0.2.2
[INFO] [stderr]     Checking brotli-decompressor v2.3.5
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]     Checking brotli v3.3.4
[INFO] [stdout] warning: the item `Path` is imported redundantly
[INFO] [stdout]     --> src/lib.rs:1176:21
[INFO] [stdout]      |
[INFO] [stdout] 1176 |     use std::path::{Path, PathBuf};
[INFO] [stdout]      |                     ^^^^
[INFO] [stdout] 1177 |     use http::header::{AGE, REFERER, VIA};
[INFO] [stdout] 1178 |     use super::*;
[INFO] [stdout]      |         -------- the item `Path` is already imported here
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` 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 3.30s
[INFO] running `Command { std: "docker" "inspect" "0fa96de81502696d85f14c38160186c5445a8ebf337d94d5cc0082990c86f145", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fa96de81502696d85f14c38160186c5445a8ebf337d94d5cc0082990c86f145", kill_on_drop: false }`
[INFO] [stdout] 0fa96de81502696d85f14c38160186c5445a8ebf337d94d5cc0082990c86f145