[INFO] fetching crate barc 2.2.1...
[INFO] checking barc-2.2.1 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate barc 2.2.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate barc 2.2.1 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate barc 2.2.1
[INFO] finished tweaking crates.io crate barc 2.2.1
[INFO] tweaked toml for crates.io crate barc 2.2.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04871f605701b57cec957dd27ac0bfb2a993d36d65ede9d24cf7f8653a2b6e9c
[INFO] running `Command { std: "docker" "start" "-a" "04871f605701b57cec957dd27ac0bfb2a993d36d65ede9d24cf7f8653a2b6e9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04871f605701b57cec957dd27ac0bfb2a993d36d65ede9d24cf7f8653a2b6e9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04871f605701b57cec957dd27ac0bfb2a993d36d65ede9d24cf7f8653a2b6e9c", kill_on_drop: false }`
[INFO] [stdout] 04871f605701b57cec957dd27ac0bfb2a993d36d65ede9d24cf7f8653a2b6e9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a1eb0ef9087ed3b7e2fd595e81bea620ecb38e51e1fcbbf54ff7b56bb66ea04
[INFO] running `Command { std: "docker" "start" "-a" "2a1eb0ef9087ed3b7e2fd595e81bea620ecb38e51e1fcbbf54ff7b56bb66ea04", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling olio v1.4.0
[INFO] [stderr]    Compiling tao-log v1.0.1
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.3
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling body-image v2.2.2
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]    Compiling httparse v1.3.6
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling barc v2.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling piccolog v1.0.3
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking alloc-stdlib v0.2.1
[INFO] [stderr]     Checking brotli-decompressor v2.3.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking brotli v3.3.2
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1663:52
[INFO] [stdout]      |
[INFO] [stdout] 1663 |                 assert!(em.contains("Incomplete"), em)
[INFO] [stdout]      |                                                    ^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]      = note: this usage of assert!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1663 |                 assert!(em.contains("Incomplete"), "{}", em)
[INFO] [stdout]      |                                                    +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.35s
[INFO] running `Command { std: "docker" "inspect" "2a1eb0ef9087ed3b7e2fd595e81bea620ecb38e51e1fcbbf54ff7b56bb66ea04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a1eb0ef9087ed3b7e2fd595e81bea620ecb38e51e1fcbbf54ff7b56bb66ea04", kill_on_drop: false }`
[INFO] [stdout] 2a1eb0ef9087ed3b7e2fd595e81bea620ecb38e51e1fcbbf54ff7b56bb66ea04