[INFO] fetching crate herbert 0.2.1...
[INFO] checking herbert-0.2.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate herbert 0.2.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate herbert 0.2.1 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate herbert 0.2.1
[INFO] finished tweaking crates.io crate herbert 0.2.1
[INFO] tweaked toml for crates.io crate herbert 0.2.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate herbert 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-traits v0.2.11
[INFO] [stderr]   Downloaded time v0.1.42
[INFO] [stderr]   Downloaded log v0.4.8
[INFO] [stderr]   Downloaded num-integer v0.1.42
[INFO] [stderr]   Downloaded autocfg v1.0.0
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.2
[INFO] [stderr]   Downloaded redox_syscall v0.1.56
[INFO] [stderr]   Downloaded chrono v0.4.10
[INFO] [stderr]   Downloaded libc v0.2.67
[INFO] [stderr]   Downloaded winapi v0.3.8
[INFO] [stderr]   Downloaded fern v0.5.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cefff2d6bed6065413343ff7e1bcc15cf13fea51897655111c5636c6270dde2
[INFO] running `Command { std: "docker" "start" "-a" "3cefff2d6bed6065413343ff7e1bcc15cf13fea51897655111c5636c6270dde2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cefff2d6bed6065413343ff7e1bcc15cf13fea51897655111c5636c6270dde2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cefff2d6bed6065413343ff7e1bcc15cf13fea51897655111c5636c6270dde2", kill_on_drop: false }`
[INFO] [stdout] 3cefff2d6bed6065413343ff7e1bcc15cf13fea51897655111c5636c6270dde2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21d921cd54524b7a59d6d4c6c2f20eee8a1035fd7c94c0651c20c7290bc6bfd4
[INFO] running `Command { std: "docker" "start" "-a" "21d921cd54524b7a59d6d4c6c2f20eee8a1035fd7c94c0651c20c7290bc6bfd4", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking herbert v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking fern v0.5.9
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> examples/capture.rs:45:42
[INFO] [stdout]    |
[INFO] [stdout] 45 |                         Err(e) => panic!(e),
[INFO] [stdout]    |                                          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` 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]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 45 |                         Err(e) => panic!("{}", e),
[INFO] [stdout]    |                                          +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 45 |                         Err(e) => std::panic::panic_any(e),
[INFO] [stdout]    |                                   ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `Command { std: "docker" "inspect" "21d921cd54524b7a59d6d4c6c2f20eee8a1035fd7c94c0651c20c7290bc6bfd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21d921cd54524b7a59d6d4c6c2f20eee8a1035fd7c94c0651c20c7290bc6bfd4", kill_on_drop: false }`
[INFO] [stdout] 21d921cd54524b7a59d6d4c6c2f20eee8a1035fd7c94c0651c20c7290bc6bfd4