[INFO] fetching crate gen-vec 0.3.0...
[INFO] checking gen-vec-0.3.0 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate gen-vec 0.3.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate gen-vec 0.3.0 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gen-vec 0.3.0
[INFO] finished tweaking crates.io crate gen-vec 0.3.0
[INFO] tweaked toml for crates.io crate gen-vec 0.3.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b320ef53a1850640cb497e3c9355d39e4dc643f64c6c57a4f76d1629357e513
[INFO] running `Command { std: "docker" "start" "-a" "4b320ef53a1850640cb497e3c9355d39e4dc643f64c6c57a4f76d1629357e513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b320ef53a1850640cb497e3c9355d39e4dc643f64c6c57a4f76d1629357e513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b320ef53a1850640cb497e3c9355d39e4dc643f64c6c57a4f76d1629357e513", kill_on_drop: false }`
[INFO] [stdout] 4b320ef53a1850640cb497e3c9355d39e4dc643f64c6c57a4f76d1629357e513
[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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33d79c48b3d84f74092a786f9f747b60e01f89eb69c14316156d6e495e0b0f1e
[INFO] running `Command { std: "docker" "start" "-a" "33d79c48b3d84f74092a786f9f747b60e01f89eb69c14316156d6e495e0b0f1e", kill_on_drop: false }`
[INFO] [stderr]     Checking gen-vec v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/exposed/gen_vec.rs:163:25
[INFO] [stdout]     |
[INFO] [stdout] 163 |             _ => panic!(format!("Index is out of bounds despite internal vec being resized: {:?}", index))
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[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: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 163 -             _ => panic!(format!("Index is out of bounds despite internal vec being resized: {:?}", index))
[INFO] [stdout] 163 +             _ => panic!("Index is out of bounds despite internal vec being resized: {:?}", index)
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/exposed/gen_vec.rs:163:25
[INFO] [stdout]     |
[INFO] [stdout] 163 |             _ => panic!(format!("Index is out of bounds despite internal vec being resized: {:?}", index))
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[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: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 163 -             _ => panic!(format!("Index is out of bounds despite internal vec being resized: {:?}", index))
[INFO] [stdout] 163 +             _ => panic!("Index is out of bounds despite internal vec being resized: {:?}", index)
[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 0.57s
[INFO] running `Command { std: "docker" "inspect" "33d79c48b3d84f74092a786f9f747b60e01f89eb69c14316156d6e495e0b0f1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33d79c48b3d84f74092a786f9f747b60e01f89eb69c14316156d6e495e0b0f1e", kill_on_drop: false }`
[INFO] [stdout] 33d79c48b3d84f74092a786f9f747b60e01f89eb69c14316156d6e495e0b0f1e