[INFO] fetching crate gvec 0.5.0...
[INFO] checking gvec-0.5.0 against try#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] extracting crate gvec 0.5.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate gvec 0.5.0 on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gvec 0.5.0
[INFO] finished tweaking crates.io crate gvec 0.5.0
[INFO] tweaked toml for crates.io crate gvec 0.5.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 427cf206d20f4e35f3c0b3c6f5d511b8bc90fcaf3c14a52684cb7115533efa6f
[INFO] running `Command { std: "docker" "start" "-a" "427cf206d20f4e35f3c0b3c6f5d511b8bc90fcaf3c14a52684cb7115533efa6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "427cf206d20f4e35f3c0b3c6f5d511b8bc90fcaf3c14a52684cb7115533efa6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "427cf206d20f4e35f3c0b3c6f5d511b8bc90fcaf3c14a52684cb7115533efa6f", kill_on_drop: false }`
[INFO] [stdout] 427cf206d20f4e35f3c0b3c6f5d511b8bc90fcaf3c14a52684cb7115533efa6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f8ba506d5499c110cedd65cf7ec89484745f7784b9bf5bd5d0de2e610c8871a2
[INFO] running `Command { std: "docker" "start" "-a" "f8ba506d5499c110cedd65cf7ec89484745f7784b9bf5bd5d0de2e610c8871a2", kill_on_drop: false }`
[INFO] [stderr]     Checking gvec v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/dense.rs:149:20
[INFO] [stdout]     |
[INFO] [stdout] 149 |               panic!(format!(
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 150 | |                 "Generation does not match!
[INFO] [stdout] 151 | |                 Index generation: \u{1b}[38:5:1m{}
[INFO] [stdout] 152 | |                 Current generation: \u{1b}[38:5:4m{}\n",
[INFO] [stdout] 153 | |                 index.generation(),
[INFO] [stdout] 154 | |                 self.generations[&index.index()]
[INFO] [stdout] 155 | |             ))
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[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] 149 |             panic!(
[INFO] [stdout] 150 |                 "Generation does not match!
[INFO] [stdout] 151 |                 Index generation: \u{1b}[38:5:1m{}
[INFO] [stdout] 152 |                 Current generation: \u{1b}[38:5:4m{}\n",
[INFO] [stdout] 153 |                 index.generation(),
[INFO] [stdout] 154 |                 self.generations[&index.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/dense.rs:149:20
[INFO] [stdout]     |
[INFO] [stdout] 149 |               panic!(format!(
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 150 | |                 "Generation does not match!
[INFO] [stdout] 151 | |                 Index generation: \u{1b}[38:5:1m{}
[INFO] [stdout] 152 | |                 Current generation: \u{1b}[38:5:4m{}\n",
[INFO] [stdout] 153 | |                 index.generation(),
[INFO] [stdout] 154 | |                 self.generations[&index.index()]
[INFO] [stdout] 155 | |             ))
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[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] 149 |             panic!(
[INFO] [stdout] 150 |                 "Generation does not match!
[INFO] [stdout] 151 |                 Index generation: \u{1b}[38:5:1m{}
[INFO] [stdout] 152 |                 Current generation: \u{1b}[38:5:4m{}\n",
[INFO] [stdout] 153 |                 index.generation(),
[INFO] [stdout] 154 |                 self.generations[&index.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 0.91s
[INFO] running `Command { std: "docker" "inspect" "f8ba506d5499c110cedd65cf7ec89484745f7784b9bf5bd5d0de2e610c8871a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8ba506d5499c110cedd65cf7ec89484745f7784b9bf5bd5d0de2e610c8871a2", kill_on_drop: false }`
[INFO] [stdout] f8ba506d5499c110cedd65cf7ec89484745f7784b9bf5bd5d0de2e610c8871a2