[INFO] fetching crate breaktarget 0.1.0...
[INFO] checking breaktarget-0.1.0 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] extracting crate breaktarget 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate breaktarget 0.1.0 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate breaktarget 0.1.0
[INFO] finished tweaking crates.io crate breaktarget 0.1.0
[INFO] tweaked toml for crates.io crate breaktarget 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24ae55556c405a4b79596effd75ea9a8977dd68e68c3129cf9b42e9808f1794a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "24ae55556c405a4b79596effd75ea9a8977dd68e68c3129cf9b42e9808f1794a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24ae55556c405a4b79596effd75ea9a8977dd68e68c3129cf9b42e9808f1794a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24ae55556c405a4b79596effd75ea9a8977dd68e68c3129cf9b42e9808f1794a", kill_on_drop: false }`
[INFO] [stdout] 24ae55556c405a4b79596effd75ea9a8977dd68e68c3129cf9b42e9808f1794a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d912c46d1e606b0a777a7e4ef05b7cb6d2b94f0347fb1396c89e77c5641ed170
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d912c46d1e606b0a777a7e4ef05b7cb6d2b94f0347fb1396c89e77c5641ed170", kill_on_drop: false }`
[INFO] [stderr]     Checking breaktarget v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:149:79
[INFO] [stdout]     |
[INFO] [stdout] 149 |         if let Err(e) = panic::catch_unwind(|| BreakTarget::deploy(|_| panic!(1u32))) {
[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] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 149 |         if let Err(e) = panic::catch_unwind(|| BreakTarget::deploy(|_| panic!("{}", 1u32))) {
[INFO] [stdout]     |                                                                               ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 149 |         if let Err(e) = panic::catch_unwind(|| BreakTarget::deploy(|_| std::panic::panic_any(1u32))) {
[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 0.43s
[INFO] running `Command { std: "docker" "inspect" "d912c46d1e606b0a777a7e4ef05b7cb6d2b94f0347fb1396c89e77c5641ed170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d912c46d1e606b0a777a7e4ef05b7cb6d2b94f0347fb1396c89e77c5641ed170", kill_on_drop: false }`
[INFO] [stdout] d912c46d1e606b0a777a7e4ef05b7cb6d2b94f0347fb1396c89e77c5641ed170