[INFO] cloning repository https://github.com/bokuweb/rust-wasm-png-decoder-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bokuweb/rust-wasm-png-decoder-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbokuweb%2Frust-wasm-png-decoder-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbokuweb%2Frust-wasm-png-decoder-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 11d2f696115f86483b57775e13e9ee67b81b4813
[INFO] checking bokuweb/rust-wasm-png-decoder-example against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbokuweb%2Frust-wasm-png-decoder-example" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bokuweb/rust-wasm-png-decoder-example 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 git repo https://github.com/bokuweb/rust-wasm-png-decoder-example
[INFO] finished tweaking git repo https://github.com/bokuweb/rust-wasm-png-decoder-example
[INFO] tweaked toml for git repo https://github.com/bokuweb/rust-wasm-png-decoder-example written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/bokuweb/rust-wasm-png-decoder-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-iter v0.1.34
[INFO] [stderr]   Downloaded serde_derive_internals v0.17.0
[INFO] [stderr]   Downloaded inflate v0.3.3
[INFO] [stderr]   Downloaded deflate v0.7.17
[INFO] [stderr]   Downloaded adler32 v1.0.2
[INFO] [stderr]   Downloaded num-traits v0.1.40
[INFO] [stderr]   Downloaded itoa v0.3.4
[INFO] [stderr]   Downloaded serde_json v1.0.6
[INFO] [stderr]   Downloaded serde v1.0.21
[INFO] [stderr]   Downloaded num-integer v0.1.35
[INFO] [stderr]   Downloaded serde_derive v1.0.21
[INFO] [stderr]   Downloaded byteorder v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ce12d9f6857a6c32c47547d7b05c1e47507e32cba0b6231509c651d03cef5a8
[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" "0ce12d9f6857a6c32c47547d7b05c1e47507e32cba0b6231509c651d03cef5a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ce12d9f6857a6c32c47547d7b05c1e47507e32cba0b6231509c651d03cef5a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ce12d9f6857a6c32c47547d7b05c1e47507e32cba0b6231509c651d03cef5a8", kill_on_drop: false }`
[INFO] [stdout] 0ce12d9f6857a6c32c47547d7b05c1e47507e32cba0b6231509c651d03cef5a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "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] 9d248951000597df7c1339e6890fc9ba5ff214a245cade9c09cdaa8604ff33d4
[INFO] running `Command { std: "docker" "start" "-a" "9d248951000597df7c1339e6890fc9ba5ff214a245cade9c09cdaa8604ff33d4", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking adler32 v1.0.2
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking serde v1.0.21
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking inflate v0.3.3
[INFO] [stderr]     Checking deflate v0.7.17
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]    Compiling serde_derive_internals v0.17.0
[INFO] [stderr]    Compiling serde_derive v1.0.21
[INFO] [stderr]     Checking serde_json v1.0.6
[INFO] [stderr]     Checking rust-wasm-png-decoder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:44:28
[INFO] [stdout]    |
[INFO] [stdout] 44 |         Err(why) => panic!(why.to_string()),
[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] 44 |         Err(why) => panic!("{}", why.to_string()),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 44 |         Err(why) => std::panic::panic_any(why.to_string()),
[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/main.rs:44:28
[INFO] [stdout]    |
[INFO] [stdout] 44 |         Err(why) => panic!(why.to_string()),
[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] 44 |         Err(why) => panic!("{}", why.to_string()),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 44 |         Err(why) => std::panic::panic_any(why.to_string()),
[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 17.46s
[INFO] running `Command { std: "docker" "inspect" "9d248951000597df7c1339e6890fc9ba5ff214a245cade9c09cdaa8604ff33d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d248951000597df7c1339e6890fc9ba5ff214a245cade9c09cdaa8604ff33d4", kill_on_drop: false }`
[INFO] [stdout] 9d248951000597df7c1339e6890fc9ba5ff214a245cade9c09cdaa8604ff33d4