[INFO] cloning repository https://github.com/bearcove/merde_json
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bearcove/merde_json" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbearcove%2Fmerde_json", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbearcove%2Fmerde_json'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fefd01806584cf32595365f0e4d745e13425a4e7
[INFO] checking bearcove/merde_json against try#54cf65b8d066c082e536455049b95943cf30378f for pr-151920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbearcove%2Fmerde_json" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/bearcove/merde_json
[INFO] finished tweaking git repo https://github.com/bearcove/merde_json
[INFO] tweaked toml for git repo https://github.com/bearcove/merde_json written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bearcove/merde_json on toolchain 54cf65b8d066c082e536455049b95943cf30378f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54cf65b8d066c082e536455049b95943cf30378f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bearcove/merde_json 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" "+54cf65b8d066c082e536455049b95943cf30378f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+54cf65b8d066c082e536455049b95943cf30378f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b39722493d06ee6cd87493ae7ce19702f0cade88d64ed6ad78945d74ae040de
[INFO] running `Command { std: "docker" "start" "-a" "7b39722493d06ee6cd87493ae7ce19702f0cade88d64ed6ad78945d74ae040de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b39722493d06ee6cd87493ae7ce19702f0cade88d64ed6ad78945d74ae040de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b39722493d06ee6cd87493ae7ce19702f0cade88d64ed6ad78945d74ae040de", kill_on_drop: false }`
[INFO] [stdout] 7b39722493d06ee6cd87493ae7ce19702f0cade88d64ed6ad78945d74ae040de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+54cf65b8d066c082e536455049b95943cf30378f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3bee5fe692875ad9c82ea7b0f214ea3521cc971e3423c58cdd56578a044ac58
[INFO] running `Command { std: "docker" "start" "-a" "c3bee5fe692875ad9c82ea7b0f214ea3521cc971e3423c58cdd56578a044ac58", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling rustversion v1.0.20
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]     Checking allocator-api2 v0.2.18
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking indexmap v2.9.0
[INFO] [stderr]     Checking lexical-util v0.8.5
[INFO] [stderr]     Checking winnow v0.7.6
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking castaway v0.2.3
[INFO] [stderr]     Checking compact_str v0.8.1
[INFO] [stderr]    Compiling target-triple v0.1.3
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking lexical-parse-integer v0.8.6
[INFO] [stderr]     Checking hashlink v0.8.4
[INFO] [stderr]    Compiling time-core v0.1.4
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]     Checking arraydeque v0.5.1
[INFO] [stderr]     Checking ordered-float v5.0.0
[INFO] [stderr]     Checking rmp v0.8.14
[INFO] [stderr]    Compiling time-macros v0.2.22
[INFO] [stderr]     Checking deranged v0.4.0
[INFO] [stderr]     Checking yaml-rust2 v0.8.1
[INFO] [stderr]     Checking lexical-parse-float v0.8.5
[INFO] [stderr]     Checking console v0.15.11
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking similar v2.6.0
[INFO] [stderr]     Checking time v0.3.41
[INFO] [stderr]     Checking compact_bytes v0.1.3
[INFO] [stderr]     Checking toml_datetime v0.6.8
[INFO] [stderr]     Checking serde_spanned v0.6.8
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stdout] error: not automatically applying `DerefMut` through union field to target that might have `Drop` glue
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/compact_bytes-0.1.3/src/lib.rs:342:13
[INFO] [stdout]     |
[INFO] [stdout] 342 |             self.heap.set_len(new_len);
[INFO] [stdout]     |             ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: writing to this reference calls the destructor for the old value
[INFO] [stdout]     = help: add an explicit `*` if that is desired, or call `ptr::write` to not run the destructor
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `compact_bytes` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c3bee5fe692875ad9c82ea7b0f214ea3521cc971e3423c58cdd56578a044ac58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3bee5fe692875ad9c82ea7b0f214ea3521cc971e3423c58cdd56578a044ac58", kill_on_drop: false }`
[INFO] [stdout] c3bee5fe692875ad9c82ea7b0f214ea3521cc971e3423c58cdd56578a044ac58