[INFO] fetching crate postcard 1.1.3...
[INFO] checking postcard-1.1.3 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate postcard 1.1.3 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate postcard 1.1.3
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate postcard 1.1.3
[INFO] tweaked toml for crates.io crate postcard 1.1.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate postcard 1.1.3 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate postcard 1.1.3 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 722deadcb85eb093ee250a815b4886e3911c0ed756abfeed1e1ca249dca9797e
[INFO] running `Command { std: "docker" "start" "-a" "722deadcb85eb093ee250a815b4886e3911c0ed756abfeed1e1ca249dca9797e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "722deadcb85eb093ee250a815b4886e3911c0ed756abfeed1e1ca249dca9797e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "722deadcb85eb093ee250a815b4886e3911c0ed756abfeed1e1ca249dca9797e", kill_on_drop: false }`
[INFO] [stdout] 722deadcb85eb093ee250a815b4886e3911c0ed756abfeed1e1ca249dca9797e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69ddf3f62daa137afe7d3017a6f4fbd52d3c5f1830d93f4001f32af0d9f26eab
[INFO] running `Command { std: "docker" "start" "-a" "69ddf3f62daa137afe7d3017a6f4fbd52d3c5f1830d93f4001f32af0d9f26eab", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]    Compiling syn v2.0.103
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]     Checking cobs v0.3.0
[INFO] [stderr]     Checking postcard v1.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `MaxSize` is never used
[INFO] [stdout]   --> src/max_size.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub trait MaxSize {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `varint_size` is never used
[INFO] [stdout]    --> src/max_size.rs:294:10
[INFO] [stdout]     |
[INFO] [stdout] 294 | const fn varint_size(max_n: usize) -> usize {
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max` is never used
[INFO] [stdout]    --> src/max_size.rs:314:10
[INFO] [stdout]     |
[INFO] [stdout] 314 | const fn max(lhs: usize, rhs: usize) -> usize {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RefStruct` is never constructed
[INFO] [stdout]   --> tests/loopback.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct RefStruct<'a> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.41s
[INFO] running `Command { std: "docker" "inspect" "69ddf3f62daa137afe7d3017a6f4fbd52d3c5f1830d93f4001f32af0d9f26eab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69ddf3f62daa137afe7d3017a6f4fbd52d3c5f1830d93f4001f32af0d9f26eab", kill_on_drop: false }`
[INFO] [stdout] 69ddf3f62daa137afe7d3017a6f4fbd52d3c5f1830d93f4001f32af0d9f26eab