[INFO] fetching crate flex-alloc 0.0.5...
[INFO] checking flex-alloc-0.0.5 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate flex-alloc 0.0.5 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate flex-alloc 0.0.5
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate flex-alloc 0.0.5
[INFO] tweaked toml for crates.io crate flex-alloc 0.0.5 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate flex-alloc 0.0.5 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 80 packages to latest compatible versions
[INFO] [stderr]       Adding allocator-api2 v0.2.21 (available: v0.3.0)
[INFO] [stderr]       Adding criterion v0.5.1 (available: v0.6.0)
[INFO] [stderr]       Adding rstest v0.23.0 (available: v0.25.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 220da9656341445e18a402c0d91133302651db1d48afd23945a7d70b9e58a763
[INFO] running `Command { std: "docker" "start" "-a" "220da9656341445e18a402c0d91133302651db1d48afd23945a7d70b9e58a763", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "220da9656341445e18a402c0d91133302651db1d48afd23945a7d70b9e58a763", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "220da9656341445e18a402c0d91133302651db1d48afd23945a7d70b9e58a763", kill_on_drop: false }`
[INFO] [stdout] 220da9656341445e18a402c0d91133302651db1d48afd23945a7d70b9e58a763
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5d9a9b137495282af0afbec8b37675a654cbb9e163ee1c09c31a466e5bd340c
[INFO] running `Command { std: "docker" "start" "-a" "e5d9a9b137495282af0afbec8b37675a654cbb9e163ee1c09c31a466e5bd340c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking half v2.6.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]    Compiling rstest_macros v0.23.0
[INFO] [stderr]     Checking clap_builder v4.5.40
[INFO] [stderr]    Compiling relative-path v1.9.3
[INFO] [stderr]    Compiling glob v0.3.2
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stderr]     Checking futures-timer v3.0.3
[INFO] [stderr]     Checking oorandom v11.1.5
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking const-default v1.0.0
[INFO] [stderr]     Checking flex-alloc v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking clap v4.5.40
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking rstest v0.23.0
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.23s
[INFO] running `Command { std: "docker" "inspect" "e5d9a9b137495282af0afbec8b37675a654cbb9e163ee1c09c31a466e5bd340c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5d9a9b137495282af0afbec8b37675a654cbb9e163ee1c09c31a466e5bd340c", kill_on_drop: false }`
[INFO] [stdout] e5d9a9b137495282af0afbec8b37675a654cbb9e163ee1c09c31a466e5bd340c