[INFO] fetching crate exhibit 0.2.0...
[INFO] crate exhibit 0.2.0 is already in cache
[INFO] crate exhibit 0.2.0 is already in cache
[INFO] crate exhibit 0.2.0 is already in cache
[INFO] crate exhibit 0.2.0 is already in cache
[INFO] crate exhibit 0.2.0 is already in cache
[INFO] crate exhibit 0.2.0 is already in cache
[INFO] crate exhibit 0.2.0 is already in cache
[INFO] crate exhibit 0.2.0 is already in cache
[INFO] crate exhibit 0.2.0 is already in cache
[INFO] crate exhibit 0.2.0 is already in cache
[INFO] crate exhibit 0.2.0 is already in cache
[INFO] crate exhibit 0.2.0 is already in cache
[INFO] crate exhibit 0.2.0 is already in cache
[INFO] crate exhibit 0.2.0 is already in cache
[INFO] checking exhibit-0.2.0 against master#af7ab3447079fddc51c6c7749b160d24769f7c16 for pr-99413
[INFO] extracting crate exhibit 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate exhibit 0.2.0 on toolchain af7ab3447079fddc51c6c7749b160d24769f7c16
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af7ab3447079fddc51c6c7749b160d24769f7c16" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate exhibit 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate exhibit 0.2.0
[INFO] tweaked toml for crates.io crate exhibit 0.2.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate exhibit 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af7ab3447079fddc51c6c7749b160d24769f7c16" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+af7ab3447079fddc51c6c7749b160d24769f7c16" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f01f3aecee340acd92fba4dc12f8b39cd969428a3353d50af1e2be2d99c1586d
[INFO] running `Command { std: "docker" "start" "-a" "f01f3aecee340acd92fba4dc12f8b39cd969428a3353d50af1e2be2d99c1586d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f01f3aecee340acd92fba4dc12f8b39cd969428a3353d50af1e2be2d99c1586d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f01f3aecee340acd92fba4dc12f8b39cd969428a3353d50af1e2be2d99c1586d", kill_on_drop: false }`
[INFO] [stdout] f01f3aecee340acd92fba4dc12f8b39cd969428a3353d50af1e2be2d99c1586d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+af7ab3447079fddc51c6c7749b160d24769f7c16" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7df018ef60921da54d4345a46ab1ec1389431349beb459b2e2d76122d11c2af2
[INFO] running `Command { std: "docker" "start" "-a" "7df018ef60921da54d4345a46ab1ec1389431349beb459b2e2d76122d11c2af2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde_derive v1.0.140
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]    Compiling serde v1.0.140
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]     Checking similar v2.1.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.24.0
[INFO] [stderr]     Checking vte v0.10.1
[INFO] [stderr]     Checking strip-ansi-escapes v0.1.1
[INFO] [stderr]     Checking exhibit v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking insta v1.16.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.86s
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "7df018ef60921da54d4345a46ab1ec1389431349beb459b2e2d76122d11c2af2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7df018ef60921da54d4345a46ab1ec1389431349beb459b2e2d76122d11c2af2", kill_on_drop: false }`
[INFO] [stdout] 7df018ef60921da54d4345a46ab1ec1389431349beb459b2e2d76122d11c2af2