[INFO] fetching crate merkle-tree-stream 0.12.1...
[INFO] checking merkle-tree-stream-0.12.1 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate merkle-tree-stream 0.12.1 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate merkle-tree-stream 0.12.1 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate merkle-tree-stream 0.12.1
[INFO] finished tweaking crates.io crate merkle-tree-stream 0.12.1
[INFO] tweaked toml for crates.io crate merkle-tree-stream 0.12.1 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate crates.io crate merkle-tree-stream 0.12.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.64
[INFO] [stderr]   Downloaded crypto-hash v0.3.4
[INFO] [stderr]   Downloaded fastrand v1.3.3
[INFO] [stderr]   Downloaded commoncrypto-sys v0.2.0
[INFO] [stderr]   Downloaded quickcheck v0.9.2
[INFO] [stderr]   Downloaded blocking v0.4.6
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.64
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.14
[INFO] [stderr]   Downloaded js-sys v0.3.41
[INFO] [stderr]   Downloaded parking v1.0.4
[INFO] [stderr]   Downloaded concurrent-queue v1.1.1
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.64
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.64
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.64
[INFO] [stderr]   Downloaded commoncrypto v0.2.0
[INFO] [stderr]   Downloaded flat-tree v5.0.0
[INFO] [stderr]   Downloaded web-sys v0.3.41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d47447123daecdf2fd647d3ad91dce1befeb882af5debbc78c0e625ed1bd9d13
[INFO] running `Command { std: "docker" "start" "-a" "d47447123daecdf2fd647d3ad91dce1befeb882af5debbc78c0e625ed1bd9d13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d47447123daecdf2fd647d3ad91dce1befeb882af5debbc78c0e625ed1bd9d13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d47447123daecdf2fd647d3ad91dce1befeb882af5debbc78c0e625ed1bd9d13", kill_on_drop: false }`
[INFO] [stdout] d47447123daecdf2fd647d3ad91dce1befeb882af5debbc78c0e625ed1bd9d13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bec659ff9d59814c8422bf31a5f579ca5a6ef51f3992c1aa4a8e487e779c4823
[INFO] running `Command { std: "docker" "start" "-a" "bec659ff9d59814c8422bf31a5f579ca5a6ef51f3992c1aa4a8e487e779c4823", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking waker-fn v1.0.0
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking parking v1.0.4
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking async-task v3.0.0
[INFO] [stderr]     Checking fastrand v1.3.3
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking flat-tree v5.0.0
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking concurrent-queue v1.1.1
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking merkle-tree-stream v0.12.1 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]     Checking crypto-hash v0.3.4
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking blocking v0.4.6
[INFO] [stderr]     Checking smol v0.1.18
[INFO] [stderr]     Checking async-std v1.6.2
[INFO] [stderr]    Migrating tests/lib.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/main.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/async.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.27s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking merkle-tree-stream v0.12.1 (/tmp/fixit)
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking blocking v0.4.6
[INFO] [stderr]     Checking smol v0.1.18
[INFO] [stderr]     Checking async-std v1.6.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.37s
[INFO] running `Command { std: "docker" "inspect" "bec659ff9d59814c8422bf31a5f579ca5a6ef51f3992c1aa4a8e487e779c4823", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bec659ff9d59814c8422bf31a5f579ca5a6ef51f3992c1aa4a8e487e779c4823", kill_on_drop: false }`
[INFO] [stdout] bec659ff9d59814c8422bf31a5f579ca5a6ef51f3992c1aa4a8e487e779c4823