[INFO] fetching crate ringbahn 0.0.0-experimental.3...
[INFO] checking ringbahn-0.0.0-experimental.3 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate ringbahn 0.0.0-experimental.3 into /workspace/builds/worker-43/source
[INFO] validating manifest of crates.io crate ringbahn 0.0.0-experimental.3 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 ringbahn 0.0.0-experimental.3
[INFO] finished tweaking crates.io crate ringbahn 0.0.0-experimental.3
[INFO] tweaked toml for crates.io crate ringbahn 0.0.0-experimental.3 written to /workspace/builds/worker-43/source/Cargo.toml
[INFO] crate crates.io crate ringbahn 0.0.0-experimental.3 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]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-io v0.3.5
[INFO] [stderr]   Downloaded once_cell v1.3.1
[INFO] [stderr]   Downloaded pin-project v0.4.16
[INFO] [stderr]   Downloaded futures-macro v0.3.5
[INFO] [stderr]   Downloaded futures-channel v0.3.5
[INFO] [stderr]   Downloaded quote v1.0.5
[INFO] [stderr]   Downloaded futures-executor v0.3.5
[INFO] [stderr]   Downloaded futures-sink v0.3.5
[INFO] [stderr]   Downloaded proc-macro2 v1.0.18
[INFO] [stderr]   Downloaded futures-task v0.3.5
[INFO] [stderr]   Downloaded futures-core v0.3.5
[INFO] [stderr]   Downloaded event-listener v1.2.0
[INFO] [stderr]   Downloaded access-queue v1.1.0
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.4
[INFO] [stderr]   Downloaded futures v0.3.5
[INFO] [stderr]   Downloaded cc v1.0.52
[INFO] [stderr]   Downloaded nix v0.16.1
[INFO] [stderr]   Downloaded futures-util v0.3.5
[INFO] [stderr]   Downloaded syn v1.0.30
[INFO] [stderr]   Downloaded iou v0.0.0-ringbahn.1
[INFO] [stderr]   Downloaded pin-project-internal v0.4.16
[INFO] [stderr]   Downloaded uring-sys v0.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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] f2620e2702fa2e056c2213b7b353603b8d3152b733338a5d3fd844310d5dc58f
[INFO] running `Command { std: "docker" "start" "-a" "f2620e2702fa2e056c2213b7b353603b8d3152b733338a5d3fd844310d5dc58f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2620e2702fa2e056c2213b7b353603b8d3152b733338a5d3fd844310d5dc58f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2620e2702fa2e056c2213b7b353603b8d3152b733338a5d3fd844310d5dc58f", kill_on_drop: false }`
[INFO] [stdout] f2620e2702fa2e056c2213b7b353603b8d3152b733338a5d3fd844310d5dc58f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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] ba3c6ed3aad184545af49e4a1c00044424d20a9557b7af0b8397463a0df80a7b
[INFO] running `Command { std: "docker" "start" "-a" "ba3c6ed3aad184545af49e4a1c00044424d20a9557b7af0b8397463a0df80a7b", 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]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking event-listener v1.2.0
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking access-queue v1.1.0
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling uring-sys v0.6.1
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking iou v0.0.0-ringbahn.1
[INFO] [stderr]     Checking ringbahn v0.0.0-experimental.3 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]    Compiling pin-project-internal v0.4.16
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]     Checking pin-project v0.4.16
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]    Migrating tests/basic-write.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/file-read.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/echo-server.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/read-event.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/file-seek.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/echo-client.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/file-write.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/copy-file.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/basic-read.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.09s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking ringbahn v0.0.0-experimental.3 (/tmp/fixit)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "ba3c6ed3aad184545af49e4a1c00044424d20a9557b7af0b8397463a0df80a7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba3c6ed3aad184545af49e4a1c00044424d20a9557b7af0b8397463a0df80a7b", kill_on_drop: false }`
[INFO] [stdout] ba3c6ed3aad184545af49e4a1c00044424d20a9557b7af0b8397463a0df80a7b