[INFO] fetching crate ttcore 0.2.35...
[INFO] checking ttcore-0.2.35 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate ttcore 0.2.35 into /workspace/builds/worker-53/source
[INFO] validating manifest of crates.io crate ttcore 0.2.35 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 ttcore 0.2.35
[INFO] finished tweaking crates.io crate ttcore 0.2.35
[INFO] tweaked toml for crates.io crate ttcore 0.2.35 written to /workspace/builds/worker-53/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 myutil v0.2.652
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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] 4e0a27ab47bfb0bbcb2f6b8731afa31e148e74755ce5ccdc687b04c9ab4759a9
[INFO] running `Command { std: "docker" "start" "-a" "4e0a27ab47bfb0bbcb2f6b8731afa31e148e74755ce5ccdc687b04c9ab4759a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e0a27ab47bfb0bbcb2f6b8731afa31e148e74755ce5ccdc687b04c9ab4759a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e0a27ab47bfb0bbcb2f6b8731afa31e148e74755ce5ccdc687b04c9ab4759a9", kill_on_drop: false }`
[INFO] [stdout] 4e0a27ab47bfb0bbcb2f6b8731afa31e148e74755ce5ccdc687b04c9ab4759a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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] 60b3039f72cdd1f7a971b86a8d589128523f66b056326fa68265cc40159c1a43
[INFO] running `Command { std: "docker" "start" "-a" "60b3039f72cdd1f7a971b86a8d589128523f66b056326fa68265cc40159c1a43", 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] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   standback v0.2.17 (as host dependency): std
[INFO] [stderr]   syn v1.0.75 (as host dependency): visit
[INFO] [stderr] 
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.129
[INFO] [stderr]     Checking futures-sink v0.3.16
[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]    Compiling serde v1.0.129
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking slab v0.4.4
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]     Checking futures-channel v0.3.16
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking myutil v0.2.652
[INFO] [stderr]     Checking futures-executor v0.3.16
[INFO] [stderr]     Checking futures v0.3.16
[INFO] [stderr]     Checking ttcore_def v0.2.35
[INFO] [stderr]     Checking ttcore v0.2.35 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.79s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.129
[INFO] [stderr]     Checking futures-util v0.3.16
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking time v0.2.27
[INFO] [stderr]     Checking myutil v0.2.652
[INFO] [stderr]     Checking futures-executor v0.3.16
[INFO] [stderr]     Checking futures v0.3.16
[INFO] [stderr]     Checking serde v1.0.129
[INFO] [stderr]     Checking serde_json v1.0.66
[INFO] [stderr]     Checking ttcore_def v0.2.35
[INFO] [stderr]     Checking ttcore v0.2.35 (/tmp/fixit)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.31s
[INFO] running `Command { std: "docker" "inspect" "60b3039f72cdd1f7a971b86a8d589128523f66b056326fa68265cc40159c1a43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60b3039f72cdd1f7a971b86a8d589128523f66b056326fa68265cc40159c1a43", kill_on_drop: false }`
[INFO] [stdout] 60b3039f72cdd1f7a971b86a8d589128523f66b056326fa68265cc40159c1a43