[INFO] fetching crate snafu 0.7.0-beta.0...
[INFO] checking snafu-0.7.0-beta.0 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate snafu 0.7.0-beta.0 into /workspace/builds/worker-35/source
[INFO] validating manifest of crates.io crate snafu 0.7.0-beta.0 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 snafu 0.7.0-beta.0
[INFO] finished tweaking crates.io crate snafu 0.7.0-beta.0
[INFO] tweaked toml for crates.io crate snafu 0.7.0-beta.0 written to /workspace/builds/worker-35/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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded snafu-derive v0.7.0-beta.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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] 8a425965bd89bb5cef38537ba18269e9be7161c52165c979e11f61e58dc5c935
[INFO] running `Command { std: "docker" "start" "-a" "8a425965bd89bb5cef38537ba18269e9be7161c52165c979e11f61e58dc5c935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a425965bd89bb5cef38537ba18269e9be7161c52165c979e11f61e58dc5c935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a425965bd89bb5cef38537ba18269e9be7161c52165c979e11f61e58dc5c935", kill_on_drop: false }`
[INFO] [stdout] 8a425965bd89bb5cef38537ba18269e9be7161c52165c979e11f61e58dc5c935
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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] 8899b9968aff45c026f35b8f2d13beec0a757710b58e2f3f74267c18b4e4716c
[INFO] running `Command { std: "docker" "start" "-a" "8899b9968aff45c026f35b8f2d13beec0a757710b58e2f3f74267c18b4e4716c", 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 proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling snafu-derive v0.7.0-beta.0
[INFO] [stderr]     Checking snafu v0.7.0-beta.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/no_context.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/default_error_display.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/generics.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/backtrace.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/source_attributes.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/ensure.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/generics_with_default.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/recursive_error.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/multiple_attributes.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/send_between_threads.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/backtrace-optional-enabled.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/build-leaf-error.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/backtrace_attributes.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/raw_idents.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/doc_comment.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/basic.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/opaque.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/name-conflicts.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/options.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/stringly_typed.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/context_selector_name.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/mapping_result_without_try_operator.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/structs.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/premade_error.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/boxed_error_trait_object.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/single_use_lifetimes_lint.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/backtrace-optional.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/visibility.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.01s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking snafu v0.7.0-beta.0 (/tmp/fixit)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `Command { std: "docker" "inspect" "8899b9968aff45c026f35b8f2d13beec0a757710b58e2f3f74267c18b4e4716c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8899b9968aff45c026f35b8f2d13beec0a757710b58e2f3f74267c18b4e4716c", kill_on_drop: false }`
[INFO] [stdout] 8899b9968aff45c026f35b8f2d13beec0a757710b58e2f3f74267c18b4e4716c