[INFO] fetching crate cfg_me 0.1.0...
[INFO] checking cfg_me-0.1.0 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate cfg_me 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate cfg_me 0.1.0 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 cfg_me 0.1.0
[INFO] finished tweaking crates.io crate cfg_me 0.1.0
[INFO] tweaked toml for crates.io crate cfg_me 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate cfg_me 0.1.0 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]  Downloading crates ...
[INFO] [stderr]   Downloaded configure_me_codegen v0.3.12
[INFO] [stderr]   Downloaded cargo_toml v0.8.0
[INFO] [stderr]   Downloaded configure_me v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] f1ac0323be4000945f098667b864d8d99cf06df04c6547730cb8f06d4ab35664
[INFO] running `Command { std: "docker" "start" "-a" "f1ac0323be4000945f098667b864d8d99cf06df04c6547730cb8f06d4ab35664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1ac0323be4000945f098667b864d8d99cf06df04c6547730cb8f06d4ab35664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1ac0323be4000945f098667b864d8d99cf06df04c6547730cb8f06d4ab35664", kill_on_drop: false }`
[INFO] [stdout] f1ac0323be4000945f098667b864d8d99cf06df04c6547730cb8f06d4ab35664
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] bdf21100b9c7791d22190a37d847515e1e97736ca7af31caa06927f059a63d20
[INFO] running `Command { std: "docker" "start" "-a" "bdf21100b9c7791d22190a37d847515e1e97736ca7af31caa06927f059a63d20", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling configure_me_codegen v0.3.12
[INFO] [stderr]    Compiling roff v0.1.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling fmt2io v0.1.0
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking parse_arg v0.1.4
[INFO] [stderr]     Checking man v0.1.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking toml v0.5.3
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling cargo_toml v0.8.0
[INFO] [stderr]     Checking configure_me v0.3.3
[INFO] [stderr]    Compiling cfg_me v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating build.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.32s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]    Compiling cfg_me v0.1.0 (/tmp/fixit)
[INFO] [stderr] error: failed to run custom build command for `cfg_me v0.1.0 (/tmp/fixit)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/cfg_me-c7571b1dd5d45a5a/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: failed to process manifest: faild to load Cargo manifest from /tmp/fixit/Cargo.toml: unknown variant `2021`, expected `2015` or `2018` for key `package.edition` at line 21 column 1
[INFO] [stderr] error: failed to check after updating to 2021
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `cargo check --frozen --all --all-targets --message-format=json` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "bdf21100b9c7791d22190a37d847515e1e97736ca7af31caa06927f059a63d20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdf21100b9c7791d22190a37d847515e1e97736ca7af31caa06927f059a63d20", kill_on_drop: false }`
[INFO] [stdout] bdf21100b9c7791d22190a37d847515e1e97736ca7af31caa06927f059a63d20