[INFO] fetching crate topgrade 7.0.0...
[INFO] checking topgrade-7.0.0 against master#0a8629bff642c3c3b84bb644c0099194f063b627 for pr-86231
[INFO] extracting crate topgrade 7.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate topgrade 7.0.0 on toolchain 0a8629bff642c3c3b84bb644c0099194f063b627
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate topgrade 7.0.0
[INFO] finished tweaking crates.io crate topgrade 7.0.0
[INFO] tweaked toml for crates.io crate topgrade 7.0.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate topgrade 7.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b7c609f8529e6328d92ca896fe1927242b899f0413cbbf5b56373f77e8c544d
[INFO] running `Command { std: "docker" "start" "-a" "4b7c609f8529e6328d92ca896fe1927242b899f0413cbbf5b56373f77e8c544d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b7c609f8529e6328d92ca896fe1927242b899f0413cbbf5b56373f77e8c544d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b7c609f8529e6328d92ca896fe1927242b899f0413cbbf5b56373f77e8c544d", kill_on_drop: false }`
[INFO] [stdout] 4b7c609f8529e6328d92ca896fe1927242b899f0413cbbf5b56373f77e8c544d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16033ebcfb36a6c1afeb89da7f3b76c1f651faa993c857e2bfaf6600dcb44e13
[INFO] running `Command { std: "docker" "start" "-a" "16033ebcfb36a6c1afeb89da7f3b76c1f651faa993c857e2bfaf6600dcb44e13", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling topgrade v7.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking once_cell v1.6.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking mio v0.7.8
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking directories v3.0.2
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking shellexpand v2.1.0
[INFO] [stderr]     Checking which v4.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking dlv-list v0.2.2
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking ordered-multimap v0.3.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rust-ini v0.17.0
[INFO] [stderr]     Checking regex v1.5.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking strum v0.20.0
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.69s
[INFO] running `Command { std: "docker" "inspect" "16033ebcfb36a6c1afeb89da7f3b76c1f651faa993c857e2bfaf6600dcb44e13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16033ebcfb36a6c1afeb89da7f3b76c1f651faa993c857e2bfaf6600dcb44e13", kill_on_drop: false }`
[INFO] [stdout] 16033ebcfb36a6c1afeb89da7f3b76c1f651faa993c857e2bfaf6600dcb44e13