[INFO] fetching crate tf_observer 0.1.3...
[INFO] checking tf_observer-0.1.3 against try#de0e80659cee4f27282e60d63bbb8c5271a0d147 for pr-129392
[INFO] extracting crate tf_observer 0.1.3 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate tf_observer 0.1.3 on toolchain de0e80659cee4f27282e60d63bbb8c5271a0d147
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tf_observer 0.1.3
[INFO] finished tweaking crates.io crate tf_observer 0.1.3
[INFO] tweaked toml for crates.io crate tf_observer 0.1.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 61 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.13.0)
[INFO] [stderr]       Adding mockall v0.11.4 (latest: v0.13.0)
[INFO] [stderr]       Adding mockall_derive v0.11.4 (latest: v0.13.0)
[INFO] [stderr]       Adding mockito v0.31.1 (latest: v1.5.0)
[INFO] [stderr]       Adding predicates v2.1.5 (latest: v3.1.2)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] [stderr]       Adding termtree v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.59.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49f45d76d7995f716f65b83d9e3583af5715cc8af0b55f03f75cfa571fef6aa5
[INFO] running `Command { std: "docker" "start" "-a" "49f45d76d7995f716f65b83d9e3583af5715cc8af0b55f03f75cfa571fef6aa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49f45d76d7995f716f65b83d9e3583af5715cc8af0b55f03f75cfa571fef6aa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49f45d76d7995f716f65b83d9e3583af5715cc8af0b55f03f75cfa571fef6aa5", kill_on_drop: false }`
[INFO] [stdout] 49f45d76d7995f716f65b83d9e3583af5715cc8af0b55f03f75cfa571fef6aa5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f0ae7344e219db1942ef32912b5bc7fd6578db08f2088f868c0ffbed9fa3ad3
[INFO] running `Command { std: "docker" "start" "-a" "7f0ae7344e219db1942ef32912b5bc7fd6578db08f2088f868c0ffbed9fa3ad3", kill_on_drop: false }`
[INFO] [stderr]     Checking predicates-core v1.0.8
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking similar v2.6.0
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking tf_observer v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking assert-json-diff v2.0.2
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking predicates-tree v1.0.11
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking predicates v2.1.5
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling mockall_derive v0.11.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking mockito v0.31.1
[INFO] [stderr]     Checking mockall v0.11.4
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.78s
[INFO] running `Command { std: "docker" "inspect" "7f0ae7344e219db1942ef32912b5bc7fd6578db08f2088f868c0ffbed9fa3ad3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f0ae7344e219db1942ef32912b5bc7fd6578db08f2088f868c0ffbed9fa3ad3", kill_on_drop: false }`
[INFO] [stdout] 7f0ae7344e219db1942ef32912b5bc7fd6578db08f2088f868c0ffbed9fa3ad3