[INFO] fetching crate cargo-snippet 0.6.5...
[INFO] checking cargo-snippet-0.6.5 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate cargo-snippet 0.6.5 into /workspace/builds/worker-98/source
[INFO] validating manifest of crates.io crate cargo-snippet 0.6.5 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-snippet 0.6.5
[INFO] finished tweaking crates.io crate cargo-snippet 0.6.5
[INFO] tweaked toml for crates.io crate cargo-snippet 0.6.5 written to /workspace/builds/worker-98/source/Cargo.toml
[INFO] crate crates.io crate cargo-snippet 0.6.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "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 ignore v0.4.16
[INFO] [stderr]   Downloaded serde v1.0.114
[INFO] [stderr]   Downloaded rustc-ap-rustc_attr v664.0.0
[INFO] [stderr]   Downloaded once_cell v1.4.0
[INFO] [stderr]   Downloaded termize v0.1.1
[INFO] [stderr]   Downloaded globset v0.4.5
[INFO] [stderr]   Downloaded either v1.5.3
[INFO] [stderr]   Downloaded parking_lot_core v0.7.2
[INFO] [stderr]   Downloaded unicode-normalization v0.1.13
[INFO] [stderr]   Downloaded rustc-ap-rustc_expand v664.0.0
[INFO] [stderr]   Downloaded hashbrown v0.8.1
[INFO] [stderr]   Downloaded stacker v0.1.9
[INFO] [stderr]   Downloaded rustc-rayon v0.3.0
[INFO] [stderr]   Downloaded tinyvec v0.3.3
[INFO] [stderr]   Downloaded rustc-ap-rustc_fs_util v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_arena v664.0.0
[INFO] [stderr]   Downloaded syn v1.0.34
[INFO] [stderr]   Downloaded annotate-snippets v0.6.1
[INFO] [stderr]   Downloaded bstr v0.2.13
[INFO] [stderr]   Downloaded rustc-ap-rustc_serialize v664.0.0
[INFO] [stderr]   Downloaded serde_json v1.0.56
[INFO] [stderr]   Downloaded byte-tools v0.3.1
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast v664.0.0
[INFO] [stderr]   Downloaded opaque-debug v0.2.3
[INFO] [stderr]   Downloaded block-buffer v0.7.3
[INFO] [stderr]   Downloaded md-5 v0.8.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_graphviz v664.0.0
[INFO] [stderr]   Downloaded measureme v0.7.1
[INFO] [stderr]   Downloaded generic-array v0.12.3
[INFO] [stderr]   Downloaded rustc-ap-rustc_target v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_session v664.0.0
[INFO] [stderr]   Downloaded ena v0.14.0
[INFO] [stderr]   Downloaded cargo_metadata v0.8.2
[INFO] [stderr]   Downloaded rustc-ap-rustc_macros v664.0.0
[INFO] [stderr]   Downloaded bytecount v0.6.0
[INFO] [stderr]   Downloaded rustfmt-nightly v1.4.18
[INFO] [stderr]   Downloaded byteorder v1.3.4
[INFO] [stderr]   Downloaded rustc-rayon-core v0.3.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast_pretty v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast_passes v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_errors v664.0.0
[INFO] [stderr]   Downloaded rustfmt-config_proc_macro v0.2.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_data_structures v664.0.0
[INFO] [stderr]   Downloaded proc-macro-error-attr v1.0.3
[INFO] [stderr]   Downloaded proc-macro-error v1.0.3
[INFO] [stderr]   Downloaded psm v0.1.10
[INFO] [stderr]   Downloaded proc-macro2 v1.0.18
[INFO] [stderr]   Downloaded rustc-ap-rustc_span v664.0.0
[INFO] [stderr]   Downloaded structopt v0.3.15
[INFO] [stderr]   Downloaded serde_derive v1.0.114
[INFO] [stderr]   Downloaded sha-1 v0.8.2
[INFO] [stderr]   Downloaded thiserror v1.0.20
[INFO] [stderr]   Downloaded rustc-ap-rustc_parse v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_feature v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_lexer v664.0.0
[INFO] [stderr]   Downloaded structopt-derive v0.4.8
[INFO] [stderr]   Downloaded term v0.6.1
[INFO] [stderr]   Downloaded itoa v0.4.6
[INFO] [stderr]   Downloaded rustc-ap-rustc_index v664.0.0
[INFO] [stderr]   Downloaded smallvec v1.4.1
[INFO] [stderr]   Downloaded parking_lot v0.10.2
[INFO] [stderr]   Downloaded crossbeam-deque v0.7.3
[INFO] [stderr]   Downloaded block-padding v0.1.5
[INFO] [stderr]   Downloaded digest v0.8.1
[INFO] [stderr]   Downloaded fake-simd v0.1.2
[INFO] [stderr]   Downloaded annotate-snippets v0.8.0
[INFO] [stderr]   Downloaded cc v1.0.58
[INFO] [stderr]   Downloaded thiserror-impl v1.0.20
[INFO] [stderr]   Downloaded memoffset v0.5.5
[INFO] [stderr]   Downloaded indexmap v1.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5a9ef0992d1bff0c60adc6226ac7c9b5d3243ce1febdf4e4c10856cf6ba73d5
[INFO] running `Command { std: "docker" "start" "-a" "a5a9ef0992d1bff0c60adc6226ac7c9b5d3243ce1febdf4e4c10856cf6ba73d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5a9ef0992d1bff0c60adc6226ac7c9b5d3243ce1febdf4e4c10856cf6ba73d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5a9ef0992d1bff0c60adc6226ac7c9b5d3243ce1febdf4e4c10856cf6ba73d5", kill_on_drop: false }`
[INFO] [stdout] a5a9ef0992d1bff0c60adc6226ac7c9b5d3243ce1febdf4e4c10856cf6ba73d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e9c9f3a4e3ebe334a7e59552146a87f9a7319ac57bcbe05ad49b368f1e6f117
[INFO] running `Command { std: "docker" "start" "-a" "8e9c9f3a4e3ebe334a7e59552146a87f9a7319ac57bcbe05ad49b368f1e6f117", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cargo-snippet v0.6.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.07s
[INFO] running `Command { std: "docker" "inspect" "8e9c9f3a4e3ebe334a7e59552146a87f9a7319ac57bcbe05ad49b368f1e6f117", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e9c9f3a4e3ebe334a7e59552146a87f9a7319ac57bcbe05ad49b368f1e6f117", kill_on_drop: false }`
[INFO] [stdout] 8e9c9f3a4e3ebe334a7e59552146a87f9a7319ac57bcbe05ad49b368f1e6f117