[INFO] fetching crate writing 0.2.1...
[INFO] building writing-0.2.1 against master#ee1c3b385b6673b6ef37d80dfabe048e993c2ae2 for pr-102832-1
[INFO] extracting crate writing 0.2.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate writing 0.2.1 on toolchain ee1c3b385b6673b6ef37d80dfabe048e993c2ae2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ee1c3b385b6673b6ef37d80dfabe048e993c2ae2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate writing 0.2.1
[INFO] finished tweaking crates.io crate writing 0.2.1
[INFO] tweaked toml for crates.io crate writing 0.2.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate writing 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ee1c3b385b6673b6ef37d80dfabe048e993c2ae2" "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 tree-sitter v0.19.3
[INFO] [stderr]   Downloaded pest_generator v2.1.3
[INFO] [stderr]   Downloaded pest_meta v2.1.3
[INFO] [stderr]   Downloaded walkdir v2.3.2
[INFO] [stderr]   Downloaded tree-sitter-rust v0.19.0
[INFO] [stderr]   Downloaded hashbrown v0.11.2
[INFO] [stderr]   Downloaded unicode-width v0.1.9
[INFO] [stderr]   Downloaded serde_derive v1.0.130
[INFO] [stderr]   Downloaded cc v1.0.71
[INFO] [stderr]   Downloaded tree-sitter-javascript v0.19.0
[INFO] [stderr]   Downloaded clap v3.0.0-beta.5
[INFO] [stderr]   Downloaded thiserror-impl v1.0.30
[INFO] [stderr]   Downloaded os_str_bytes v4.2.0
[INFO] [stderr]   Downloaded strsim v0.10.0
[INFO] [stderr]   Downloaded tree-sitter-java v0.19.0
[INFO] [stderr]   Downloaded maplit v1.0.2
[INFO] [stderr]   Downloaded ryu v1.0.5
[INFO] [stderr]   Downloaded same-file v1.0.6
[INFO] [stderr]   Downloaded unicode-xid v0.2.2
[INFO] [stderr]   Downloaded guarding_parser v0.2.6
[INFO] [stderr]   Downloaded autocfg v1.0.1
[INFO] [stderr]   Downloaded termcolor v1.1.2
[INFO] [stderr]   Downloaded version_check v0.9.3
[INFO] [stderr]   Downloaded unicode-segmentation v1.8.0
[INFO] [stderr]   Downloaded typenum v1.14.0
[INFO] [stderr]   Downloaded thiserror v1.0.30
[INFO] [stderr]   Downloaded pest v2.1.3
[INFO] [stderr]   Downloaded indexmap v1.7.0
[INFO] [stderr]   Downloaded ucd-trie v0.1.3
[INFO] [stderr]   Downloaded proc-macro2 v1.0.30
[INFO] [stderr]   Downloaded syn v1.0.80
[INFO] [stderr]   Downloaded serde v1.0.130
[INFO] [stderr]   Downloaded clap_derive v3.0.0-beta.5
[INFO] [stderr]   Downloaded regex-syntax v0.6.25
[INFO] [stderr]   Downloaded textwrap v0.14.2
[INFO] [stderr]   Downloaded pulldown-cmark v0.8.0
[INFO] [stderr]   Downloaded regex v1.5.4
[INFO] [stderr]   Downloaded guarding_core v0.2.6
[INFO] [stderr]   Downloaded sha-1 v0.8.2
[INFO] [stderr]   Downloaded pest_derive v2.1.0
[INFO] [stderr]   Downloaded libc v0.2.104
[INFO] [stderr]   Downloaded memchr v2.4.1
[INFO] [stderr]   Downloaded quote v1.0.10
[INFO] [stderr]   Downloaded aho-corasick v0.7.18
[INFO] [stderr]   Downloaded serde_json v1.0.68
[INFO] [stderr]   Downloaded guarding_ident v0.2.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+ee1c3b385b6673b6ef37d80dfabe048e993c2ae2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a087b386e432aeec9b10279fc8cf10a4f08bd2d98ab736552f8ed91acfe2221a
[INFO] running `Command { std: "docker" "start" "-a" "a087b386e432aeec9b10279fc8cf10a4f08bd2d98ab736552f8ed91acfe2221a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a087b386e432aeec9b10279fc8cf10a4f08bd2d98ab736552f8ed91acfe2221a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a087b386e432aeec9b10279fc8cf10a4f08bd2d98ab736552f8ed91acfe2221a", kill_on_drop: false }`
[INFO] [stdout] a087b386e432aeec9b10279fc8cf10a4f08bd2d98ab736552f8ed91acfe2221a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+ee1c3b385b6673b6ef37d80dfabe048e993c2ae2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eaf6e17de4b4fb12e77faf08f079740c78c015a3fa88ba1807feca111a01b87f
[INFO] running `Command { std: "docker" "start" "-a" "eaf6e17de4b4fb12e77faf08f079740c78c015a3fa88ba1807feca111a01b87f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling tree-sitter v0.19.3
[INFO] [stderr]    Compiling tree-sitter-java v0.19.0
[INFO] [stderr]    Compiling tree-sitter-rust v0.19.0
[INFO] [stderr]    Compiling tree-sitter-javascript v0.19.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling textwrap v0.14.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling os_str_bytes v4.2.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.5
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling clap v3.0.0-beta.5
[INFO] [stderr]    Compiling guarding_parser v0.2.6
[INFO] [stderr]    Compiling guarding_core v0.2.6
[INFO] [stderr]    Compiling guarding_ident v0.2.6
[INFO] [stderr]    Compiling writing v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 22s
[INFO] running `Command { std: "docker" "inspect" "eaf6e17de4b4fb12e77faf08f079740c78c015a3fa88ba1807feca111a01b87f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaf6e17de4b4fb12e77faf08f079740c78c015a3fa88ba1807feca111a01b87f", kill_on_drop: false }`
[INFO] [stdout] eaf6e17de4b4fb12e77faf08f079740c78c015a3fa88ba1807feca111a01b87f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+ee1c3b385b6673b6ef37d80dfabe048e993c2ae2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f79201e0fbc2d0d46e7344c30f2fe8e2169e686e9629bd67f21b592d9d2ce6f
[INFO] running `Command { std: "docker" "start" "-a" "6f79201e0fbc2d0d46e7344c30f2fe8e2169e686e9629bd67f21b592d9d2ce6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling writing v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.68s
[INFO] running `Command { std: "docker" "inspect" "6f79201e0fbc2d0d46e7344c30f2fe8e2169e686e9629bd67f21b592d9d2ce6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f79201e0fbc2d0d46e7344c30f2fe8e2169e686e9629bd67f21b592d9d2ce6f", kill_on_drop: false }`
[INFO] [stdout] 6f79201e0fbc2d0d46e7344c30f2fe8e2169e686e9629bd67f21b592d9d2ce6f