[INFO] fetching crate weblab 0.3.5...
[INFO] building weblab-0.3.5 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate weblab 0.3.5 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate weblab 0.3.5
[INFO] finished tweaking crates.io crate weblab 0.3.5
[INFO] tweaked toml for crates.io crate weblab 0.3.5 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate weblab 0.3.5 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 86 packages to latest compatible versions
[INFO] [stderr]       Adding clap v3.2.25 (available: v4.5.48)
[INFO] [stderr]       Adding path-slash v0.1.5 (available: v0.2.1)
[INFO] [stderr]       Adding sanitize-filename v0.3.0 (available: v0.6.0)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] [stderr]       Adding zip v0.5.13 (available: v5.1.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a73bbfb8a551e1881097b359f896b8c74dfe0fa3b85907d7ebf413a2f20e1dbe
[INFO] running `Command { std: "docker" "start" "-a" "a73bbfb8a551e1881097b359f896b8c74dfe0fa3b85907d7ebf413a2f20e1dbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a73bbfb8a551e1881097b359f896b8c74dfe0fa3b85907d7ebf413a2f20e1dbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a73bbfb8a551e1881097b359f896b8c74dfe0fa3b85907d7ebf413a2f20e1dbe", kill_on_drop: false }`
[INFO] [stdout] a73bbfb8a551e1881097b359f896b8c74dfe0fa3b85907d7ebf413a2f20e1dbe
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96fdd77f2e963e1da4bc5ffd0a89e6f9c05a7c7b7fd79f6fd993a3aa5b1ee94f
[INFO] running `Command { std: "docker" "start" "-a" "96fdd77f2e963e1da4bc5ffd0a89e6f9c05a7c7b7fd79f6fd993a3aa5b1ee94f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling bzip2-sys v0.1.13+1.0.8
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling os_str_bytes v6.6.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling iana-time-zone v0.1.64
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling textwrap v0.16.2
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling flate2 v1.1.2
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling sanitize-filename v0.3.0
[INFO] [stderr]    Compiling pathdiff v0.2.3
[INFO] [stderr]    Compiling weblab-assignment-structure v0.3.4
[INFO] [stderr]    Compiling path-slash v0.1.5
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling bzip2 v0.4.4
[INFO] [stderr]    Compiling zip v0.5.13
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.25
[INFO] [stderr]    Compiling weblab-macros v0.3.5
[INFO] [stderr]    Compiling clap v3.2.25
[INFO] [stderr]    Compiling weblab v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.85s
[INFO] running `Command { std: "docker" "inspect" "96fdd77f2e963e1da4bc5ffd0a89e6f9c05a7c7b7fd79f6fd993a3aa5b1ee94f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96fdd77f2e963e1da4bc5ffd0a89e6f9c05a7c7b7fd79f6fd993a3aa5b1ee94f", kill_on_drop: false }`
[INFO] [stdout] 96fdd77f2e963e1da4bc5ffd0a89e6f9c05a7c7b7fd79f6fd993a3aa5b1ee94f
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6440a69c9e25c550c874fe9b4dc248b416e79fc7c83b566d6ae7a5f9624a989a
[INFO] running `Command { std: "docker" "start" "-a" "6440a69c9e25c550c874fe9b4dc248b416e79fc7c83b566d6ae7a5f9624a989a", kill_on_drop: false }`
[INFO] [stderr]    Compiling weblab v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `Command { std: "docker" "inspect" "6440a69c9e25c550c874fe9b4dc248b416e79fc7c83b566d6ae7a5f9624a989a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6440a69c9e25c550c874fe9b4dc248b416e79fc7c83b566d6ae7a5f9624a989a", kill_on_drop: false }`
[INFO] [stdout] 6440a69c9e25c550c874fe9b4dc248b416e79fc7c83b566d6ae7a5f9624a989a