[INFO] cloning repository https://github.com/webcompat/knowledge-base
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/webcompat/knowledge-base" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwebcompat%2Fknowledge-base", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwebcompat%2Fknowledge-base'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 492436866a099fd9d51609b496716c551b5d6613
[INFO] checking webcompat/knowledge-base against master#6162f6f12339aa81fe16b8a64644ead497e411b2 for pr-113240
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwebcompat%2Fknowledge-base" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/webcompat/knowledge-base on toolchain 6162f6f12339aa81fe16b8a64644ead497e411b2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/webcompat/knowledge-base
[INFO] finished tweaking git repo https://github.com/webcompat/knowledge-base
[INFO] tweaked toml for git repo https://github.com/webcompat/knowledge-base written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/webcompat/knowledge-base already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: some crates are on edition 2021 which defaults to `resolver = "2"`, but virtual workspaces default to `resolver = "1"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded ahash v0.8.0
[INFO] [stderr]   Downloaded supports-color v1.3.0
[INFO] [stderr]   Downloaded supports-unicode v1.0.2
[INFO] [stderr]   Downloaded is_ci v1.1.1
[INFO] [stderr]   Downloaded supports-hyperlinks v1.2.0
[INFO] [stderr]   Downloaded num-cmp v0.1.0
[INFO] [stderr]   Downloaded miette-derive v5.4.1
[INFO] [stderr]   Downloaded num-complex v0.4.2
[INFO] [stderr]   Downloaded fancy-regex v0.10.0
[INFO] [stderr]   Downloaded jsonschema v0.16.1
[INFO] [stderr]   Downloaded fraction v0.12.1
[INFO] [stderr]   Downloaded iso8601 v0.5.0
[INFO] [stderr]   Downloaded num v0.4.0
[INFO] [stderr]   Downloaded miette v5.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16b44eb7d1f45663cd51698ad4dd4bd7030ac4b6b3d1d2fceb9a31cac4102737
[INFO] running `Command { std: "docker" "start" "-a" "16b44eb7d1f45663cd51698ad4dd4bd7030ac4b6b3d1d2fceb9a31cac4102737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16b44eb7d1f45663cd51698ad4dd4bd7030ac4b6b3d1d2fceb9a31cac4102737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16b44eb7d1f45663cd51698ad4dd4bd7030ac4b6b3d1d2fceb9a31cac4102737", kill_on_drop: false }`
[INFO] [stdout] 16b44eb7d1f45663cd51698ad4dd4bd7030ac4b6b3d1d2fceb9a31cac4102737
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c45169d145e9d70e4f1d4f32e79d6385741eeb067390ecb78aba199a11822898
[INFO] running `Command { std: "docker" "start" "-a" "c45169d145e9d70e4f1d4f32e79d6385741eeb067390ecb78aba199a11822898", kill_on_drop: false }`
[INFO] [stderr] warning: some crates are on edition 2021 which defaults to `resolver = "2"`, but virtual workspaces default to `resolver = "1"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling openssl-sys v0.9.77
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling aho-corasick v0.7.19
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stdout] error[E0422]: cannot find struct, variant or union type `LineColumn` in crate `proc_macro`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/src/wrapper.rs:479:33
[INFO] [stdout]     |
[INFO] [stdout] 479 |                 let proc_macro::LineColumn { line, column } = s.start();
[INFO] [stdout]     |                                 ^^^^^^^^^^ not found in `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 1   + use crate::LineColumn;
[INFO] [stdout]     |
[INFO] [stdout] 1   + use crate::fallback::LineColumn;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `LineColumn`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 479 -                 let proc_macro::LineColumn { line, column } = s.start();
[INFO] [stdout] 479 +                 let LineColumn { line, column } = s.start();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0422]: cannot find struct, variant or union type `LineColumn` in crate `proc_macro`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/src/wrapper.rs:496:33
[INFO] [stdout]     |
[INFO] [stdout] 496 |                 let proc_macro::LineColumn { line, column } = s.end();
[INFO] [stdout]     |                                 ^^^^^^^^^^ not found in `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 1   + use crate::LineColumn;
[INFO] [stdout]     |
[INFO] [stdout] 1   + use crate::fallback::LineColumn;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `LineColumn`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 496 -                 let proc_macro::LineColumn { line, column } = s.end();
[INFO] [stdout] 496 +                 let LineColumn { line, column } = s.end();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ahash v0.7.6
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0422, E0635.
[INFO] [stdout] 
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stdout] For more information about an error, try `rustc --explain E0422`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c45169d145e9d70e4f1d4f32e79d6385741eeb067390ecb78aba199a11822898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c45169d145e9d70e4f1d4f32e79d6385741eeb067390ecb78aba199a11822898", kill_on_drop: false }`
[INFO] [stdout] c45169d145e9d70e4f1d4f32e79d6385741eeb067390ecb78aba199a11822898