[INFO] cloning repository https://github.com/charleslf2/wifi_qr_codes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/charleslf2/wifi_qr_codes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcharleslf2%2Fwifi_qr_codes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcharleslf2%2Fwifi_qr_codes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 939f99984298c0fbade196e3b10c90cd21a32851
[INFO] checking charleslf2/wifi_qr_codes/939f99984298c0fbade196e3b10c90cd21a32851 against master#613bdd49978298648ed05ace086bd1ecad54b44a for pr-136458
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcharleslf2%2Fwifi_qr_codes" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/charleslf2/wifi_qr_codes on toolchain 613bdd49978298648ed05ace086bd1ecad54b44a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+613bdd49978298648ed05ace086bd1ecad54b44a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/charleslf2/wifi_qr_codes
[INFO] finished tweaking git repo https://github.com/charleslf2/wifi_qr_codes
[INFO] tweaked toml for git repo https://github.com/charleslf2/wifi_qr_codes written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/charleslf2/wifi_qr_codes 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" "+613bdd49978298648ed05ace086bd1ecad54b44a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded qrcode-generator v1.0.6
[INFO] [stderr]   Downloaded wifi-qr-code v0.1.0
[INFO] [stderr]   Downloaded xml-rs v0.8.11
[INFO] [stderr]   Downloaded windows-implement v0.42.0
[INFO] [stderr]   Downloaded atspi-macros v0.1.4
[INFO] [stderr]   Downloaded atomic_refcell v0.1.10
[INFO] [stderr]   Downloaded accesskit_macos v0.5.0
[INFO] [stderr]   Downloaded atspi v0.8.7
[INFO] [stderr]   Downloaded accesskit_consumer v0.13.0
[INFO] [stderr]   Downloaded accesskit_windows v0.12.0
[INFO] [stderr]   Downloaded eframe v0.21.3
[INFO] [stderr]   Downloaded serde-xml-rs v0.4.1
[INFO] [stderr]   Downloaded accesskit_unix v0.2.0
[INFO] [stderr]   Downloaded accesskit_winit v0.10.0
[INFO] [stderr]   Downloaded accesskit v0.9.0
[INFO] [stderr]   Downloaded qrcodegen v1.4.0
[INFO] [stderr]   Downloaded rc-writer v1.1.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+613bdd49978298648ed05ace086bd1ecad54b44a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41b3ed33663f4f6168fe7028ca07ef70a34f996efcb07f35f9d08671e9aaecec
[INFO] running `Command { std: "docker" "start" "-a" "41b3ed33663f4f6168fe7028ca07ef70a34f996efcb07f35f9d08671e9aaecec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41b3ed33663f4f6168fe7028ca07ef70a34f996efcb07f35f9d08671e9aaecec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41b3ed33663f4f6168fe7028ca07ef70a34f996efcb07f35f9d08671e9aaecec", kill_on_drop: false }`
[INFO] [stdout] 41b3ed33663f4f6168fe7028ca07ef70a34f996efcb07f35f9d08671e9aaecec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+613bdd49978298648ed05ace086bd1ecad54b44a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b751ea9eecbf0cf30d9f4843dd7814d045305ca71f9f497e1517df37e9ce528f
[INFO] running `Command { std: "docker" "start" "-a" "b751ea9eecbf0cf30d9f4843dd7814d045305ca71f9f497e1517df37e9ce528f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling proc-macro2 v1.0.58
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling xml-rs v0.8.11
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.58/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]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b751ea9eecbf0cf30d9f4843dd7814d045305ca71f9f497e1517df37e9ce528f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b751ea9eecbf0cf30d9f4843dd7814d045305ca71f9f497e1517df37e9ce528f", kill_on_drop: false }`
[INFO] [stdout] b751ea9eecbf0cf30d9f4843dd7814d045305ca71f9f497e1517df37e9ce528f