[INFO] cloning repository https://github.com/4LT/qmpp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/4LT/qmpp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4LT%2Fqmpp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4LT%2Fqmpp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 46e44034396df1741dd213fd09a7b21f227408d3
[INFO] checking 4LT/qmpp against try#863511eff87e66198b396935f3b5c8a543022f53 for pr-139493-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4LT%2Fqmpp" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/4LT/qmpp
[INFO] finished tweaking git repo https://github.com/4LT/qmpp
[INFO] tweaked toml for git repo https://github.com/4LT/qmpp written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/4LT/qmpp on toolchain 863511eff87e66198b396935f3b5c8a543022f53
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+863511eff87e66198b396935f3b5c8a543022f53" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/4LT/qmpp 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" "+863511eff87e66198b396935f3b5c8a543022f53" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+863511eff87e66198b396935f3b5c8a543022f53" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e183ff0c0dfb75f895ae9b17fd22ce84db245021db53d50e9b604136b407940b
[INFO] running `Command { std: "docker" "start" "-a" "e183ff0c0dfb75f895ae9b17fd22ce84db245021db53d50e9b604136b407940b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e183ff0c0dfb75f895ae9b17fd22ce84db245021db53d50e9b604136b407940b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e183ff0c0dfb75f895ae9b17fd22ce84db245021db53d50e9b604136b407940b", kill_on_drop: false }`
[INFO] [stdout] e183ff0c0dfb75f895ae9b17fd22ce84db245021db53d50e9b604136b407940b
[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" "+863511eff87e66198b396935f3b5c8a543022f53" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e575917029e7db02693b01c9842841a838ddf25e73d04b00cb5a9f09b73d3f47
[INFO] running `Command { std: "docker" "start" "-a" "e575917029e7db02693b01c9842841a838ddf25e73d04b00cb5a9f09b73d3f47", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling quote v1.0.25
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling serde_derive v1.0.155
[INFO] [stderr]    Compiling serde v1.0.155
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.52/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 log v0.4.17
[INFO] [stderr]    Compiling io-lifetimes v1.0.6
[INFO] [stderr]    Compiling rustix v0.36.9
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking tinyvec v1.6.0
[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" "e575917029e7db02693b01c9842841a838ddf25e73d04b00cb5a9f09b73d3f47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e575917029e7db02693b01c9842841a838ddf25e73d04b00cb5a9f09b73d3f47", kill_on_drop: false }`
[INFO] [stdout] e575917029e7db02693b01c9842841a838ddf25e73d04b00cb5a9f09b73d3f47
