[INFO] cloning repository https://github.com/timokoesters/fourier
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/timokoesters/fourier" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimokoesters%2Ffourier", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimokoesters%2Ffourier'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 02b9682847651e0b04f4f2096354d6cbad66da49
[INFO] testing timokoesters/fourier against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimokoesters%2Ffourier" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/timokoesters/fourier
[INFO] finished tweaking git repo https://github.com/timokoesters/fourier
[INFO] tweaked toml for git repo https://github.com/timokoesters/fourier written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/timokoesters/fourier on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/timokoesters/fourier 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" "+b83b707f97d809763b7861afa7638871f3339a33" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] acd0f0f832043c0ba66ec6a9ee0069d6bf3998990eeb9ac8cda445d2314590a7
[INFO] running `Command { std: "docker" "start" "-a" "acd0f0f832043c0ba66ec6a9ee0069d6bf3998990eeb9ac8cda445d2314590a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acd0f0f832043c0ba66ec6a9ee0069d6bf3998990eeb9ac8cda445d2314590a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acd0f0f832043c0ba66ec6a9ee0069d6bf3998990eeb9ac8cda445d2314590a7", kill_on_drop: false }`
[INFO] [stdout] acd0f0f832043c0ba66ec6a9ee0069d6bf3998990eeb9ac8cda445d2314590a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1566c75483c4d1c7e1fea420d4e8ac5b7b79cf9f551f084b25947f5981b592ce
[INFO] running `Command { std: "docker" "start" "-a" "1566c75483c4d1c7e1fea420d4e8ac5b7b79cf9f551f084b25947f5981b592ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.84
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling futures-task v0.3.26
[INFO] [stderr]    Compiling rustversion v1.0.11
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling tokio v1.25.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling futures-util v0.3.26
[INFO] [stderr]    Compiling bumpalo v3.12.0
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]    Compiling wasm-bindgen v0.2.84
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling bytemuck v1.13.0
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling ash v0.37.2+1.3.238
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling futures-channel v0.3.26
[INFO] [stderr]    Compiling async-trait v0.1.64
[INFO] [stderr]    Compiling paste v1.0.11
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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 num_cpus v1.15.0
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling socket2 v0.4.7
[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" "1566c75483c4d1c7e1fea420d4e8ac5b7b79cf9f551f084b25947f5981b592ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1566c75483c4d1c7e1fea420d4e8ac5b7b79cf9f551f084b25947f5981b592ce", kill_on_drop: false }`
[INFO] [stdout] 1566c75483c4d1c7e1fea420d4e8ac5b7b79cf9f551f084b25947f5981b592ce