[INFO] fetching crate chatterpipe 0.1.4...
[INFO] testing chatterpipe-0.1.4 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate chatterpipe 0.1.4 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate chatterpipe 0.1.4
[INFO] finished tweaking crates.io crate chatterpipe 0.1.4
[INFO] tweaked toml for crates.io crate chatterpipe 0.1.4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate chatterpipe 0.1.4 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 crates.io crate chatterpipe 0.1.4 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 989c1cfd01a37f8ddf03ba13012612ca1c55dddb8e1fa67f44f490c1a539cfe9
[INFO] running `Command { std: "docker" "start" "-a" "989c1cfd01a37f8ddf03ba13012612ca1c55dddb8e1fa67f44f490c1a539cfe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "989c1cfd01a37f8ddf03ba13012612ca1c55dddb8e1fa67f44f490c1a539cfe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "989c1cfd01a37f8ddf03ba13012612ca1c55dddb8e1fa67f44f490c1a539cfe9", kill_on_drop: false }`
[INFO] [stdout] 989c1cfd01a37f8ddf03ba13012612ca1c55dddb8e1fa67f44f490c1a539cfe9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 61b76d1ef2faf152d08e689ffb67ec7c9244f6db8699ba74730993c99d9550ed
[INFO] running `Command { std: "docker" "start" "-a" "61b76d1ef2faf152d08e689ffb67ec7c9244f6db8699ba74730993c99d9550ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling serde_derive v1.0.162
[INFO] [stderr]    Compiling serde v1.0.162
[INFO] [stderr]    Compiling openssl-sys v0.9.87
[INFO] [stderr]    Compiling tokio v1.28.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling openssl v0.10.52
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling http-body v0.4.5
[INFO] [stderr]    Compiling regex-syntax v0.7.1
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling winnow v0.4.6
[INFO] [stderr]    Compiling bstr v1.4.0
[INFO] [stderr]    Compiling url v2.3.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/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 encoding_rs v0.8.32
[INFO] [stderr]    Compiling ipnet v2.7.2
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling native-tls v0.2.11
[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" "61b76d1ef2faf152d08e689ffb67ec7c9244f6db8699ba74730993c99d9550ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61b76d1ef2faf152d08e689ffb67ec7c9244f6db8699ba74730993c99d9550ed", kill_on_drop: false }`
[INFO] [stdout] 61b76d1ef2faf152d08e689ffb67ec7c9244f6db8699ba74730993c99d9550ed