[INFO] fetching crate cargo-nbuild 0.1.2...
[INFO] checking cargo-nbuild-0.1.2 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate cargo-nbuild 0.1.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate cargo-nbuild 0.1.2 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-nbuild 0.1.2
[INFO] finished tweaking crates.io crate cargo-nbuild 0.1.2
[INFO] tweaked toml for crates.io crate cargo-nbuild 0.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate cargo-nbuild 0.1.2 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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded guppy-workspace-hack v0.1.0
[INFO] [stderr]   Downloaded cargo_metadata v0.15.4
[INFO] [stderr]   Downloaded target-lexicon v0.12.7
[INFO] [stderr]   Downloaded target-spec v1.4.0
[INFO] [stderr]   Downloaded nbuild-core v0.1.2
[INFO] [stderr]   Downloaded camino v1.1.4
[INFO] [stderr]   Downloaded winnow v0.4.6
[INFO] [stderr]   Downloaded cfg-expr v0.15.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f71e5c32d6146228dc93df13f4e74f77329483e93bed7a19387e598f69143ea
[INFO] running `Command { std: "docker" "start" "-a" "1f71e5c32d6146228dc93df13f4e74f77329483e93bed7a19387e598f69143ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f71e5c32d6146228dc93df13f4e74f77329483e93bed7a19387e598f69143ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f71e5c32d6146228dc93df13f4e74f77329483e93bed7a19387e598f69143ea", kill_on_drop: false }`
[INFO] [stdout] 1f71e5c32d6146228dc93df13f4e74f77329483e93bed7a19387e598f69143ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e26e08b5bfe6c6f130e36ea27022595467cd4ee0b2b5e64f2270c42b75f9c3a7
[INFO] running `Command { std: "docker" "start" "-a" "e26e08b5bfe6c6f130e36ea27022595467cd4ee0b2b5e64f2270c42b75f9c3a7", kill_on_drop: false }`
[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 serde v1.0.163
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling target-lexicon v0.12.7
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling guppy-workspace-hack v0.1.0
[INFO] [stderr]    Compiling camino v1.1.4
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking winnow v0.4.6
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.58/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]     Checking ryu v1.0.13
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]    Compiling target-spec v1.4.0
[INFO] [stderr]     Checking cfg-expr v0.15.1
[INFO] [stderr]    Compiling tokio v1.28.1
[INFO] [stderr]     Checking regex-syntax v0.7.2
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e26e08b5bfe6c6f130e36ea27022595467cd4ee0b2b5e64f2270c42b75f9c3a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e26e08b5bfe6c6f130e36ea27022595467cd4ee0b2b5e64f2270c42b75f9c3a7", kill_on_drop: false }`
[INFO] [stdout] e26e08b5bfe6c6f130e36ea27022595467cd4ee0b2b5e64f2270c42b75f9c3a7
[INFO] checking cargo-nbuild-0.1.2 against master#09bc67b9158392361780e779d32997f14cc75c39 for opaque-soundness-fix
[INFO] extracting crate cargo-nbuild 0.1.2 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate cargo-nbuild 0.1.2 on toolchain 09bc67b9158392361780e779d32997f14cc75c39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-nbuild 0.1.2
[INFO] finished tweaking crates.io crate cargo-nbuild 0.1.2
[INFO] tweaked toml for crates.io crate cargo-nbuild 0.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate cargo-nbuild 0.1.2 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" "+09bc67b9158392361780e779d32997f14cc75c39" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4567829856b9b43cd2d1d6a2289f595878c1d853c027431a542716c14fa1ae58
[INFO] running `Command { std: "docker" "start" "-a" "4567829856b9b43cd2d1d6a2289f595878c1d853c027431a542716c14fa1ae58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4567829856b9b43cd2d1d6a2289f595878c1d853c027431a542716c14fa1ae58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4567829856b9b43cd2d1d6a2289f595878c1d853c027431a542716c14fa1ae58", kill_on_drop: false }`
[INFO] [stdout] 4567829856b9b43cd2d1d6a2289f595878c1d853c027431a542716c14fa1ae58
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7959558372e26152de5b3989aa6afd1f9feea25e8fb01c61a4bd1750c408e4ba
[INFO] running `Command { std: "docker" "start" "-a" "7959558372e26152de5b3989aa6afd1f9feea25e8fb01c61a4bd1750c408e4ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.58
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling target-lexicon v0.12.7
[INFO] [stderr]    Compiling camino v1.1.4
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking winnow v0.4.6
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.58/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]     Checking unicode-bidi v0.3.13
[INFO] [stderr]    Compiling guppy-workspace-hack v0.1.0
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7959558372e26152de5b3989aa6afd1f9feea25e8fb01c61a4bd1750c408e4ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7959558372e26152de5b3989aa6afd1f9feea25e8fb01c61a4bd1750c408e4ba", kill_on_drop: false }`
[INFO] [stdout] 7959558372e26152de5b3989aa6afd1f9feea25e8fb01c61a4bd1750c408e4ba
