[INFO] fetching crate sosistab 0.5.43...
[INFO] testing sosistab-0.5.43 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate sosistab 0.5.43 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate sosistab 0.5.43
[INFO] finished tweaking crates.io crate sosistab 0.5.43
[INFO] tweaked toml for crates.io crate sosistab 0.5.43 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sosistab 0.5.43 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sosistab 0.5.43 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tabwriter v1.2.1
[INFO] [stderr]   Downloaded socksv5 v0.3.0
[INFO] [stderr]   Downloaded async-oneshot v0.4.2
[INFO] [stderr]   Downloaded futures-micro v0.3.1
[INFO] [stderr]   Downloaded st3 v0.4.0
[INFO] [stderr]   Downloaded async-io v1.10.0
[INFO] [stderr]   Downloaded arraymap v0.1.1
[INFO] [stderr]   Downloaded argh_shared v0.1.9
[INFO] [stderr]   Downloaded cached_proc_macro v0.7.1
[INFO] [stderr]   Downloaded async-rwlock v1.3.0
[INFO] [stderr]   Downloaded bloomfilter v1.0.9
[INFO] [stderr]   Downloaded argh_derive v0.1.9
[INFO] [stderr]   Downloaded rtrb v0.2.2
[INFO] [stderr]   Downloaded cached v0.26.2
[INFO] [stderr]   Downloaded arc-swap v1.5.1
[INFO] [stderr]   Downloaded quanta v0.10.1
[INFO] [stderr]   Downloaded raw-cpuid v10.6.0
[INFO] [stderr]   Downloaded async-process v1.5.0
[INFO] [stderr]   Downloaded eff-wordlist v1.0.2
[INFO] [stderr]   Downloaded moka v0.9.6
[INFO] [stderr]   Downloaded smol v1.2.5
[INFO] [stderr]   Downloaded dhat v0.2.4
[INFO] [stderr]   Downloaded camino v1.1.1
[INFO] [stderr]   Downloaded yasna v0.5.0
[INFO] [stderr]   Downloaded fastudp v0.1.6
[INFO] [stderr]   Downloaded argh v0.1.9
[INFO] [stderr]   Downloaded smol-timeout v0.6.0
[INFO] [stderr]   Downloaded smolscale v0.3.49
[INFO] [stderr]   Downloaded bipe v0.2.2
[INFO] [stderr]   Downloaded polling v2.4.0
[INFO] [stderr]   Downloaded generator v0.7.1
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ed9679d36b3b8c7640b5932800d606b56c11cd902d10bafb0c871042b910b9e
[INFO] running `Command { std: "docker" "start" "-a" "9ed9679d36b3b8c7640b5932800d606b56c11cd902d10bafb0c871042b910b9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ed9679d36b3b8c7640b5932800d606b56c11cd902d10bafb0c871042b910b9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ed9679d36b3b8c7640b5932800d606b56c11cd902d10bafb0c871042b910b9e", kill_on_drop: false }`
[INFO] [stdout] 9ed9679d36b3b8c7640b5932800d606b56c11cd902d10bafb0c871042b910b9e
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be07e8660027d9185baf8302a86e3ad0e14ef8994705c7194baf7e1083b3a6ed
[INFO] running `Command { std: "docker" "start" "-a" "be07e8660027d9185baf8302a86e3ad0e14ef8994705c7194baf7e1083b3a6ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling futures-io v0.3.25
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cache-padded v1.2.0
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling concurrent-queue v1.2.4
[INFO] [stderr]    Compiling polling v2.4.0
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling openssl-src v111.24.0+1.1.1s
[INFO] [stderr]    Compiling async-io v1.10.0
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/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 async-task v4.3.0
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling futures-lite v1.12.0
[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" "be07e8660027d9185baf8302a86e3ad0e14ef8994705c7194baf7e1083b3a6ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be07e8660027d9185baf8302a86e3ad0e14ef8994705c7194baf7e1083b3a6ed", kill_on_drop: false }`
[INFO] [stdout] be07e8660027d9185baf8302a86e3ad0e14ef8994705c7194baf7e1083b3a6ed