[INFO] fetching crate select-random-fastx 0.1.1...
[INFO] checking select-random-fastx-0.1.1 against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] extracting crate select-random-fastx 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate select-random-fastx 0.1.1
[INFO] finished tweaking crates.io crate select-random-fastx 0.1.1
[INFO] tweaked toml for crates.io crate select-random-fastx 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate select-random-fastx 0.1.1 on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate select-random-fastx 0.1.1 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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] acacb30da191dc0406fe240fb63e7fe365ffc9184d19a45d65c8cbc8b87c2cf0
[INFO] running `Command { std: "docker" "start" "-a" "acacb30da191dc0406fe240fb63e7fe365ffc9184d19a45d65c8cbc8b87c2cf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acacb30da191dc0406fe240fb63e7fe365ffc9184d19a45d65c8cbc8b87c2cf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acacb30da191dc0406fe240fb63e7fe365ffc9184d19a45d65c8cbc8b87c2cf0", kill_on_drop: false }`
[INFO] [stdout] acacb30da191dc0406fe240fb63e7fe365ffc9184d19a45d65c8cbc8b87c2cf0
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fe46240dcae5486c4b044088e3e39e57d76a17033713a4dae28c349fa403ffb
[INFO] running `Command { std: "docker" "start" "-a" "1fe46240dcae5486c4b044088e3e39e57d76a17033713a4dae28c349fa403ffb", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling crossbeam-queue v0.3.6
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[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] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking clap_lex v0.3.0
[INFO] [stderr]     Checking console v0.15.2
[INFO] [stderr]    Compiling time-macros v0.2.5
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[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" "1fe46240dcae5486c4b044088e3e39e57d76a17033713a4dae28c349fa403ffb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fe46240dcae5486c4b044088e3e39e57d76a17033713a4dae28c349fa403ffb", kill_on_drop: false }`
[INFO] [stdout] 1fe46240dcae5486c4b044088e3e39e57d76a17033713a4dae28c349fa403ffb
