[INFO] fetching crate redsync 1.0.1...
[INFO] checking redsync-1.0.1 against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] extracting crate redsync 1.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate redsync 1.0.1 on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate redsync 1.0.1
[INFO] finished tweaking crates.io crate redsync 1.0.1
[INFO] tweaked toml for crates.io crate redsync 1.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate redsync 1.0.1 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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file `/workspace/builds/worker-4-tc1/source/examples/example.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `example`
[INFO] [stderr]   * `example` target `example`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redis v0.23.0
[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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5de1ef0dea349b95c740d7dfd56f58153858aafc6935ee6d51a9ee46b276c0ea
[INFO] running `Command { std: "docker" "start" "-a" "5de1ef0dea349b95c740d7dfd56f58153858aafc6935ee6d51a9ee46b276c0ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5de1ef0dea349b95c740d7dfd56f58153858aafc6935ee6d51a9ee46b276c0ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5de1ef0dea349b95c740d7dfd56f58153858aafc6935ee6d51a9ee46b276c0ea", kill_on_drop: false }`
[INFO] [stdout] 5de1ef0dea349b95c740d7dfd56f58153858aafc6935ee6d51a9ee46b276c0ea
[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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b99d00aec261b1b4fd1ad07eb578b267f5daffc0ad1b2c3659d6fe454b4288ca
[INFO] running `Command { std: "docker" "start" "-a" "b99d00aec261b1b4fd1ad07eb578b267f5daffc0ad1b2c3659d6fe454b4288ca", kill_on_drop: false }`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/examples/example.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `example`
[INFO] [stderr]   * `example` target `example`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking sha1_smol v1.0.0
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[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-macro2-1.0.56/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]     Checking idna v0.3.0
[INFO] [stderr]     Checking combine v4.6.6
[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" "b99d00aec261b1b4fd1ad07eb578b267f5daffc0ad1b2c3659d6fe454b4288ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b99d00aec261b1b4fd1ad07eb578b267f5daffc0ad1b2c3659d6fe454b4288ca", kill_on_drop: false }`
[INFO] [stdout] b99d00aec261b1b4fd1ad07eb578b267f5daffc0ad1b2c3659d6fe454b4288ca
[INFO] checking redsync-1.0.1 against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384
[INFO] extracting crate redsync 1.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate redsync 1.0.1 on toolchain dae34b759e282c069aa28752564694effd121a63
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate redsync 1.0.1
[INFO] finished tweaking crates.io crate redsync 1.0.1
[INFO] tweaked toml for crates.io crate redsync 1.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate redsync 1.0.1 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" "+dae34b759e282c069aa28752564694effd121a63" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file `/workspace/builds/worker-4-tc2/source/examples/example.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `example`
[INFO] [stderr]   * `example` target `example`
[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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c253655d849e65c8d1b25ca15d7b596d3f99fabbff700157c9351a0a4e5f66ae
[INFO] running `Command { std: "docker" "start" "-a" "c253655d849e65c8d1b25ca15d7b596d3f99fabbff700157c9351a0a4e5f66ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c253655d849e65c8d1b25ca15d7b596d3f99fabbff700157c9351a0a4e5f66ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c253655d849e65c8d1b25ca15d7b596d3f99fabbff700157c9351a0a4e5f66ae", kill_on_drop: false }`
[INFO] [stdout] c253655d849e65c8d1b25ca15d7b596d3f99fabbff700157c9351a0a4e5f66ae
[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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65e3767d94db70feda1637b2fd09a67f842efc9693a71d21cf56f123ecebd9a9
[INFO] running `Command { std: "docker" "start" "-a" "65e3767d94db70feda1637b2fd09a67f842efc9693a71d21cf56f123ecebd9a9", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "65e3767d94db70feda1637b2fd09a67f842efc9693a71d21cf56f123ecebd9a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65e3767d94db70feda1637b2fd09a67f842efc9693a71d21cf56f123ecebd9a9", kill_on_drop: false }`
[INFO] [stdout] 65e3767d94db70feda1637b2fd09a67f842efc9693a71d21cf56f123ecebd9a9