[INFO] cloning repository https://github.com/iinux/rust_study
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iinux/rust_study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiinux%2Frust_study", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiinux%2Frust_study'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06ee86dffc00c244d9e0ada67406017bc881dd11
[INFO] checking iinux/rust_study against try#45b14c26f76a39a9945ef8518d3276f1bc880008 for pr-113242
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiinux%2Frust_study" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iinux/rust_study on toolchain 45b14c26f76a39a9945ef8518d3276f1bc880008
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+45b14c26f76a39a9945ef8518d3276f1bc880008" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iinux/rust_study
[INFO] finished tweaking git repo https://github.com/iinux/rust_study
[INFO] tweaked toml for git repo https://github.com/iinux/rust_study written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/iinux/rust_study 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" "+45b14c26f76a39a9945ef8518d3276f1bc880008" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: source
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+45b14c26f76a39a9945ef8518d3276f1bc880008" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7360221981d61b718d509dc0504eb73984161f0dcfc4d2fb17cc04fe044bcf5c
[INFO] running `Command { std: "docker" "start" "-a" "7360221981d61b718d509dc0504eb73984161f0dcfc4d2fb17cc04fe044bcf5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7360221981d61b718d509dc0504eb73984161f0dcfc4d2fb17cc04fe044bcf5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7360221981d61b718d509dc0504eb73984161f0dcfc4d2fb17cc04fe044bcf5c", kill_on_drop: false }`
[INFO] [stdout] 7360221981d61b718d509dc0504eb73984161f0dcfc4d2fb17cc04fe044bcf5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+45b14c26f76a39a9945ef8518d3276f1bc880008" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79f45055288384da3b14037320763aadb1d6d1d7024ed5070e96c756384822a8
[INFO] running `Command { std: "docker" "start" "-a" "79f45055288384da3b14037320763aadb1d6d1d7024ed5070e96c756384822a8", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: source
[INFO] [stderr]    Compiling proc-macro2 v1.0.57
[INFO] [stderr]    Compiling openssl-sys v0.9.87
[INFO] [stderr]    Compiling tokio v1.28.1
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]    Compiling openssl v0.10.52
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]     Checking ipnet v2.7.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.57/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 base64 v0.21.0
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stdout] error: aborting due to 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" "79f45055288384da3b14037320763aadb1d6d1d7024ed5070e96c756384822a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79f45055288384da3b14037320763aadb1d6d1d7024ed5070e96c756384822a8", kill_on_drop: false }`
[INFO] [stdout] 79f45055288384da3b14037320763aadb1d6d1d7024ed5070e96c756384822a8