[INFO] cloning repository https://github.com/developerworks/crate_demo_config
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/developerworks/crate_demo_config" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeveloperworks%2Fcrate_demo_config", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeveloperworks%2Fcrate_demo_config'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2367ecc36bdea6290b712a46f761ea89380c1fd7
[INFO] checking developerworks/crate_demo_config against master#f9515fdd5aa132e27d9b580a35b27f4b453251c1 for pr-125923
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeveloperworks%2Fcrate_demo_config" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/developerworks/crate_demo_config on toolchain f9515fdd5aa132e27d9b580a35b27f4b453251c1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9515fdd5aa132e27d9b580a35b27f4b453251c1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/developerworks/crate_demo_config
[INFO] finished tweaking git repo https://github.com/developerworks/crate_demo_config
[INFO] tweaked toml for git repo https://github.com/developerworks/crate_demo_config written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/developerworks/crate_demo_config 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" "+f9515fdd5aa132e27d9b580a35b27f4b453251c1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking developerworks/crate_demo_config against try#71235522a9cf955f6b7ff56c0bfb2651ecd0180b for pr-125923
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeveloperworks%2Fcrate_demo_config" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/developerworks/crate_demo_config on toolchain 71235522a9cf955f6b7ff56c0bfb2651ecd0180b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+71235522a9cf955f6b7ff56c0bfb2651ecd0180b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/developerworks/crate_demo_config
[INFO] finished tweaking git repo https://github.com/developerworks/crate_demo_config
[INFO] tweaked toml for git repo https://github.com/developerworks/crate_demo_config written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/developerworks/crate_demo_config 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" "+71235522a9cf955f6b7ff56c0bfb2651ecd0180b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking developerworks/crate_demo_config against try#71235522a9cf955f6b7ff56c0bfb2651ecd0180b for pr-125923
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeveloperworks%2Fcrate_demo_config" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/developerworks/crate_demo_config on toolchain 71235522a9cf955f6b7ff56c0bfb2651ecd0180b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+71235522a9cf955f6b7ff56c0bfb2651ecd0180b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/developerworks/crate_demo_config
[INFO] finished tweaking git repo https://github.com/developerworks/crate_demo_config
[INFO] tweaked toml for git repo https://github.com/developerworks/crate_demo_config written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/developerworks/crate_demo_config 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" "+71235522a9cf955f6b7ff56c0bfb2651ecd0180b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking developerworks/crate_demo_config against try#71235522a9cf955f6b7ff56c0bfb2651ecd0180b for pr-125923
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeveloperworks%2Fcrate_demo_config" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/developerworks/crate_demo_config on toolchain 71235522a9cf955f6b7ff56c0bfb2651ecd0180b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+71235522a9cf955f6b7ff56c0bfb2651ecd0180b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/developerworks/crate_demo_config
[INFO] finished tweaking git repo https://github.com/developerworks/crate_demo_config
[INFO] tweaked toml for git repo https://github.com/developerworks/crate_demo_config written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/developerworks/crate_demo_config 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" "+71235522a9cf955f6b7ff56c0bfb2651ecd0180b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.146
[INFO] [stderr]   Downloaded serde v1.0.146
[INFO] [stderr]   Downloaded config v0.13.2
[INFO] [stderr]   Downloaded pest v2.4.0
[INFO] [stderr]   Downloaded pest_meta v2.4.0
[INFO] [stderr]   Downloaded pest_generator v2.4.0
[INFO] [stderr]   Downloaded pest_derive v2.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+71235522a9cf955f6b7ff56c0bfb2651ecd0180b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecfd67b7d425ee6709d7d7b2a978d8ff0510cad7cc08a6c89253b75b53aa4d12
[INFO] running `Command { std: "docker" "start" "-a" "ecfd67b7d425ee6709d7d7b2a978d8ff0510cad7cc08a6c89253b75b53aa4d12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecfd67b7d425ee6709d7d7b2a978d8ff0510cad7cc08a6c89253b75b53aa4d12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecfd67b7d425ee6709d7d7b2a978d8ff0510cad7cc08a6c89253b75b53aa4d12", kill_on_drop: false }`
[INFO] [stdout] ecfd67b7d425ee6709d7d7b2a978d8ff0510cad7cc08a6c89253b75b53aa4d12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+71235522a9cf955f6b7ff56c0bfb2651ecd0180b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c30a79f64372c354b3ccff7a480416c92c00c2fa3f26edf68612107ff7f50225
[INFO] running `Command { std: "docker" "start" "-a" "c30a79f64372c354b3ccff7a480416c92c00c2fa3f26edf68612107ff7f50225", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]     Checking futures-sink v0.3.25
[INFO] [stderr]    Compiling serde_derive v1.0.146
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling serde v1.0.146
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking slab v0.4.7
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]    Compiling openssl v0.10.42
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/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 native-tls v0.2.10
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]    Compiling serde_json v1.0.87
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling async-trait v0.1.58
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]     Checking dlv-list v0.3.0
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking block-buffer v0.10.3
[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" "c30a79f64372c354b3ccff7a480416c92c00c2fa3f26edf68612107ff7f50225", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c30a79f64372c354b3ccff7a480416c92c00c2fa3f26edf68612107ff7f50225", kill_on_drop: false }`
[INFO] [stdout] c30a79f64372c354b3ccff7a480416c92c00c2fa3f26edf68612107ff7f50225