[INFO] cloning repository https://github.com/ethanrusz/echbot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ethanrusz/echbot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethanrusz%2Fechbot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethanrusz%2Fechbot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ecb0e2af307e91c5b5f56d9a1804bc2d7a376b44
[INFO] checking ethanrusz/echbot against try#e5b0618d996a6a3941e423fd3e170737b8dbdc92 for pr-151822
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethanrusz%2Fechbot" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ethanrusz/echbot
[INFO] finished tweaking git repo https://github.com/ethanrusz/echbot
[INFO] tweaked toml for git repo https://github.com/ethanrusz/echbot written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ethanrusz/echbot on toolchain e5b0618d996a6a3941e423fd3e170737b8dbdc92
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e5b0618d996a6a3941e423fd3e170737b8dbdc92" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ethanrusz/echbot 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" "+e5b0618d996a6a3941e423fd3e170737b8dbdc92" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded poise_macros v0.5.2
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.86
[INFO] [stderr]   Downloaded dashmap v5.4.0
[INFO] [stderr]   Downloaded rustls-pemfile v1.0.1
[INFO] [stderr]   Downloaded async-trait v0.1.61
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.86
[INFO] [stderr]   Downloaded security-framework v2.7.0
[INFO] [stderr]   Downloaded cxx-build v1.0.86
[INFO] [stderr]   Downloaded poise v0.5.2
[INFO] [stderr]   Downloaded hyper v0.14.23
[INFO] [stderr]   Downloaded reqwest v0.11.13
[INFO] [stderr]   Downloaded serenity v0.11.5
[INFO] [stderr]   Downloaded cxx v1.0.86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+e5b0618d996a6a3941e423fd3e170737b8dbdc92" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b5ea50cb3728e59b668aa0c954410205eab44a73b03edbe4288a180c0bd2f51
[INFO] running `Command { std: "docker" "start" "-a" "2b5ea50cb3728e59b668aa0c954410205eab44a73b03edbe4288a180c0bd2f51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b5ea50cb3728e59b668aa0c954410205eab44a73b03edbe4288a180c0bd2f51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b5ea50cb3728e59b668aa0c954410205eab44a73b03edbe4288a180c0bd2f51", kill_on_drop: false }`
[INFO] [stdout] 2b5ea50cb3728e59b668aa0c954410205eab44a73b03edbe4288a180c0bd2f51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+e5b0618d996a6a3941e423fd3e170737b8dbdc92" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04e73ead7b6a2bb2f53e75c2552bb805ba56e086e4442b0f22d74820b6c36c91
[INFO] running `Command { std: "docker" "start" "-a" "04e73ead7b6a2bb2f53e75c2552bb805ba56e086e4442b0f22d74820b6c36c91", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]    Compiling tokio v1.24.2
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]     Checking futures-sink v0.3.25
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling rustls v0.20.7
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.49/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]    Compiling openssl v0.10.55
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[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" "04e73ead7b6a2bb2f53e75c2552bb805ba56e086e4442b0f22d74820b6c36c91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04e73ead7b6a2bb2f53e75c2552bb805ba56e086e4442b0f22d74820b6c36c91", kill_on_drop: false }`
[INFO] [stdout] 04e73ead7b6a2bb2f53e75c2552bb805ba56e086e4442b0f22d74820b6c36c91