[INFO] cloning repository https://github.com/m1cahg/TBA-discordbot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/m1cahg/TBA-discordbot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm1cahg%2FTBA-discordbot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm1cahg%2FTBA-discordbot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 490262cf6cb951191c718d5de520ce30c8655d1e
[INFO] checking m1cahg/TBA-discordbot against try#9228062c11d321a3ea08123f57e47533a3c88b00 for pr-154781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm1cahg%2FTBA-discordbot" "/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/m1cahg/TBA-discordbot
[INFO] finished tweaking git repo https://github.com/m1cahg/TBA-discordbot
[INFO] tweaked toml for git repo https://github.com/m1cahg/TBA-discordbot written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/m1cahg/TBA-discordbot on toolchain 9228062c11d321a3ea08123f57e47533a3c88b00
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9228062c11d321a3ea08123f57e47533a3c88b00" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/m1cahg/TBA-discordbot 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" "+9228062c11d321a3ea08123f57e47533a3c88b00" "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 typemap_rev v0.1.5
[INFO] [stderr]   Downloaded dashmap v5.4.0
[INFO] [stderr]   Downloaded rustls-pemfile v1.0.1
[INFO] [stderr]   Downloaded cc v1.0.76
[INFO] [stderr]   Downloaded command_attr v0.4.1
[INFO] [stderr]   Downloaded serenity v0.11.5
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+9228062c11d321a3ea08123f57e47533a3c88b00" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c13620b850ac0cd093e6e42314bfb1e7d870f6a64dbbefcad5fa54c9f58fa746
[INFO] running `Command { std: "docker" "start" "-a" "c13620b850ac0cd093e6e42314bfb1e7d870f6a64dbbefcad5fa54c9f58fa746", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c13620b850ac0cd093e6e42314bfb1e7d870f6a64dbbefcad5fa54c9f58fa746", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c13620b850ac0cd093e6e42314bfb1e7d870f6a64dbbefcad5fa54c9f58fa746", kill_on_drop: false }`
[INFO] [stdout] c13620b850ac0cd093e6e42314bfb1e7d870f6a64dbbefcad5fa54c9f58fa746
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+9228062c11d321a3ea08123f57e47533a3c88b00" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5966aafbd97437ed48ec2c5061112b946fb241d6c7ccf016819777871e4e1ad
[INFO] running `Command { std: "docker" "start" "-a" "a5966aafbd97437ed48ec2c5061112b946fb241d6c7ccf016819777871e4e1ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling cc v1.0.76
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling rustls v0.20.7
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[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 unicode-bidi v0.3.8
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.4
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]    Compiling serde_json v1.0.87
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a5966aafbd97437ed48ec2c5061112b946fb241d6c7ccf016819777871e4e1ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5966aafbd97437ed48ec2c5061112b946fb241d6c7ccf016819777871e4e1ad", kill_on_drop: false }`
[INFO] [stdout] a5966aafbd97437ed48ec2c5061112b946fb241d6c7ccf016819777871e4e1ad