[INFO] cloning repository https://github.com/halvardssm/git-backup
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/halvardssm/git-backup" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhalvardssm%2Fgit-backup", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhalvardssm%2Fgit-backup'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ffee39a83976bd06c5fd1b16fd1e7927b47a2f64
[INFO] checking halvardssm/git-backup against try#d336647335db03a0fc5b24fc5325cd3905c5b8e8 for pr-151146
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhalvardssm%2Fgit-backup" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/halvardssm/git-backup
[INFO] finished tweaking git repo https://github.com/halvardssm/git-backup
[INFO] tweaked toml for git repo https://github.com/halvardssm/git-backup written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/halvardssm/git-backup on toolchain d336647335db03a0fc5b24fc5325cd3905c5b8e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/halvardssm/git-backup 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" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "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 futures v0.3.24
[INFO] [stderr]   Downloaded serde_yaml v0.9.13
[INFO] [stderr]   Downloaded serde_json v1.0.78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b8d814e734fb99c5fd9b2a4b497c3850fcd16b299670f56fd5f0dc4a01bf708
[INFO] running `Command { std: "docker" "start" "-a" "3b8d814e734fb99c5fd9b2a4b497c3850fcd16b299670f56fd5f0dc4a01bf708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b8d814e734fb99c5fd9b2a4b497c3850fcd16b299670f56fd5f0dc4a01bf708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b8d814e734fb99c5fd9b2a4b497c3850fcd16b299670f56fd5f0dc4a01bf708", kill_on_drop: false }`
[INFO] [stdout] 3b8d814e734fb99c5fd9b2a4b497c3850fcd16b299670f56fd5f0dc4a01bf708
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb5fd60e02ec9133de15413470664cd5dd3f1232a0fcee8bf5c2dc7eff6b0238
[INFO] running `Command { std: "docker" "start" "-a" "cb5fd60e02ec9133de15413470664cd5dd3f1232a0fcee8bf5c2dc7eff6b0238", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling libc v0.2.113
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]     Checking futures-sink v0.3.24
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]     Checking futures-io v0.3.24
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]     Checking indexmap v1.9.1
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling serde_json v1.0.78
[INFO] [stderr]    Compiling encoding_rs v0.8.30
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking unsafe-libyaml v0.2.4
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.46/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 termcolor v1.1.2
[INFO] [stderr]     Checking ipnet v2.3.1
[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" "cb5fd60e02ec9133de15413470664cd5dd3f1232a0fcee8bf5c2dc7eff6b0238", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb5fd60e02ec9133de15413470664cd5dd3f1232a0fcee8bf5c2dc7eff6b0238", kill_on_drop: false }`
[INFO] [stdout] cb5fd60e02ec9133de15413470664cd5dd3f1232a0fcee8bf5c2dc7eff6b0238