[INFO] cloning repository https://github.com/maguro-alternative/hello_cargo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maguro-alternative/hello_cargo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaguro-alternative%2Fhello_cargo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaguro-alternative%2Fhello_cargo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 29173fcdfa0ae960680834b81ff1ff7fa12066c7
[INFO] checking maguro-alternative/hello_cargo/29173fcdfa0ae960680834b81ff1ff7fa12066c7 against master#9b81629631b382fd49ee3a20ac47797b1467e52d for pr-146095
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaguro-alternative%2Fhello_cargo" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/maguro-alternative/hello_cargo
[INFO] finished tweaking git repo https://github.com/maguro-alternative/hello_cargo
[INFO] tweaked toml for git repo https://github.com/maguro-alternative/hello_cargo written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/maguro-alternative/hello_cargo on toolchain 9b81629631b382fd49ee3a20ac47797b1467e52d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b81629631b382fd49ee3a20ac47797b1467e52d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/maguro-alternative/hello_cargo 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" "+9b81629631b382fd49ee3a20ac47797b1467e52d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pin-project-internal v0.4.30
[INFO] [stderr]   Downloaded enum-as-inner v0.3.4
[INFO] [stderr]   Downloaded pin-project v0.4.30
[INFO] [stderr]   Downloaded futures-macro v0.3.24
[INFO] [stderr]   Downloaded futures v0.3.24
[INFO] [stderr]   Downloaded actix-http v2.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+9b81629631b382fd49ee3a20ac47797b1467e52d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5f72bf14ef98f72446e3189da3c0cf3aced8a0e2cb9d60b103c2c8a814c7e67
[INFO] running `Command { std: "docker" "start" "-a" "a5f72bf14ef98f72446e3189da3c0cf3aced8a0e2cb9d60b103c2c8a814c7e67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5f72bf14ef98f72446e3189da3c0cf3aced8a0e2cb9d60b103c2c8a814c7e67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5f72bf14ef98f72446e3189da3c0cf3aced8a0e2cb9d60b103c2c8a814c7e67", kill_on_drop: false }`
[INFO] [stdout] a5f72bf14ef98f72446e3189da3c0cf3aced8a0e2cb9d60b103c2c8a814c7e67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+9b81629631b382fd49ee3a20ac47797b1467e52d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 067b9a479bb2d4c47a51e2aa82eb97932574db8723042b099d82fb2702cd5052
[INFO] running `Command { std: "docker" "start" "-a" "067b9a479bb2d4c47a51e2aa82eb97932574db8723042b099d82fb2702cd5052", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]     Checking futures-sink v0.3.24
[INFO] [stderr]     Checking slab v0.4.7
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]     Checking futures-io v0.3.24
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]    Compiling pin-project-internal v0.4.30
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling generic-array v0.14.6
[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]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling async-trait v0.1.57
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]    Compiling const_fn v0.4.9
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]     Checking http v0.2.8
[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" "067b9a479bb2d4c47a51e2aa82eb97932574db8723042b099d82fb2702cd5052", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "067b9a479bb2d4c47a51e2aa82eb97932574db8723042b099d82fb2702cd5052", kill_on_drop: false }`
[INFO] [stdout] 067b9a479bb2d4c47a51e2aa82eb97932574db8723042b099d82fb2702cd5052