[INFO] cloning repository https://github.com/0x1042/learnrust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0x1042/learnrust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0x1042%2Flearnrust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0x1042%2Flearnrust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eac6df71845e1fb6ac9fdc48c2757de1300b5f61
[INFO] checking 0x1042/learnrust against master#9b81629631b382fd49ee3a20ac47797b1467e52d for pr-146095
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0x1042%2Flearnrust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/0x1042/learnrust
[INFO] finished tweaking git repo https://github.com/0x1042/learnrust
[INFO] tweaked toml for git repo https://github.com/0x1042/learnrust written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/0x1042/learnrust 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/0x1042/learnrust 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 clap_derive v4.0.13
[INFO] [stderr]   Downloaded dotenvy v0.15.5
[INFO] [stderr]   Downloaded http-range-header v0.3.0
[INFO] [stderr]   Downloaded axum-core v0.2.8
[INFO] [stderr]   Downloaded sync_wrapper v0.1.1
[INFO] [stderr]   Downloaded serde_derive v1.0.145
[INFO] [stderr]   Downloaded tokio-stream v0.1.11
[INFO] [stderr]   Downloaded futures-executor v0.3.24
[INFO] [stderr]   Downloaded matchit v0.5.0
[INFO] [stderr]   Downloaded redis v0.21.6
[INFO] [stderr]   Downloaded h2 v0.3.14
[INFO] [stderr]   Downloaded clap v4.0.15
[INFO] [stderr]   Downloaded serde_json v1.0.86
[INFO] [stderr]   Downloaded tower-http v0.3.4
[INFO] [stderr]   Downloaded hyper v0.14.20
[INFO] [stderr]   Downloaded libsqlite3-sys v0.25.1
[INFO] [stderr]   Downloaded axum v0.5.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 44cf0d2efa6ef451c80c5ff7fb2b3f2fd72b086e5eb820b367874e2458c94324
[INFO] running `Command { std: "docker" "start" "-a" "44cf0d2efa6ef451c80c5ff7fb2b3f2fd72b086e5eb820b367874e2458c94324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44cf0d2efa6ef451c80c5ff7fb2b3f2fd72b086e5eb820b367874e2458c94324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44cf0d2efa6ef451c80c5ff7fb2b3f2fd72b086e5eb820b367874e2458c94324", kill_on_drop: false }`
[INFO] [stdout] 44cf0d2efa6ef451c80c5ff7fb2b3f2fd72b086e5eb820b367874e2458c94324
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 50e31221084774e63111965908c85c3f81e78d88e38effce737e34cbd6e1d780
[INFO] running `Command { std: "docker" "start" "-a" "50e31221084774e63111965908c85c3f81e78d88e38effce737e34cbd6e1d780", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]     Checking futures-sink v0.3.24
[INFO] [stderr]     Checking parking_lot_core v0.9.3
[INFO] [stderr]     Checking slab v0.4.7
[INFO] [stderr]     Checking futures-io v0.3.24
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling openssl-sys v0.9.76
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]    Compiling anyhow v1.0.65
[INFO] [stderr]    Compiling serde_json v1.0.86
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking parking_lot v0.12.1
[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 thread_local v1.1.4
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling async-trait v0.1.57
[INFO] [stderr]    Compiling libsqlite3-sys v0.25.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking hdrhistogram v7.5.2
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking sha1_smol v1.0.0
[INFO] [stderr]     Checking http-range-header v0.3.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking tracing-log v0.1.3
[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" "50e31221084774e63111965908c85c3f81e78d88e38effce737e34cbd6e1d780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50e31221084774e63111965908c85c3f81e78d88e38effce737e34cbd6e1d780", kill_on_drop: false }`
[INFO] [stdout] 50e31221084774e63111965908c85c3f81e78d88e38effce737e34cbd6e1d780
