[INFO] cloning repository https://github.com/jflessau/mail-bouncer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jflessau/mail-bouncer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjflessau%2Fmail-bouncer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjflessau%2Fmail-bouncer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ee89e76515d679e45c6496585c089004176855b3
[INFO] checking jflessau/mail-bouncer against try#e071e73523bfcdcab2878dbf652ac8ebb9b9eee4 for pr-144386
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjflessau%2Fmail-bouncer" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jflessau/mail-bouncer
[INFO] finished tweaking git repo https://github.com/jflessau/mail-bouncer
[INFO] tweaked toml for git repo https://github.com/jflessau/mail-bouncer written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jflessau/mail-bouncer on toolchain e071e73523bfcdcab2878dbf652ac8ebb9b9eee4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e071e73523bfcdcab2878dbf652ac8ebb9b9eee4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jflessau/mail-bouncer 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" "+e071e73523bfcdcab2878dbf652ac8ebb9b9eee4" "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 email_address v0.2.4
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.87
[INFO] [stderr]   Downloaded quoted_printable v0.4.6
[INFO] [stderr]   Downloaded security-framework v2.8.1
[INFO] [stderr]   Downloaded matchit v0.7.0
[INFO] [stderr]   Downloaded axum-core v0.3.2
[INFO] [stderr]   Downloaded serde_path_to_error v0.1.9
[INFO] [stderr]   Downloaded hound v3.5.0
[INFO] [stderr]   Downloaded async-trait v0.1.63
[INFO] [stderr]   Downloaded fallible_collections v0.4.6
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.87
[INFO] [stderr]   Downloaded cxx-build v1.0.87
[INFO] [stderr]   Downloaded lettre v0.10.1
[INFO] [stderr]   Downloaded headers v0.3.8
[INFO] [stderr]   Downloaded axum v0.6.4
[INFO] [stderr]   Downloaded hyper v0.14.23
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.16
[INFO] [stderr]   Downloaded lodepng v3.7.2
[INFO] [stderr]   Downloaded openssl v0.10.45
[INFO] [stderr]   Downloaded openssl-sys v0.9.80
[INFO] [stderr]   Downloaded rgb v0.8.34
[INFO] [stderr]   Downloaded email-encoding v0.1.3
[INFO] [stderr]   Downloaded security-framework-sys v2.8.0
[INFO] [stderr]   Downloaded cxx v1.0.87
[INFO] [stderr]   Downloaded captcha v0.0.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e071e73523bfcdcab2878dbf652ac8ebb9b9eee4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 466c3c5941ff6e02ce9aecff4d6a25807fd5c870627dd9db0d6056796c961487
[INFO] running `Command { std: "docker" "start" "-a" "466c3c5941ff6e02ce9aecff4d6a25807fd5c870627dd9db0d6056796c961487", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "466c3c5941ff6e02ce9aecff4d6a25807fd5c870627dd9db0d6056796c961487", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "466c3c5941ff6e02ce9aecff4d6a25807fd5c870627dd9db0d6056796c961487", kill_on_drop: false }`
[INFO] [stdout] 466c3c5941ff6e02ce9aecff4d6a25807fd5c870627dd9db0d6056796c961487
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e071e73523bfcdcab2878dbf652ac8ebb9b9eee4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66f8feb383fde94a5a8ef6a2d3936bc8e697a18773723c5a2ea9856a61865560
[INFO] running `Command { std: "docker" "start" "-a" "66f8feb383fde94a5a8ef6a2d3936bc8e697a18773723c5a2ea9856a61865560", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking bytes v1.3.0
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling parking_lot_core v0.9.6
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling tokio v1.24.2
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling rustversion v1.0.11
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.50/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]    Compiling openssl v0.10.45
[INFO] [stderr]    Compiling async-trait v0.1.63
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking ryu v1.0.12
[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" "66f8feb383fde94a5a8ef6a2d3936bc8e697a18773723c5a2ea9856a61865560", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66f8feb383fde94a5a8ef6a2d3936bc8e697a18773723c5a2ea9856a61865560", kill_on_drop: false }`
[INFO] [stdout] 66f8feb383fde94a5a8ef6a2d3936bc8e697a18773723c5a2ea9856a61865560