[INFO] cloning repository https://github.com/Noe-Favier/filedrop-v2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Noe-Favier/filedrop-v2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNoe-Favier%2Ffiledrop-v2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNoe-Favier%2Ffiledrop-v2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 51cce6dc850bcb4ca104f285b7f9614793f7d7a3
[INFO] testing Noe-Favier/filedrop-v2 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNoe-Favier%2Ffiledrop-v2" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Noe-Favier/filedrop-v2
[INFO] finished tweaking git repo https://github.com/Noe-Favier/filedrop-v2
[INFO] tweaked toml for git repo https://github.com/Noe-Favier/filedrop-v2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Noe-Favier/filedrop-v2 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Noe-Favier/filedrop-v2 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itoa v1.0.3
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[INFO] [stderr]   Downloaded libc v0.2.134
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d9175dc69fedaf4e1e73c863d405c5699acf78f05a8446f6892481fd10a85781
[INFO] running `Command { std: "docker" "start" "-a" "d9175dc69fedaf4e1e73c863d405c5699acf78f05a8446f6892481fd10a85781", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9175dc69fedaf4e1e73c863d405c5699acf78f05a8446f6892481fd10a85781", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9175dc69fedaf4e1e73c863d405c5699acf78f05a8446f6892481fd10a85781", kill_on_drop: false }`
[INFO] [stdout] d9175dc69fedaf4e1e73c863d405c5699acf78f05a8446f6892481fd10a85781
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b56b5a9127adad18d9546c3a3995a451a68fd36e73c40960a45bac881d6310a
[INFO] running `Command { std: "docker" "start" "-a" "2b56b5a9127adad18d9546c3a3995a451a68fd36e73c40960a45bac881d6310a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling once_cell v1.15.0
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling itoa v1.0.3
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling cpufeatures v0.2.5
[INFO] [stderr]    Compiling uncased v0.9.7
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]    Compiling bytes v1.2.1
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.9.1
[INFO] [stderr]    Compiling yansi v0.5.1
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling tracing-core v0.1.29
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling futures-sink v0.3.24
[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] 
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]    Compiling num_threads v0.1.6
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling tracing v0.1.36
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling cookie v0.16.1
[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" "2b56b5a9127adad18d9546c3a3995a451a68fd36e73c40960a45bac881d6310a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b56b5a9127adad18d9546c3a3995a451a68fd36e73c40960a45bac881d6310a", kill_on_drop: false }`
[INFO] [stdout] 2b56b5a9127adad18d9546c3a3995a451a68fd36e73c40960a45bac881d6310a