[INFO] fetching crate blockchain-cycle-finder 0.1.0...
[INFO] checking blockchain-cycle-finder-0.1.0 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate blockchain-cycle-finder 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate blockchain-cycle-finder 0.1.0 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blockchain-cycle-finder 0.1.0
[INFO] finished tweaking crates.io crate blockchain-cycle-finder 0.1.0
[INFO] tweaked toml for crates.io crate blockchain-cycle-finder 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate blockchain-cycle-finder 0.1.0 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.86
[INFO] [stderr]   Downloaded ffi-opaque v2.0.1
[INFO] [stderr]   Downloaded plotters-svg v0.3.3
[INFO] [stderr]   Downloaded itoa v1.0.4
[INFO] [stderr]   Downloaded unicode-ident v1.0.4
[INFO] [stderr]   Downloaded array_tool v1.0.3
[INFO] [stderr]   Downloaded bech32 v0.8.1
[INFO] [stderr]   Downloaded hash_hasher v2.0.3
[INFO] [stderr]   Downloaded db-key v0.0.5
[INFO] [stderr]   Downloaded cmake v0.1.48
[INFO] [stderr]   Downloaded bitcoin_hashes v0.10.0
[INFO] [stderr]   Downloaded bumpalo v3.11.0
[INFO] [stderr]   Downloaded secp256k1-sys v0.4.2
[INFO] [stderr]   Downloaded bitcoin v0.27.1
[INFO] [stderr]   Downloaded libc v0.2.134
[INFO] [stderr]   Downloaded zstd-sys v2.0.1+zstd.1.5.2
[INFO] [stderr]   Downloaded rayon v1.5.3
[INFO] [stderr]   Downloaded regex-syntax v0.6.27
[INFO] [stderr]   Downloaded leveldb-sys v2.0.9
[INFO] [stderr]   Downloaded regex v1.6.0
[INFO] [stderr]   Downloaded rocksdb v0.19.0
[INFO] [stderr]   Downloaded syn v1.0.101
[INFO] [stderr]   Downloaded plotters v0.3.4
[INFO] [stderr]   Downloaded secp256k1 v0.20.3
[INFO] [stderr]   Downloaded bitcoin-explorer v1.2.17
[INFO] [stderr]   Downloaded libz-sys v1.1.8
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.12
[INFO] [stderr]   Downloaded rayon-core v1.9.3
[INFO] [stderr]   Downloaded half v1.8.2
[INFO] [stderr]   Downloaded serde v1.0.145
[INFO] [stderr]   Downloaded once_cell v1.15.0
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.11
[INFO] [stderr]   Downloaded leveldb v0.8.6
[INFO] [stderr]   Downloaded crossbeam-queue v0.3.6
[INFO] [stderr]   Downloaded crossbeam v0.8.2
[INFO] [stderr]   Downloaded par-iter-sync v0.1.10
[INFO] [stderr]   Downloaded plotters-backend v0.3.4
[INFO] [stderr]   Downloaded either v1.8.0
[INFO] [stderr]   Downloaded crossbeam-deque v0.8.2
[INFO] [stderr]   Downloaded libloading v0.7.3
[INFO] [stderr]   Downloaded proc-macro2 v1.0.46
[INFO] [stderr]   Downloaded serde_derive v1.0.145
[INFO] [stderr]   Downloaded librocksdb-sys v0.8.0+7.4.4
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6bf92ea13ff75dda06aa1c02e9ba2a4be42b23d5020a1c062ddf2f599dcb2712
[INFO] running `Command { std: "docker" "start" "-a" "6bf92ea13ff75dda06aa1c02e9ba2a4be42b23d5020a1c062ddf2f599dcb2712", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bf92ea13ff75dda06aa1c02e9ba2a4be42b23d5020a1c062ddf2f599dcb2712", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bf92ea13ff75dda06aa1c02e9ba2a4be42b23d5020a1c062ddf2f599dcb2712", kill_on_drop: false }`
[INFO] [stdout] 6bf92ea13ff75dda06aa1c02e9ba2a4be42b23d5020a1c062ddf2f599dcb2712
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25ac3e547715d7fae4467a878e0644450c79ed35ea5e1c07e0444a77caffbcee
[INFO] running `Command { std: "docker" "start" "-a" "25ac3e547715d7fae4467a878e0644450c79ed35ea5e1c07e0444a77caffbcee", 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 serde_derive v1.0.145
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling bindgen v0.60.1
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling clang-sys v1.4.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.6
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_json v1.0.86
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/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]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking ffi-opaque v2.0.1
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "25ac3e547715d7fae4467a878e0644450c79ed35ea5e1c07e0444a77caffbcee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25ac3e547715d7fae4467a878e0644450c79ed35ea5e1c07e0444a77caffbcee", kill_on_drop: false }`
[INFO] [stdout] 25ac3e547715d7fae4467a878e0644450c79ed35ea5e1c07e0444a77caffbcee
[INFO] checking blockchain-cycle-finder-0.1.0 against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] extracting crate blockchain-cycle-finder 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate blockchain-cycle-finder 0.1.0 on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blockchain-cycle-finder 0.1.0
[INFO] finished tweaking crates.io crate blockchain-cycle-finder 0.1.0
[INFO] tweaked toml for crates.io crate blockchain-cycle-finder 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate blockchain-cycle-finder 0.1.0 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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1ae885933f8f719c3fa0e662f4ea3404952df6ca804cb989be42765cd1829c2
[INFO] running `Command { std: "docker" "start" "-a" "c1ae885933f8f719c3fa0e662f4ea3404952df6ca804cb989be42765cd1829c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1ae885933f8f719c3fa0e662f4ea3404952df6ca804cb989be42765cd1829c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1ae885933f8f719c3fa0e662f4ea3404952df6ca804cb989be42765cd1829c2", kill_on_drop: false }`
[INFO] [stdout] c1ae885933f8f719c3fa0e662f4ea3404952df6ca804cb989be42765cd1829c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2db00fd298ed0d1010cd2e65fe3bae5c746baf9612afdbee4cca7b49fc4ed32
[INFO] running `Command { std: "docker" "start" "-a" "b2db00fd298ed0d1010cd2e65fe3bae5c746baf9612afdbee4cca7b49fc4ed32", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling bindgen v0.60.1
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.6
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling serde_json v1.0.86
[INFO] [stderr]    Compiling clang-sys v1.4.0
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking ffi-opaque v2.0.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/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]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b2db00fd298ed0d1010cd2e65fe3bae5c746baf9612afdbee4cca7b49fc4ed32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2db00fd298ed0d1010cd2e65fe3bae5c746baf9612afdbee4cca7b49fc4ed32", kill_on_drop: false }`
[INFO] [stdout] b2db00fd298ed0d1010cd2e65fe3bae5c746baf9612afdbee4cca7b49fc4ed32
