[INFO] fetching crate proc-macro2-next 1.0.0-rc4...
[INFO] testing proc-macro2-next-1.0.0-rc4 against 1.49.0 for beta-1.50-1
[INFO] extracting crate proc-macro2-next 1.0.0-rc4 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate proc-macro2-next 1.0.0-rc4 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate proc-macro2-next 1.0.0-rc4
[INFO] finished tweaking crates.io crate proc-macro2-next 1.0.0-rc4
[INFO] tweaked toml for crates.io crate proc-macro2-next 1.0.0-rc4 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 31e7beb410be1773761e4adf202b4b5358ad46310c715c15c032826387da2cad
[INFO] running `Command { std: "docker" "start" "-a" "31e7beb410be1773761e4adf202b4b5358ad46310c715c15c032826387da2cad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31e7beb410be1773761e4adf202b4b5358ad46310c715c15c032826387da2cad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31e7beb410be1773761e4adf202b4b5358ad46310c715c15c032826387da2cad", kill_on_drop: false }`
[INFO] [stdout] 31e7beb410be1773761e4adf202b4b5358ad46310c715c15c032826387da2cad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09ea0facf66d4d8ec0ea1ad0cf908b4a7602fadae5d4ed8b066737dd6281837b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "09ea0facf66d4d8ec0ea1ad0cf908b4a7602fadae5d4ed8b066737dd6281837b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2-next v1.0.0-rc4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.15s
[INFO] running `Command { std: "docker" "inspect" "09ea0facf66d4d8ec0ea1ad0cf908b4a7602fadae5d4ed8b066737dd6281837b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09ea0facf66d4d8ec0ea1ad0cf908b4a7602fadae5d4ed8b066737dd6281837b", kill_on_drop: false }`
[INFO] [stdout] 09ea0facf66d4d8ec0ea1ad0cf908b4a7602fadae5d4ed8b066737dd6281837b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2d58abb1d8c3f7074b20679f8b03ccc02875c1de84b433eebbe1d7e7e2e3453
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e2d58abb1d8c3f7074b20679f8b03ccc02875c1de84b433eebbe1d7e7e2e3453", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2-next v1.0.0-rc4
[INFO] [stderr]    Compiling quote-next v1.0.0-rc3
[INFO] [stderr]    Compiling proc-macro2-next v1.0.0-rc4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.17s
[INFO] running `Command { std: "docker" "inspect" "e2d58abb1d8c3f7074b20679f8b03ccc02875c1de84b433eebbe1d7e7e2e3453", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2d58abb1d8c3f7074b20679f8b03ccc02875c1de84b433eebbe1d7e7e2e3453", kill_on_drop: false }`
[INFO] [stdout] e2d58abb1d8c3f7074b20679f8b03ccc02875c1de84b433eebbe1d7e7e2e3453
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5f27e64806aef8c1795ec80a944856259c593037d7bc5fefd6d3bf5f5c7b66f1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5f27e64806aef8c1795ec80a944856259c593037d7bc5fefd6d3bf5f5c7b66f1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/proc_macro2-d30d06945ec8d7af
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/marker-013798eb43a051a8
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test Delimiter ... ok
[INFO] [stdout] test Group ... ok
[INFO] [stdout] test Punct ... ok
[INFO] [stdout] test Spacing ... ok
[INFO] [stdout] test Span ... ok
[INFO] [stdout] test LexError ... ok
[INFO] [stdout] test Ident ... ok
[INFO] [stdout] test TokenStream ... ok
[INFO] [stdout] test TokenTree ... ok
[INFO] [stdout] test Literal ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test-48fc7e37ea73628c
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test fail ... ok
[INFO] [stdout] test idents ... ok
[INFO] [stdout] test literal_suffix ... ok
[INFO] [stdout] test literal_character ... ok
[INFO] [stdout] test raw_identifier ... ok
[INFO] [stdout] test literal_float ... ok
[INFO] [stdout] test literal_string ... ok
[INFO] [stdout] test no_panic ... ok
[INFO] [stdout] test op_before_comment ... ok
[INFO] [stdout] test tricky_doc_comment ... ok
[INFO] [stdout] test test_debug_tokenstream ... ok
[INFO] [stdout] test test_debug_ident ... ok
[INFO] [stdout] test roundtrip ... ok
[INFO] [stdout] test default_tokenstream_is_empty ... ok
[INFO] [stdout] test ident_number ... ok
[INFO] [stdout] test ident_empty ... ok
[INFO] [stdout] test ident_invalid ... ok
[INFO] [stdout] test lifetime_empty ... ok
[INFO] [stdout] test lifetime_invalid ... ok
[INFO] [stdout] test raw_ident_empty ... ok
[INFO] [stdout] test lifetime_number ... ok
[INFO] [stdout] test raw_ident_invalid ... ok
[INFO] [stdout] test raw_ident_number ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests proc_macro2
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - Ident (line 783) ... FAILED
[INFO] [stdout] test src/lib.rs - Ident (line 802) ... ok
[INFO] [stdout] test src/lib.rs - (line 36) ... ok
[INFO] [stdout] test src/lib.rs - Ident (line 771) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Ident (line 783) stdout ----
[INFO] [stdout] error[E0277]: the trait bound `proc_macro2::Ident: ToTokens` is not satisfied
[INFO] [stdout]   --> src/lib.rs:791:20
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let expanded = quote! { let #ident = 10; };
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `ToTokens` is not implemented for `proc_macro2::Ident`
[INFO] [stdout]    |
[INFO] [stdout]    = note: required by `to_tokens`
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `proc_macro2::Ident: ToTokens` is not satisfied
[INFO] [stdout]   --> src/lib.rs:795:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let expanded = quote! { let #temp_ident = 10; };
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `ToTokens` is not implemented for `proc_macro2::Ident`
[INFO] [stdout]    |
[INFO] [stdout]    = note: required by `to_tokens`
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Ident (line 783)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "5f27e64806aef8c1795ec80a944856259c593037d7bc5fefd6d3bf5f5c7b66f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f27e64806aef8c1795ec80a944856259c593037d7bc5fefd6d3bf5f5c7b66f1", kill_on_drop: false }`
[INFO] [stdout] 5f27e64806aef8c1795ec80a944856259c593037d7bc5fefd6d3bf5f5c7b66f1