[INFO] fetching crate ctflag_derive 0.1.2...
[INFO] extracting crate ctflag_derive 0.1.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/ctflag_derive/0.1.2
[INFO] extracting crate ctflag_derive 0.1.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/ctflag_derive/0.1.2
[INFO] validating manifest of ctflag_derive-0.1.2 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ctflag_derive-0.1.2 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ctflag_derive-0.1.2
[INFO] finished frobbing ctflag_derive-0.1.2
[INFO] frobbed toml for ctflag_derive-0.1.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/ctflag_derive/0.1.2/Cargo.toml
[INFO] started frobbing ctflag_derive-0.1.2
[INFO] finished frobbing ctflag_derive-0.1.2
[INFO] frobbed toml for ctflag_derive-0.1.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/ctflag_derive/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ctflag_derive-0.1.2 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/ctflag_derive/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 26ecd9530a311751e8aad6283ddaa1d5ef716db172f440542e45e60a329d438a
[INFO] running `"docker" "start" "-a" "26ecd9530a311751e8aad6283ddaa1d5ef716db172f440542e45e60a329d438a"`
[INFO] [stderr]    Compiling ctflag_derive v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `ToTokens` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:513:21
[INFO] [stderr]     |
[INFO] [stderr] 22  | use quote::{quote, quote_spanned, ToTokens};
[INFO] [stderr]     |                                   -------- the item `ToTokens` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 513 |                 use quote::ToTokens;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `"docker" "inspect" "26ecd9530a311751e8aad6283ddaa1d5ef716db172f440542e45e60a329d438a"`
[INFO] running `"docker" "rm" "-f" "26ecd9530a311751e8aad6283ddaa1d5ef716db172f440542e45e60a329d438a"`
[INFO] [stdout] 26ecd9530a311751e8aad6283ddaa1d5ef716db172f440542e45e60a329d438a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/ctflag_derive/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] e4621d6aa99036eb8ee5fbed95231839e989cc3da9b1abe6665d174fe4ff24e4
[INFO] running `"docker" "start" "-a" "e4621d6aa99036eb8ee5fbed95231839e989cc3da9b1abe6665d174fe4ff24e4"`
[INFO] [stderr]    Compiling ctflag_derive v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `ToTokens` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:513:21
[INFO] [stderr]     |
[INFO] [stderr] 22  | use quote::{quote, quote_spanned, ToTokens};
[INFO] [stderr]     |                                   -------- the item `ToTokens` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 513 |                 use quote::ToTokens;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "e4621d6aa99036eb8ee5fbed95231839e989cc3da9b1abe6665d174fe4ff24e4"`
[INFO] running `"docker" "rm" "-f" "e4621d6aa99036eb8ee5fbed95231839e989cc3da9b1abe6665d174fe4ff24e4"`
[INFO] [stdout] e4621d6aa99036eb8ee5fbed95231839e989cc3da9b1abe6665d174fe4ff24e4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/ctflag_derive/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] caa8cee63755350f88569b808ab5ce4394df3919ff85ddff8472c557db72a824
[INFO] running `"docker" "start" "-a" "caa8cee63755350f88569b808ab5ce4394df3919ff85ddff8472c557db72a824"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ctflag_derive-2d95f228dff2d8d1
[INFO] [stderr]    Doc-tests ctflag_derive
[INFO] [stdout] 
[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 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "caa8cee63755350f88569b808ab5ce4394df3919ff85ddff8472c557db72a824"`
[INFO] running `"docker" "rm" "-f" "caa8cee63755350f88569b808ab5ce4394df3919ff85ddff8472c557db72a824"`
[INFO] [stdout] caa8cee63755350f88569b808ab5ce4394df3919ff85ddff8472c557db72a824