[INFO] crate ec-client 0.1.0 is already in cache
[INFO] extracting crate ec-client 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/ec-client/0.1.0
[INFO] extracting crate ec-client 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ec-client/0.1.0
[INFO] validating manifest of ec-client-0.1.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ec-client-0.1.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ec-client-0.1.0
[INFO] finished frobbing ec-client-0.1.0
[INFO] frobbed toml for ec-client-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/ec-client/0.1.0/Cargo.toml
[INFO] started frobbing ec-client-0.1.0
[INFO] finished frobbing ec-client-0.1.0
[INFO] frobbed toml for ec-client-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ec-client/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ec-client-0.1.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ec-client/0.1.0:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] b1a39b53e899b0ef124706bf191c9d6349f7d0189210861a1970ced10928ddc2
[INFO] running `"docker" "start" "-a" "b1a39b53e899b0ef124706bf191c9d6349f7d0189210861a1970ced10928ddc2"`
[INFO] [stderr]    Compiling half v1.3.0
[INFO] [stderr]    Compiling serde_bytes v0.11.2
[INFO] [stderr]    Compiling serde_cbor v0.9.0
[INFO] [stderr]    Compiling ec-client v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `from_slice`
[INFO] [stderr]  --> src/lib.rs:7:18
[INFO] [stderr]   |
[INFO] [stderr] 7 | use serde_cbor::{from_slice, to_vec};
[INFO] [stderr]   |                  ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `resp`
[INFO] [stderr]   --> src/lib.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let resp = client
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_resp`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.43s
[INFO] running `"docker" "inspect" "b1a39b53e899b0ef124706bf191c9d6349f7d0189210861a1970ced10928ddc2"`
[INFO] running `"docker" "rm" "-f" "b1a39b53e899b0ef124706bf191c9d6349f7d0189210861a1970ced10928ddc2"`
[INFO] [stdout] b1a39b53e899b0ef124706bf191c9d6349f7d0189210861a1970ced10928ddc2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ec-client/0.1.0:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] bb94d26da1814e6ee04005d9bb51dd13851e3c521cc0cbefad4d2f7d1a4ec07b
[INFO] running `"docker" "start" "-a" "bb94d26da1814e6ee04005d9bb51dd13851e3c521cc0cbefad4d2f7d1a4ec07b"`
[INFO] [stderr]    Compiling ec-client v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `from_slice`
[INFO] [stderr]  --> src/lib.rs:7:18
[INFO] [stderr]   |
[INFO] [stderr] 7 | use serde_cbor::{from_slice, to_vec};
[INFO] [stderr]   |                  ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `resp`
[INFO] [stderr]   --> src/lib.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let resp = client
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_resp`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `"docker" "inspect" "bb94d26da1814e6ee04005d9bb51dd13851e3c521cc0cbefad4d2f7d1a4ec07b"`
[INFO] running `"docker" "rm" "-f" "bb94d26da1814e6ee04005d9bb51dd13851e3c521cc0cbefad4d2f7d1a4ec07b"`
[INFO] [stdout] bb94d26da1814e6ee04005d9bb51dd13851e3c521cc0cbefad4d2f7d1a4ec07b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ec-client/0.1.0:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 8dfda6a51836ea93c3e9ece985d19d8f075a572d4b7cd7f3891514f3ff61ac9a
[INFO] running `"docker" "start" "-a" "8dfda6a51836ea93c3e9ece985d19d8f075a572d4b7cd7f3891514f3ff61ac9a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ec_client-dc830317b532c7fc
[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] [stderr]    Doc-tests ec-client
[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" "8dfda6a51836ea93c3e9ece985d19d8f075a572d4b7cd7f3891514f3ff61ac9a"`
[INFO] running `"docker" "rm" "-f" "8dfda6a51836ea93c3e9ece985d19d8f075a572d4b7cd7f3891514f3ff61ac9a"`
[INFO] [stdout] 8dfda6a51836ea93c3e9ece985d19d8f075a572d4b7cd7f3891514f3ff61ac9a