[INFO] crate slip21 0.1.0 is already in cache
[INFO] extracting crate slip21 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/slip21/0.1.0
[INFO] extracting crate slip21 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/slip21/0.1.0
[INFO] validating manifest of slip21-0.1.0 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 slip21-0.1.0 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 slip21-0.1.0
[INFO] finished frobbing slip21-0.1.0
[INFO] frobbed toml for slip21-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/slip21/0.1.0/Cargo.toml
[INFO] started frobbing slip21-0.1.0
[INFO] finished frobbing slip21-0.1.0
[INFO] frobbed toml for slip21-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/slip21/0.1.0/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing slip21-0.1.0 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-4/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/slip21/0.1.0:/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] 33437f698b85d4a8b9caf18049d259b202bcd544c473c1ed6e9256639378d975
[INFO] running `"docker" "start" "-a" "33437f698b85d4a8b9caf18049d259b202bcd544c473c1ed6e9256639378d975"`
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling bitcoin_hashes v0.6.0
[INFO] [stderr]    Compiling slip21 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `fmt`
[INFO] [stderr]  --> src/lib.rs:7:16
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::{cmp, fmt, hash};
[INFO] [stderr]   |                ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.22s
[INFO] running `"docker" "inspect" "33437f698b85d4a8b9caf18049d259b202bcd544c473c1ed6e9256639378d975"`
[INFO] running `"docker" "rm" "-f" "33437f698b85d4a8b9caf18049d259b202bcd544c473c1ed6e9256639378d975"`
[INFO] [stdout] 33437f698b85d4a8b9caf18049d259b202bcd544c473c1ed6e9256639378d975
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/slip21/0.1.0:/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] 67680493682d10e995c469d0d3ae718d222e441501094d740ec0cfdcd55d3e95
[INFO] running `"docker" "start" "-a" "67680493682d10e995c469d0d3ae718d222e441501094d740ec0cfdcd55d3e95"`
[INFO] [stderr]    Compiling slip21 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `fmt`
[INFO] [stderr]  --> src/lib.rs:7:16
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::{cmp, fmt, hash};
[INFO] [stderr]   |                ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "67680493682d10e995c469d0d3ae718d222e441501094d740ec0cfdcd55d3e95"`
[INFO] running `"docker" "rm" "-f" "67680493682d10e995c469d0d3ae718d222e441501094d740ec0cfdcd55d3e95"`
[INFO] [stdout] 67680493682d10e995c469d0d3ae718d222e441501094d740ec0cfdcd55d3e95
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/slip21/0.1.0:/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] 7ace06d726b33ba01a92e885209c66e8cc88fe855d25507f330e2e514d6f1ac7
[INFO] running `"docker" "start" "-a" "7ace06d726b33ba01a92e885209c66e8cc88fe855d25507f330e2e514d6f1ac7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/slip21-2d4eb8c125c8cc9a
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::slip_example ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slip21
[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" "7ace06d726b33ba01a92e885209c66e8cc88fe855d25507f330e2e514d6f1ac7"`
[INFO] running `"docker" "rm" "-f" "7ace06d726b33ba01a92e885209c66e8cc88fe855d25507f330e2e514d6f1ac7"`
[INFO] [stdout] 7ace06d726b33ba01a92e885209c66e8cc88fe855d25507f330e2e514d6f1ac7