[INFO] updating cached repository hellopatrick/synacor.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hellopatrick/synacor.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hellopatrick/synacor.rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/hellopatrick/synacor.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/hellopatrick/synacor.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hellopatrick/synacor.rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hellopatrick/synacor.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hellopatrick/synacor.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5134684ebfde6d8aaf952fc347e194a954b10c60
[INFO] sha for GitHub repo hellopatrick/synacor.rs: 5134684ebfde6d8aaf952fc347e194a954b10c60
[INFO] validating manifest of hellopatrick/synacor.rs 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 hellopatrick/synacor.rs 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 hellopatrick/synacor.rs
[INFO] finished frobbing hellopatrick/synacor.rs
[INFO] frobbed toml for hellopatrick/synacor.rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/hellopatrick/synacor.rs/Cargo.toml
[INFO] started frobbing hellopatrick/synacor.rs
[INFO] finished frobbing hellopatrick/synacor.rs
[INFO] frobbed toml for hellopatrick/synacor.rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hellopatrick/synacor.rs/Cargo.toml
[INFO] crate hellopatrick/synacor.rs already has a lockfile, it will not be regenerated
[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 hellopatrick/synacor.rs against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hellopatrick/synacor.rs:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 15922110fb50b72e8094cf105aa5240a0ebb666b0445168c8b7a076256bd43dc
[INFO] running `"docker" "start" "-a" "15922110fb50b72e8094cf105aa5240a0ebb666b0445168c8b7a076256bd43dc"`
[INFO] [stderr]    Compiling serde-big-array v0.1.4
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling bincode v1.1.2
[INFO] [stderr]    Compiling synacor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vm.rs:39:28
[INFO] [stderr]    |
[INFO] [stderr] 39 |   pub fn load(reader: &mut Read) -> Self {
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/main.rs:9:29
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn main() -> Result<(), Box<Error>> {
[INFO] [stderr]   |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.02s
[INFO] running `"docker" "inspect" "15922110fb50b72e8094cf105aa5240a0ebb666b0445168c8b7a076256bd43dc"`
[INFO] running `"docker" "rm" "-f" "15922110fb50b72e8094cf105aa5240a0ebb666b0445168c8b7a076256bd43dc"`
[INFO] [stdout] 15922110fb50b72e8094cf105aa5240a0ebb666b0445168c8b7a076256bd43dc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hellopatrick/synacor.rs:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 19e14532355b4927b661cc7b97d4d8e927985e700b4a756c14ab6552b490fa60
[INFO] running `"docker" "start" "-a" "19e14532355b4927b661cc7b97d4d8e927985e700b4a756c14ab6552b490fa60"`
[INFO] [stderr]    Compiling synacor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vm.rs:39:28
[INFO] [stderr]    |
[INFO] [stderr] 39 |   pub fn load(reader: &mut Read) -> Self {
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/main.rs:9:29
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn main() -> Result<(), Box<Error>> {
[INFO] [stderr]   |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "19e14532355b4927b661cc7b97d4d8e927985e700b4a756c14ab6552b490fa60"`
[INFO] running `"docker" "rm" "-f" "19e14532355b4927b661cc7b97d4d8e927985e700b4a756c14ab6552b490fa60"`
[INFO] [stdout] 19e14532355b4927b661cc7b97d4d8e927985e700b4a756c14ab6552b490fa60
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hellopatrick/synacor.rs:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 98cbf75ab4302c96ae19e946a4bef2396f8c7c4402d346808741da47027725f5
[INFO] running `"docker" "start" "-a" "98cbf75ab4302c96ae19e946a4bef2396f8c7c4402d346808741da47027725f5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/synacor-be229b07832e8b77
[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" "98cbf75ab4302c96ae19e946a4bef2396f8c7c4402d346808741da47027725f5"`
[INFO] running `"docker" "rm" "-f" "98cbf75ab4302c96ae19e946a4bef2396f8c7c4402d346808741da47027725f5"`
[INFO] [stdout] 98cbf75ab4302c96ae19e946a4bef2396f8c7c4402d346808741da47027725f5