[INFO] crate snmp 0.2.2 is already in cache
[INFO] extracting crate snmp 0.2.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/snmp/0.2.2
[INFO] extracting crate snmp 0.2.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/snmp/0.2.2
[INFO] validating manifest of snmp-0.2.2 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 snmp-0.2.2 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 snmp-0.2.2
[INFO] finished frobbing snmp-0.2.2
[INFO] frobbed toml for snmp-0.2.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/snmp/0.2.2/Cargo.toml
[INFO] started frobbing snmp-0.2.2
[INFO] finished frobbing snmp-0.2.2
[INFO] frobbed toml for snmp-0.2.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/snmp/0.2.2/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 snmp-0.2.2 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-7/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/snmp/0.2.2:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 958a9c3cbaa23c8f04f5d7c469e38a246eb6231425c4e967131b05136de5d247
[INFO] running `"docker" "start" "-a" "958a9c3cbaa23c8f04f5d7c469e38a246eb6231425c4e967131b05136de5d247"`
[INFO] [stderr]    Compiling snmp v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:348:21
[INFO] [stderr]     |
[INFO] [stderr] 348 |                 let mut wbuf = self.available();
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `"docker" "inspect" "958a9c3cbaa23c8f04f5d7c469e38a246eb6231425c4e967131b05136de5d247"`
[INFO] running `"docker" "rm" "-f" "958a9c3cbaa23c8f04f5d7c469e38a246eb6231425c4e967131b05136de5d247"`
[INFO] [stdout] 958a9c3cbaa23c8f04f5d7c469e38a246eb6231425c4e967131b05136de5d247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/snmp/0.2.2:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] b631ed71243a418d8524ac18487026cadff97287a5055e9b111e8dfae1552c0d
[INFO] running `"docker" "start" "-a" "b631ed71243a418d8524ac18487026cadff97287a5055e9b111e8dfae1552c0d"`
[INFO] [stderr]    Compiling snmp v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:348:21
[INFO] [stderr]     |
[INFO] [stderr] 348 |                 let mut wbuf = self.available();
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `"docker" "inspect" "b631ed71243a418d8524ac18487026cadff97287a5055e9b111e8dfae1552c0d"`
[INFO] running `"docker" "rm" "-f" "b631ed71243a418d8524ac18487026cadff97287a5055e9b111e8dfae1552c0d"`
[INFO] [stdout] b631ed71243a418d8524ac18487026cadff97287a5055e9b111e8dfae1552c0d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/snmp/0.2.2:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] f929a90d0dbf1bdeeccb664b915ce109796e9333331ffe78a35f18f4fa5ce8c8
[INFO] running `"docker" "start" "-a" "f929a90d0dbf1bdeeccb664b915ce109796e9333331ffe78a35f18f4fa5ce8c8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/snmp-6b6875c7df2861c9
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::asn_read_byte ... ok
[INFO] [stdout] test tests::asn_parse_getnext_pdu ... ok
[INFO] [stdout] test tests::build_getnext_pdu ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests snmp
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs -  (line 56) ... ok
[INFO] [stdout] test src/lib.rs -  (line 75) ... ok
[INFO] [stdout] test src/lib.rs -  (line 40) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f929a90d0dbf1bdeeccb664b915ce109796e9333331ffe78a35f18f4fa5ce8c8"`
[INFO] running `"docker" "rm" "-f" "f929a90d0dbf1bdeeccb664b915ce109796e9333331ffe78a35f18f4fa5ce8c8"`
[INFO] [stdout] f929a90d0dbf1bdeeccb664b915ce109796e9333331ffe78a35f18f4fa5ce8c8