[INFO] cloning repository https://github.com/whamcloud/thrussh
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/whamcloud/thrussh" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhamcloud%2Fthrussh", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhamcloud%2Fthrussh'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5e5ede756cedd2e4968bb69a56312f8315b2bcc5
[INFO] checking whamcloud/thrussh against try#99a443d6903f71d521237d8acb5a3016b534d17b for pr-83354
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhamcloud%2Fthrussh" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/whamcloud/thrussh on toolchain 99a443d6903f71d521237d8acb5a3016b534d17b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/whamcloud/thrussh
[INFO] finished tweaking git repo https://github.com/whamcloud/thrussh
[INFO] tweaked toml for git repo https://github.com/whamcloud/thrussh written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/whamcloud/thrussh already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded yasna v0.3.2
[INFO] [stderr]   Downloaded thrussh-keys v0.20.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0158f0d61812bdd276ae9409580c49e54b8cbdb83cd5533aa6579b92d9b9d4fa
[INFO] running `Command { std: "docker" "start" "-a" "0158f0d61812bdd276ae9409580c49e54b8cbdb83cd5533aa6579b92d9b9d4fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0158f0d61812bdd276ae9409580c49e54b8cbdb83cd5533aa6579b92d9b9d4fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0158f0d61812bdd276ae9409580c49e54b8cbdb83cd5533aa6579b92d9b9d4fa", kill_on_drop: false }`
[INFO] [stdout] 0158f0d61812bdd276ae9409580c49e54b8cbdb83cd5533aa6579b92d9b9d4fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d34a626b2dd94869bf2251a5fe2ea177f2c6e8fc71e3ce372f74528e04e4d29b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d34a626b2dd94869bf2251a5fe2ea177f2c6e8fc71e3ce372f74528e04e4d29b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.62
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling openssl v0.10.32
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking whoami v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling libsodium-sys v0.2.6
[INFO] [stderr]    Compiling openssl-sys v0.9.60
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.9
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking cryptovec v0.6.1 (/opt/rustwide/workdir/cryptovec)
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking yasna v0.3.2
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking thrussh-config v0.5.0 (/opt/rustwide/workdir/thrussh-config)
[INFO] [stderr]     Checking thrussh-libsodium v0.2.1 (/opt/rustwide/workdir/thrussh-libsodium)
[INFO] [stderr]     Checking thrussh-keys v0.20.3
[INFO] [stderr]     Checking thrussh-keys v0.20.2 (/opt/rustwide/workdir/thrussh-keys)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> thrussh-keys/src/lib.rs:738:13
[INFO] [stdout]     |
[INFO] [stdout] 738 |         let mut rt = tokio::runtime::Runtime::new().unwrap();
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> thrussh-keys/src/lib.rs:782:13
[INFO] [stdout]     |
[INFO] [stdout] 782 |         let mut core = tokio::runtime::Runtime::new().unwrap();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking thrussh v0.32.5 (/opt/rustwide/workdir/thrussh)
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 39s
[INFO] running `Command { std: "docker" "inspect" "d34a626b2dd94869bf2251a5fe2ea177f2c6e8fc71e3ce372f74528e04e4d29b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d34a626b2dd94869bf2251a5fe2ea177f2c6e8fc71e3ce372f74528e04e4d29b", kill_on_drop: false }`
[INFO] [stdout] d34a626b2dd94869bf2251a5fe2ea177f2c6e8fc71e3ce372f74528e04e4d29b