[INFO] cloning repository https://github.com/wismer/rs_torrent
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wismer/rs_torrent" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwismer%2Frs_torrent", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwismer%2Frs_torrent'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b5209285c8f76a2d44e128239d0b79fb81d93081
[INFO] testing wismer/rs_torrent against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwismer%2Frs_torrent" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wismer/rs_torrent on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wismer/rs_torrent
[INFO] finished tweaking git repo https://github.com/wismer/rs_torrent
[INFO] tweaked toml for git repo https://github.com/wismer/rs_torrent written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/wismer/rs_torrent already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.5
[INFO] [stderr]   Downloaded bytes v0.4.9
[INFO] [stderr]   Downloaded tokio-tcp v0.1.1
[INFO] [stderr]   Downloaded tokio-timer v0.2.5
[INFO] [stderr]   Downloaded itoa v0.4.2
[INFO] [stderr]   Downloaded byteorder v1.2.4
[INFO] [stderr]   Downloaded httparse v1.3.2
[INFO] [stderr]   Downloaded tokio-fs v0.1.3
[INFO] [stderr]   Downloaded futures v0.1.23
[INFO] [stderr]   Downloaded log v0.4.4
[INFO] [stderr]   Downloaded tokio-reactor v0.1.3
[INFO] [stderr]   Downloaded hyper v0.12.8
[INFO] [stderr]   Downloaded bip_bencode v0.4.4
[INFO] [stderr]   Downloaded string v0.1.1
[INFO] [stderr]   Downloaded tokio-executor v0.1.3
[INFO] [stderr]   Downloaded http v0.1.10
[INFO] [stderr]   Downloaded mio v0.6.15
[INFO] [stderr]   Downloaded h2 v0.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "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] e6f399880d42713468527fe25300bba99e5a62e45d67730a7b349b49e8abca41
[INFO] running `Command { std: "docker" "start" "-a" "e6f399880d42713468527fe25300bba99e5a62e45d67730a7b349b49e8abca41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6f399880d42713468527fe25300bba99e5a62e45d67730a7b349b49e8abca41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6f399880d42713468527fe25300bba99e5a62e45d67730a7b349b49e8abca41", kill_on_drop: false }`
[INFO] [stdout] e6f399880d42713468527fe25300bba99e5a62e45d67730a7b349b49e8abca41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", 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] c44b934eac801085c13cf07aaf86c4c7a2b24f6e621d2cf739722b7d61cd2959
[INFO] running `Command { std: "docker" "start" "-a" "c44b934eac801085c13cf07aaf86c4c7a2b24f6e621d2cf739722b7d61cd2959", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures v0.1.23
[INFO] [stderr]    Compiling slab v0.4.1
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.8
[INFO] [stderr]    Compiling httparse v1.3.2
[INFO] [stderr]    Compiling try-lock v0.2.2
[INFO] [stderr]    Compiling indexmap v1.0.1
[INFO] [stderr]    Compiling string v0.1.1
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling log v0.4.4
[INFO] [stderr]    Compiling crossbeam-utils v0.3.2
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling bytes v0.4.9
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling mio v0.6.15
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.3
[INFO] [stderr]    Compiling http v0.1.10
[INFO] [stderr]    Compiling crossbeam-deque v0.3.1
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling bip_bencode v0.4.4
[INFO] [stderr]    Compiling tokio-io v0.1.7
[INFO] [stderr]    Compiling tokio-executor v0.1.3
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling want v0.0.6
[INFO] [stderr]    Compiling tokio-threadpool v0.1.5
[INFO] [stderr]    Compiling tokio-timer v0.2.5
[INFO] [stderr]    Compiling tokio-reactor v0.1.3
[INFO] [stderr]    Compiling tokio-codec v0.1.0
[INFO] [stderr]    Compiling tokio-fs v0.1.3
[INFO] [stderr]    Compiling tokio-tcp v0.1.1
[INFO] [stderr]    Compiling tokio-udp v0.1.1
[INFO] [stderr]    Compiling h2 v0.1.12
[INFO] [stderr]    Compiling tokio v0.1.7
[INFO] [stderr]    Compiling hyper v0.12.8
[INFO] [stderr]    Compiling rs_bittorrent v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `torrent`
[INFO] [stdout]   --> src/main.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let torrent = Torrent::new(&torrent_content);
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_torrent`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `announce_list`
[INFO] [stdout]   --> src/torrent/torrent.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let announce_list = dict.lookup(b"announce-list").unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_announce_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tracker_query_params`
[INFO] [stdout]   --> src/torrent/torrent.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn tracker_query_params(&self) -> Option<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     torrent_file.read_to_end(&mut contents);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.60s
[INFO] running `Command { std: "docker" "inspect" "c44b934eac801085c13cf07aaf86c4c7a2b24f6e621d2cf739722b7d61cd2959", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c44b934eac801085c13cf07aaf86c4c7a2b24f6e621d2cf739722b7d61cd2959", kill_on_drop: false }`
[INFO] [stdout] c44b934eac801085c13cf07aaf86c4c7a2b24f6e621d2cf739722b7d61cd2959
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7deba3caaafa7eef6e3bea18ca3c7461855cb2910b424081ae3e5cc1ffb77191
[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" "7deba3caaafa7eef6e3bea18ca3c7461855cb2910b424081ae3e5cc1ffb77191", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rs_bittorrent v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `torrent`
[INFO] [stdout]   --> src/main.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let torrent = Torrent::new(&torrent_content);
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_torrent`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `announce_list`
[INFO] [stdout]   --> src/torrent/torrent.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let announce_list = dict.lookup(b"announce-list").unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_announce_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tracker_query_params`
[INFO] [stdout]   --> src/torrent/torrent.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn tracker_query_params(&self) -> Option<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     torrent_file.read_to_end(&mut contents);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "7deba3caaafa7eef6e3bea18ca3c7461855cb2910b424081ae3e5cc1ffb77191", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7deba3caaafa7eef6e3bea18ca3c7461855cb2910b424081ae3e5cc1ffb77191", kill_on_drop: false }`
[INFO] [stdout] 7deba3caaafa7eef6e3bea18ca3c7461855cb2910b424081ae3e5cc1ffb77191
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9beb2fe53a705699dacb6860a5b414138ba6cfffce76010ba0720b91b0b75cc7
[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" "9beb2fe53a705699dacb6860a5b414138ba6cfffce76010ba0720b91b0b75cc7", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `torrent`
[INFO] [stdout] 
[INFO] [stderr]   --> src/main.rs:36:9
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 36 |     let torrent = Torrent::new(&torrent_content);
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_torrent`
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `announce_list`
[INFO] [stderr]   --> src/torrent/torrent.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |         let announce_list = dict.lookup(b"announce-list").unwrap();
[INFO] [stderr]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_announce_list`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `tracker_query_params`
[INFO] [stderr]   --> src/torrent/torrent.rs:61:8
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn tracker_query_params(&self) -> Option<String> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     torrent_file.read_to_end(&mut contents);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rs_bittorrent-7323463a531b50af
[INFO] running `Command { std: "docker" "inspect" "9beb2fe53a705699dacb6860a5b414138ba6cfffce76010ba0720b91b0b75cc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9beb2fe53a705699dacb6860a5b414138ba6cfffce76010ba0720b91b0b75cc7", kill_on_drop: false }`
[INFO] [stdout] 9beb2fe53a705699dacb6860a5b414138ba6cfffce76010ba0720b91b0b75cc7