[INFO] fetching crate tortuga 0.1.2...
[INFO] testing tortuga-0.1.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate tortuga 0.1.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate tortuga 0.1.2 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tortuga 0.1.2
[INFO] finished tweaking crates.io crate tortuga 0.1.2
[INFO] tweaked toml for crates.io crate tortuga 0.1.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate tortuga 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd8d3aa9129ca9c0c34b5ddb698282cd55d7f7b0a11ea0c8ffdb5fd4ee4aba86
[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" "dd8d3aa9129ca9c0c34b5ddb698282cd55d7f7b0a11ea0c8ffdb5fd4ee4aba86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd8d3aa9129ca9c0c34b5ddb698282cd55d7f7b0a11ea0c8ffdb5fd4ee4aba86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd8d3aa9129ca9c0c34b5ddb698282cd55d7f7b0a11ea0c8ffdb5fd4ee4aba86", kill_on_drop: false }`
[INFO] [stdout] dd8d3aa9129ca9c0c34b5ddb698282cd55d7f7b0a11ea0c8ffdb5fd4ee4aba86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57c83bfba736a06c0b35c2141d94e4427cc6b56e615b15fb54d7f585db7df1ea
[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" "57c83bfba736a06c0b35c2141d94e4427cc6b56e615b15fb54d7f585db7df1ea", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling hashbrown v0.9.0
[INFO] [stderr]    Compiling either v1.6.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.68.0
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling target-lexicon v0.11.0
[INFO] [stderr]    Compiling wasmparser v0.65.0
[INFO] [stderr]    Compiling rayon-core v1.8.0
[INFO] [stderr]    Compiling wasmparser v0.57.0
[INFO] [stderr]    Compiling wasmtime-cache v0.21.0
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.2
[INFO] [stderr]    Compiling rayon v1.4.0
[INFO] [stderr]    Compiling wast v24.0.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling regalloc v0.0.31
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling region v2.2.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling dirs-sys-next v0.1.1
[INFO] [stderr]    Compiling errno v0.2.6
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling directories-next v1.0.3
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling file-per-thread-logger v0.1.4
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling psm v0.1.11
[INFO] [stderr]    Compiling zstd-sys v1.4.17+zstd.1.4.5
[INFO] [stderr]    Compiling raw-cpuid v7.0.3
[INFO] [stderr]    Compiling wasmtime-runtime v0.21.0
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling scroll_derive v0.10.2
[INFO] [stderr]    Compiling wat v1.0.25
[INFO] [stderr]    Compiling thiserror v1.0.22
[INFO] [stderr]    Compiling scroll v0.10.1
[INFO] [stderr]    Compiling cranelift-entity v0.68.0
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.68.0
[INFO] [stderr]    Compiling cranelift-bforest v0.68.0
[INFO] [stderr]    Compiling gimli v0.22.0
[INFO] [stderr]    Compiling object v0.21.1
[INFO] [stderr]    Compiling addr2line v0.13.0
[INFO] [stderr]    Compiling backtrace v0.3.50
[INFO] [stderr]    Compiling zstd-safe v2.0.5+zstd.1.4.5
[INFO] [stderr]    Compiling zstd v0.5.3+zstd.1.4.5
[INFO] [stderr]    Compiling cranelift-codegen v0.68.0
[INFO] [stderr]    Compiling cranelift-frontend v0.68.0
[INFO] [stderr]    Compiling cranelift-native v0.68.0
[INFO] [stderr]    Compiling cranelift-wasm v0.68.0
[INFO] [stderr]    Compiling wasmtime-environ v0.21.0
[INFO] [stderr]    Compiling wasmtime-debug v0.21.0
[INFO] [stderr]    Compiling wasmtime-cranelift v0.21.0
[INFO] [stderr]    Compiling wasmtime-profiling v0.21.0
[INFO] [stderr]    Compiling wasmtime-obj v0.21.0
[INFO] [stderr]    Compiling wasmtime-jit v0.21.0
[INFO] [stderr]    Compiling wasmtime v0.21.0
[INFO] [stderr]    Compiling tortuga v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/queue.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn new() -> Envelope {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `empty`
[INFO] [stdout]   --> src/queue.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn empty(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/queue.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn new(capacity: usize) -> RingBufferQueue {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/system/mod.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn new(capacity: usize) -> System {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 34s
[INFO] running `Command { std: "docker" "inspect" "57c83bfba736a06c0b35c2141d94e4427cc6b56e615b15fb54d7f585db7df1ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57c83bfba736a06c0b35c2141d94e4427cc6b56e615b15fb54d7f585db7df1ea", kill_on_drop: false }`
[INFO] [stdout] 57c83bfba736a06c0b35c2141d94e4427cc6b56e615b15fb54d7f585db7df1ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ba73f35bceeb91e016829e7e307df290fe7789715827bf032256afeb38f0af4
[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" "9ba73f35bceeb91e016829e7e307df290fe7789715827bf032256afeb38f0af4", kill_on_drop: false }`
[INFO] [stderr]    Compiling tortuga v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/queue.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn new() -> Envelope {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `empty`
[INFO] [stdout]   --> src/queue.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn empty(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/queue.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn new(capacity: usize) -> RingBufferQueue {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/system/mod.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn new(capacity: usize) -> System {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/system/mod.rs:239:13
[INFO] [stdout]     |
[INFO] [stdout] 239 |         for i in 1..10 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `empty`
[INFO] [stdout]   --> src/queue.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn empty(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.75s
[INFO] running `Command { std: "docker" "inspect" "9ba73f35bceeb91e016829e7e307df290fe7789715827bf032256afeb38f0af4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ba73f35bceeb91e016829e7e307df290fe7789715827bf032256afeb38f0af4", kill_on_drop: false }`
[INFO] [stdout] 9ba73f35bceeb91e016829e7e307df290fe7789715827bf032256afeb38f0af4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4ff825e258ad04024eca7e5601a34d2319b185781f66fb122b58fe18f21dbc23
[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" "4ff825e258ad04024eca7e5601a34d2319b185781f66fb122b58fe18f21dbc23", 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] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/queue.rs:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn new() -> Envelope {
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `empty`
[INFO] [stderr]   --> src/queue.rs:76:8
[INFO] [stderr]    |
[INFO] [stderr] 76 |     fn empty(&mut self) {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/queue.rs:94:12
[INFO] [stderr]    |
[INFO] [stderr] 94 |     pub fn new(capacity: usize) -> RingBufferQueue {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/system/mod.rs:34:8
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn new(capacity: usize) -> System {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/system/mod.rs:239:13
[INFO] [stderr]     |
[INFO] [stderr] 239 |         for i in 1..10 {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `empty`
[INFO] [stderr]   --> src/queue.rs:76:8
[INFO] [stderr]    |
[INFO] [stderr] 76 |     fn empty(&mut self) {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tortuga-ee370e06730f5815
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test queue::tests::push_pop_multiple_messages ... ok
[INFO] [stdout] test queue::tests::push_when_full ... ok
[INFO] [stdout] test queue::tests::push_single_message ... ok
[INFO] [stdout] test system::tests::partial_register ... ok
[INFO] [stdout] test wasm::wasmtime::tests::allocate_happy_case ... ok
[INFO] [stdout] test wasm::wasmtime::tests::receive_happy_case ... ok
[INFO] [stdout] test wasm::wasmtime::tests::read_and_write_message ... ok
[INFO] [stdout] test system::tests::usability ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tortuga-2c34668890e4fa05
[INFO] [stderr]    Doc-tests tortuga
[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] [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 `Command { std: "docker" "inspect" "4ff825e258ad04024eca7e5601a34d2319b185781f66fb122b58fe18f21dbc23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ff825e258ad04024eca7e5601a34d2319b185781f66fb122b58fe18f21dbc23", kill_on_drop: false }`
[INFO] [stdout] 4ff825e258ad04024eca7e5601a34d2319b185781f66fb122b58fe18f21dbc23