[INFO] fetching crate smartpool 0.3.2...
[INFO] testing smartpool-0.3.2 against 1.47.0 for beta-1.48-1
[INFO] extracting crate smartpool 0.3.2 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate smartpool 0.3.2 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate smartpool 0.3.2
[INFO] finished tweaking crates.io crate smartpool 0.3.2
[INFO] tweaked toml for crates.io crate smartpool 0.3.2 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] f3aa9deed3411d0cb66e8907100f538946aef2c515d0839b063b1cfa9ebb4da6
[INFO] running `Command { std: "docker" "start" "-a" "f3aa9deed3411d0cb66e8907100f538946aef2c515d0839b063b1cfa9ebb4da6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3aa9deed3411d0cb66e8907100f538946aef2c515d0839b063b1cfa9ebb4da6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3aa9deed3411d0cb66e8907100f538946aef2c515d0839b063b1cfa9ebb4da6", kill_on_drop: false }`
[INFO] [stdout] f3aa9deed3411d0cb66e8907100f538946aef2c515d0839b063b1cfa9ebb4da6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] 4b696be1a87179b52a746a97038a5574ea8d74542f2960ca3b32f4c3f674be19
[INFO] running `Command { std: "docker" "start" "-a" "4b696be1a87179b52a746a97038a5574ea8d74542f2960ca3b32f4c3f674be19", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling through v0.1.0
[INFO] [stderr]    Compiling monitor v0.1.0
[INFO] [stderr]    Compiling atomic v0.4.6
[INFO] [stderr]    Compiling atom v0.3.6
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling smallqueue v0.1.0
[INFO] [stderr]    Compiling atomicmonitor v0.1.2
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling stopwatch v0.0.7
[INFO] [stderr]    Compiling smartpool v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/channel/sdf.rs:36:24
[INFO] [stdout]    |
[INFO] [stdout] 36 |             Some((key, mut queue)) => {
[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]   --> src/channel/sdf.rs:64:18
[INFO] [stdout]    |
[INFO] [stdout] 64 |             Some(mut queue) => {
[INFO] [stdout]    |                  ----^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.54s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4b696be1a87179b52a746a97038a5574ea8d74542f2960ca3b32f4c3f674be19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b696be1a87179b52a746a97038a5574ea8d74542f2960ca3b32f4c3f674be19", kill_on_drop: false }`
[INFO] [stdout] 4b696be1a87179b52a746a97038a5574ea8d74542f2960ca3b32f4c3f674be19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aee44195c51c0c3e2523f82f8b92b9316280939956a7e25bb00f608e93821c8c
[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" "aee44195c51c0c3e2523f82f8b92b9316280939956a7e25bb00f608e93821c8c", 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 rand_core v0.3.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/channel/sdf.rs:36:24
[INFO] [stdout]    |
[INFO] [stdout] 36 |             Some((key, mut queue)) => {
[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]   --> src/channel/sdf.rs:64:18
[INFO] [stdout]    |
[INFO] [stdout] 64 |             Some(mut queue) => {
[INFO] [stdout]    |                  ----^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling pretty_env_logger v0.2.5
[INFO] [stderr]    Compiling smartpool v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/test.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::sync::{Once, ONCE_INIT};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/test.rs:18:25
[INFO] [stdout]    |
[INFO] [stdout] 18 | static INIT_LOG: Once = ONCE_INIT;
[INFO] [stdout]    |                         ^^^^^^^^^ help: replace the use of the deprecated constant: `Once::new()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/channel/sdf.rs:36:24
[INFO] [stdout]    |
[INFO] [stdout] 36 |             Some((key, mut queue)) => {
[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]   --> src/channel/sdf.rs:64:18
[INFO] [stdout]    |
[INFO] [stdout] 64 |             Some(mut queue) => {
[INFO] [stdout]    |                  ----^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.11s
[INFO] running `Command { std: "docker" "inspect" "aee44195c51c0c3e2523f82f8b92b9316280939956a7e25bb00f608e93821c8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aee44195c51c0c3e2523f82f8b92b9316280939956a7e25bb00f608e93821c8c", kill_on_drop: false }`
[INFO] [stdout] aee44195c51c0c3e2523f82f8b92b9316280939956a7e25bb00f608e93821c8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", 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] 76d9c11c07f8c5cc81682f45b5d631d31f52e3921f188f5dba18917e908c74ba
[INFO] running `Command { std: "docker" "start" "-a" "76d9c11c07f8c5cc81682f45b5d631d31f52e3921f188f5dba18917e908c74ba", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/channel/sdf.rs:36:24
[INFO] [stderr]    |
[INFO] [stderr] 36 |             Some((key, mut queue)) => {
[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] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/channel/sdf.rs:64:18
[INFO] [stderr]    |
[INFO] [stderr] 64 |             Some(mut queue) => {
[INFO] [stderr]    |                  ----^^^^^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stderr]  --> src/test.rs:8:23
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::sync::{Once, ONCE_INIT};
[INFO] [stderr]   |                       ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stderr]   --> src/test.rs:18:25
[INFO] [stderr]    |
[INFO] [stderr] 18 | static INIT_LOG: Once = ONCE_INIT;
[INFO] [stderr]    |                         ^^^^^^^^^ help: replace the use of the deprecated constant: `Once::new()`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/channel/sdf.rs:36:24
[INFO] [stderr]    |
[INFO] [stderr] 36 |             Some((key, mut queue)) => {
[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] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/channel/sdf.rs:64:18
[INFO] [stderr]    |
[INFO] [stderr] 64 |             Some(mut queue) => {
[INFO] [stderr]    |                  ----^^^^^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.26s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/smartpool-4564f3355da2ae3f
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test test::fail_on_too_many_bits ... ok
[INFO] [stdout] test test::simple_threadpool_test ... ok
[INFO] [stdout] test test::simple_threadpool_test_round_robin ... ok
[INFO] [stdout] test test::push_future_test ... ok
[INFO] [stdout] test test::timer_and_yield_test ... ok
[INFO] [stdout] test test::scoped_op_test ... ok
[INFO] [stdout] test test::close_test ... ok
[INFO] [stdout] test test::test_slicing ... ok
[INFO] [stdout] test test::multi_level_test ... ok
[INFO] [stdout] test channel::test::fifo_test ... ok
[INFO] [stdout] test channel::test::sdf_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests smartpool
[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" "76d9c11c07f8c5cc81682f45b5d631d31f52e3921f188f5dba18917e908c74ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76d9c11c07f8c5cc81682f45b5d631d31f52e3921f188f5dba18917e908c74ba", kill_on_drop: false }`
[INFO] [stdout] 76d9c11c07f8c5cc81682f45b5d631d31f52e3921f188f5dba18917e908c74ba
