[INFO] fetching crate expjobserver 0.9.2...
[INFO] testing expjobserver-0.9.2 against 1.59.0 for beta-1.60-1
[INFO] extracting crate expjobserver 0.9.2 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate expjobserver 0.9.2 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate expjobserver 0.9.2
[INFO] finished tweaking crates.io crate expjobserver 0.9.2
[INFO] tweaked toml for crates.io crate expjobserver 0.9.2 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate expjobserver 0.9.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 486910452da62474178a0bdd412ac1119536c5b1d2c63c60c83e79382ae3aa18
[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" "486910452da62474178a0bdd412ac1119536c5b1d2c63c60c83e79382ae3aa18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "486910452da62474178a0bdd412ac1119536c5b1d2c63c60c83e79382ae3aa18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "486910452da62474178a0bdd412ac1119536c5b1d2c63c60c83e79382ae3aa18", kill_on_drop: false }`
[INFO] [stdout] 486910452da62474178a0bdd412ac1119536c5b1d2c63c60c83e79382ae3aa18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "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] b53a62a5f5c0a9c4e114b6b5f15656dbf1be3e5640d14eb3b130c255c14bcc16
[INFO] running `Command { std: "docker" "start" "-a" "b53a62a5f5c0a9c4e114b6b5f15656dbf1be3e5640d14eb3b130c255c14bcc16", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling gimli v0.22.0
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling multimap v0.8.2
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]    Compiling rustc-demangle v0.1.17
[INFO] [stderr]    Compiling object v0.21.1
[INFO] [stderr]    Compiling log-mdc v0.1.0
[INFO] [stderr]    Compiling antidote v1.0.0
[INFO] [stderr]    Compiling encode_unicode v0.3.6
[INFO] [stderr]    Compiling arc-swap v0.3.11
[INFO] [stderr]    Compiling fs_extra v1.2.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling regex v1.4.1
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling termios v0.3.3
[INFO] [stderr]    Compiling terminal_size v0.1.13
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling flate2 v1.0.18
[INFO] [stderr]    Compiling ordered-float v1.1.0
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling console v0.12.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling addr2line v0.13.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling backtrace v0.3.53
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling serde-value v0.5.3
[INFO] [stderr]    Compiling serde_yaml v0.8.13
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling log4rs v0.8.3
[INFO] [stderr]    Compiling expjobserver v0.9.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling prettytable-rs v0.8.0
[INFO] [stdout] warning: field is never read: `cp_results`
[INFO] [stdout]    --> src/bin/client/main.rs:793:5
[INFO] [stdout]     |
[INFO] [stdout] 793 |     cp_results: Option<String>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `variables`
[INFO] [stdout]    --> src/bin/client/main.rs:795:5
[INFO] [stdout]     |
[INFO] [stdout] 795 |     variables: HashMap<String, Vec<String>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `child`
[INFO] [stdout]    --> src/bin/server/main.rs:233:5
[INFO] [stdout]     |
[INFO] [stdout] 233 |     child: Command,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stdout`
[INFO] [stdout]    --> src/bin/server/main.rs:239:5
[INFO] [stdout]     |
[INFO] [stdout] 239 |     stdout: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stderr`
[INFO] [stdout]    --> src/bin/server/main.rs:242:5
[INFO] [stdout]     |
[INFO] [stdout] 242 |     stderr: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 13s
[INFO] running `Command { std: "docker" "inspect" "b53a62a5f5c0a9c4e114b6b5f15656dbf1be3e5640d14eb3b130c255c14bcc16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b53a62a5f5c0a9c4e114b6b5f15656dbf1be3e5640d14eb3b130c255c14bcc16", kill_on_drop: false }`
[INFO] [stdout] b53a62a5f5c0a9c4e114b6b5f15656dbf1be3e5640d14eb3b130c255c14bcc16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c8e3a08e15d124de11e4bf8fa9f930ffcf63d717886df75fc8ebd10dc6bc6f0
[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" "6c8e3a08e15d124de11e4bf8fa9f930ffcf63d717886df75fc8ebd10dc6bc6f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling expjobserver v0.9.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `cp_results`
[INFO] [stdout]    --> src/bin/client/main.rs:793:5
[INFO] [stdout]     |
[INFO] [stdout] 793 |     cp_results: Option<String>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `variables`
[INFO] [stdout]    --> src/bin/client/main.rs:795:5
[INFO] [stdout]     |
[INFO] [stdout] 795 |     variables: HashMap<String, Vec<String>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `child`
[INFO] [stdout]    --> src/bin/server/main.rs:233:5
[INFO] [stdout]     |
[INFO] [stdout] 233 |     child: Command,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stdout`
[INFO] [stdout]    --> src/bin/server/main.rs:239:5
[INFO] [stdout]     |
[INFO] [stdout] 239 |     stdout: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stderr`
[INFO] [stdout]    --> src/bin/server/main.rs:242:5
[INFO] [stdout]     |
[INFO] [stdout] 242 |     stderr: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.90s
[INFO] running `Command { std: "docker" "inspect" "6c8e3a08e15d124de11e4bf8fa9f930ffcf63d717886df75fc8ebd10dc6bc6f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c8e3a08e15d124de11e4bf8fa9f930ffcf63d717886df75fc8ebd10dc6bc6f0", kill_on_drop: false }`
[INFO] [stdout] 6c8e3a08e15d124de11e4bf8fa9f930ffcf63d717886df75fc8ebd10dc6bc6f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a5c823d018b5c813389c8e588afd38c57fa693d46be3e187279400729c62864f
[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" "a5c823d018b5c813389c8e588afd38c57fa693d46be3e187279400729c62864f", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `cp_results`
[INFO] [stderr]    --> src/bin/client/main.rs:793:5
[INFO] [stderr]     |
[INFO] [stderr] 793 |     cp_results: Option<String>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `variables`
[INFO] [stderr]    --> src/bin/client/main.rs:795:5
[INFO] [stderr]     |
[INFO] [stderr] 795 |     variables: HashMap<String, Vec<String>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `child`
[INFO] [stderr]    --> src/bin/server/main.rs:233:5
[INFO] [stderr]     |
[INFO] [stderr] 233 |     child: Command,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `stdout`
[INFO] [stderr]    --> src/bin/server/main.rs:239:5
[INFO] [stderr]     |
[INFO] [stderr] 239 |     stdout: String,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `stderr`
[INFO] [stderr]    --> src/bin/server/main.rs:242:5
[INFO] [stderr]     |
[INFO] [stderr] 242 |     stderr: String,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `expjobserver` (bin "j" test) generated 2 warnings
[INFO] [stderr] warning: `expjobserver` (bin "expjobserver" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/expjobserver-cad5fbb12622fdd6)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/expjobserver-e74a98294259328a)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/j-2c78ee759a13f58a)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests expjobserver
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a5c823d018b5c813389c8e588afd38c57fa693d46be3e187279400729c62864f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5c823d018b5c813389c8e588afd38c57fa693d46be3e187279400729c62864f", kill_on_drop: false }`
[INFO] [stdout] a5c823d018b5c813389c8e588afd38c57fa693d46be3e187279400729c62864f