[INFO] fetching crate expjobserver 0.9.2...
[INFO] testing expjobserver-0.9.2 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate expjobserver 0.9.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate expjobserver 0.9.2 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-1/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" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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] 61e9cf1b47bfd32906e709a9d960b8eb97e0d54cb2835c32c13dd7573c77a021
[INFO] running `Command { std: "docker" "start" "-a" "61e9cf1b47bfd32906e709a9d960b8eb97e0d54cb2835c32c13dd7573c77a021", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61e9cf1b47bfd32906e709a9d960b8eb97e0d54cb2835c32c13dd7573c77a021", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61e9cf1b47bfd32906e709a9d960b8eb97e0d54cb2835c32c13dd7573c77a021", kill_on_drop: false }`
[INFO] [stdout] 61e9cf1b47bfd32906e709a9d960b8eb97e0d54cb2835c32c13dd7573c77a021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d7671758fc486db430ac32907028234866db4b7945866a4bb369283bc48bf34
[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" "0d7671758fc486db430ac32907028234866db4b7945866a4bb369283bc48bf34", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[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 cfg-if v0.1.10
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling multimap v0.8.2
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]    Compiling dtoa v0.4.6
[INFO] [stderr]    Compiling rustc-demangle v0.1.17
[INFO] [stderr]    Compiling object v0.21.1
[INFO] [stderr]    Compiling antidote v1.0.0
[INFO] [stderr]    Compiling log-mdc v0.1.0
[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 indexmap v1.6.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling humantime v1.3.0
[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 petgraph v0.5.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling termios v0.3.3
[INFO] [stderr]    Compiling terminal_size v0.1.13
[INFO] [stderr]    Compiling flate2 v1.0.18
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling regex v1.4.1
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling ordered-float v1.1.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling backtrace v0.3.53
[INFO] [stderr]    Compiling console v0.12.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[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 prettytable-rs v0.8.0
[INFO] [stderr]    Compiling expjobserver v0.9.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling log4rs v0.8.3
[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 31s
[INFO] running `Command { std: "docker" "inspect" "0d7671758fc486db430ac32907028234866db4b7945866a4bb369283bc48bf34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d7671758fc486db430ac32907028234866db4b7945866a4bb369283bc48bf34", kill_on_drop: false }`
[INFO] [stdout] 0d7671758fc486db430ac32907028234866db4b7945866a4bb369283bc48bf34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 998866cde14fcc036418ceb637eedce2c40dd4560a20fe160bdd8f2a3ae70b99
[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" "998866cde14fcc036418ceb637eedce2c40dd4560a20fe160bdd8f2a3ae70b99", 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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.45s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "998866cde14fcc036418ceb637eedce2c40dd4560a20fe160bdd8f2a3ae70b99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "998866cde14fcc036418ceb637eedce2c40dd4560a20fe160bdd8f2a3ae70b99", kill_on_drop: false }`
[INFO] [stdout] 998866cde14fcc036418ceb637eedce2c40dd4560a20fe160bdd8f2a3ae70b99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ae9a854ee77be16184e49b29c6a19f586b791a0625cf746246b0129e8086a4d1
[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" "ae9a854ee77be16184e49b29c6a19f586b791a0625cf746246b0129e8086a4d1", 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 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/expjobserver-4e6d2e4efbaa1130)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/expjobserver-061a351a175fc34d)
[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-66e6e571d727d299)
[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]    Doc-tests expjobserver
[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] [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" "ae9a854ee77be16184e49b29c6a19f586b791a0625cf746246b0129e8086a4d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae9a854ee77be16184e49b29c6a19f586b791a0625cf746246b0129e8086a4d1", kill_on_drop: false }`
[INFO] [stdout] ae9a854ee77be16184e49b29c6a19f586b791a0625cf746246b0129e8086a4d1