[INFO] fetching crate serde_bson 0.0.1...
[INFO] testing serde_bson-0.0.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate serde_bson 0.0.1 into /workspace/builds/worker-102/source
[INFO] validating manifest of crates.io crate serde_bson 0.0.1 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_bson 0.0.1
[INFO] finished tweaking crates.io crate serde_bson 0.0.1
[INFO] tweaked toml for crates.io crate serde_bson 0.0.1 written to /workspace/builds/worker-102/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bson v1.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a46ba1c4be9c6b3f97ab2fade1779f221d8b7ad97694a2da936383513bd1e1e4
[INFO] running `Command { std: "docker" "start" "-a" "a46ba1c4be9c6b3f97ab2fade1779f221d8b7ad97694a2da936383513bd1e1e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a46ba1c4be9c6b3f97ab2fade1779f221d8b7ad97694a2da936383513bd1e1e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a46ba1c4be9c6b3f97ab2fade1779f221d8b7ad97694a2da936383513bd1e1e4", kill_on_drop: false }`
[INFO] [stdout] a46ba1c4be9c6b3f97ab2fade1779f221d8b7ad97694a2da936383513bd1e1e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/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" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ba9f9f85d0c04384d8b9365be7c93686558894ce19ab54a31bd1b663f02c1bc
[INFO] running `Command { std: "docker" "start" "-a" "3ba9f9f85d0c04384d8b9365be7c93686558894ce19ab54a31bd1b663f02c1bc", 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 take_mut v0.2.2
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling serde_bson v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.16s
[INFO] running `Command { std: "docker" "inspect" "3ba9f9f85d0c04384d8b9365be7c93686558894ce19ab54a31bd1b663f02c1bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ba9f9f85d0c04384d8b9365be7c93686558894ce19ab54a31bd1b663f02c1bc", kill_on_drop: false }`
[INFO] [stdout] 3ba9f9f85d0c04384d8b9365be7c93686558894ce19ab54a31bd1b663f02c1bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/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" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2f756037517b951c1b124a913186f3c9e56c2e4d827adfff5ce7f857401b48d
[INFO] running `Command { std: "docker" "start" "-a" "f2f756037517b951c1b124a913186f3c9e56c2e4d827adfff5ce7f857401b48d", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling bson v1.2.4
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling serde_bson v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         to_string(&test, &mut ours);
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 12.71s
[INFO] running `Command { std: "docker" "inspect" "f2f756037517b951c1b124a913186f3c9e56c2e4d827adfff5ce7f857401b48d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2f756037517b951c1b124a913186f3c9e56c2e4d827adfff5ce7f857401b48d", kill_on_drop: false }`
[INFO] [stdout] f2f756037517b951c1b124a913186f3c9e56c2e4d827adfff5ce7f857401b48d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/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" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f393231c22b70538902669087cbafe10b5e29dea7d2d9b960198d9399ec702fd
[INFO] running `Command { std: "docker" "start" "-a" "f393231c22b70538902669087cbafe10b5e29dea7d2d9b960198d9399ec702fd", kill_on_drop: false }`
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/lib.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |         to_string(&test, &mut ours);
[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: `serde_bson` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/serde_bson-167179a1ce7e5fe1)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::test_basic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde_bson
[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" "f393231c22b70538902669087cbafe10b5e29dea7d2d9b960198d9399ec702fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f393231c22b70538902669087cbafe10b5e29dea7d2d9b960198d9399ec702fd", kill_on_drop: false }`
[INFO] [stdout] f393231c22b70538902669087cbafe10b5e29dea7d2d9b960198d9399ec702fd