[INFO] fetching crate corda-rpc 0.2.0...
[INFO] checking corda-rpc-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate corda-rpc 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate corda-rpc 0.2.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate corda-rpc 0.2.0
[INFO] finished tweaking crates.io crate corda-rpc 0.2.0
[INFO] tweaked toml for crates.io crate corda-rpc 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate corda-rpc 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded structopt v0.3.21
[INFO] [stderr]   Downloaded futures-channel v0.3.15
[INFO] [stderr]   Downloaded futures-io v0.3.15
[INFO] [stderr]   Downloaded futures-executor v0.3.15
[INFO] [stderr]   Downloaded futures-macro v0.3.15
[INFO] [stderr]   Downloaded futures-util v0.3.15
[INFO] [stderr]   Downloaded tokio-util v0.6.7
[INFO] [stderr]   Downloaded slab v0.4.3
[INFO] [stderr]   Downloaded libc v0.2.97
[INFO] [stderr]   Downloaded futures v0.3.15
[INFO] [stderr]   Downloaded futures-task v0.3.15
[INFO] [stderr]   Downloaded thiserror-impl v1.0.25
[INFO] [stderr]   Downloaded thiserror v1.0.25
[INFO] [stderr]   Downloaded futures-sink v0.3.15
[INFO] [stderr]   Downloaded oasis-amqp v0.3.0
[INFO] [stderr]   Downloaded oasis-amqp-macros v0.2.0
[INFO] [stderr]   Downloaded serde_bytes v0.11.5
[INFO] [stderr]   Downloaded structopt-derive v0.4.14
[INFO] [stderr]   Downloaded tokio-macros v1.2.0
[INFO] [stderr]   Downloaded tokio v1.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 074bd85c2b94e441eb892d4ec2a777e4db875872f1ead209bcd7355ab87b21ac
[INFO] running `Command { std: "docker" "start" "-a" "074bd85c2b94e441eb892d4ec2a777e4db875872f1ead209bcd7355ab87b21ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "074bd85c2b94e441eb892d4ec2a777e4db875872f1ead209bcd7355ab87b21ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "074bd85c2b94e441eb892d4ec2a777e4db875872f1ead209bcd7355ab87b21ac", kill_on_drop: false }`
[INFO] [stdout] 074bd85c2b94e441eb892d4ec2a777e4db875872f1ead209bcd7355ab87b21ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebc8543bd9691de03af82e5fc372e2b2441b8d0e7840c4f77d3ef3a5764deced
[INFO] running `Command { std: "docker" "start" "-a" "ebc8543bd9691de03af82e5fc372e2b2441b8d0e7840c4f77d3ef3a5764deced", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling tokio v1.7.0
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling oasis-amqp-macros v0.2.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking oasis-amqp v0.3.0
[INFO] [stderr]     Checking corda-rpc v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> src/client.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::{self, Rng};
[INFO] [stdout]   |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> src/client.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::{self, Rng};
[INFO] [stdout]   |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.93s
[INFO] running `Command { std: "docker" "inspect" "ebc8543bd9691de03af82e5fc372e2b2441b8d0e7840c4f77d3ef3a5764deced", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebc8543bd9691de03af82e5fc372e2b2441b8d0e7840c4f77d3ef3a5764deced", kill_on_drop: false }`
[INFO] [stdout] ebc8543bd9691de03af82e5fc372e2b2441b8d0e7840c4f77d3ef3a5764deced
[INFO] checking corda-rpc-0.2.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate corda-rpc 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate corda-rpc 0.2.0 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate corda-rpc 0.2.0
[INFO] finished tweaking crates.io crate corda-rpc 0.2.0
[INFO] tweaked toml for crates.io crate corda-rpc 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate corda-rpc 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7956d946db6bc142186462e9ffdc569efe4452ee9c418cbe2b5afc090fd04f59
[INFO] running `Command { std: "docker" "start" "-a" "7956d946db6bc142186462e9ffdc569efe4452ee9c418cbe2b5afc090fd04f59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7956d946db6bc142186462e9ffdc569efe4452ee9c418cbe2b5afc090fd04f59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7956d946db6bc142186462e9ffdc569efe4452ee9c418cbe2b5afc090fd04f59", kill_on_drop: false }`
[INFO] [stdout] 7956d946db6bc142186462e9ffdc569efe4452ee9c418cbe2b5afc090fd04f59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68092c850c974da3341433b8d7afdbf436da525b6405954f1cd1974b5833cb6a
[INFO] running `Command { std: "docker" "start" "-a" "68092c850c974da3341433b8d7afdbf436da525b6405954f1cd1974b5833cb6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling tokio v1.7.0
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling oasis-amqp-macros v0.2.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking oasis-amqp v0.3.0
[INFO] [stderr]     Checking corda-rpc v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> src/client.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::{self, Rng};
[INFO] [stdout]   |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> src/client.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::{self, Rng};
[INFO] [stdout]   |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.72s
[INFO] running `Command { std: "docker" "inspect" "68092c850c974da3341433b8d7afdbf436da525b6405954f1cd1974b5833cb6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68092c850c974da3341433b8d7afdbf436da525b6405954f1cd1974b5833cb6a", kill_on_drop: false }`
[INFO] [stdout] 68092c850c974da3341433b8d7afdbf436da525b6405954f1cd1974b5833cb6a