[INFO] fetching crate alt 0.1.0...
[INFO] testing alt-0.1.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate alt 0.1.0 into /workspace/builds/worker-84/source
[INFO] validating manifest of crates.io crate alt 0.1.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alt 0.1.0
[INFO] finished tweaking crates.io crate alt 0.1.0
[INFO] tweaked toml for crates.io crate alt 0.1.0 written to /workspace/builds/worker-84/source/Cargo.toml
[INFO] crate crates.io crate alt 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zmq-sys v0.11.0
[INFO] [stderr]   Downloaded ron v0.6.0
[INFO] [stderr]   Downloaded simplelog v0.8.0
[INFO] [stderr]   Downloaded pin-project-internal v0.4.20
[INFO] [stderr]   Downloaded zmq v0.9.2
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.5
[INFO] [stderr]   Downloaded serde_repr v0.1.5
[INFO] [stderr]   Downloaded i3ipc-types v0.8.0
[INFO] [stderr]   Downloaded tokio-i3ipc v0.8.0
[INFO] [stderr]   Downloaded tmq v0.2.1
[INFO] [stderr]   Downloaded pin-project v0.4.20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64f836b474417b7b008a285765c4fada5a6d31114e0d41242f8e12e28b6e5b17
[INFO] running `Command { std: "docker" "start" "-a" "64f836b474417b7b008a285765c4fada5a6d31114e0d41242f8e12e28b6e5b17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64f836b474417b7b008a285765c4fada5a6d31114e0d41242f8e12e28b6e5b17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64f836b474417b7b008a285765c4fada5a6d31114e0d41242f8e12e28b6e5b17", kill_on_drop: false }`
[INFO] [stdout] 64f836b474417b7b008a285765c4fada5a6d31114e0d41242f8e12e28b6e5b17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41412dc15c5865c89d0013cbe5f8ffd10f05248544b0082ace87ff0124f3358f
[INFO] running `Command { std: "docker" "start" "-a" "41412dc15c5865c89d0013cbe5f8ffd10f05248544b0082ace87ff0124f3358f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling pin-project-lite v0.1.7
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]    Compiling once_cell v1.4.0
[INFO] [stderr]    Compiling bytes v0.5.4
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.5
[INFO] [stderr]    Compiling zmq v0.9.2
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]    Compiling base64 v0.12.1
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling zmq-sys v0.11.0
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling simplelog v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling pin-project-internal v0.4.20
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.19
[INFO] [stderr]    Compiling serde_repr v0.1.5
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling thiserror v1.0.19
[INFO] [stderr]    Compiling pin-project v0.4.20
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling tmq v0.2.1
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling ron v0.6.0
[INFO] [stderr]    Compiling i3ipc-types v0.8.0
[INFO] [stderr]    Compiling tokio-i3ipc v0.8.0
[INFO] [stderr]    Compiling alt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.99s
[INFO] running `Command { std: "docker" "inspect" "41412dc15c5865c89d0013cbe5f8ffd10f05248544b0082ace87ff0124f3358f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41412dc15c5865c89d0013cbe5f8ffd10f05248544b0082ace87ff0124f3358f", kill_on_drop: false }`
[INFO] [stdout] 41412dc15c5865c89d0013cbe5f8ffd10f05248544b0082ace87ff0124f3358f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 004bbecdd5d6d116cd872073e6869f4b0ce7608b04b00803f6ce8cca39d2543e
[INFO] running `Command { std: "docker" "start" "-a" "004bbecdd5d6d116cd872073e6869f4b0ce7608b04b00803f6ce8cca39d2543e", kill_on_drop: false }`
[INFO] [stderr]    Compiling alt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `Command { std: "docker" "inspect" "004bbecdd5d6d116cd872073e6869f4b0ce7608b04b00803f6ce8cca39d2543e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "004bbecdd5d6d116cd872073e6869f4b0ce7608b04b00803f6ce8cca39d2543e", kill_on_drop: false }`
[INFO] [stdout] 004bbecdd5d6d116cd872073e6869f4b0ce7608b04b00803f6ce8cca39d2543e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] df99cfd1dea6826c7ea4e16e37e21f58f5a1cf2b6492f3ad877091e8fb2205b2
[INFO] running `Command { std: "docker" "start" "-a" "df99cfd1dea6826c7ea4e16e37e21f58f5a1cf2b6492f3ad877091e8fb2205b2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/alt-314fa10569af8852)
[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" "df99cfd1dea6826c7ea4e16e37e21f58f5a1cf2b6492f3ad877091e8fb2205b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df99cfd1dea6826c7ea4e16e37e21f58f5a1cf2b6492f3ad877091e8fb2205b2", kill_on_drop: false }`
[INFO] [stdout] df99cfd1dea6826c7ea4e16e37e21f58f5a1cf2b6492f3ad877091e8fb2205b2