[INFO] cloning repository https://github.com/jjpe/giant-squid
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jjpe/giant-squid" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjpe%2Fgiant-squid", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjpe%2Fgiant-squid'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 356e6c3d45dd904d009d8385fbc57c64b2307a61
[INFO] checking jjpe/giant-squid against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjpe%2Fgiant-squid" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jjpe/giant-squid 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 git repo https://github.com/jjpe/giant-squid
[INFO] finished tweaking git repo https://github.com/jjpe/giant-squid
[INFO] tweaked toml for git repo https://github.com/jjpe/giant-squid written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jjpe/giant-squid 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]  Downloading crates ...
[INFO] [stderr]   Downloaded csv-async v1.2.1
[INFO] [stderr]   Downloaded rust_decimal v1.14.3
[INFO] [stderr]   Downloaded rust_decimal_macros v1.14.3
[INFO] [stderr]   Downloaded io-uring v0.5.1
[INFO] [stderr]   Downloaded tokio-uring v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 4ee16923b54a0b1f24f7bc618bb512d943cc5800a7b9712780d8ff8bded3279f
[INFO] running `Command { std: "docker" "start" "-a" "4ee16923b54a0b1f24f7bc618bb512d943cc5800a7b9712780d8ff8bded3279f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ee16923b54a0b1f24f7bc618bb512d943cc5800a7b9712780d8ff8bded3279f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ee16923b54a0b1f24f7bc618bb512d943cc5800a7b9712780d8ff8bded3279f", kill_on_drop: false }`
[INFO] [stdout] 4ee16923b54a0b1f24f7bc618bb512d943cc5800a7b9712780d8ff8bded3279f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 15f945dcc7b9e40fb292d245d9bb16930f06d56042b50f2691b76d35a85e919a
[INFO] running `Command { std: "docker" "start" "-a" "15f945dcc7b9e40fb292d245d9bb16930f06d56042b50f2691b76d35a85e919a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling tokio v1.8.1
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking rust_decimal v1.14.3
[INFO] [stderr]    Compiling rust_decimal_macros v1.14.3
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking tokio-stream v0.1.7
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking csv-async v1.2.1
[INFO] [stderr]     Checking giant-squid v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TransactionError` is imported redundantly
[INFO] [stdout]  --> src/core/tests.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `TransactionError` is already imported here
[INFO] [stdout] 2 | use crate::error::TransactionError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.53s
[INFO] running `Command { std: "docker" "inspect" "15f945dcc7b9e40fb292d245d9bb16930f06d56042b50f2691b76d35a85e919a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15f945dcc7b9e40fb292d245d9bb16930f06d56042b50f2691b76d35a85e919a", kill_on_drop: false }`
[INFO] [stdout] 15f945dcc7b9e40fb292d245d9bb16930f06d56042b50f2691b76d35a85e919a
[INFO] checking jjpe/giant-squid against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjpe%2Fgiant-squid" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jjpe/giant-squid 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 git repo https://github.com/jjpe/giant-squid
[INFO] finished tweaking git repo https://github.com/jjpe/giant-squid
[INFO] tweaked toml for git repo https://github.com/jjpe/giant-squid written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jjpe/giant-squid 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 2710fb60e989df62e266e22218b2e8d02fc4ebe991580c1b8992fc60dc7d2df7
[INFO] running `Command { std: "docker" "start" "-a" "2710fb60e989df62e266e22218b2e8d02fc4ebe991580c1b8992fc60dc7d2df7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2710fb60e989df62e266e22218b2e8d02fc4ebe991580c1b8992fc60dc7d2df7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2710fb60e989df62e266e22218b2e8d02fc4ebe991580c1b8992fc60dc7d2df7", kill_on_drop: false }`
[INFO] [stdout] 2710fb60e989df62e266e22218b2e8d02fc4ebe991580c1b8992fc60dc7d2df7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] dc95e86674c4dc898f31afb6fe6539f37c4f0d3250aebb9d0da654359bb52096
[INFO] running `Command { std: "docker" "start" "-a" "dc95e86674c4dc898f31afb6fe6539f37c4f0d3250aebb9d0da654359bb52096", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling tokio v1.8.1
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking rust_decimal v1.14.3
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling rust_decimal_macros v1.14.3
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking tokio-stream v0.1.7
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking csv-async v1.2.1
[INFO] [stderr]     Checking giant-squid v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TransactionError` is imported redundantly
[INFO] [stdout]  --> src/core/tests.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `TransactionError` is already imported here
[INFO] [stdout] 2 | use crate::error::TransactionError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.70s
[INFO] running `Command { std: "docker" "inspect" "dc95e86674c4dc898f31afb6fe6539f37c4f0d3250aebb9d0da654359bb52096", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc95e86674c4dc898f31afb6fe6539f37c4f0d3250aebb9d0da654359bb52096", kill_on_drop: false }`
[INFO] [stdout] dc95e86674c4dc898f31afb6fe6539f37c4f0d3250aebb9d0da654359bb52096