[INFO] fetching crate back 0.1.1...
[INFO] testing back-0.1.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate back 0.1.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate back 0.1.1
[INFO] finished tweaking crates.io crate back 0.1.1
[INFO] tweaked toml for crates.io crate back 0.1.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate back 0.1.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate back 0.1.1 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dirs v4.0.0
[INFO] [stderr]   Downloaded dirs-sys v0.3.7
[INFO] [stderr]   Downloaded unicode-ident v1.0.6
[INFO] [stderr]   Downloaded xdg v2.4.1
[INFO] [stderr]   Downloaded thiserror-impl v1.0.38
[INFO] [stderr]   Downloaded quote v1.0.23
[INFO] [stderr]   Downloaded thiserror v1.0.38
[INFO] [stderr]   Downloaded redox_users v0.4.3
[INFO] [stderr]   Downloaded os_str_bytes v6.4.1
[INFO] [stderr]   Downloaded xattr v0.2.3
[INFO] [stderr]   Downloaded textwrap v0.16.0
[INFO] [stderr]   Downloaded indexmap v1.9.2
[INFO] [stderr]   Downloaded flate2 v1.0.25
[INFO] [stderr]   Downloaded tar v0.4.38
[INFO] [stderr]   Downloaded miniz_oxide v0.6.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.49
[INFO] [stderr]   Downloaded crc32fast v1.3.2
[INFO] [stderr]   Downloaded getrandom v0.2.8
[INFO] [stderr]   Downloaded filetime v0.2.19
[INFO] [stderr]   Downloaded syn v1.0.107
[INFO] [stderr]   Downloaded clap v3.2.23
[INFO] [stderr]   Downloaded windows_x86_64_gnullvm v0.42.0
[INFO] [stderr]   Downloaded libc v0.2.139
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.42.0
[INFO] [stderr]   Downloaded windows_i686_msvc v0.42.0
[INFO] [stderr]   Downloaded windows_i686_gnu v0.42.0
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.42.0
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.42.0
[INFO] [stderr]   Downloaded windows-sys v0.42.0
[INFO] [stderr]   Downloaded windows_aarch64_gnullvm v0.42.0
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e9a7bbc0984a5c1871a44e78c41662875b9c59c219fd0107aa24c9daa27b2fb
[INFO] running `Command { std: "docker" "start" "-a" "5e9a7bbc0984a5c1871a44e78c41662875b9c59c219fd0107aa24c9daa27b2fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e9a7bbc0984a5c1871a44e78c41662875b9c59c219fd0107aa24c9daa27b2fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e9a7bbc0984a5c1871a44e78c41662875b9c59c219fd0107aa24c9daa27b2fb", kill_on_drop: false }`
[INFO] [stdout] 5e9a7bbc0984a5c1871a44e78c41662875b9c59c219fd0107aa24c9daa27b2fb
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ad25ed69ba7ead9d69e23f6df36ac741c69c89c79e5ff7ed91f0c01e75a3106
[INFO] running `Command { std: "docker" "start" "-a" "3ad25ed69ba7ead9d69e23f6df36ac741c69c89c79e5ff7ed91f0c01e75a3106", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling os_str_bytes v6.4.1
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling textwrap v0.16.0
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling filetime v0.2.19
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling xattr v0.2.3
[INFO] [stderr]    Compiling flate2 v1.0.25
[INFO] [stderr]    Compiling tar v0.4.38
[INFO] [stderr]    Compiling dirs v4.0.0
[INFO] [stderr]    Compiling xdg v2.4.1
[INFO] [stderr]    Compiling clap v3.2.23
[INFO] [stderr]    Compiling back v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.36s
[INFO] running `Command { std: "docker" "inspect" "3ad25ed69ba7ead9d69e23f6df36ac741c69c89c79e5ff7ed91f0c01e75a3106", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ad25ed69ba7ead9d69e23f6df36ac741c69c89c79e5ff7ed91f0c01e75a3106", kill_on_drop: false }`
[INFO] [stdout] 3ad25ed69ba7ead9d69e23f6df36ac741c69c89c79e5ff7ed91f0c01e75a3106
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c19339dc0adab50a966ef3770537ea656c28b895fa4d3ce438a6939431012b3
[INFO] running `Command { std: "docker" "start" "-a" "7c19339dc0adab50a966ef3770537ea656c28b895fa4d3ce438a6939431012b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling back v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "7c19339dc0adab50a966ef3770537ea656c28b895fa4d3ce438a6939431012b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c19339dc0adab50a966ef3770537ea656c28b895fa4d3ce438a6939431012b3", kill_on_drop: false }`
[INFO] [stdout] 7c19339dc0adab50a966ef3770537ea656c28b895fa4d3ce438a6939431012b3
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 54732b0657a074f84f79514805f22bde924c8175b0bbff7447f548362b30084e
[INFO] running `Command { std: "docker" "start" "-a" "54732b0657a074f84f79514805f22bde924c8175b0bbff7447f548362b30084e", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/back-46bc0c500c743839)
[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" "54732b0657a074f84f79514805f22bde924c8175b0bbff7447f548362b30084e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54732b0657a074f84f79514805f22bde924c8175b0bbff7447f548362b30084e", kill_on_drop: false }`
[INFO] [stdout] 54732b0657a074f84f79514805f22bde924c8175b0bbff7447f548362b30084e