[INFO] cloning repository https://github.com/edu-sync/edu-sync
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/edu-sync/edu-sync" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedu-sync%2Fedu-sync", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedu-sync%2Fedu-sync'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e107aa567644aef53aef344c82bd48871ac90dde
[INFO] checking edu-sync/edu-sync against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedu-sync%2Fedu-sync" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/edu-sync/edu-sync on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/edu-sync/edu-sync
[INFO] finished tweaking git repo https://github.com/edu-sync/edu-sync
[INFO] tweaked toml for git repo https://github.com/edu-sync/edu-sync written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/edu-sync/edu-sync 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded darling_macro v0.20.8
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[INFO] [stderr]   Downloaded serde_with_macros v3.6.1
[INFO] [stderr]   Downloaded serde_with v3.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c202fd71fdb36d9f44bac02703f5dc0b4cf121cf8b9ebcac3048a012b2c325b
[INFO] running `Command { std: "docker" "start" "-a" "4c202fd71fdb36d9f44bac02703f5dc0b4cf121cf8b9ebcac3048a012b2c325b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c202fd71fdb36d9f44bac02703f5dc0b4cf121cf8b9ebcac3048a012b2c325b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c202fd71fdb36d9f44bac02703f5dc0b4cf121cf8b9ebcac3048a012b2c325b", kill_on_drop: false }`
[INFO] [stdout] 4c202fd71fdb36d9f44bac02703f5dc0b4cf121cf8b9ebcac3048a012b2c325b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa68eef0c09d2a41ef9c708df606e1d2c8d8b5d4f75e1306864c956503edb138
[INFO] running `Command { std: "docker" "start" "-a" "fa68eef0c09d2a41ef9c708df606e1d2c8d8b5d4f75e1306864c956503edb138", kill_on_drop: false }`
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[INFO] [stderr]    Compiling darling_core v0.20.8
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[INFO] [stderr]    Compiling tokio-macros v2.2.0
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[INFO] [stderr]    Compiling serde_repr v0.1.18
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[INFO] [stderr]    Compiling darling_macro v0.20.8
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[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling darling v0.20.8
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[INFO] [stderr]     Checking hex v0.4.3
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[INFO] [stderr]     Checking reqwest v0.11.24
[INFO] [stderr]     Checking edu-ws v0.1.2 (/opt/rustwide/workdir/edu-ws)
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]  --> edu-ws/src/token/sso.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{str, string::ToString};
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `ToString` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]  --> edu-ws/src/token/mod.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{str, string::ToString};
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `ToString` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]  --> edu-ws/src/token/sso.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{str, string::ToString};
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `ToString` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]  --> edu-ws/src/token/mod.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{str, string::ToString};
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `ToString` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking edu-sync v0.1.2 (/opt/rustwide/workdir/edu-sync)
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking edu-sync-cli v0.1.2 (/opt/rustwide/workdir/edu-sync-cli)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.89s
[INFO] running `Command { std: "docker" "inspect" "fa68eef0c09d2a41ef9c708df606e1d2c8d8b5d4f75e1306864c956503edb138", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa68eef0c09d2a41ef9c708df606e1d2c8d8b5d4f75e1306864c956503edb138", kill_on_drop: false }`
[INFO] [stdout] fa68eef0c09d2a41ef9c708df606e1d2c8d8b5d4f75e1306864c956503edb138